Merge tag 'spi-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
"Quite a lot of activity in SPI this cycle, almost all of it in drivers
with a few minor improvements and tweaks in the core.

- Updates to pxa2xx to support Intel Broxton and multiple chip selects.
- Support for big endian in the bcm63xx driver.
- Multiple slave support for the mt8173
- New driver for the auxiliary SPI controller in bcm2835 SoCs.
- Support for Layerscale SoCs in the Freescale DSPI driver"

* tag 'spi-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (87 commits)
spi: pxa2xx: Rework self-initiated platform data creation for non-ACPI
spi: pxa2xx: Add support for Intel Broxton
spi: pxa2xx: Detect number of enabled Intel LPSS SPI chip select signals
spi: pxa2xx: Add output control for multiple Intel LPSS chip selects
spi: pxa2xx: Use LPSS prefix for defines that are Intel LPSS specific
spi: Add DSPI support for layerscape family
spi: ti-qspi: improve ->remove() callback
spi/spi-xilinx: Fix race condition on last word read
spi: Drop owner assignment from spi_drivers
spi: Add THIS_MODULE to spi_driver in SPI core
spi: Setup the master controller driver before setting the chipselect
spi: dw: replace magic constant by DW_SPI_DR
spi: mediatek: mt8173 spi multiple devices support
spi: mediatek: handle controller_data in mtk_spi_setup
spi: mediatek: remove mtk_spi_config
spi: mediatek: Update document devicetree bindings to support multiple devices
spi: fix kernel-doc warnings about missing return desc in spi.c
spi: fix kernel-doc warnings about missing return desc in spi.h
spi: pxa2xx: Align a few defines
spi: pxa2xx: Save other reg_cs_ctrl bits when configuring chip select
...

Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.txt

···
+Broadcom BCM2835 auxiliar SPI1/2 controller
+
+The BCM2835 contains two forms of SPI master controller, one known simply as
+SPI0, and the other known as the "Universal SPI Master"; part of the
+auxiliary block. This binding applies to the SPI1/2 controller.
+
+Required properties:
+- compatible: Should be "brcm,bcm2835-aux-spi".
+- reg: Should contain register location and length for the spi block
+- interrupts: Should contain shared interrupt of the aux block
+- clocks: The clock feeding the SPI controller - needs to
+	  point to the auxiliar clock driver of the bcm2835,
+	  as this clock will enable the output gate for the specific
+	  clock.
+- cs-gpios: the cs-gpios (native cs is NOT supported)
+	    see also spi-bus.txt
+
+Example:
+
+spi1@7e215080 {
+	compatible = "brcm,bcm2835-aux-spi";
+	reg = <0x7e215080 0x40>;
+	interrupts = <1 29>;
+	clocks = <&aux_clocks BCM2835_AUX_CLOCK_SPI1>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	cs-gpios = <&gpio 18>, <&gpio 17>, <&gpio 16>;
+};
+
+spi2@7e2150c0 {
+	compatible = "brcm,bcm2835-aux-spi";
+	reg = <0x7e2150c0 0x40>;
+	interrupts = <1 29>;
+	clocks = <&aux_clocks BCM2835_AUX_CLOCK_SPI2>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	cs-gpios = <&gpio 43>, <&gpio 44>, <&gpio 45>;
+};

Documentation/devicetree/bindings/spi/spi-mt65xx.txt

···
   muxes clock, and "spi-clk" for the clock gate.
 
 Optional properties:
+-cs-gpios: see spi-bus.txt, only required for MT8173.
+
 - mediatek,pad-select: specify which pins group(ck/mi/mo/cs) spi
-  controller used, this value should be 0~3, only required for MT8173.
+  controller used. This is a array, the element value should be 0~3,
+  only required for MT8173.
     0: specify GPIO69,70,71,72 for spi pins.
     1: specify GPIO102,103,104,105 for spi pins.
     2: specify GPIO128,129,130,131 for spi pins.
···
 		 <&topckgen CLK_TOP_SPI_SEL>,
 		 <&pericfg CLK_PERI_SPI0>;
 	clock-names = "parent-clk", "sel-clk", "spi-clk";
-
-	mediatek,pad-select = <0>;
+	cs-gpios = <&pio 105 GPIO_ACTIVE_LOW>, <&pio 72 GPIO_ACTIVE_LOW>;
+	mediatek,pad-select = <1>, <0>;
 	status = "disabled";
 };

arch/arm/mach-u300/dummyspichip.c

···
 static struct spi_driver pl022_dummy_driver = {
 	.driver = {
 		.name	= "spi-dummy",
-		.owner	= THIS_MODULE,
 		.of_match_table = pl022_dummy_dt_match,
 	},
 	.probe	= pl022_dummy_probe,

arch/mips/bcm63xx/dev-spi.c

···
 #include <bcm63xx_dev_spi.h>
 #include <bcm63xx_regs.h>
 
-/*
- * register offsets
- */
-static const unsigned long bcm6348_regs_spi[] = {
-	__GEN_SPI_REGS_TABLE(6348)
-};
-
-static const unsigned long bcm6358_regs_spi[] = {
-	__GEN_SPI_REGS_TABLE(6358)
-};
-
-const unsigned long *bcm63xx_regs_spi;
-EXPORT_SYMBOL(bcm63xx_regs_spi);
-
-static __init void bcm63xx_spi_regs_init(void)
-{
-	if (BCMCPU_IS_6338() || BCMCPU_IS_6348())
-		bcm63xx_regs_spi = bcm6348_regs_spi;
-	if (BCMCPU_IS_3368() || BCMCPU_IS_6358() ||
-		BCMCPU_IS_6362() || BCMCPU_IS_6368())
-		bcm63xx_regs_spi = bcm6358_regs_spi;
-}
-
 static struct resource spi_resources[] = {
 	{
 		.start		= -1, /* filled at runtime */
···
 	},
 };
 
-static struct bcm63xx_spi_pdata spi_pdata = {
-	.bus_num		= 0,
-	.num_chipselect		= 8,
-};
-
 static struct platform_device bcm63xx_spi_device = {
-	.name		= "bcm63xx-spi",
 	.id		= -1,
 	.num_resources	= ARRAY_SIZE(spi_resources),
 	.resource	= spi_resources,
-	.dev		= {
-		.platform_data = &spi_pdata,
-	},
 };
 
 int __init bcm63xx_spi_register(void)
···
 	spi_resources[1].start = bcm63xx_get_irq_number(IRQ_SPI);
 
 	if (BCMCPU_IS_6338() || BCMCPU_IS_6348()) {
+		bcm63xx_spi_device.name = "bcm6348-spi",
 		spi_resources[0].end += BCM_6348_RSET_SPI_SIZE - 1;
-		spi_pdata.fifo_size = SPI_6348_MSG_DATA_SIZE;
-		spi_pdata.msg_type_shift = SPI_6348_MSG_TYPE_SHIFT;
-		spi_pdata.msg_ctl_width = SPI_6348_MSG_CTL_WIDTH;
 	}
 
 	if (BCMCPU_IS_3368() || BCMCPU_IS_6358() || BCMCPU_IS_6362() ||
 		BCMCPU_IS_6368()) {
+		bcm63xx_spi_device.name = "bcm6358-spi",
 		spi_resources[0].end += BCM_6358_RSET_SPI_SIZE - 1;
-		spi_pdata.fifo_size = SPI_6358_MSG_DATA_SIZE;
-		spi_pdata.msg_type_shift = SPI_6358_MSG_TYPE_SHIFT;
-		spi_pdata.msg_ctl_width = SPI_6358_MSG_CTL_WIDTH;
 	}
-
-	bcm63xx_spi_regs_init();
 
 	return platform_device_register(&bcm63xx_spi_device);
 }

arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h

···
 
 int __init bcm63xx_spi_register(void);
 
-struct bcm63xx_spi_pdata {
-	unsigned int	fifo_size;
-	unsigned int	msg_type_shift;
-	unsigned int	msg_ctl_width;
-	int		bus_num;
-	int		num_chipselect;
-};
-
-enum bcm63xx_regs_spi {
-	SPI_CMD,
-	SPI_INT_STATUS,
-	SPI_INT_MASK_ST,
-	SPI_INT_MASK,
-	SPI_ST,
-	SPI_CLK_CFG,
-	SPI_FILL_BYTE,
-	SPI_MSG_TAIL,
-	SPI_RX_TAIL,
-	SPI_MSG_CTL,
-	SPI_MSG_DATA,
-	SPI_RX_DATA,
-};
-
-#define __GEN_SPI_REGS_TABLE(__cpu)					\
-	[SPI_CMD]		= SPI_## __cpu ##_CMD,			\
-	[SPI_INT_STATUS]	= SPI_## __cpu ##_INT_STATUS,		\
-	[SPI_INT_MASK_ST]	= SPI_## __cpu ##_INT_MASK_ST,		\
-	[SPI_INT_MASK]		= SPI_## __cpu ##_INT_MASK,		\
-	[SPI_ST]		= SPI_## __cpu ##_ST,			\
-	[SPI_CLK_CFG]		= SPI_## __cpu ##_CLK_CFG,		\
-	[SPI_FILL_BYTE]		= SPI_## __cpu ##_FILL_BYTE,		\
-	[SPI_MSG_TAIL]		= SPI_## __cpu ##_MSG_TAIL,		\
-	[SPI_RX_TAIL]		= SPI_## __cpu ##_RX_TAIL,		\
-	[SPI_MSG_CTL]		= SPI_## __cpu ##_MSG_CTL,		\
-	[SPI_MSG_DATA]		= SPI_## __cpu ##_MSG_DATA,		\
-	[SPI_RX_DATA]		= SPI_## __cpu ##_RX_DATA,
-
-static inline unsigned long bcm63xx_spireg(enum bcm63xx_regs_spi reg)
-{
-	extern const unsigned long *bcm63xx_regs_spi;
-
-	return bcm63xx_regs_spi[reg];
-}
-
 #endif /* BCM63XX_DEV_SPI_H */

arch/mips/txx9/generic/spi_eeprom.c

···
 static struct spi_driver early_seeprom_driver __initdata = {
 	.driver = {
 		.name	= "at25",
-		.owner	= THIS_MODULE,
 	},
 	.probe	= early_seeprom_probe,
 };

drivers/char/tpm/st33zp24/spi.c

···
 
 static struct spi_driver tpm_st33_spi_driver = {
 	.driver = {
-		.owner = THIS_MODULE,
 		.name = TPM_ST33_SPI,
 		.pm = &st33zp24_spi_ops,
 		.of_match_table = of_match_ptr(of_st33zp24_spi_match),

drivers/gpio/gpio-74x164.c

···
 static struct spi_driver gen_74x164_driver = {
 	.driver = {
 		.name		= "74x164",
-		.owner		= THIS_MODULE,
 		.of_match_table	= gen_74x164_dt_ids,
 	},
 	.probe		= gen_74x164_probe,

drivers/gpio/gpio-max7301.c

···
 static struct spi_driver max7301_driver = {
 	.driver = {
 		.name = "max7301",
-		.owner = THIS_MODULE,
 	},
 	.probe = max7301_probe,
 	.remove = max7301_remove,

drivers/gpio/gpio-mc33880.c

···
 static struct spi_driver mc33880_driver = {
 	.driver = {
 		.name		= DRIVER_NAME,
-		.owner		= THIS_MODULE,
 	},
 	.probe		= mc33880_probe,
 	.remove		= mc33880_remove,

drivers/gpio/gpio-mcp23s08.c

···
 static struct i2c_driver mcp230xx_driver = {
 	.driver = {
 		.name	= "mcp230xx",
-		.owner	= THIS_MODULE,
 		.of_match_table = of_match_ptr(mcp23s08_i2c_of_match),
 	},
 	.probe		= mcp230xx_probe,
···
 	.id_table	= mcp23s08_ids,
 	.driver = {
 		.name	= "mcp23s08",
-		.owner	= THIS_MODULE,
 		.of_match_table = of_match_ptr(mcp23s08_spi_of_match),
 	},
 };

drivers/gpu/drm/panel/panel-lg-lg4573.c

···
 	.remove = lg4573_remove,
 	.driver = {
 		.name = "lg4573",
-		.owner = THIS_MODULE,
 		.of_match_table = lg4573_of_match,
 	},
 };

drivers/gpu/drm/panel/panel-samsung-ld9040.c

···
 	.remove = ld9040_remove,
 	.driver = {
 		.name = "panel-samsung-ld9040",
-		.owner = THIS_MODULE,
 		.of_match_table = ld9040_of_match,
 	},
 };

drivers/hwmon/ad7314.c

···
 static struct spi_driver ad7314_driver = {
 	.driver = {
 		.name = "ad7314",
-		.owner = THIS_MODULE,
 	},
 	.probe = ad7314_probe,
 	.remove = ad7314_remove,

drivers/hwmon/adcxx.c

···
 static struct spi_driver adcxx_driver = {
 	.driver = {
 		.name	= "adcxx",
-		.owner	= THIS_MODULE,
 	},
 	.id_table = adcxx_ids,
 	.probe	= adcxx_probe,

drivers/hwmon/ads7871.c

···
 static struct spi_driver ads7871_driver = {
 	.driver = {
 		.name = DEVICE_NAME,
-		.owner = THIS_MODULE,
 	},
 
 	.probe = ads7871_probe,

drivers/hwmon/adt7310.c

···
 static struct spi_driver adt7310_driver = {
 	.driver = {
 		.name	= "adt7310",
-		.owner	= THIS_MODULE,
 		.pm	= ADT7X10_DEV_PM_OPS,
 	},
 	.probe		= adt7310_spi_probe,

drivers/hwmon/lm70.c

···
 static struct spi_driver lm70_driver = {
 	.driver = {
 		.name	= "lm70",
-		.owner	= THIS_MODULE,
 		.of_match_table	= of_match_ptr(lm70_of_ids),
 	},
 	.id_table = lm70_ids,

drivers/hwmon/max1111.c

···
 static struct spi_driver max1111_driver = {
 	.driver		= {
 		.name	= "max1111",
-		.owner	= THIS_MODULE,
 	},
 	.id_table	= max1111_ids,
 	.probe		= max1111_probe,

drivers/iio/accel/kxsd9.c

···
 static struct spi_driver kxsd9_driver = {
 	.driver = {
 		.name = "kxsd9",
-		.owner = THIS_MODULE,
 	},
 	.probe = kxsd9_probe,
 	.remove = kxsd9_remove,

drivers/iio/accel/st_accel_spi.c

···
 
 static struct spi_driver st_accel_driver = {
 	.driver = {
-		.owner = THIS_MODULE,
 		.name = "st-accel-spi",
 	},
 	.probe = st_accel_spi_probe,

drivers/iio/adc/ad7266.c

···
 static struct spi_driver ad7266_driver = {
 	.driver = {
 		.name	= "ad7266",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7266_probe,
 	.remove		= ad7266_remove,

drivers/iio/adc/ad7298.c

···
 static struct spi_driver ad7298_driver = {
 	.driver = {
 		.name	= "ad7298",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7298_probe,
 	.remove		= ad7298_remove,

drivers/iio/adc/ad7476.c

···
 static struct spi_driver ad7476_driver = {
 	.driver = {
 		.name	= "ad7476",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7476_probe,
 	.remove		= ad7476_remove,

drivers/iio/adc/ad7791.c

···
 static struct spi_driver ad7791_driver = {
 	.driver = {
 		.name	= "ad7791",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7791_probe,
 	.remove		= ad7791_remove,

drivers/iio/adc/ad7793.c

···
 static struct spi_driver ad7793_driver = {
 	.driver = {
 		.name	= "ad7793",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7793_probe,
 	.remove		= ad7793_remove,

drivers/iio/adc/ad7887.c

···
 static struct spi_driver ad7887_driver = {
 	.driver = {
 		.name	= "ad7887",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7887_probe,
 	.remove		= ad7887_remove,

drivers/iio/adc/ad7923.c

···
 static struct spi_driver ad7923_driver = {
 	.driver = {
 		.name	= "ad7923",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7923_probe,
 	.remove		= ad7923_remove,

drivers/iio/adc/max1027.c

···
 	.driver = {
 		.name	= "max1027",
 		.of_match_table = of_match_ptr(max1027_adc_dt_ids),
-		.owner	= THIS_MODULE,
 	},
 	.probe		= max1027_probe,
 	.remove		= max1027_remove,

drivers/iio/adc/mcp320x.c

···
 	.driver = {
 		.name = "mcp320x",
 		.of_match_table = of_match_ptr(mcp320x_dt_ids),
-		.owner = THIS_MODULE,
 	},
 	.probe = mcp320x_probe,
 	.remove = mcp320x_remove,

drivers/iio/adc/ti-adc128s052.c

···
 	.driver = {
 		.name = "adc128s052",
 		.of_match_table = of_match_ptr(adc128_of_match),
-		.owner = THIS_MODULE,
 	},
 	.probe = adc128_probe,
 	.remove = adc128_remove,

drivers/iio/amplifiers/ad8366.c

···
 static struct spi_driver ad8366_driver = {
 	.driver = {
 		.name	= KBUILD_MODNAME,
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad8366_probe,
 	.remove		= ad8366_remove,

drivers/iio/common/ssp_sensors/ssp_dev.c

···
 	.remove = ssp_remove,
 	.driver = {
 		.pm = &ssp_pm_ops,
-		.owner = THIS_MODULE,
 		.of_match_table = of_match_ptr(ssp_of_match),
 		.name = "sensorhub"
 	},

drivers/iio/dac/ad5064.c

···
 static struct spi_driver ad5064_spi_driver = {
 	.driver = {
 		   .name = "ad5064",
-		   .owner = THIS_MODULE,
 	},
 	.probe = ad5064_spi_probe,
 	.remove = ad5064_spi_remove,

drivers/iio/dac/ad5360.c

···
 static struct spi_driver ad5360_driver = {
 	.driver = {
 		   .name = "ad5360",
-		   .owner = THIS_MODULE,
 	},
 	.probe = ad5360_probe,
 	.remove = ad5360_remove,

drivers/iio/dac/ad5380.c

···
 static struct spi_driver ad5380_spi_driver = {
 	.driver = {
 		   .name = "ad5380",
-		   .owner = THIS_MODULE,
 	},
 	.probe = ad5380_spi_probe,
 	.remove = ad5380_spi_remove,

drivers/iio/dac/ad5421.c

···
 static struct spi_driver ad5421_driver = {
 	.driver = {
 		   .name = "ad5421",
-		   .owner = THIS_MODULE,
 	},
 	.probe = ad5421_probe,
 };

drivers/iio/dac/ad5446.c

···
 static struct spi_driver ad5446_spi_driver = {
 	.driver = {
 		.name	= "ad5446",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad5446_spi_probe,
 	.remove		= ad5446_spi_remove,

drivers/iio/dac/ad5449.c

···
 static struct spi_driver ad5449_spi_driver = {
 	.driver = {
 		.name = "ad5449",
-		.owner = THIS_MODULE,
 	},
 	.probe = ad5449_spi_probe,
 	.remove = ad5449_spi_remove,

drivers/iio/dac/ad5504.c

···
 static struct spi_driver ad5504_driver = {
 	.driver = {
 		   .name = "ad5504",
-		   .owner = THIS_MODULE,
 		   },
 	.probe = ad5504_probe,
 	.remove = ad5504_remove,

drivers/iio/dac/ad5624r_spi.c

···
 static struct spi_driver ad5624r_driver = {
 	.driver = {
 		   .name = "ad5624r",
-		   .owner = THIS_MODULE,
 		   },
 	.probe = ad5624r_probe,
 	.remove = ad5624r_remove,

drivers/iio/dac/ad5686.c

···
 static struct spi_driver ad5686_driver = {
 	.driver = {
 		   .name = "ad5686",
-		   .owner = THIS_MODULE,
 		   },
 	.probe = ad5686_probe,
 	.remove = ad5686_remove,

drivers/iio/dac/ad5755.c

···
 static struct spi_driver ad5755_driver = {
 	.driver = {
 		.name = "ad5755",
-		.owner = THIS_MODULE,
 	},
 	.probe = ad5755_probe,
 	.id_table = ad5755_id,

drivers/iio/dac/ad5764.c

···
 static struct spi_driver ad5764_driver = {
 	.driver = {
 		.name = "ad5764",
-		.owner = THIS_MODULE,
 	},
 	.probe = ad5764_probe,
 	.remove = ad5764_remove,

drivers/iio/dac/ad5791.c

···
 static struct spi_driver ad5791_driver = {
 	.driver = {
 		   .name = "ad5791",
-		   .owner = THIS_MODULE,
 		   },
 	.probe = ad5791_probe,
 	.remove = ad5791_remove,

drivers/iio/dac/ad7303.c

···
 	.driver = {
 		.name = "ad7303",
 		.of_match_table = of_match_ptr(ad7303_spi_of_match),
-		.owner = THIS_MODULE,
 	},
 	.probe = ad7303_probe,
 	.remove = ad7303_remove,

drivers/iio/dac/mcp4922.c

···
 static struct spi_driver mcp4922_driver = {
 	.driver = {
 		   .name = "mcp4922",
-		   .owner = THIS_MODULE,
 		   },
 	.probe = mcp4922_probe,
 	.remove = mcp4922_remove,

drivers/iio/frequency/ad9523.c

···
 static struct spi_driver ad9523_driver = {
 	.driver = {
 		.name	= "ad9523",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad9523_probe,
 	.remove		= ad9523_remove,

drivers/iio/frequency/adf4350.c

···
 	.driver = {
 		.name	= "adf4350",
 		.of_match_table = of_match_ptr(adf4350_of_match),
-		.owner	= THIS_MODULE,
 	},
 	.probe		= adf4350_probe,
 	.remove		= adf4350_remove,

drivers/iio/gyro/adis16080.c

···
 static struct spi_driver adis16080_driver = {
 	.driver = {
 		.name = "adis16080",
-		.owner = THIS_MODULE,
 	},
 	.probe = adis16080_probe,
 	.remove = adis16080_remove,

drivers/iio/gyro/adis16130.c

···
 static struct spi_driver adis16130_driver = {
 	.driver = {
 		.name = "adis16130",
-		.owner = THIS_MODULE,
 	},
 	.probe = adis16130_probe,
 };

drivers/iio/gyro/adis16136.c

···
 static struct spi_driver adis16136_driver = {
 	.driver = {
 		.name = "adis16136",
-		.owner = THIS_MODULE,
 	},
 	.id_table = adis16136_ids,
 	.probe = adis16136_probe,

drivers/iio/gyro/adis16260.c

···
 static struct spi_driver adis16260_driver = {
 	.driver = {
 		.name = "adis16260",
-		.owner = THIS_MODULE,
 	},
 	.probe = adis16260_probe,
 	.remove = adis16260_remove,

drivers/iio/gyro/adxrs450.c

···
 static struct spi_driver adxrs450_driver = {
 	.driver = {
 		.name = "adxrs450",
-		.owner = THIS_MODULE,
 	},
 	.probe = adxrs450_probe,
 	.id_table	= adxrs450_id,

drivers/iio/gyro/st_gyro_spi.c

···
 
 static struct spi_driver st_gyro_driver = {
 	.driver = {
-		.owner = THIS_MODULE,
 		.name = "st-gyro-spi",
 	},
 	.probe = st_gyro_spi_probe,

drivers/iio/imu/adis16400_core.c

···
 static struct spi_driver adis16400_driver = {
 	.driver = {
 		.name = "adis16400",
-		.owner = THIS_MODULE,
 	},
 	.id_table = adis16400_id,
 	.probe = adis16400_probe,

drivers/iio/imu/adis16480.c

···
 static struct spi_driver adis16480_driver = {
 	.driver = {
 		.name = "adis16480",
-		.owner = THIS_MODULE,
 	},
 	.id_table = adis16480_ids,
 	.probe = adis16480_probe,

drivers/iio/magnetometer/st_magn_spi.c

···
 
 static struct spi_driver st_magn_driver = {
 	.driver = {
-		.owner = THIS_MODULE,
 		.name = "st-magn-spi",
 	},
 	.probe = st_magn_spi_probe,

drivers/iio/pressure/ms5611_spi.c

···
 static struct spi_driver ms5611_driver = {
 	.driver = {
 		.name = "ms5611",
-		.owner = THIS_MODULE,
 	},
 	.id_table = ms5611_id,
 	.probe = ms5611_spi_probe,

drivers/iio/pressure/st_pressure_spi.c

···
 
 static struct spi_driver st_press_driver = {
 	.driver = {
-		.owner = THIS_MODULE,
 		.name = "st-press-spi",
 	},
 	.probe = st_press_spi_probe,

drivers/iio/proximity/as3935.c

···
 	.driver = {
 		.name	= "as3935",
 		.of_match_table = of_match_ptr(as3935_of_match),
-		.owner	= THIS_MODULE,
 		.pm	= AS3935_PM_OPS,
 	},
 	.probe		= as3935_probe,

drivers/input/misc/ad714x-spi.c

···
 static struct spi_driver ad714x_spi_driver = {
 	.driver = {
 		.name	= "ad714x_captouch",
-		.owner	= THIS_MODULE,
 		.pm	= &ad714x_spi_pm,
 	},
 	.probe		= ad714x_spi_probe,

drivers/input/misc/adxl34x-spi.c

···
 static struct spi_driver adxl34x_driver = {
 	.driver = {
 		.name = "adxl34x",
-		.owner = THIS_MODULE,
 		.pm = &adxl34x_spi_pm,
 	},
 	.probe   = adxl34x_spi_probe,

drivers/input/touchscreen/ad7877.c

···
 static struct spi_driver ad7877_driver = {
 	.driver = {
 		.name	= "ad7877",
-		.owner	= THIS_MODULE,
 		.pm	= &ad7877_pm,
 	},
 	.probe		= ad7877_probe,

drivers/input/touchscreen/ad7879-spi.c

···
 static struct spi_driver ad7879_spi_driver = {
 	.driver = {
 		.name	= "ad7879",
-		.owner	= THIS_MODULE,
 		.pm	= &ad7879_pm_ops,
 	},
 	.probe		= ad7879_spi_probe,

drivers/input/touchscreen/ads7846.c

···
 static struct spi_driver ads7846_driver = {
 	.driver = {
 		.name	= "ads7846",
-		.owner	= THIS_MODULE,
 		.pm	= &ads7846_pm,
 		.of_match_table = of_match_ptr(ads7846_dt_ids),
 	},

drivers/input/touchscreen/cyttsp4_spi.c

···
 static struct spi_driver cyttsp4_spi_driver = {
 	.driver = {
 		.name	= CYTTSP4_SPI_NAME,
-		.owner	= THIS_MODULE,
 		.pm	= &cyttsp4_pm_ops,
 	},
 	.probe  = cyttsp4_spi_probe,

drivers/input/touchscreen/cyttsp_spi.c

···
 static struct spi_driver cyttsp_spi_driver = {
 	.driver = {
 		.name	= CY_SPI_NAME,
-		.owner	= THIS_MODULE,
 		.pm	= &cyttsp_pm_ops,
 	},
 	.probe  = cyttsp_spi_probe,

drivers/input/touchscreen/tsc2005.c

···
 static struct spi_driver tsc2005_driver = {
 	.driver	= {
 		.name	= "tsc2005",
-		.owner	= THIS_MODULE,
 		.pm	= &tsc2005_pm_ops,
 	},
 	.probe	= tsc2005_probe,

drivers/leds/leds-dac124s085.c

···
 	.remove		= dac124s085_remove,
 	.driver = {
 		.name	= "dac124s085",
-		.owner	= THIS_MODULE,
 	},
 };
 

drivers/media/i2c/s5c73m3/s5c73m3-spi.c

···
 	spidrv->remove = s5c73m3_spi_remove;
 	spidrv->probe = s5c73m3_spi_probe;
 	spidrv->driver.name = S5C73M3_SPI_DRV_NAME;
-	spidrv->driver.owner = THIS_MODULE;
 	spidrv->driver.of_match_table = s5c73m3_spi_ids;
 
 	return spi_register_driver(spidrv);

drivers/media/tuners/msi001.c

···
 static struct spi_driver msi001_driver = {
 	.driver = {
 		.name	= "msi001",
-		.owner	= THIS_MODULE,
 		.suppress_bind_attrs = true,
 	},
 	.probe		= msi001_probe,

drivers/mfd/arizona-spi.c

···
 static struct spi_driver arizona_spi_driver = {
 	.driver = {
 		.name	= "arizona",
-		.owner	= THIS_MODULE,
 		.pm	= &arizona_pm_ops,
 		.of_match_table	= of_match_ptr(arizona_of_match),
 	},

drivers/mfd/cros_ec_spi.c

···
 	.driver	= {
 		.name	= "cros-ec-spi",
 		.of_match_table = of_match_ptr(cros_ec_spi_of_match),
-		.owner	= THIS_MODULE,
 		.pm	= &cros_ec_spi_pm_ops,
 	},
 	.probe		= cros_ec_spi_probe,

drivers/mfd/da9052-spi.c

···
 	.id_table = da9052_spi_id,
 	.driver = {
 		.name = "da9052",
-		.owner = THIS_MODULE,
 	},
 };
 

drivers/mfd/ezx-pcap.c

···
 	.remove = ezx_pcap_remove,
 	.driver = {
 		.name	= "ezx-pcap",
-		.owner	= THIS_MODULE,
 	},
 };
 

drivers/mfd/mc13xxx-spi.c

···
 	.id_table = mc13xxx_device_id,
 	.driver = {
 		.name = "mc13xxx",
-		.owner = THIS_MODULE,
 		.of_match_table = mc13xxx_dt_ids,
 	},
 	.probe = mc13xxx_spi_probe,

drivers/mfd/stmpe-spi.c

···
 	.driver = {
 		.name	= "stmpe-spi",
 		.of_match_table = of_match_ptr(stmpe_spi_of_match),
-		.owner	= THIS_MODULE,
 #ifdef CONFIG_PM
 		.pm	= &stmpe_dev_pm_ops,
 #endif

drivers/mfd/tps65912-spi.c

···
 static struct spi_driver tps65912_spi_driver = {
 	.driver = {
 		.name = "tps65912",
-		.owner = THIS_MODULE,
 	},
 	.probe	= tps65912_spi_probe,
 	.remove = tps65912_spi_remove,

drivers/mfd/wm831x-spi.c

···
 static struct spi_driver wm831x_spi_driver = {
 	.driver = {
 		.name	= "wm831x",
-		.owner	= THIS_MODULE,
 		.pm	= &wm831x_spi_pm,
 	},
 	.id_table	= wm831x_spi_ids,

drivers/misc/ad525x_dpot-spi.c

···
 static struct spi_driver ad_dpot_spi_driver = {
 	.driver = {
 		.name	= "ad_dpot",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad_dpot_spi_probe,
 	.remove		= ad_dpot_spi_remove,

drivers/misc/bmp085-spi.c

···
 
 static struct spi_driver bmp085_spi_driver = {
 	.driver = {
-		.owner	= THIS_MODULE,
 		.name	= BMP085_NAME,
 		.of_match_table = bmp085_of_match
 	},

drivers/misc/eeprom/at25.c

···
 static struct spi_driver at25_driver = {
 	.driver = {
 		.name		= "at25",
-		.owner		= THIS_MODULE,
 		.of_match_table = at25_of_match,
 	},
 	.probe		= at25_probe,

drivers/misc/eeprom/eeprom_93xx46.c

···
 static struct spi_driver eeprom_93xx46_driver = {
 	.driver = {
 		.name	= "93xx46",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= eeprom_93xx46_probe,
 	.remove		= eeprom_93xx46_remove,

drivers/misc/lattice-ecp3-config.c

···
 static struct spi_driver lattice_ecp3_driver = {
 	.driver = {
 		.name = "lattice-ecp3",
-		.owner = THIS_MODULE,
 	},
 	.probe = lattice_ecp3_probe,
 	.remove = lattice_ecp3_remove,

drivers/misc/lis3lv02d/lis3lv02d_spi.c

···
 static struct spi_driver lis302dl_spi_driver = {
 	.driver	 = {
 		.name   = DRV_NAME,
-		.owner  = THIS_MODULE,
 		.pm	= &lis3lv02d_spi_pm,
 		.of_match_table = of_match_ptr(lis302dl_spi_dt_ids),
 	},

drivers/misc/ti_dac7512.c

···
 static struct spi_driver dac7512_driver = {
 	.driver = {
 		.name	= "dac7512",
-		.owner	= THIS_MODULE,
 		.of_match_table = of_match_ptr(dac7512_of_match),
 	},
 	.probe	= dac7512_probe,

drivers/mmc/host/mmc_spi.c

···
 static struct spi_driver mmc_spi_driver = {
 	.driver = {
 		.name =		"mmc_spi",
-		.owner =	THIS_MODULE,
 		.of_match_table = mmc_spi_of_match_table,
 	},
 	.probe =	mmc_spi_probe,

drivers/mtd/devices/m25p80.c

···
 static struct spi_driver m25p80_driver = {
 	.driver = {
 		.name	= "m25p80",
-		.owner	= THIS_MODULE,
 		.of_match_table = m25p_of_table,
 	},
 	.id_table	= m25p_ids,

drivers/mtd/devices/mtd_dataflash.c

···
 static struct spi_driver dataflash_driver = {
 	.driver = {
 		.name		= "mtd_dataflash",
-		.owner		= THIS_MODULE,
 		.of_match_table = of_match_ptr(dataflash_dt_ids),
 	},
 

drivers/mtd/devices/sst25l.c

···
 static struct spi_driver sst25l_driver = {
 	.driver = {
 		.name	= "sst25l",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= sst25l_probe,
 	.remove		= sst25l_remove,

drivers/net/can/spi/mcp251x.c

···
 static struct spi_driver mcp251x_can_driver = {
 	.driver = {
 		.name = DEVICE_NAME,
-		.owner = THIS_MODULE,
 		.of_match_table = mcp251x_of_match,
 		.pm = &mcp251x_can_pm_ops,
 	},

drivers/net/ethernet/micrel/ks8851.c

···
 	.driver = {
 		.name = "ks8851",
 		.of_match_table = ks8851_match_table,
-		.owner = THIS_MODULE,
 		.pm = &ks8851_pm_ops,
 	},
 	.probe = ks8851_probe,

drivers/net/ethernet/microchip/enc28j60.c

···
 static struct spi_driver enc28j60_driver = {
 	.driver = {
 		   .name = DRV_NAME,
-		   .owner = THIS_MODULE,
 	 },
 	.probe = enc28j60_probe,
 	.remove = enc28j60_remove,

drivers/net/ethernet/qualcomm/qca_spi.c

···
 static struct spi_driver qca_spi_driver = {
 	.driver	= {
 		.name	= QCASPI_DRV_NAME,
-		.owner	= THIS_MODULE,
 		.of_match_table = qca_spi_of_match,
 	},
 	.id_table = qca_spi_id,

drivers/net/ieee802154/at86rf230.c

···
 	.driver = {
 		.of_match_table = of_match_ptr(at86rf230_of_match),
 		.name	= "at86rf230",
-		.owner	= THIS_MODULE,
 	},
 	.probe      = at86rf230_probe,
 	.remove     = at86rf230_remove,

drivers/net/ieee802154/cc2520.c

···
 static struct spi_driver cc2520_driver = {
 	.driver = {
 		.name = "cc2520",
-		.owner = THIS_MODULE,
 		.of_match_table = of_match_ptr(cc2520_of_ids),
 	},
 	.id_table = cc2520_ids,

drivers/net/ieee802154/mrf24j40.c

···
 	.driver = {
 		.of_match_table = of_match_ptr(mrf24j40_of_match),
 		.name = "mrf24j40",
-		.owner = THIS_MODULE,
 	},
 	.id_table = mrf24j40_ids,
 	.probe = mrf24j40_probe,

drivers/net/phy/spi_ks8995.c

···
 static struct spi_driver ks8995_driver = {
 	.driver = {
 		.name	    = "spi-ks8995",
-		.owner	   = THIS_MODULE,
 	},
 	.probe	  = ks8995_probe,
 	.remove	  = ks8995_remove,

drivers/net/wireless/cw1200/cw1200_spi.c

···
 	.remove		= cw1200_spi_disconnect,
 	.driver = {
 		.name		= "cw1200_wlan_spi",
-		.owner          = THIS_MODULE,
 #ifdef CONFIG_PM
 		.pm		= &cw1200_pm_ops,
 #endif

drivers/net/wireless/libertas/if_spi.c

···
 	.remove = libertas_spi_remove,
 	.driver = {
 		.name	= "libertas_spi",
-		.owner	= THIS_MODULE,
 		.pm	= &if_spi_pm_ops,
 	},
 };

drivers/net/wireless/p54/p54spi.c

···
 static struct spi_driver p54spi_driver = {
 	.driver = {
 		.name		= "p54spi",
-		.owner		= THIS_MODULE,
 	},
 
 	.probe		= p54spi_probe,

drivers/net/wireless/ti/wl1251/spi.c

···
 static struct spi_driver wl1251_spi_driver = {
 	.driver = {
 		.name		= DRIVER_NAME,
-		.owner		= THIS_MODULE,
 	},
 
 	.probe		= wl1251_spi_probe,

drivers/net/wireless/ti/wlcore/spi.c

···
 static struct spi_driver wl1271_spi_driver = {
 	.driver = {
 		.name		= "wl1271_spi",
-		.owner		= THIS_MODULE,
 	},
 
 	.probe		= wl1271_probe,

drivers/nfc/st-nci/spi.c

···
 
 static struct spi_driver st_nci_spi_driver = {
 	.driver = {
-		.owner = THIS_MODULE,
 		.name = ST_NCI_SPI_DRIVER_NAME,
 		.of_match_table = of_match_ptr(of_st_nci_spi_match),
 	},

drivers/nfc/trf7970a.c

···
 	.driver		= {
 		.name	= "trf7970a",
 		.of_match_table = of_match_ptr(trf7970a_of_match),
-		.owner	= THIS_MODULE,
 		.pm	= &trf7970a_pm_ops,
 	},
 };

drivers/regulator/tps6524x-regulator.c

···
 	.probe		= pmic_probe,
 	.driver		= {
 		.name	= "tps6524x",
-		.owner	= THIS_MODULE,
 	},
 };
 

drivers/rtc/rtc-ds1305.c

···
 
 static struct spi_driver ds1305_driver = {
 	.driver.name	= "rtc-ds1305",
-	.driver.owner	= THIS_MODULE,
 	.probe		= ds1305_probe,
 	.remove		= ds1305_remove,
 	/* REVISIT add suspend/resume */

drivers/rtc/rtc-ds1343.c

···
 static struct spi_driver ds1343_driver = {
 	.driver = {
 		.name = "ds1343",
-		.owner = THIS_MODULE,
 		.pm = &ds1343_pm,
 	},
 	.probe = ds1343_probe,

drivers/rtc/rtc-ds1347.c

···
 static struct spi_driver ds1347_driver = {
 	.driver = {
 		.name = "ds1347",
-		.owner = THIS_MODULE,
 	},
 	.probe = ds1347_probe,
 };

drivers/rtc/rtc-ds1390.c

···
 static struct spi_driver ds1390_driver = {
 	.driver = {
 		.name	= "rtc-ds1390",
-		.owner	= THIS_MODULE,
 	},
 	.probe	= ds1390_probe,
 };

drivers/rtc/rtc-ds3234.c

···
 static struct spi_driver ds3234_driver = {
 	.driver = {
 		.name	 = "ds3234",
-		.owner	= THIS_MODULE,
 	},
 	.probe	 = ds3234_probe,
 };

drivers/rtc/rtc-m41t93.c

···
 static struct spi_driver m41t93_driver = {
 	.driver = {
 		.name	= "rtc-m41t93",
-		.owner	= THIS_MODULE,
 	},
 	.probe	= m41t93_probe,
 };

drivers/rtc/rtc-m41t94.c

···
 static struct spi_driver m41t94_driver = {
 	.driver = {
 		.name	= "rtc-m41t94",
-		.owner	= THIS_MODULE,
 	},
 	.probe	= m41t94_probe,
 };

drivers/rtc/rtc-max6902.c

···
 static struct spi_driver max6902_driver = {
 	.driver = {
 		.name	= "rtc-max6902",
-		.owner	= THIS_MODULE,
 	},
 	.probe	= max6902_probe,
 };

drivers/rtc/rtc-mcp795.c

···
 static struct spi_driver mcp795_driver = {
 		.driver = {
 				.name = "rtc-mcp795",
-				.owner = THIS_MODULE,
 		},
 		.probe = mcp795_probe,
 };

drivers/rtc/rtc-pcf2123.c

···
 static struct spi_driver pcf2123_driver = {
 	.driver	= {
 			.name	= "rtc-pcf2123",
-			.owner	= THIS_MODULE,
 			.of_match_table = of_match_ptr(pcf2123_dt_ids),
 	},
 	.probe	= pcf2123_probe,

drivers/rtc/rtc-r9701.c

···
 static struct spi_driver r9701_driver = {
 	.driver = {
 		.name	= "rtc-r9701",
-		.owner	= THIS_MODULE,
 	},
 	.probe	= r9701_probe,
 	.remove = r9701_remove,

drivers/rtc/rtc-rs5c348.c

···
 static struct spi_driver rs5c348_driver = {
 	.driver = {
 		.name	= "rtc-rs5c348",
-		.owner	= THIS_MODULE,
 	},
 	.probe	= rs5c348_probe,
 };

drivers/rtc/rtc-rx4581.c

···
 static struct spi_driver rx4581_driver = {
 	.driver = {
 		.name	= "rtc-rx4581",
-		.owner	= THIS_MODULE,
 	},
 	.probe	= rx4581_probe,
 	.id_table = rx4581_id,

drivers/spi/Kconfig

···
 	  is for the regular SPI controller. Slave mode operation is not also
 	  not supported.
 
+config SPI_BCM2835AUX
+	tristate "BCM2835 SPI auxiliary controller"
+	depends on ARCH_BCM2835 || COMPILE_TEST
+	depends on GPIOLIB
+	help
+	  This selects a driver for the Broadcom BCM2835 SPI aux master.
+
+	  The BCM2835 contains two types of SPI master controller; the
+	  "universal SPI master", and the regular SPI controller.
+	  This driver is for the universal/auxiliary SPI controller.
+
 config SPI_BFIN5XX
 	tristate "SPI controller driver for ADI Blackfin5xx"
 	depends on BLACKFIN && !BF60x
···
 
 config SPI_BCM63XX
 	tristate "Broadcom BCM63xx SPI controller"
-	depends on BCM63XX
+	depends on BCM63XX || COMPILE_TEST
 	help
           Enable support for the SPI controller on the Broadcom BCM63xx SoCs.
 
···
 config SPI_FSL_DSPI
 	tristate "Freescale DSPI controller"
 	select REGMAP_MMIO
-	depends on SOC_VF610 || SOC_LS1021A || COMPILE_TEST
+	depends on SOC_VF610 || SOC_LS1021A || ARCH_LAYERSCAPE || COMPILE_TEST
 	help
 	  This enables support for the Freescale DSPI controller in master
 	  mode. VF610 platform uses the controller.

drivers/spi/Makefile

···
 obj-$(CONFIG_SPI_ATH79)			+= spi-ath79.o
 obj-$(CONFIG_SPI_AU1550)		+= spi-au1550.o
 obj-$(CONFIG_SPI_BCM2835)		+= spi-bcm2835.o
+obj-$(CONFIG_SPI_BCM2835AUX)		+= spi-bcm2835aux.o
 obj-$(CONFIG_SPI_BCM53XX)		+= spi-bcm53xx.o
 obj-$(CONFIG_SPI_BCM63XX)		+= spi-bcm63xx.o
 obj-$(CONFIG_SPI_BCM63XX_HSSPI)		+= spi-bcm63xx-hsspi.o

drivers/spi/spi-ath79.c

···
 	sp->bitbang.flags = SPI_CS_HIGH;
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (r == NULL) {
-		ret = -ENOENT;
-		goto err_put_master;
-	}
-
-	sp->base = devm_ioremap(&pdev->dev, r->start, resource_size(r));
-	if (!sp->base) {
-		ret = -ENXIO;
+	sp->base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(sp->base)) {
+		ret = PTR_ERR(sp->base);
 		goto err_put_master;
 	}
 

drivers/spi/spi-atmel.c

···
 
 	*plen = len;
 
-	if (atmel_spi_dma_slave_config(as, &slave_config, 8))
+	if (atmel_spi_dma_slave_config(as, &slave_config,
+				       xfer->bits_per_word))
 		goto err_exit;
 
 	/* Send both scatterlists */
···
 	 * Calculate the lowest divider that satisfies the
 	 * constraint, assuming div32/fdiv/mbz == 0.
 	 */
-	if (xfer->speed_hz)
-		scbr = DIV_ROUND_UP(bus_hz, xfer->speed_hz);
-	else
-		/*
-		 * This can happend if max_speed is null.
-		 * In this case, we set the lowest possible speed
-		 */
-		scbr = 0xff;
+	scbr = DIV_ROUND_UP(bus_hz, xfer->speed_hz);
 
 	/*
 	 * If the resulting divider doesn't fit into the
···
 		return -EINVAL;
 	}
 
-	if (xfer->bits_per_word) {
-		asd = spi->controller_state;
-		bits = (asd->csr >> 4) & 0xf;
-		if (bits != xfer->bits_per_word - 8) {
-			dev_dbg(&spi->dev,
+	asd = spi->controller_state;
+	bits = (asd->csr >> 4) & 0xf;
+	if (bits != xfer->bits_per_word - 8) {
+		dev_dbg(&spi->dev,
 			"you can't yet change bits_per_word in transfers\n");
-			return -ENOPROTOOPT;
-		}
+		return -ENOPROTOOPT;
 	}
 
 	/*

drivers/spi/spi-au1550.c

···
 	unsigned bpw, hz;
 	u32 cfg, stat;
 
-	bpw = spi->bits_per_word;
-	hz = spi->max_speed_hz;
 	if (t) {
-		if (t->bits_per_word)
-			bpw = t->bits_per_word;
-		if (t->speed_hz)
-			hz = t->speed_hz;
+		bpw = t->bits_per_word;
+		hz = t->speed_hz;
+	} else {
+		bpw = spi->bits_per_word;
+		hz = spi->max_speed_hz;
 	}
 
 	if (!hz)

drivers/spi/spi-bcm2835.c

···
 		goto out_master_put;
 	}
 
-	bs->irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
+	bs->irq = platform_get_irq(pdev, 0);
 	if (bs->irq <= 0) {
 		dev_err(&pdev->dev, "could not get IRQ: %d\n", bs->irq);
 		err = bs->irq ? bs->irq : -ENODEV;
···
 
 	clk_prepare_enable(bs->clk);
 
+	bcm2835_dma_init(master, &pdev->dev);
+
+	/* initialise the hardware with the default polarities */
+	bcm2835_wr(bs, BCM2835_SPI_CS,
+		   BCM2835_SPI_CS_CLEAR_RX | BCM2835_SPI_CS_CLEAR_TX);
+
 	err = devm_request_irq(&pdev->dev, bs->irq, bcm2835_spi_interrupt, 0,
 			       dev_name(&pdev->dev), master);
 	if (err) {
 		dev_err(&pdev->dev, "could not request IRQ: %d\n", err);
 		goto out_clk_disable;
 	}
-
-	bcm2835_dma_init(master, &pdev->dev);
-
-	/* initialise the hardware with the default polarities */
-	bcm2835_wr(bs, BCM2835_SPI_CS,
-		   BCM2835_SPI_CS_CLEAR_RX | BCM2835_SPI_CS_CLEAR_TX);
 
 	err = devm_spi_register_master(&pdev->dev, master);
 	if (err) {

drivers/spi/spi-bcm2835aux.c

···
+/*
+ * Driver for Broadcom BCM2835 auxiliary SPI Controllers
+ *
+ * the driver does not rely on the native chipselects at all
+ * but only uses the gpio type chipselects
+ *
+ * Based on: spi-bcm2835.c
+ *
+ * Copyright (C) 2015 Martin Sperl
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/of_irq.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+#include <linux/spinlock.h>
+
+/*
+ * spi register defines
+ *
+ * note there is garbage in the "official" documentation,
+ * so some data is taken from the file:
+ *   brcm_usrlib/dag/vmcsx/vcinclude/bcm2708_chip/aux_io.h
+ * inside of:
+ *   http://www.broadcom.com/docs/support/videocore/Brcm_Android_ICS_Graphics_Stack.tar.gz
+ */
+
+/* SPI register offsets */
+#define BCM2835_AUX_SPI_CNTL0	0x00
+#define BCM2835_AUX_SPI_CNTL1	0x04
+#define BCM2835_AUX_SPI_STAT	0x08
+#define BCM2835_AUX_SPI_PEEK	0x0C
+#define BCM2835_AUX_SPI_IO	0x20
+#define BCM2835_AUX_SPI_TXHOLD	0x30
+
+/* Bitfields in CNTL0 */
+#define BCM2835_AUX_SPI_CNTL0_SPEED	0xFFF00000
+#define BCM2835_AUX_SPI_CNTL0_SPEED_MAX	0xFFF
+#define BCM2835_AUX_SPI_CNTL0_SPEED_SHIFT	20
+#define BCM2835_AUX_SPI_CNTL0_CS	0x000E0000
+#define BCM2835_AUX_SPI_CNTL0_POSTINPUT	0x00010000
+#define BCM2835_AUX_SPI_CNTL0_VAR_CS	0x00008000
+#define BCM2835_AUX_SPI_CNTL0_VAR_WIDTH	0x00004000
+#define BCM2835_AUX_SPI_CNTL0_DOUTHOLD	0x00003000
+#define BCM2835_AUX_SPI_CNTL0_ENABLE	0x00000800
+#define BCM2835_AUX_SPI_CNTL0_CPHA_IN	0x00000400
+#define BCM2835_AUX_SPI_CNTL0_CLEARFIFO	0x00000200
+#define BCM2835_AUX_SPI_CNTL0_CPHA_OUT	0x00000100
+#define BCM2835_AUX_SPI_CNTL0_CPOL	0x00000080
+#define BCM2835_AUX_SPI_CNTL0_MSBF_OUT	0x00000040
+#define BCM2835_AUX_SPI_CNTL0_SHIFTLEN	0x0000003F
+
+/* Bitfields in CNTL1 */
+#define BCM2835_AUX_SPI_CNTL1_CSHIGH	0x00000700
+#define BCM2835_AUX_SPI_CNTL1_IDLE	0x00000080
+#define BCM2835_AUX_SPI_CNTL1_TXEMPTY	0x00000040
+#define BCM2835_AUX_SPI_CNTL1_MSBF_IN	0x00000002
+#define BCM2835_AUX_SPI_CNTL1_KEEP_IN	0x00000001
+
+/* Bitfields in STAT */
+#define BCM2835_AUX_SPI_STAT_TX_LVL	0xFF000000
+#define BCM2835_AUX_SPI_STAT_RX_LVL	0x00FF0000
+#define BCM2835_AUX_SPI_STAT_TX_FULL	0x00000400
+#define BCM2835_AUX_SPI_STAT_TX_EMPTY	0x00000200
+#define BCM2835_AUX_SPI_STAT_RX_FULL	0x00000100
+#define BCM2835_AUX_SPI_STAT_RX_EMPTY	0x00000080
+#define BCM2835_AUX_SPI_STAT_BUSY	0x00000040
+#define BCM2835_AUX_SPI_STAT_BITCOUNT	0x0000003F
+
+/* timeout values */
+#define BCM2835_AUX_SPI_POLLING_LIMIT_US	30
+#define BCM2835_AUX_SPI_POLLING_JIFFIES		2
+
+#define BCM2835_AUX_SPI_MODE_BITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH \
+				  | SPI_NO_CS)
+
+struct bcm2835aux_spi {
+	void __iomem *regs;
+	struct clk *clk;
+	int irq;
+	u32 cntl[2];
+	const u8 *tx_buf;
+	u8 *rx_buf;
+	int tx_len;
+	int rx_len;
+	int pending;
+};
+
+static inline u32 bcm2835aux_rd(struct bcm2835aux_spi *bs, unsigned reg)
+{
+	return readl(bs->regs + reg);
+}
+
+static inline void bcm2835aux_wr(struct bcm2835aux_spi *bs, unsigned reg,
+				 u32 val)
+{
+	writel(val, bs->regs + reg);
+}
+
+static inline void bcm2835aux_rd_fifo(struct bcm2835aux_spi *bs)
+{
+	u32 data;
+	int count = min(bs->rx_len, 3);
+
+	data = bcm2835aux_rd(bs, BCM2835_AUX_SPI_IO);
+	if (bs->rx_buf) {
+		switch (count) {
+		case 4:
+			*bs->rx_buf++ = (data >> 24) & 0xff;
+			/* fallthrough */
+		case 3:
+			*bs->rx_buf++ = (data >> 16) & 0xff;
+			/* fallthrough */
+		case 2:
+			*bs->rx_buf++ = (data >> 8) & 0xff;
+			/* fallthrough */
+		case 1:
+			*bs->rx_buf++ = (data >> 0) & 0xff;
+			/* fallthrough - no default */
+		}
+	}
+	bs->rx_len -= count;
+	bs->pending -= count;
+}
+
+static inline void bcm2835aux_wr_fifo(struct bcm2835aux_spi *bs)
+{
+	u32 data;
+	u8 byte;
+	int count;
+	int i;
+
+	/* gather up to 3 bytes to write to the FIFO */
+	count = min(bs->tx_len, 3);
+	data = 0;
+	for (i = 0; i < count; i++) {
+		byte = bs->tx_buf ? *bs->tx_buf++ : 0;
+		data |= byte << (8 * (2 - i));
+	}
+
+	/* and set the variable bit-length */
+	data |= (count * 8) << 24;
+
+	/* and decrement length */
+	bs->tx_len -= count;
+	bs->pending += count;
+
+	/* write to the correct TX-register */
+	if (bs->tx_len)
+		bcm2835aux_wr(bs, BCM2835_AUX_SPI_TXHOLD, data);
+	else
+		bcm2835aux_wr(bs, BCM2835_AUX_SPI_IO, data);
+}
+
+static void bcm2835aux_spi_reset_hw(struct bcm2835aux_spi *bs)
+{
+	/* disable spi clearing fifo and interrupts */
+	bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL1, 0);
+	bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL0,
+		      BCM2835_AUX_SPI_CNTL0_CLEARFIFO);
+}
+
+static irqreturn_t bcm2835aux_spi_interrupt(int irq, void *dev_id)
+{
+	struct spi_master *master = dev_id;
+	struct bcm2835aux_spi *bs = spi_master_get_devdata(master);
+	irqreturn_t ret = IRQ_NONE;
+
+	/* check if we have data to read */
+	while (bs->rx_len &&
+	       (!(bcm2835aux_rd(bs, BCM2835_AUX_SPI_STAT) &
+		  BCM2835_AUX_SPI_STAT_RX_EMPTY))) {
+		bcm2835aux_rd_fifo(bs);
+		ret = IRQ_HANDLED;
+	}
+
+	/* check if we have data to write */
+	while (bs->tx_len &&
+	       (bs->pending < 12) &&
+	       (!(bcm2835aux_rd(bs, BCM2835_AUX_SPI_STAT) &
+		  BCM2835_AUX_SPI_STAT_TX_FULL))) {
+		bcm2835aux_wr_fifo(bs);
+		ret = IRQ_HANDLED;
+	}
+
+	/* and check if we have reached "done" */
+	while (bs->rx_len &&
+	       (!(bcm2835aux_rd(bs, BCM2835_AUX_SPI_STAT) &
+		  BCM2835_AUX_SPI_STAT_BUSY))) {
+		bcm2835aux_rd_fifo(bs);
+		ret = IRQ_HANDLED;
+	}
+
+	/* and if rx_len is 0 then wake up completion and disable spi */
+	if (!bs->rx_len) {
+		bcm2835aux_spi_reset_hw(bs);
+		complete(&master->xfer_completion);
+	}
+
+	/* and return */
+	return ret;
+}
+
+static int __bcm2835aux_spi_transfer_one_irq(struct spi_master *master,
+					     struct spi_device *spi,
+					     struct spi_transfer *tfr)
+{
+	struct bcm2835aux_spi *bs = spi_master_get_devdata(master);
+
+	/* enable interrupts */
+	bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL1, bs->cntl[1] |
+		BCM2835_AUX_SPI_CNTL1_TXEMPTY |
+		BCM2835_AUX_SPI_CNTL1_IDLE);
+
+	/* and wait for finish... */
+	return 1;
+}
+
+static int bcm2835aux_spi_transfer_one_irq(struct spi_master *master,
+					   struct spi_device *spi,
+					   struct spi_transfer *tfr)
+{
+	struct bcm2835aux_spi *bs = spi_master_get_devdata(master);
+
+	/* fill in registers and fifos before enabling interrupts */
+	bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL1, bs->cntl[1]);
+	bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL0, bs->cntl[0]);
+
+	/* fill in tx fifo with data before enabling interrupts */
+	while ((bs->tx_len) &&
+	       (bs->pending < 12) &&
+	       (!(bcm2835aux_rd(bs, BCM2835_AUX_SPI_STAT) &
+		  BCM2835_AUX_SPI_STAT_TX_FULL))) {
+		bcm2835aux_wr_fifo(bs);
+	}
+
+	/* now run the interrupt mode */
+	return __bcm2835aux_spi_transfer_one_irq(master, spi, tfr);
+}
+
+static int bcm2835aux_spi_transfer_one_poll(struct spi_master *master,
+					    struct spi_device *spi,
+					struct spi_transfer *tfr)
+{
+	struct bcm2835aux_spi *bs = spi_master_get_devdata(master);
+	unsigned long timeout;
+	u32 stat;
+
+	/* configure spi */
+	bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL1, bs->cntl[1]);
+	bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL0, bs->cntl[0]);
+
+	/* set the timeout */
+	timeout = jiffies + BCM2835_AUX_SPI_POLLING_JIFFIES;
+
+	/* loop until finished the transfer */
+	while (bs->rx_len) {
+		/* read status */
+		stat = bcm2835aux_rd(bs, BCM2835_AUX_SPI_STAT);
+
+		/* fill in tx fifo with remaining data */
+		if ((bs->tx_len) && (!(stat & BCM2835_AUX_SPI_STAT_TX_FULL))) {
+			bcm2835aux_wr_fifo(bs);
+			continue;
+		}
+
+		/* read data from fifo for both cases */
+		if (!(stat & BCM2835_AUX_SPI_STAT_RX_EMPTY)) {
+			bcm2835aux_rd_fifo(bs);
+			continue;
+		}
+		if (!(stat & BCM2835_AUX_SPI_STAT_BUSY)) {
+			bcm2835aux_rd_fifo(bs);
+			continue;
+		}
+
+		/* there is still data pending to read check the timeout */
+		if (bs->rx_len && time_after(jiffies, timeout)) {
+			dev_dbg_ratelimited(&spi->dev,
+					    "timeout period reached: jiffies: %lu remaining tx/rx: %d/%d - falling back to interrupt mode\n",
+					    jiffies - timeout,
+					    bs->tx_len, bs->rx_len);
+			/* forward to interrupt handler */
+			return __bcm2835aux_spi_transfer_one_irq(master,
+							       spi, tfr);
+		}
+	}
+
+	/* Transfer complete - reset SPI HW */
+	bcm2835aux_spi_reset_hw(bs);
+
+	/* and return without waiting for completion */
+	return 0;
+}
+
+static int bcm2835aux_spi_transfer_one(struct spi_master *master,
+				       struct spi_device *spi,
+				       struct spi_transfer *tfr)
+{
+	struct bcm2835aux_spi *bs = spi_master_get_devdata(master);
+	unsigned long spi_hz, clk_hz, speed;
+	unsigned long spi_used_hz;
+	unsigned long long xfer_time_us;
+
+	/* calculate the registers to handle
+	 *
+	 * note that we use the variable data mode, which
+	 * is not optimal for longer transfers as we waste registers
+	 * resulting (potentially) in more interrupts when transferring
+	 * more than 12 bytes
+	 */
+	bs->cntl[0] = BCM2835_AUX_SPI_CNTL0_ENABLE |
+		      BCM2835_AUX_SPI_CNTL0_VAR_WIDTH |
+		      BCM2835_AUX_SPI_CNTL0_MSBF_OUT;
+	bs->cntl[1] = BCM2835_AUX_SPI_CNTL1_MSBF_IN;
+
+	/* set clock */
+	spi_hz = tfr->speed_hz;
+	clk_hz = clk_get_rate(bs->clk);
+
+	if (spi_hz >= clk_hz / 2) {
+		speed = 0;
+	} else if (spi_hz) {
+		speed = DIV_ROUND_UP(clk_hz, 2 * spi_hz) - 1;
+		if (speed >  BCM2835_AUX_SPI_CNTL0_SPEED_MAX)
+			speed = BCM2835_AUX_SPI_CNTL0_SPEED_MAX;
+	} else { /* the slowest we can go */
+		speed = BCM2835_AUX_SPI_CNTL0_SPEED_MAX;
+	}
+	bs->cntl[0] |= speed << BCM2835_AUX_SPI_CNTL0_SPEED_SHIFT;
+
+	spi_used_hz = clk_hz / (2 * (speed + 1));
+
+	/* handle all the modes */
+	if (spi->mode & SPI_CPOL)
+		bs->cntl[0] |= BCM2835_AUX_SPI_CNTL0_CPOL;
+	if (spi->mode & SPI_CPHA)
+		bs->cntl[0] |= BCM2835_AUX_SPI_CNTL0_CPHA_OUT |
+			       BCM2835_AUX_SPI_CNTL0_CPHA_IN;
+
+	/* set transmit buffers and length */
+	bs->tx_buf = tfr->tx_buf;
+	bs->rx_buf = tfr->rx_buf;
+	bs->tx_len = tfr->len;
+	bs->rx_len = tfr->len;
+	bs->pending = 0;
+
+	/* calculate the estimated time in us the transfer runs
+	 * note that there are are 2 idle clocks after each
+	 * chunk getting transferred - in our case the chunk size
+	 * is 3 bytes, so we approximate this by 9 bits/byte
+	 */
+	xfer_time_us = tfr->len * 9 * 1000000;
+	do_div(xfer_time_us, spi_used_hz);
+
+	/* run in polling mode for short transfers */
+	if (xfer_time_us < BCM2835_AUX_SPI_POLLING_LIMIT_US)
+		return bcm2835aux_spi_transfer_one_poll(master, spi, tfr);
+
+	/* run in interrupt mode for all others */
+	return bcm2835aux_spi_transfer_one_irq(master, spi, tfr);
+}
+
+static void bcm2835aux_spi_handle_err(struct spi_master *master,
+				      struct spi_message *msg)
+{
+	struct bcm2835aux_spi *bs = spi_master_get_devdata(master);
+
+	bcm2835aux_spi_reset_hw(bs);
+}
+
+static int bcm2835aux_spi_probe(struct platform_device *pdev)
+{
+	struct spi_master *master;
+	struct bcm2835aux_spi *bs;
+	struct resource *res;
+	unsigned long clk_hz;
+	int err;
+
+	master = spi_alloc_master(&pdev->dev, sizeof(*bs));
+	if (!master) {
+		dev_err(&pdev->dev, "spi_alloc_master() failed\n");
+		return -ENOMEM;
+	}
+
+	platform_set_drvdata(pdev, master);
+	master->mode_bits = BCM2835_AUX_SPI_MODE_BITS;
+	master->bits_per_word_mask = SPI_BPW_MASK(8);
+	master->num_chipselect = -1;
+	master->transfer_one = bcm2835aux_spi_transfer_one;
+	master->handle_err = bcm2835aux_spi_handle_err;
+	master->dev.of_node = pdev->dev.of_node;
+
+	bs = spi_master_get_devdata(master);
+
+	/* the main area */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	bs->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(bs->regs)) {
+		err = PTR_ERR(bs->regs);
+		goto out_master_put;
+	}
+
+	bs->clk = devm_clk_get(&pdev->dev, NULL);
+	if ((!bs->clk) || (IS_ERR(bs->clk))) {
+		err = PTR_ERR(bs->clk);
+		dev_err(&pdev->dev, "could not get clk: %d\n", err);
+		goto out_master_put;
+	}
+
+	bs->irq = platform_get_irq(pdev, 0);
+	if (bs->irq <= 0) {
+		dev_err(&pdev->dev, "could not get IRQ: %d\n", bs->irq);
+		err = bs->irq ? bs->irq : -ENODEV;
+		goto out_master_put;
+	}
+
+	/* this also enables the HW block */
+	err = clk_prepare_enable(bs->clk);
+	if (err) {
+		dev_err(&pdev->dev, "could not prepare clock: %d\n", err);
+		goto out_master_put;
+	}
+
+	/* just checking if the clock returns a sane value */
+	clk_hz = clk_get_rate(bs->clk);
+	if (!clk_hz) {
+		dev_err(&pdev->dev, "clock returns 0 Hz\n");
+		err = -ENODEV;
+		goto out_clk_disable;
+	}
+
+	/* reset SPI-HW block */
+	bcm2835aux_spi_reset_hw(bs);
+
+	err = devm_request_irq(&pdev->dev, bs->irq,
+			       bcm2835aux_spi_interrupt,
+			       IRQF_SHARED,
+			       dev_name(&pdev->dev), master);
+	if (err) {
+		dev_err(&pdev->dev, "could not request IRQ: %d\n", err);
+		goto out_clk_disable;
+	}
+
+	err = devm_spi_register_master(&pdev->dev, master);
+	if (err) {
+		dev_err(&pdev->dev, "could not register SPI master: %d\n", err);
+		goto out_clk_disable;
+	}
+
+	return 0;
+
+out_clk_disable:
+	clk_disable_unprepare(bs->clk);
+out_master_put:
+	spi_master_put(master);
+	return err;
+}
+
+static int bcm2835aux_spi_remove(struct platform_device *pdev)
+{
+	struct spi_master *master = platform_get_drvdata(pdev);
+	struct bcm2835aux_spi *bs = spi_master_get_devdata(master);
+
+	bcm2835aux_spi_reset_hw(bs);
+
+	/* disable the HW block by releasing the clock */
+	clk_disable_unprepare(bs->clk);
+
+	return 0;
+}
+
+static const struct of_device_id bcm2835aux_spi_match[] = {
+	{ .compatible = "brcm,bcm2835-aux-spi", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, bcm2835aux_spi_match);
+
+static struct platform_driver bcm2835aux_spi_driver = {
+	.driver		= {
+		.name		= "spi-bcm2835aux",
+		.of_match_table	= bcm2835aux_spi_match,
+	},
+	.probe		= bcm2835aux_spi_probe,
+	.remove		= bcm2835aux_spi_remove,
+};
+module_platform_driver(bcm2835aux_spi_driver);
+
+MODULE_DESCRIPTION("SPI controller driver for Broadcom BCM2835 aux");
+MODULE_AUTHOR("Martin Sperl <[e-mail]>");
+MODULE_LICENSE("GPL v2");

drivers/spi/spi-bcm53xx.c

···
 	if (err) {
 		spi_master_put(master);
 		bcma_set_drvdata(core, NULL);
-		goto out;
+		return err;
 	}
 
 	/* Broadcom SoCs (at least with the CC rev 42) use SPI for flash only */
 	spi_new_device(master, &bcm53xx_info);
 
-out:
-	return err;
-}
-
-static void bcm53xxspi_bcma_remove(struct bcma_device *core)
-{
-	struct bcm53xxspi *b53spi = bcma_get_drvdata(core);
-
-	spi_unregister_master(b53spi->master);
+	return 0;
 }
 
 static struct bcma_driver bcm53xxspi_bcma_driver = {
 	.name		= KBUILD_MODNAME,
 	.id_table	= bcm53xxspi_bcma_tbl,
 	.probe		= bcm53xxspi_bcma_probe,
-	.remove		= bcm53xxspi_bcma_remove,
 };
 
 /**************************************************

drivers/spi/spi-bcm63xx.c

···
 #include <linux/err.h>
 #include <linux/pm_runtime.h>
 
-#include <bcm63xx_dev_spi.h>
+/* BCM 6338/6348 SPI core */
+#define SPI_6348_RSET_SIZE		64
+#define SPI_6348_CMD			0x00	/* 16-bits register */
+#define SPI_6348_INT_STATUS		0x02
+#define SPI_6348_INT_MASK_ST		0x03
+#define SPI_6348_INT_MASK		0x04
+#define SPI_6348_ST			0x05
+#define SPI_6348_CLK_CFG		0x06
+#define SPI_6348_FILL_BYTE		0x07
+#define SPI_6348_MSG_TAIL		0x09
+#define SPI_6348_RX_TAIL		0x0b
+#define SPI_6348_MSG_CTL		0x40	/* 8-bits register */
+#define SPI_6348_MSG_CTL_WIDTH		8
+#define SPI_6348_MSG_DATA		0x41
+#define SPI_6348_MSG_DATA_SIZE		0x3f
+#define SPI_6348_RX_DATA		0x80
+#define SPI_6348_RX_DATA_SIZE		0x3f
+
+/* BCM 3368/6358/6262/6368 SPI core */
+#define SPI_6358_RSET_SIZE		1804
+#define SPI_6358_MSG_CTL		0x00	/* 16-bits register */
+#define SPI_6358_MSG_CTL_WIDTH		16
+#define SPI_6358_MSG_DATA		0x02
+#define SPI_6358_MSG_DATA_SIZE		0x21e
+#define SPI_6358_RX_DATA		0x400
+#define SPI_6358_RX_DATA_SIZE		0x220
+#define SPI_6358_CMD			0x700	/* 16-bits register */
+#define SPI_6358_INT_STATUS		0x702
+#define SPI_6358_INT_MASK_ST		0x703
+#define SPI_6358_INT_MASK		0x704
+#define SPI_6358_ST			0x705
+#define SPI_6358_CLK_CFG		0x706
+#define SPI_6358_FILL_BYTE		0x707
+#define SPI_6358_MSG_TAIL		0x709
+#define SPI_6358_RX_TAIL		0x70B
+
+/* Shared SPI definitions */
+
+/* Message configuration */
+#define SPI_FD_RW			0x00
+#define SPI_HD_W			0x01
+#define SPI_HD_R			0x02
+#define SPI_BYTE_CNT_SHIFT		0
+#define SPI_6348_MSG_TYPE_SHIFT		6
+#define SPI_6358_MSG_TYPE_SHIFT		14
+
+/* Command */
+#define SPI_CMD_NOOP			0x00
+#define SPI_CMD_SOFT_RESET		0x01
+#define SPI_CMD_HARD_RESET		0x02
+#define SPI_CMD_START_IMMEDIATE		0x03
+#define SPI_CMD_COMMAND_SHIFT		0
+#define SPI_CMD_COMMAND_MASK		0x000f
+#define SPI_CMD_DEVICE_ID_SHIFT		4
+#define SPI_CMD_PREPEND_BYTE_CNT_SHIFT	8
+#define SPI_CMD_ONE_BYTE_SHIFT		11
+#define SPI_CMD_ONE_WIRE_SHIFT		12
+#define SPI_DEV_ID_0			0
+#define SPI_DEV_ID_1			1
+#define SPI_DEV_ID_2			2
+#define SPI_DEV_ID_3			3
+
+/* Interrupt mask */
+#define SPI_INTR_CMD_DONE		0x01
+#define SPI_INTR_RX_OVERFLOW		0x02
+#define SPI_INTR_TX_UNDERFLOW		0x04
+#define SPI_INTR_TX_OVERFLOW		0x08
+#define SPI_INTR_RX_UNDERFLOW		0x10
+#define SPI_INTR_CLEAR_ALL		0x1f
+
+/* Status */
+#define SPI_RX_EMPTY			0x02
+#define SPI_CMD_BUSY			0x04
+#define SPI_SERIAL_BUSY			0x08
+
+/* Clock configuration */
+#define SPI_CLK_20MHZ			0x00
+#define SPI_CLK_0_391MHZ		0x01
+#define SPI_CLK_0_781MHZ		0x02	/* default */
+#define SPI_CLK_1_563MHZ		0x03
+#define SPI_CLK_3_125MHZ		0x04
+#define SPI_CLK_6_250MHZ		0x05
+#define SPI_CLK_12_50MHZ		0x06
+#define SPI_CLK_MASK			0x07
+#define SPI_SSOFFTIME_MASK		0x38
+#define SPI_SSOFFTIME_SHIFT		3
+#define SPI_BYTE_SWAP			0x80
+
+enum bcm63xx_regs_spi {
+	SPI_CMD,
+	SPI_INT_STATUS,
+	SPI_INT_MASK_ST,
+	SPI_INT_MASK,
+	SPI_ST,
+	SPI_CLK_CFG,
+	SPI_FILL_BYTE,
+	SPI_MSG_TAIL,
+	SPI_RX_TAIL,
+	SPI_MSG_CTL,
+	SPI_MSG_DATA,
+	SPI_RX_DATA,
+	SPI_MSG_TYPE_SHIFT,
+	SPI_MSG_CTL_WIDTH,
+	SPI_MSG_DATA_SIZE,
+};
 
 #define BCM63XX_SPI_MAX_PREPEND		15
+
+#define BCM63XX_SPI_MAX_CS		8
+#define BCM63XX_SPI_BUS_NUM		0
 
 struct bcm63xx_spi {
 	struct completion	done;
···
 	int			irq;
 
 	/* Platform data */
+	const unsigned long	*reg_offsets;
 	unsigned		fifo_size;
 	unsigned int		msg_type_shift;
 	unsigned int		msg_ctl_width;
···
 };
 
 static inline u8 bcm_spi_readb(struct bcm63xx_spi *bs,
-				unsigned int offset)
+			       unsigned int offset)
 {
-	return bcm_readb(bs->regs + bcm63xx_spireg(offset));
+	return readb(bs->regs + bs->reg_offsets[offset]);
 }
 
 static inline u16 bcm_spi_readw(struct bcm63xx_spi *bs,
 				unsigned int offset)
 {
-	return bcm_readw(bs->regs + bcm63xx_spireg(offset));
+#ifdef CONFIG_CPU_BIG_ENDIAN
+	return ioread16be(bs->regs + bs->reg_offsets[offset]);
+#else
+	return readw(bs->regs + bs->reg_offsets[offset]);
+#endif
 }
 
 static inline void bcm_spi_writeb(struct bcm63xx_spi *bs,
 				  u8 value, unsigned int offset)
 {
-	bcm_writeb(value, bs->regs + bcm63xx_spireg(offset));
+	writeb(value, bs->regs + bs->reg_offsets[offset]);
 }
 
 static inline void bcm_spi_writew(struct bcm63xx_spi *bs,
 				  u16 value, unsigned int offset)
 {
-	bcm_writew(value, bs->regs + bcm63xx_spireg(offset));
+#ifdef CONFIG_CPU_BIG_ENDIAN
+	iowrite16be(value, bs->regs + bs->reg_offsets[offset]);
+#else
+	writew(value, bs->regs + bs->reg_offsets[offset]);
+#endif
 }
 
 static const unsigned bcm63xx_spi_freq_table[SPI_CLK_MASK][2] = {
···
 	struct bcm63xx_spi *bs = spi_master_get_devdata(spi->master);
 	u16 msg_ctl;
 	u16 cmd;
-	u8 rx_tail;
 	unsigned int i, timeout = 0, prepend_len = 0, len = 0;
 	struct spi_transfer *t = first;
 	bool do_rx = false;
···
 	return IRQ_HANDLED;
 }
 
+static const unsigned long bcm6348_spi_reg_offsets[] = {
+	[SPI_CMD]		= SPI_6348_CMD,
+	[SPI_INT_STATUS]	= SPI_6348_INT_STATUS,
+	[SPI_INT_MASK_ST]	= SPI_6348_INT_MASK_ST,
+	[SPI_INT_MASK]		= SPI_6348_INT_MASK,
+	[SPI_ST]		= SPI_6348_ST,
+	[SPI_CLK_CFG]		= SPI_6348_CLK_CFG,
+	[SPI_FILL_BYTE]		= SPI_6348_FILL_BYTE,
+	[SPI_MSG_TAIL]		= SPI_6348_MSG_TAIL,
+	[SPI_RX_TAIL]		= SPI_6348_RX_TAIL,
+	[SPI_MSG_CTL]		= SPI_6348_MSG_CTL,
+	[SPI_MSG_DATA]		= SPI_6348_MSG_DATA,
+	[SPI_RX_DATA]		= SPI_6348_RX_DATA,
+	[SPI_MSG_TYPE_SHIFT]	= SPI_6348_MSG_TYPE_SHIFT,
+	[SPI_MSG_CTL_WIDTH]	= SPI_6348_MSG_CTL_WIDTH,
+	[SPI_MSG_DATA_SIZE]	= SPI_6348_MSG_DATA_SIZE,
+};
+
+static const unsigned long bcm6358_spi_reg_offsets[] = {
+	[SPI_CMD]		= SPI_6358_CMD,
+	[SPI_INT_STATUS]	= SPI_6358_INT_STATUS,
+	[SPI_INT_MASK_ST]	= SPI_6358_INT_MASK_ST,
+	[SPI_INT_MASK]		= SPI_6358_INT_MASK,
+	[SPI_ST]		= SPI_6358_ST,
+	[SPI_CLK_CFG]		= SPI_6358_CLK_CFG,
+	[SPI_FILL_BYTE]		= SPI_6358_FILL_BYTE,
+	[SPI_MSG_TAIL]		= SPI_6358_MSG_TAIL,
+	[SPI_RX_TAIL]		= SPI_6358_RX_TAIL,
+	[SPI_MSG_CTL]		= SPI_6358_MSG_CTL,
+	[SPI_MSG_DATA]		= SPI_6358_MSG_DATA,
+	[SPI_RX_DATA]		= SPI_6358_RX_DATA,
+	[SPI_MSG_TYPE_SHIFT]	= SPI_6358_MSG_TYPE_SHIFT,
+	[SPI_MSG_CTL_WIDTH]	= SPI_6358_MSG_CTL_WIDTH,
+	[SPI_MSG_DATA_SIZE]	= SPI_6358_MSG_DATA_SIZE,
+};
+
+static const struct platform_device_id bcm63xx_spi_dev_match[] = {
+	{
+		.name = "bcm6348-spi",
+		.driver_data = (unsigned long)bcm6348_spi_reg_offsets,
+	},
+	{
+		.name = "bcm6358-spi",
+		.driver_data = (unsigned long)bcm6358_spi_reg_offsets,
+	},
+	{
+	},
+};
 
 static int bcm63xx_spi_probe(struct platform_device *pdev)
 {
 	struct resource *r;
+	const unsigned long *bcm63xx_spireg;
 	struct device *dev = &pdev->dev;
-	struct bcm63xx_spi_pdata *pdata = dev_get_platdata(&pdev->dev);
 	int irq;
 	struct spi_master *master;
 	struct clk *clk;
 	struct bcm63xx_spi *bs;
 	int ret;
+
+	if (!pdev->id_entry->driver_data)
+		return -EINVAL;
+
+	bcm63xx_spireg = (const unsigned long *)pdev->id_entry->driver_data;
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
···
 
 	bs->irq = irq;
 	bs->clk = clk;
-	bs->fifo_size = pdata->fifo_size;
+	bs->reg_offsets = bcm63xx_spireg;
+	bs->fifo_size = bs->reg_offsets[SPI_MSG_DATA_SIZE];
 
 	ret = devm_request_irq(&pdev->dev, irq, bcm63xx_spi_interrupt, 0,
 							pdev->name, master);
···
 		goto out_err;
 	}
 
-	master->bus_num = pdata->bus_num;
-	master->num_chipselect = pdata->num_chipselect;
+	master->bus_num = BCM63XX_SPI_BUS_NUM;
+	master->num_chipselect = BCM63XX_SPI_MAX_CS;
 	master->transfer_one_message = bcm63xx_spi_transfer_one;
 	master->mode_bits = MODEBITS;
 	master->bits_per_word_mask = SPI_BPW_MASK(8);
 	master->auto_runtime_pm = true;
-	bs->msg_type_shift = pdata->msg_type_shift;
-	bs->msg_ctl_width = pdata->msg_ctl_width;
-	bs->tx_io = (u8 *)(bs->regs + bcm63xx_spireg(SPI_MSG_DATA));
-	bs->rx_io = (const u8 *)(bs->regs + bcm63xx_spireg(SPI_RX_DATA));
-
-	switch (bs->msg_ctl_width) {
-	case 8:
-	case 16:
-		break;
-	default:
-		dev_err(dev, "unsupported MSG_CTL width: %d\n",
-			 bs->msg_ctl_width);
-		goto out_err;
-	}
+	bs->msg_type_shift = bs->reg_offsets[SPI_MSG_TYPE_SHIFT];
+	bs->msg_ctl_width = bs->reg_offsets[SPI_MSG_CTL_WIDTH];
+	bs->tx_io = (u8 *)(bs->regs + bs->reg_offsets[SPI_MSG_DATA]);
+	bs->rx_io = (const u8 *)(bs->regs + bs->reg_offsets[SPI_RX_DATA]);
 
 	/* Initialize hardware */
 	ret = clk_prepare_enable(bs->clk);
···
 		.name	= "bcm63xx-spi",
 		.pm	= &bcm63xx_spi_pm_ops,
 	},
+	.id_table	= bcm63xx_spi_dev_match,
 	.probe		= bcm63xx_spi_probe,
 	.remove		= bcm63xx_spi_remove,
 };

drivers/spi/spi-bfin-sport.c

···
 	transfer = drv_data->cur_transfer;
 	chip = drv_data->cur_chip;
 
-	if (transfer->speed_hz)
-		transfer_speed = bfin_sport_hz_to_spi_baud(transfer->speed_hz);
-	else
-		transfer_speed = chip->baud;
+	transfer_speed = bfin_sport_hz_to_spi_baud(transfer->speed_hz);
 	bfin_write(&drv_data->regs->tclkdiv, transfer_speed);
 	SSYNC();
 

drivers/spi/spi-bfin5xx.c

···
 	message->state = RUNNING_STATE;
 	dma_config = 0;
 
-	/* Speed setup (surely valid because already checked) */
-	if (transfer->speed_hz)
-		bfin_write(&drv_data->regs->baud, hz_to_spi_baud(transfer->speed_hz));
-	else
-		bfin_write(&drv_data->regs->baud, chip->baud);
+	bfin_write(&drv_data->regs->baud, hz_to_spi_baud(transfer->speed_hz));
 
 	bfin_write(&drv_data->regs->stat, BIT_STAT_CLR);
 	bfin_spi_cs_active(drv_data, chip);

drivers/spi/spi-bitbang.c

···
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
 
+#define SPI_BITBANG_CS_DELAY	100
+
 
 /*----------------------------------------------------------------------*/
 
···
 {
 	struct spi_bitbang_cs	*cs = spi->controller_state;
 	struct spi_bitbang	*bitbang;
-	unsigned long		flags;
 
 	bitbang = spi_master_get_devdata(spi->master);
 
···
 	 */
 
 	/* deselect chip (low or high) */
-	spin_lock_irqsave(&bitbang->lock, flags);
+	mutex_lock(&bitbang->lock);
 	if (!bitbang->busy) {
 		bitbang->chipselect(spi, BITBANG_CS_INACTIVE);
 		ndelay(cs->nsecs);
 	}
-	spin_unlock_irqrestore(&bitbang->lock, flags);
+	mutex_unlock(&bitbang->lock);
 
 	return 0;
 }
···
 static int spi_bitbang_prepare_hardware(struct spi_master *spi)
 {
 	struct spi_bitbang	*bitbang;
-	unsigned long		flags;
 
 	bitbang = spi_master_get_devdata(spi);
 
-	spin_lock_irqsave(&bitbang->lock, flags);
+	mutex_lock(&bitbang->lock);
 	bitbang->busy = 1;
-	spin_unlock_irqrestore(&bitbang->lock, flags);
+	mutex_unlock(&bitbang->lock);
 
 	return 0;
 }
 
 static int spi_bitbang_transfer_one(struct spi_master *master,
-				    struct spi_message *m)
+				    struct spi_device *spi,
+				    struct spi_transfer *transfer)
 {
-	struct spi_bitbang	*bitbang;
-	unsigned		nsecs;
-	struct spi_transfer	*t = NULL;
-	unsigned		cs_change;
-	int			status;
-	int			do_setup = -1;
-	struct spi_device	*spi = m->spi;
+	struct spi_bitbang *bitbang = spi_master_get_devdata(master);
+	int status = 0;
 
-	bitbang = spi_master_get_devdata(master);
+	if (bitbang->setup_transfer) {
+		status = bitbang->setup_transfer(spi, transfer);
+		if (status < 0)
+			goto out;
+	}
 
-	/* FIXME this is made-up ... the correct value is known to
-	 * word-at-a-time bitbang code, and presumably chipselect()
-	 * should enforce these requirements too?
-	 */
-	nsecs = 100;
+	if (transfer->len)
+		status = bitbang->txrx_bufs(spi, transfer);
 
-	cs_change = 1;
-	status = 0;
-
-	list_for_each_entry(t, &m->transfers, transfer_list) {
-
-		/* override speed or wordsize? */
-		if (t->speed_hz || t->bits_per_word)
-			do_setup = 1;
-
-		/* init (-1) or override (1) transfer params */
-		if (do_setup != 0) {
-			if (bitbang->setup_transfer) {
-				status = bitbang->setup_transfer(spi, t);
-				if (status < 0)
-					break;
-			}
-			if (do_setup == -1)
-				do_setup = 0;
-		}
-
-		/* set up default clock polarity, and activate chip;
-		 * this implicitly updates clock and spi modes as
-		 * previously recorded for this device via setup().
-		 * (and also deselects any other chip that might be
-		 * selected ...)
-		 */
-		if (cs_change) {
-			bitbang->chipselect(spi, BITBANG_CS_ACTIVE);
-			ndelay(nsecs);
-		}
-		cs_change = t->cs_change;
-		if (!t->tx_buf && !t->rx_buf && t->len) {
-			status = -EINVAL;
-			break;
-		}
-
-		/* transfer data.  the lower level code handles any
-		 * new dma mappings it needs. our caller always gave
-		 * us dma-safe buffers.
-		 */
-		if (t->len) {
-			/* REVISIT dma API still needs a designated
-			 * DMA_ADDR_INVALID; ~0 might be better.
-			 */
-			if (!m->is_dma_mapped)
-				t->rx_dma = t->tx_dma = 0;
-			status = bitbang->txrx_bufs(spi, t);
-		}
-		if (status > 0)
-			m->actual_length += status;
-		if (status != t->len) {
-			/* always report some kind of error */
-			if (status >= 0)
-				status = -EREMOTEIO;
-			break;
-		}
+	if (status == transfer->len)
 		status = 0;
+	else if (status >= 0)
+		status = -EREMOTEIO;
 
-		/* protocol tweaks before next transfer */
-		if (t->delay_usecs)
-			udelay(t->delay_usecs);
-
-		if (cs_change &&
-		    !list_is_last(&t->transfer_list, &m->transfers)) {
-			/* sometimes a short mid-message deselect of the chip
-			 * may be needed to terminate a mode or command
-			 */
-			ndelay(nsecs);
-			bitbang->chipselect(spi, BITBANG_CS_INACTIVE);
-			ndelay(nsecs);
-		}
-	}
-
-	m->status = status;
-
-	/* normally deactivate chipselect ... unless no error and
-	 * cs_change has hinted that the next message will probably
-	 * be for this chip too.
-	 */
-	if (!(status == 0 && cs_change)) {
-		ndelay(nsecs);
-		bitbang->chipselect(spi, BITBANG_CS_INACTIVE);
-		ndelay(nsecs);
-	}
-
-	spi_finalize_current_message(master);
+out:
+	spi_finalize_current_transfer(master);
 
 	return status;
 }
···
 static int spi_bitbang_unprepare_hardware(struct spi_master *spi)
 {
 	struct spi_bitbang	*bitbang;
-	unsigned long		flags;
 
 	bitbang = spi_master_get_devdata(spi);
 
-	spin_lock_irqsave(&bitbang->lock, flags);
+	mutex_lock(&bitbang->lock);
 	bitbang->busy = 0;
-	spin_unlock_irqrestore(&bitbang->lock, flags);
+	mutex_unlock(&bitbang->lock);
 
 	return 0;
+}
+
+static void spi_bitbang_set_cs(struct spi_device *spi, bool enable)
+{
+	struct spi_bitbang *bitbang = spi_master_get_devdata(spi->master);
+
+	/* SPI core provides CS high / low, but bitbang driver
+	 * expects CS active
+	 * spi device driver takes care of handling SPI_CS_HIGH
+	 */
+	enable = (!!(spi->mode & SPI_CS_HIGH) == enable);
+
+	ndelay(SPI_BITBANG_CS_DELAY);
+	bitbang->chipselect(spi, enable ? BITBANG_CS_ACTIVE :
+			    BITBANG_CS_INACTIVE);
+	ndelay(SPI_BITBANG_CS_DELAY);
 }
 
 /*----------------------------------------------------------------------*/
···
 	if (!master || !bitbang->chipselect)
 		return -EINVAL;
 
-	spin_lock_init(&bitbang->lock);
+	mutex_init(&bitbang->lock);
 
 	if (!master->mode_bits)
 		master->mode_bits = SPI_CPOL | SPI_CPHA | bitbang->flags;
···
 
 	master->prepare_transfer_hardware = spi_bitbang_prepare_hardware;
 	master->unprepare_transfer_hardware = spi_bitbang_unprepare_hardware;
-	master->transfer_one_message = spi_bitbang_transfer_one;
+	master->transfer_one = spi_bitbang_transfer_one;
+	master->set_cs = spi_bitbang_set_cs;
 
 	if (!bitbang->txrx_bufs) {
 		bitbang->use_dma = 0;

drivers/spi/spi-coldfire-qspi.c

···
 	master->auto_runtime_pm = true;
 
 	platform_set_drvdata(pdev, master);
+	pm_runtime_enable(&pdev->dev);
 
 	status = devm_spi_register_master(&pdev->dev, master);
 	if (status) {
 		dev_dbg(&pdev->dev, "spi_register_master failed\n");
 		goto fail2;
 	}
-	pm_runtime_enable(&pdev->dev);
 
 	dev_info(&pdev->dev, "Coldfire QSPI bus driver\n");
 
 	return 0;
 
 fail2:
+	pm_runtime_disable(&pdev->dev);
 	mcfqspi_cs_teardown(mcfqspi);
 fail1:
 	clk_disable(mcfqspi->clk);

drivers/spi/spi-davinci.c

···
 	struct davinci_spi_config *spicfg = spi->controller_data;
 	u8 chip_sel = spi->chip_select;
 	u16 spidat1 = CS_DEFAULT;
-	bool gpio_chipsel = false;
-	int gpio;
 
 	dspi = spi_master_get_devdata(spi->master);
 	pdata = &dspi->pdata;
-
-	if (spi->cs_gpio >= 0) {
-		/* SPI core parse and update master->cs_gpio */
-		gpio_chipsel = true;
-		gpio = spi->cs_gpio;
-	}
 
 	/* program delay transfers if tx_delay is non zero */
 	if (spicfg->wdelay)
···
 	 * Board specific chip select logic decides the polarity and cs
 	 * line for the controller
 	 */
-	if (gpio_chipsel) {
+	if (spi->cs_gpio >= 0) {
 		if (value == BITBANG_CS_ACTIVE)
-			gpio_set_value(gpio, spi->mode & SPI_CS_HIGH);
+			gpio_set_value(spi->cs_gpio, spi->mode & SPI_CS_HIGH);
 		else
-			gpio_set_value(gpio, !(spi->mode & SPI_CS_HIGH));
+			gpio_set_value(spi->cs_gpio,
+				!(spi->mode & SPI_CS_HIGH));
 	} else {
 		if (value == BITBANG_CS_ACTIVE) {
 			spidat1 |= SPIDAT1_CSHOLD_MASK;

drivers/spi/spi-dw-mmio.c

···
 #include <linux/of.h>
 #include <linux/of_gpio.h>
 #include <linux/of_platform.h>
+#include <linux/property.h>
 
 #include "spi-dw.h"
 
···
 
 	dws->max_freq = clk_get_rate(dwsmmio->clk);
 
-	of_property_read_u32(pdev->dev.of_node, "reg-io-width",
-			     &dws->reg_io_width);
+	device_property_read_u32(&pdev->dev, "reg-io-width", &dws->reg_io_width);
 
 	num_cs = 4;
 
-	if (pdev->dev.of_node)
-		of_property_read_u32(pdev->dev.of_node, "num-cs", &num_cs);
+	device_property_read_u32(&pdev->dev, "num-cs", &num_cs);
 
 	dws->num_cs = num_cs;
 

drivers/spi/spi-dw-pci.c

···
 
 #define DRIVER_NAME "dw_spi_pci"
 
-struct dw_spi_pci {
-	struct pci_dev	*pdev;
-	struct dw_spi	dws;
-};
-
 struct spi_pci_desc {
 	int	(*setup)(struct dw_spi *);
 	u16	num_cs;
···
 
 static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	struct dw_spi_pci *dwpci;
 	struct dw_spi *dws;
 	struct spi_pci_desc *desc = (struct spi_pci_desc *)ent->driver_data;
 	int pci_bar = 0;
···
 	if (ret)
 		return ret;
 
-	dwpci = devm_kzalloc(&pdev->dev, sizeof(struct dw_spi_pci),
-			GFP_KERNEL);
-	if (!dwpci)
+	dws = devm_kzalloc(&pdev->dev, sizeof(*dws), GFP_KERNEL);
+	if (!dws)
 		return -ENOMEM;
-
-	dwpci->pdev = pdev;
-	dws = &dwpci->dws;
 
 	/* Get basic io resource and map it */
 	dws->paddr = pci_resource_start(pdev, pci_bar);
···
 		return ret;
 
 	dws->regs = pcim_iomap_table(pdev)[pci_bar];
-
 	dws->irq = pdev->irq;
 
 	/*
···
 		return ret;
 
 	/* PCI hook and SPI hook use the same drv data */
-	pci_set_drvdata(pdev, dwpci);
+	pci_set_drvdata(pdev, dws);
 
 	dev_info(&pdev->dev, "found PCI SPI controller(ID: %04x:%04x)\n",
 		pdev->vendor, pdev->device);
···
 
 static void spi_pci_remove(struct pci_dev *pdev)
 {
-	struct dw_spi_pci *dwpci = pci_get_drvdata(pdev);
+	struct dw_spi *dws = pci_get_drvdata(pdev);
 
-	dw_spi_remove_host(&dwpci->dws);
+	dw_spi_remove_host(dws);
 }
 
 #ifdef CONFIG_PM_SLEEP
 static int spi_suspend(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
-	struct dw_spi_pci *dwpci = pci_get_drvdata(pdev);
+	struct dw_spi *dws = pci_get_drvdata(pdev);
 
-	return dw_spi_suspend_host(&dwpci->dws);
+	return dw_spi_suspend_host(dws);
 }
 
 static int spi_resume(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
-	struct dw_spi_pci *dwpci = pci_get_drvdata(pdev);
+	struct dw_spi *dws = pci_get_drvdata(pdev);
 
-	return dw_spi_resume_host(&dwpci->dws);
+	return dw_spi_resume_host(dws);
 }
 #endif
 

drivers/spi/spi-dw.c

···
 
 /* Slave spi_dev related */
 struct chip_data {
-	u16 cr0;
 	u8 cs;			/* chip select pin */
-	u8 n_bytes;		/* current is a 1/2/4 byte op */
 	u8 tmode;		/* TR/TO/RO/EEPROM */
 	u8 type;		/* SPI/SSP/MicroWire */
 
 	u8 poll_mode;		/* 1 means use poll mode */
 
-	u32 dma_width;
-	u32 rx_threshold;
-	u32 tx_threshold;
 	u8 enable_dma;
-	u8 bits_per_word;
 	u16 clk_div;		/* baud rate divider */
 	u32 speed_hz;		/* baud rate */
 	void (*cs_control)(u32 command);
···
 	struct chip_data *chip = spi_get_ctldata(spi);
 	u8 imask = 0;
 	u16 txlevel = 0;
-	u16 clk_div = 0;
-	u32 speed = 0;
-	u32 cr0 = 0;
+	u16 clk_div;
+	u32 cr0;
 	int ret;
 
 	dws->dma_mapped = 0;
-	dws->n_bytes = chip->n_bytes;
-	dws->dma_width = chip->dma_width;
 
 	dws->tx = (void *)transfer->tx_buf;
 	dws->tx_end = dws->tx + transfer->len;
···
 
 	spi_enable_chip(dws, 0);
 
-	cr0 = chip->cr0;
-
 	/* Handle per transfer options for bpw and speed */
-	if (transfer->speed_hz) {
-		speed = chip->speed_hz;
+	if (transfer->speed_hz != chip->speed_hz) {
+		/* clk_div doesn't support odd number */
+		clk_div = (dws->max_freq / transfer->speed_hz + 1) & 0xfffe;
 
-		if ((transfer->speed_hz != speed) || !chip->clk_div) {
-			speed = transfer->speed_hz;
+		chip->speed_hz = transfer->speed_hz;
+		chip->clk_div = clk_div;
 
-			/* clk_div doesn't support odd number */
-			clk_div = (dws->max_freq / speed + 1) & 0xfffe;
-
-			chip->speed_hz = speed;
-			chip->clk_div = clk_div;
-
-			spi_set_clk(dws, chip->clk_div);
-		}
+		spi_set_clk(dws, chip->clk_div);
 	}
-	if (transfer->bits_per_word) {
-		if (transfer->bits_per_word == 8) {
-			dws->n_bytes = 1;
-			dws->dma_width = 1;
-		} else if (transfer->bits_per_word == 16) {
-			dws->n_bytes = 2;
-			dws->dma_width = 2;
-		}
-		cr0 = (transfer->bits_per_word - 1)
-			| (chip->type << SPI_FRF_OFFSET)
-			| (spi->mode << SPI_MODE_OFFSET)
-			| (chip->tmode << SPI_TMOD_OFFSET);
+	if (transfer->bits_per_word == 8) {
+		dws->n_bytes = 1;
+		dws->dma_width = 1;
+	} else if (transfer->bits_per_word == 16) {
+		dws->n_bytes = 2;
+		dws->dma_width = 2;
+	} else {
+		return -EINVAL;
 	}
+	/* Default SPI mode is SCPOL = 0, SCPH = 0 */
+	cr0 = (transfer->bits_per_word - 1)
+		| (chip->type << SPI_FRF_OFFSET)
+		| (spi->mode << SPI_MODE_OFFSET)
+		| (chip->tmode << SPI_TMOD_OFFSET);
 
 	/*
 	 * Adjust transfer mode if necessary. Requires platform dependent
···
 
 		chip->poll_mode = chip_info->poll_mode;
 		chip->type = chip_info->type;
-
-		chip->rx_threshold = 0;
-		chip->tx_threshold = 0;
-	}
-
-	if (spi->bits_per_word == 8) {
-		chip->n_bytes = 1;
-		chip->dma_width = 1;
-	} else if (spi->bits_per_word == 16) {
-		chip->n_bytes = 2;
-		chip->dma_width = 2;
-	}
-	chip->bits_per_word = spi->bits_per_word;
-
-	if (!spi->max_speed_hz) {
-		dev_err(&spi->dev, "No max speed HZ parameter\n");
-		return -EINVAL;
 	}
 
 	chip->tmode = 0; /* Tx & Rx */
-	/* Default SPI mode is SCPOL = 0, SCPH = 0 */
-	chip->cr0 = (chip->bits_per_word - 1)
-			| (chip->type << SPI_FRF_OFFSET)
-			| (spi->mode  << SPI_MODE_OFFSET)
-			| (chip->tmode << SPI_TMOD_OFFSET);
-
-	if (spi->mode & SPI_LOOP)
-		chip->cr0 |= 1 << SPI_SRL_OFFSET;
 
 	if (gpio_is_valid(spi->cs_gpio)) {
 		ret = gpio_direction_output(spi->cs_gpio,
···
 	dws->master = master;
 	dws->type = SSI_MOTO_SPI;
 	dws->dma_inited = 0;
-	dws->dma_addr = (dma_addr_t)(dws->paddr + 0x60);
+	dws->dma_addr = (dma_addr_t)(dws->paddr + DW_SPI_DR);
 	snprintf(dws->name, sizeof(dws->name), "dw_spi%d", dws->bus_num);
 
-	ret = devm_request_irq(dev, dws->irq, dw_spi_irq, IRQF_SHARED,
-			dws->name, master);
+	ret = request_irq(dws->irq, dw_spi_irq, IRQF_SHARED, dws->name, master);
 	if (ret < 0) {
-		dev_err(&master->dev, "can not get IRQ\n");
+		dev_err(dev, "can not get IRQ\n");
 		goto err_free_master;
 	}
 
···
 	if (dws->dma_ops && dws->dma_ops->dma_exit)
 		dws->dma_ops->dma_exit(dws);
 	spi_enable_chip(dws, 0);
+	free_irq(dws->irq, master);
 err_free_master:
 	spi_master_put(master);
 	return ret;
···
 
 void dw_spi_remove_host(struct dw_spi *dws)
 {
-	if (!dws)
-		return;
 	dw_spi_debugfs_remove(dws);
 
 	if (dws->dma_ops && dws->dma_ops->dma_exit)
 		dws->dma_ops->dma_exit(dws);
-	spi_enable_chip(dws, 0);
-	/* Disable clk */
-	spi_set_clk(dws, 0);
+
+	spi_shutdown_chip(dws);
+
+	free_irq(dws->irq, dws->master);
 }
 EXPORT_SYMBOL_GPL(dw_spi_remove_host);
 
 int dw_spi_suspend_host(struct dw_spi *dws)
 {
-	int ret = 0;
+	int ret;
 
 	ret = spi_master_suspend(dws->master);
 	if (ret)
 		return ret;
-	spi_enable_chip(dws, 0);
-	spi_set_clk(dws, 0);
-	return ret;
+
+	spi_shutdown_chip(dws);
+	return 0;
 }
 EXPORT_SYMBOL_GPL(dw_spi_suspend_host);
 

drivers/spi/spi-dw.h

···
 	spi_enable_chip(dws, 1);
 }
 
+static inline void spi_shutdown_chip(struct dw_spi *dws)
+{
+	spi_enable_chip(dws, 0);
+	spi_set_clk(dws, 0);
+}
+
 /*
  * Each SPI slave device to work with dw_api controller should
  * has such a structure claiming its working mode (poll or PIO/DMA),

drivers/spi/spi-fsl-dspi.c

···
 				SPI_MCR_CLR_TXF | SPI_MCR_CLR_RXF);
 		regmap_write(dspi->regmap, SPI_CTAR(dspi->cs),
 				dspi->cur_chip->ctar_val);
-		if (transfer->speed_hz)
-			regmap_write(dspi->regmap, SPI_CTAR(dspi->cs),
-					dspi->cur_chip->ctar_val);
 
 		trans_mode = dspi->devtype_data->trans_mode;
 		switch (trans_mode) {

drivers/spi/spi-imx.c

···
 
 	if (config->mode & SPI_CPHA)
 		cfg |= MX51_ECSPI_CONFIG_SCLKPHA(config->cs);
+	else
+		cfg &= ~MX51_ECSPI_CONFIG_SCLKPHA(config->cs);
 
 	if (config->mode & SPI_CPOL) {
 		cfg |= MX51_ECSPI_CONFIG_SCLKPOL(config->cs);
 		cfg |= MX51_ECSPI_CONFIG_SCLKCTL(config->cs);
+	} else {
+		cfg &= ~MX51_ECSPI_CONFIG_SCLKPOL(config->cs);
+		cfg &= ~MX51_ECSPI_CONFIG_SCLKCTL(config->cs);
 	}
 	if (config->mode & SPI_CS_HIGH)
 		cfg |= MX51_ECSPI_CONFIG_SSBPOL(config->cs);
+	else
+		cfg &= ~MX51_ECSPI_CONFIG_SSBPOL(config->cs);
 
 	writel(ctrl, spi_imx->base + MX51_ECSPI_CTRL);
 	writel(cfg, spi_imx->base + MX51_ECSPI_CONFIG);

drivers/spi/spi-mpc512x-psc.c

···
 	cs_change = 1;
 	status = 0;
 	list_for_each_entry(t, &m->transfers, transfer_list) {
-		if (t->bits_per_word || t->speed_hz) {
-			status = mpc512x_psc_spi_transfer_setup(spi, t);
-			if (status < 0)
-				break;
-		}
+		status = mpc512x_psc_spi_transfer_setup(spi, t);
+		if (status < 0)
+			break;
 
 		if (cs_change)
 			mpc512x_psc_spi_activate_cs(spi);

drivers/spi/spi-mt65xx.c

···
 #include <linux/ioport.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_gpio.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/spi-mt65xx.h>
 #include <linux/pm_runtime.h>
···
 struct mtk_spi {
 	void __iomem *base;
 	u32 state;
-	u32 pad_sel;
+	int pad_num;
+	u32 *pad_sel;
 	struct clk *parent_clk, *sel_clk, *spi_clk;
 	struct spi_transfer *cur_transfer;
 	u32 xfer_len;
···
 	writel(reg_val, mdata->base + SPI_CMD_REG);
 }
 
-static void mtk_spi_config(struct mtk_spi *mdata,
-			   struct mtk_chip_config *chip_config)
+static int mtk_spi_prepare_message(struct spi_master *master,
+				   struct spi_message *msg)
 {
+	u16 cpha, cpol;
 	u32 reg_val;
+	struct spi_device *spi = msg->spi;
+	struct mtk_chip_config *chip_config = spi->controller_data;
+	struct mtk_spi *mdata = spi_master_get_devdata(master);
+
+	cpha = spi->mode & SPI_CPHA ? 1 : 0;
+	cpol = spi->mode & SPI_CPOL ? 1 : 0;
+
+	reg_val = readl(mdata->base + SPI_CMD_REG);
+	if (cpha)
+		reg_val |= SPI_CMD_CPHA;
+	else
+		reg_val &= ~SPI_CMD_CPHA;
+	if (cpol)
+		reg_val |= SPI_CMD_CPOL;
+	else
+		reg_val &= ~SPI_CMD_CPOL;
+	writel(reg_val, mdata->base + SPI_CMD_REG);
 
 	reg_val = readl(mdata->base + SPI_CMD_REG);
 
···
 
 	/* pad select */
 	if (mdata->dev_comp->need_pad_sel)
-		writel(mdata->pad_sel, mdata->base + SPI_PAD_SEL_REG);
-}
-
-static int mtk_spi_prepare_message(struct spi_master *master,
-				   struct spi_message *msg)
-{
-	u32 reg_val;
-	u8 cpha, cpol;
-	struct mtk_chip_config *chip_config;
-	struct spi_device *spi = msg->spi;
-	struct mtk_spi *mdata = spi_master_get_devdata(master);
-
-	cpha = spi->mode & SPI_CPHA ? 1 : 0;
-	cpol = spi->mode & SPI_CPOL ? 1 : 0;
-
-	reg_val = readl(mdata->base + SPI_CMD_REG);
-	if (cpha)
-		reg_val |= SPI_CMD_CPHA;
-	else
-		reg_val &= ~SPI_CMD_CPHA;
-	if (cpol)
-		reg_val |= SPI_CMD_CPOL;
-	else
-		reg_val &= ~SPI_CMD_CPOL;
-	writel(reg_val, mdata->base + SPI_CMD_REG);
-
-	chip_config = spi->controller_data;
-	if (!chip_config) {
-		chip_config = (void *)&mtk_default_chip_info;
-		spi->controller_data = chip_config;
-	}
-	mtk_spi_config(mdata, chip_config);
+		writel(mdata->pad_sel[spi->chip_select],
+		       mdata->base + SPI_PAD_SEL_REG);
 
 	return 0;
 }
···
 	return xfer->len > MTK_SPI_MAX_FIFO_SIZE;
 }
 
+static int mtk_spi_setup(struct spi_device *spi)
+{
+	struct mtk_spi *mdata = spi_master_get_devdata(spi->master);
+
+	if (!spi->controller_data)
+		spi->controller_data = (void *)&mtk_default_chip_info;
+
+	if (mdata->dev_comp->need_pad_sel)
+		gpio_direction_output(spi->cs_gpio, !(spi->mode & SPI_CS_HIGH));
+
+	return 0;
+}
+
 static irqreturn_t mtk_spi_interrupt(int irq, void *dev_id)
 {
 	u32 cmd, reg_val, cnt;
···
 	struct mtk_spi *mdata;
 	const struct of_device_id *of_id;
 	struct resource *res;
-	int irq, ret;
+	int i, irq, ret;
 
 	master = spi_alloc_master(&pdev->dev, sizeof(*mdata));
 	if (!master) {
···
 	master->prepare_message = mtk_spi_prepare_message;
 	master->transfer_one = mtk_spi_transfer_one;
 	master->can_dma = mtk_spi_can_dma;
+	master->setup = mtk_spi_setup;
 
 	of_id = of_match_node(mtk_spi_of_match, pdev->dev.of_node);
 	if (!of_id) {
···
 		master->flags = SPI_MASTER_MUST_TX;
 
 	if (mdata->dev_comp->need_pad_sel) {
-		ret = of_property_read_u32(pdev->dev.of_node,
-					   "mediatek,pad-select",
-					   &mdata->pad_sel);
-		if (ret) {
-			dev_err(&pdev->dev, "failed to read pad select: %d\n",
-				ret);
+		mdata->pad_num = of_property_count_u32_elems(
+			pdev->dev.of_node,
+			"mediatek,pad-select");
+		if (mdata->pad_num < 0) {
+			dev_err(&pdev->dev,
+				"No 'mediatek,pad-select' property\n");
+			ret = -EINVAL;
 			goto err_put_master;
 		}
 
-		if (mdata->pad_sel > MT8173_SPI_MAX_PAD_SEL) {
-			dev_err(&pdev->dev, "wrong pad-select: %u\n",
-				mdata->pad_sel);
-			ret = -EINVAL;
+		mdata->pad_sel = devm_kmalloc_array(&pdev->dev, mdata->pad_num,
+						    sizeof(u32), GFP_KERNEL);
+		if (!mdata->pad_sel) {
+			ret = -ENOMEM;
 			goto err_put_master;
+		}
+
+		for (i = 0; i < mdata->pad_num; i++) {
+			of_property_read_u32_index(pdev->dev.of_node,
+						   "mediatek,pad-select",
+						   i, &mdata->pad_sel[i]);
+			if (mdata->pad_sel[i] > MT8173_SPI_MAX_PAD_SEL) {
+				dev_err(&pdev->dev, "wrong pad-sel[%d]: %u\n",
+					i, mdata->pad_sel[i]);
+				ret = -EINVAL;
+				goto err_put_master;
+			}
 		}
 	}
 
···
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register master (%d)\n", ret);
 		goto err_put_master;
+	}
+
+	if (mdata->dev_comp->need_pad_sel) {
+		if (mdata->pad_num != master->num_chipselect) {
+			dev_err(&pdev->dev,
+				"pad_num does not match num_chipselect(%d != %d)\n",
+				mdata->pad_num, master->num_chipselect);
+			ret = -EINVAL;
+			goto err_put_master;
+		}
+
+		for (i = 0; i < master->num_chipselect; i++) {
+			ret = devm_gpio_request(&pdev->dev, master->cs_gpios[i],
+						dev_name(&pdev->dev));
+			if (ret) {
+				dev_err(&pdev->dev,
+					"can't get CS GPIO %i\n", i);
+				goto err_put_master;
+			}
+		}
 	}
 
 	return 0;

drivers/spi/spi-oc-tiny.c

···
 	struct tiny_spi *hw = platform_get_drvdata(pdev);
 	struct device_node *np = pdev->dev.of_node;
 	unsigned int i;
-	const __be32 *val;
-	int len;
+	u32 val;
 
 	if (!np)
 		return 0;
···
 			return -ENODEV;
 	}
 	hw->bitbang.master->dev.of_node = pdev->dev.of_node;
-	val = of_get_property(pdev->dev.of_node,
-			      "clock-frequency", &len);
-	if (val && len >= sizeof(__be32))
-		hw->freq = be32_to_cpup(val);
-	val = of_get_property(pdev->dev.of_node, "baud-width", &len);
-	if (val && len >= sizeof(__be32))
-		hw->baudwidth = be32_to_cpup(val);
+	if (!of_property_read_u32(np, "clock-frequency", &val))
+		hw->freq = val;
+	if (!of_property_read_u32(np, "baud-width", &val))
+		hw->baudwidth = val;
 	return 0;
 }
 #else /* !CONFIG_OF */

drivers/spi/spi-octeon.c

···
 	cpha = mode & SPI_CPHA;
 	cpol = mode & SPI_CPOL;
 
-	speed_hz = xfer->speed_hz ? : spi->max_speed_hz;
+	speed_hz = xfer->speed_hz;
 
 	clkdiv = octeon_get_io_clock_rate() / (2 * speed_hz);
 

drivers/spi/spi-omap-100k.c

···
 {
 	struct omap1_spi100k *spi100k = spi_master_get_devdata(spi->master);
 	struct omap1_spi100k_cs *cs = spi->controller_state;
-	u8 word_len = spi->bits_per_word;
+	u8 word_len;
 
-	if (t != NULL && t->bits_per_word)
+	if (t != NULL)
 		word_len = t->bits_per_word;
-	if (!word_len)
-		word_len = 8;
+	else
+		word_len = spi->bits_per_word;
 
 	if (spi->bits_per_word > 32)
 		return -EINVAL;
···
 	struct spi_device *spi = m->spi;
 	struct spi_transfer *t = NULL;
 	int cs_active = 0;
-	int par_override = 0;
 	int status = 0;
 
 	list_for_each_entry(t, &m->transfers, transfer_list) {
···
 			status = -EINVAL;
 			break;
 		}
-		if (par_override || t->speed_hz || t->bits_per_word) {
-			par_override = 1;
-			status = omap1_spi100k_setup_transfer(spi, t);
-			if (status < 0)
-				break;
-			if (!t->speed_hz && !t->bits_per_word)
-				par_override = 0;
-		}
+		status = omap1_spi100k_setup_transfer(spi, t);
+		if (status < 0)
+			break;
 
 		if (!cs_active) {
 			omap1_spi100k_force_cs(spi100k, 1);
···
 		}
 	}
 
-	/* Restore defaults if they were overriden */
-	if (par_override) {
-		par_override = 0;
-		status = omap1_spi100k_setup_transfer(spi, NULL);
-	}
+	status = omap1_spi100k_setup_transfer(spi, NULL);
 
 	if (cs_active)
 		omap1_spi100k_force_cs(spi100k, 0);

drivers/spi/spi-omap-uwire.c

···
 static int uwire_txrx(struct spi_device *spi, struct spi_transfer *t)
 {
 	unsigned	len = t->len;
-	unsigned	bits = t->bits_per_word ? : spi->bits_per_word;
+	unsigned	bits = t->bits_per_word;
 	unsigned	bytes;
 	u16		val, w;
 	int		status = 0;
···
 	/* assume it's already enabled */
 	rate = clk_get_rate(uwire->ck);
 
-	hz = spi->max_speed_hz;
-	if (t != NULL && t->speed_hz)
+	if (t != NULL)
 		hz = t->speed_hz;
+	else
+		hz = spi->max_speed_hz;
 
 	if (!hz) {
 		pr_debug("%s: zero speed?\n", dev_name(&spi->dev));

drivers/spi/spi-omap2-mcspi.c

···
 	return status;
 }
 
+static int omap2_mcspi_prepare_message(struct spi_master *master,
+				       struct spi_message *msg)
+{
+	struct omap2_mcspi	*mcspi = spi_master_get_devdata(master);
+	struct omap2_mcspi_regs	*ctx = &mcspi->ctx;
+	struct omap2_mcspi_cs	*cs;
+
+	/* Only a single channel can have the FORCE bit enabled
+	 * in its chconf0 register.
+	 * Scan all channels and disable them except the current one.
+	 * A FORCE can remain from a last transfer having cs_change enabled
+	 */
+	list_for_each_entry(cs, &ctx->cs, node) {
+		if (msg->spi->controller_state == cs)
+			continue;
+
+		if ((cs->chconf0 & OMAP2_MCSPI_CHCONF_FORCE)) {
+			cs->chconf0 &= ~OMAP2_MCSPI_CHCONF_FORCE;
+			writel_relaxed(cs->chconf0,
+					cs->base + OMAP2_MCSPI_CHCONF0);
+			readl_relaxed(cs->base + OMAP2_MCSPI_CHCONF0);
+		}
+	}
+
+	return 0;
+}
+
 static int omap2_mcspi_transfer_one(struct spi_master *master,
 		struct spi_device *spi, struct spi_transfer *t)
 {
···
 	master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32);
 	master->setup = omap2_mcspi_setup;
 	master->auto_runtime_pm = true;
+	master->prepare_message = omap2_mcspi_prepare_message;
 	master->transfer_one = omap2_mcspi_transfer_one;
 	master->set_cs = omap2_mcspi_set_cs;
 	master->cleanup = omap2_mcspi_cleanup;

drivers/spi/spi-ppc4xx.c

···
 	if (in_8(&hw->regs->cdm) != cdm)
 		out_8(&hw->regs->cdm, cdm);
 
-	spin_lock(&hw->bitbang.lock);
+	mutex_lock(&hw->bitbang.lock);
 	if (!hw->bitbang.busy) {
 		hw->bitbang.chipselect(spi, BITBANG_CS_INACTIVE);
 		/* Need to ndelay here? */
 	}
-	spin_unlock(&hw->bitbang.lock);
+	mutex_unlock(&hw->bitbang.lock);
 
 	return 0;
 }

drivers/spi/spi-pxa2xx-dma.c

···
 	}
 }
 
-void pxa2xx_spi_dma_resume(struct driver_data *drv_data)
-{
-}
-
 int pxa2xx_spi_set_dma_burst_and_threshold(struct chip_data *chip,
 					   struct spi_device *spi,
 					   u8 bits_per_word, u32 *burst_code,

drivers/spi/spi-pxa2xx.c

···
  * GNU General Public License for more details.
  */
 
+#include <linux/bitops.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/device.h>
···
 				| QUARK_X1000_SSCR1_TFT		\
 				| SSCR1_SPH | SSCR1_SPO | SSCR1_LBM)
 
-#define GENERAL_REG_RXTO_HOLDOFF_DISABLE BIT(24)
-#define SPI_CS_CONTROL_SW_MODE	BIT(0)
-#define SPI_CS_CONTROL_CS_HIGH	BIT(1)
+#define LPSS_GENERAL_REG_RXTO_HOLDOFF_DISABLE	BIT(24)
+#define LPSS_CS_CONTROL_SW_MODE			BIT(0)
+#define LPSS_CS_CONTROL_CS_HIGH			BIT(1)
+#define LPSS_CS_CONTROL_CS_SEL_SHIFT		8
+#define LPSS_CS_CONTROL_CS_SEL_MASK		(3 << LPSS_CS_CONTROL_CS_SEL_SHIFT)
+#define LPSS_CAPS_CS_EN_SHIFT			9
+#define LPSS_CAPS_CS_EN_MASK			(0xf << LPSS_CAPS_CS_EN_SHIFT)
 
 struct lpss_config {
 	/* LPSS offset from drv_data->ioaddr */
···
 	int reg_general;
 	int reg_ssp;
 	int reg_cs_ctrl;
+	int reg_capabilities;
 	/* FIFO thresholds */
 	u32 rx_threshold;
 	u32 tx_threshold_lo;
···
 		.reg_general = 0x08,
 		.reg_ssp = 0x0c,
 		.reg_cs_ctrl = 0x18,
+		.reg_capabilities = -1,
 		.rx_threshold = 64,
 		.tx_threshold_lo = 160,
 		.tx_threshold_hi = 224,
···
 		.reg_general = 0x08,
 		.reg_ssp = 0x0c,
 		.reg_cs_ctrl = 0x18,
+		.reg_capabilities = -1,
 		.rx_threshold = 64,
 		.tx_threshold_lo = 160,
 		.tx_threshold_hi = 224,
···
 		.reg_general = -1,
 		.reg_ssp = 0x20,
 		.reg_cs_ctrl = 0x24,
+		.reg_capabilities = 0xfc,
 		.rx_threshold = 1,
 		.tx_threshold_lo = 32,
 		.tx_threshold_hi = 56,
+	},
+	{	/* LPSS_BXT_SSP */
+		.offset = 0x200,
+		.reg_general = -1,
+		.reg_ssp = 0x20,
+		.reg_cs_ctrl = 0x24,
+		.reg_capabilities = 0xfc,
+		.rx_threshold = 1,
+		.tx_threshold_lo = 16,
+		.tx_threshold_hi = 48,
 	},
 };
 
···
 	case LPSS_LPT_SSP:
 	case LPSS_BYT_SSP:
 	case LPSS_SPT_SSP:
+	case LPSS_BXT_SSP:
 		return true;
 	default:
 		return false;
···
 	drv_data->lpss_base = drv_data->ioaddr + config->offset;
 
 	/* Enable software chip select control */
-	value = SPI_CS_CONTROL_SW_MODE | SPI_CS_CONTROL_CS_HIGH;
+	value = __lpss_ssp_read_priv(drv_data, config->reg_cs_ctrl);
+	value &= ~(LPSS_CS_CONTROL_SW_MODE | LPSS_CS_CONTROL_CS_HIGH);
+	value |= LPSS_CS_CONTROL_SW_MODE | LPSS_CS_CONTROL_CS_HIGH;
 	__lpss_ssp_write_priv(drv_data, config->reg_cs_ctrl, value);
 
 	/* Enable multiblock DMA transfers */
···
 		if (config->reg_general >= 0) {
 			value = __lpss_ssp_read_priv(drv_data,
 						     config->reg_general);
-			value |= GENERAL_REG_RXTO_HOLDOFF_DISABLE;
+			value |= LPSS_GENERAL_REG_RXTO_HOLDOFF_DISABLE;
 			__lpss_ssp_write_priv(drv_data,
 					      config->reg_general, value);
 		}
···
 static void lpss_ssp_cs_control(struct driver_data *drv_data, bool enable)
 {
 	const struct lpss_config *config;
-	u32 value;
+	u32 value, cs;
 
 	config = lpss_get_config(drv_data);
 
 	value = __lpss_ssp_read_priv(drv_data, config->reg_cs_ctrl);
-	if (enable)
-		value &= ~SPI_CS_CONTROL_CS_HIGH;
-	else
-		value |= SPI_CS_CONTROL_CS_HIGH;
+	if (enable) {
+		cs = drv_data->cur_msg->spi->chip_select;
+		cs <<= LPSS_CS_CONTROL_CS_SEL_SHIFT;
+		if (cs != (value & LPSS_CS_CONTROL_CS_SEL_MASK)) {
+			/*
+			 * When switching another chip select output active
+			 * the output must be selected first and wait 2 ssp_clk
+			 * cycles before changing state to active. Otherwise
+			 * a short glitch will occur on the previous chip
+			 * select since output select is latched but state
+			 * control is not.
+			 */
+			value &= ~LPSS_CS_CONTROL_CS_SEL_MASK;
+			value |= cs;
+			__lpss_ssp_write_priv(drv_data,
+					      config->reg_cs_ctrl, value);
+			ndelay(1000000000 /
+			       (drv_data->master->max_speed_hz / 2));
+		}
+		value &= ~LPSS_CS_CONTROL_CS_HIGH;
+	} else {
+		value |= LPSS_CS_CONTROL_CS_HIGH;
+	}
 	__lpss_ssp_write_priv(drv_data, config->reg_cs_ctrl, value);
 }
 
···
 	mul = (1 << 24) >> 1;
 
 	/* Calculate initial quot */
-	q1 = DIV_ROUND_CLOSEST(fref1, rate);
+	q1 = DIV_ROUND_UP(fref1, rate);
 
 	/* Scale q1 if it's too big */
 	if (q1 > 256) {
···
 
 	/* Case 2 */
 
-	q2 = DIV_ROUND_CLOSEST(fref2, rate);
+	q2 = DIV_ROUND_UP(fref2, rate);
 	r2 = abs(fref2 / q2 - rate);
 
 	/*
···
 		mul = (1 << 24) * 2 / 5;
 	}
 
-	/* Check case 3 only If the divisor is big enough */
+	/* Check case 3 only if the divisor is big enough */
 	if (fref / rate >= 80) {
 		u64 fssp;
 		u32 m;
 
 		/* Calculate initial quot */
-		q1 = DIV_ROUND_CLOSEST(fref, rate);
+		q1 = DIV_ROUND_UP(fref, rate);
 		m = (1 << 24) / q1;
 
 		/* Get the remainder */
···
 
 static unsigned int ssp_get_clk_div(struct driver_data *drv_data, int rate)
 {
-	unsigned long ssp_clk = drv_data->max_clk_rate;
+	unsigned long ssp_clk = drv_data->master->max_speed_hz;
 	const struct ssp_device *ssp = drv_data->ssp;
 
 	rate = min_t(int, ssp_clk, rate);
···
 }
 
 static unsigned int pxa2xx_ssp_get_clk_div(struct driver_data *drv_data,
-					   struct chip_data *chip, int rate)
+					   int rate)
 {
+	struct chip_data *chip = drv_data->cur_chip;
 	unsigned int clk_div;
 
 	switch (drv_data->ssp_type) {
···
 	drv_data->read = drv_data->rx ? chip->read : null_reader;
 
 	/* Change speed and bit per word on a per transfer */
-	cr0 = chip->cr0;
-	if (transfer->speed_hz || transfer->bits_per_word) {
+	bits = transfer->bits_per_word;
+	speed = transfer->speed_hz;
 
-		bits = chip->bits_per_word;
-		speed = chip->speed_hz;
+	clk_div = pxa2xx_ssp_get_clk_div(drv_data, speed);
 
-		if (transfer->speed_hz)
-			speed = transfer->speed_hz;
-
-		if (transfer->bits_per_word)
-			bits = transfer->bits_per_word;
-
-		clk_div = pxa2xx_ssp_get_clk_div(drv_data, chip, speed);
-
-		if (bits <= 8) {
-			drv_data->n_bytes = 1;
-			drv_data->read = drv_data->read != null_reader ?
-						u8_reader : null_reader;
-			drv_data->write = drv_data->write != null_writer ?
-						u8_writer : null_writer;
-		} else if (bits <= 16) {
-			drv_data->n_bytes = 2;
-			drv_data->read = drv_data->read != null_reader ?
-						u16_reader : null_reader;
-			drv_data->write = drv_data->write != null_writer ?
-						u16_writer : null_writer;
-		} else if (bits <= 32) {
-			drv_data->n_bytes = 4;
-			drv_data->read = drv_data->read != null_reader ?
-						u32_reader : null_reader;
-			drv_data->write = drv_data->write != null_writer ?
-						u32_writer : null_writer;
-		}
-		/* if bits/word is changed in dma mode, then must check the
-		 * thresholds and burst also */
-		if (chip->enable_dma) {
-			if (pxa2xx_spi_set_dma_burst_and_threshold(chip,
-							message->spi,
-							bits, &dma_burst,
-							&dma_thresh))
-				dev_warn_ratelimited(&message->spi->dev,
-						     "pump_transfers: DMA burst size reduced to match bits_per_word\n");
-		}
-
-		cr0 = pxa2xx_configure_sscr0(drv_data, clk_div, bits);
+	if (bits <= 8) {
+		drv_data->n_bytes = 1;
+		drv_data->read = drv_data->read != null_reader ?
+					u8_reader : null_reader;
+		drv_data->write = drv_data->write != null_writer ?
+					u8_writer : null_writer;
+	} else if (bits <= 16) {
+		drv_data->n_bytes = 2;
+		drv_data->read = drv_data->read != null_reader ?
+					u16_reader : null_reader;
+		drv_data->write = drv_data->write != null_writer ?
+					u16_writer : null_writer;
+	} else if (bits <= 32) {
+		drv_data->n_bytes = 4;
+		drv_data->read = drv_data->read != null_reader ?
+					u32_reader : null_reader;
+		drv_data->write = drv_data->write != null_writer ?
+					u32_writer : null_writer;
 	}
+	/*
+	 * if bits/word is changed in dma mode, then must check the
+	 * thresholds and burst also
+	 */
+	if (chip->enable_dma) {
+		if (pxa2xx_spi_set_dma_burst_and_threshold(chip,
+						message->spi,
+						bits, &dma_burst,
+						&dma_thresh))
+			dev_warn_ratelimited(&message->spi->dev,
+					     "pump_transfers: DMA burst size reduced to match bits_per_word\n");
+	}
+
+	/* NOTE:  PXA25x_SSP _could_ use external clocking ... */
+	cr0 = pxa2xx_configure_sscr0(drv_data, clk_div, bits);
+	if (!pxa25x_ssp_comp(drv_data))
+		dev_dbg(&message->spi->dev, "%u Hz actual, %s\n",
+			drv_data->master->max_speed_hz
+				/ (1 + ((cr0 & SSCR0_SCR(0xfff)) >> 8)),
+			chip->enable_dma ? "DMA" : "PIO");
+	else
+		dev_dbg(&message->spi->dev, "%u Hz actual, %s\n",
+			drv_data->master->max_speed_hz / 2
+				/ (1 + ((cr0 & SSCR0_SCR(0x0ff)) >> 8)),
+			chip->enable_dma ? "DMA" : "PIO");
 
 	message->state = RUNNING_STATE;
 
···
 	struct chip_data *chip;
 	const struct lpss_config *config;
 	struct driver_data *drv_data = spi_master_get_devdata(spi->master);
-	unsigned int clk_div;
 	uint tx_thres, tx_hi_thres, rx_thres;
 
 	switch (drv_data->ssp_type) {
···
 	case LPSS_LPT_SSP:
 	case LPSS_BYT_SSP:
 	case LPSS_SPT_SSP:
+	case LPSS_BXT_SSP:
 		config = lpss_get_config(drv_data);
 		tx_thres = config->tx_threshold_lo;
 		tx_hi_thres = config->tx_threshold_hi;
···
 		}
 	}
 
-	clk_div = pxa2xx_ssp_get_clk_div(drv_data, chip, spi->max_speed_hz);
-	chip->speed_hz = spi->max_speed_hz;
-
-	chip->cr0 = pxa2xx_configure_sscr0(drv_data, clk_div,
-					   spi->bits_per_word);
 	switch (drv_data->ssp_type) {
 	case QUARK_X1000_SSP:
 		chip->threshold = (QUARK_X1000_SSCR1_RxTresh(rx_thres)
···
 	if (spi->mode & SPI_LOOP)
 		chip->cr1 |= SSCR1_LBM;
 
-	/* NOTE:  PXA25x_SSP _could_ use external clocking ... */
-	if (!pxa25x_ssp_comp(drv_data))
-		dev_dbg(&spi->dev, "%ld Hz actual, %s\n",
-			drv_data->max_clk_rate
-				/ (1 + ((chip->cr0 & SSCR0_SCR(0xfff)) >> 8)),
-			chip->enable_dma ? "DMA" : "PIO");
-	else
-		dev_dbg(&spi->dev, "%ld Hz actual, %s\n",
-			drv_data->max_clk_rate / 2
-				/ (1 + ((chip->cr0 & SSCR0_SCR(0x0ff)) >> 8)),
-			chip->enable_dma ? "DMA" : "PIO");
-
 	if (spi->bits_per_word <= 8) {
 		chip->n_bytes = 1;
 		chip->read = u8_reader;
···
 		chip->read = u16_reader;
 		chip->write = u16_writer;
 	} else if (spi->bits_per_word <= 32) {
-		if (!is_quark_x1000_ssp(drv_data))
-			chip->cr0 |= SSCR0_EDSS;
 		chip->n_bytes = 4;
 		chip->read = u32_reader;
 		chip->write = u32_writer;
 	}
-	chip->bits_per_word = spi->bits_per_word;
 
 	spi_set_ctldata(spi, chip);
 
···
 	kfree(chip);
 }
 
+#ifdef CONFIG_PCI
 #ifdef CONFIG_ACPI
 
 static const struct acpi_device_id pxa2xx_spi_acpi_match[] = {
···
 };
 MODULE_DEVICE_TABLE(acpi, pxa2xx_spi_acpi_match);
 
+static int pxa2xx_spi_get_port_id(struct acpi_device *adev)
+{
+	unsigned int devid;
+	int port_id = -1;
+
+	if (adev && adev->pnp.unique_id &&
+	    !kstrtouint(adev->pnp.unique_id, 0, &devid))
+		port_id = devid;
+	return port_id;
+}
+#else /* !CONFIG_ACPI */
+static int pxa2xx_spi_get_port_id(struct acpi_device *adev)
+{
+	return -1;
+}
+#endif
+
 /*
  * PCI IDs of compound devices that integrate both host controller and private
  * integrated DMA engine. Please note these are not used in module
···
 	/* SPT-H */
 	{ PCI_VDEVICE(INTEL, 0xa129), LPSS_SPT_SSP },
 	{ PCI_VDEVICE(INTEL, 0xa12a), LPSS_SPT_SSP },
+	/* BXT */
+	{ PCI_VDEVICE(INTEL, 0x0ac2), LPSS_BXT_SSP },
+	{ PCI_VDEVICE(INTEL, 0x0ac4), LPSS_BXT_SSP },
+	{ PCI_VDEVICE(INTEL, 0x0ac6), LPSS_BXT_SSP },
+	/* APL */
+	{ PCI_VDEVICE(INTEL, 0x5ac2), LPSS_BXT_SSP },
+	{ PCI_VDEVICE(INTEL, 0x5ac4), LPSS_BXT_SSP },
+	{ PCI_VDEVICE(INTEL, 0x5ac6), LPSS_BXT_SSP },
 	{ },
 };
 
···
 }
 
 static struct pxa2xx_spi_master *
-pxa2xx_spi_acpi_get_pdata(struct platform_device *pdev)
+pxa2xx_spi_init_pdata(struct platform_device *pdev)
 {
 	struct pxa2xx_spi_master *pdata;
 	struct acpi_device *adev;
···
 	struct resource *res;
 	const struct acpi_device_id *adev_id = NULL;
 	const struct pci_device_id *pcidev_id = NULL;
-	int devid, type;
+	int type;
 
-	if (!ACPI_HANDLE(&pdev->dev) ||
-	    acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev))
-		return NULL;
+	adev = ACPI_COMPANION(&pdev->dev);
 
 	if (dev_is_pci(pdev->dev.parent))
 		pcidev_id = pci_match_id(pxa2xx_spi_pci_compound_match,
 					 to_pci_dev(pdev->dev.parent));
-	else
+	else if (adev)
 		adev_id = acpi_match_device(pdev->dev.driver->acpi_match_table,
 					    &pdev->dev);
+	else
+		return NULL;
 
 	if (adev_id)
 		type = (int)adev_id->driver_data;
···
 	ssp->irq = platform_get_irq(pdev, 0);
 	ssp->type = type;
 	ssp->pdev = pdev;
-
-	ssp->port_id = -1;
-	if (adev->pnp.unique_id && !kstrtoint(adev->pnp.unique_id, 0, &devid))
-		ssp->port_id = devid;
+	ssp->port_id = pxa2xx_spi_get_port_id(adev);
 
 	pdata->num_chipselect = 1;
 	pdata->enable_dma = true;
···
 	return pdata;
 }
 
-#else
+#else /* !CONFIG_PCI */
 static inline struct pxa2xx_spi_master *
-pxa2xx_spi_acpi_get_pdata(struct platform_device *pdev)
+pxa2xx_spi_init_pdata(struct platform_device *pdev)
 {
 	return NULL;
 }
···
 	struct spi_master *master;
 	struct driver_data *drv_data;
 	struct ssp_device *ssp;
+	const struct lpss_config *config;
 	int status;
 	u32 tmp;
 
 	platform_info = dev_get_platdata(dev);
 	if (!platform_info) {
-		platform_info = pxa2xx_spi_acpi_get_pdata(pdev);
+		platform_info = pxa2xx_spi_init_pdata(pdev);
 		if (!platform_info) {
 			dev_err(&pdev->dev, "missing platform data\n");
 			return -ENODEV;
···
 	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LOOP;
 
 	master->bus_num = ssp->port_id;
-	master->num_chipselect = platform_info->num_chipselect;
 	master->dma_alignment = DMA_ALIGNMENT;
 	master->cleanup = cleanup;
 	master->setup = setup;
···
 	/* Enable SOC clock */
 	clk_prepare_enable(ssp->clk);
 
-	drv_data->max_clk_rate = clk_get_rate(ssp->clk);
+	master->max_speed_hz = clk_get_rate(ssp->clk);
 
 	/* Load default SSP configuration */
 	pxa2xx_spi_write(drv_data, SSCR0, 0);
···
 
 	if (is_lpss_ssp(drv_data))
 		lpss_ssp_setup(drv_data);
+
+	if (is_lpss_ssp(drv_data)) {
+		lpss_ssp_setup(drv_data);
+		config = lpss_get_config(drv_data);
+		if (config->reg_capabilities >= 0) {
+			tmp = __lpss_ssp_read_priv(drv_data,
+						   config->reg_capabilities);
+			tmp &= LPSS_CAPS_CS_EN_MASK;
+			tmp >>= LPSS_CAPS_CS_EN_SHIFT;
+			platform_info->num_chipselect = ffz(tmp);
+		}
+	}
+	master->num_chipselect = platform_info->num_chipselect;
 
 	tasklet_init(&drv_data->pump_transfers, pump_transfers,
 		     (unsigned long)drv_data);
···
 	struct driver_data *drv_data = dev_get_drvdata(dev);
 	struct ssp_device *ssp = drv_data->ssp;
 	int status = 0;
-
-	pxa2xx_spi_dma_resume(drv_data);
 
 	/* Enable the SSP clock */
 	if (!pm_runtime_suspended(dev))

drivers/spi/spi-pxa2xx.h

···
 	u32 clear_sr;
 	u32 mask_sr;
 
-	/* Maximun clock rate */
-	unsigned long max_clk_rate;
-
 	/* Message Transfer pump */
 	struct tasklet_struct pump_transfers;
 
···
 };
 
 struct chip_data {
-	u32 cr0;
 	u32 cr1;
 	u32 dds_rate;
-	u32 psp;
 	u32 timeout;
 	u8 n_bytes;
 	u32 dma_burst_size;
···
 	u16 lpss_rx_threshold;
 	u16 lpss_tx_threshold;
 	u8 enable_dma;
-	u8 bits_per_word;
-	u32 speed_hz;
 	union {
 		int gpio_cs;
 		unsigned int frm;
···
 extern void pxa2xx_spi_dma_start(struct driver_data *drv_data);
 extern int pxa2xx_spi_dma_setup(struct driver_data *drv_data);
 extern void pxa2xx_spi_dma_release(struct driver_data *drv_data);
-extern void pxa2xx_spi_dma_resume(struct driver_data *drv_data);
 extern int pxa2xx_spi_set_dma_burst_and_threshold(struct chip_data *chip,
 						  struct spi_device *spi,
 						  u8 bits_per_word,
···
 	return 0;
 }
 static inline void pxa2xx_spi_dma_release(struct driver_data *drv_data) {}
-static inline void pxa2xx_spi_dma_resume(struct driver_data *drv_data) {}
 static inline int pxa2xx_spi_set_dma_burst_and_threshold(struct chip_data *chip,
 							 struct spi_device *spi,
 							 u8 bits_per_word,

drivers/spi/spi-s3c24xx.c

···
 	if (ret)
 		return ret;
 
-	spin_lock(&hw->bitbang.lock);
+	mutex_lock(&hw->bitbang.lock);
 	if (!hw->bitbang.busy) {
 		hw->bitbang.chipselect(spi, BITBANG_CS_INACTIVE);
 		/* need to ndelay for 0.5 clocktick ? */
 	}
-	spin_unlock(&hw->bitbang.lock);
+	mutex_unlock(&hw->bitbang.lock);
 
 	return 0;
 }

drivers/spi/spi-s3c64xx.c

···
 #define MAX_SPI_PORTS		6
 #define S3C64XX_SPI_QUIRK_POLL		(1 << 0)
 #define S3C64XX_SPI_QUIRK_CS_AUTO	(1 << 1)
+#define AUTOSUSPEND_TIMEOUT	2000
 
 /* Registers and bit-fields */
 
···
 
 	/* Only BPW and Speed may change across transfers */
 	bpw = xfer->bits_per_word;
-	speed = xfer->speed_hz ? : spi->max_speed_hz;
+	speed = xfer->speed_hz;
 
 	if (bpw != sdd->cur_bpw || speed != sdd->cur_speed) {
 		sdd->cur_bpw = bpw;
···
 		}
 	}
 
-	pm_runtime_put(&sdd->pdev->dev);
+	pm_runtime_mark_last_busy(&sdd->pdev->dev);
+	pm_runtime_put_autosuspend(&sdd->pdev->dev);
 	if (!(sdd->port_conf->quirks & S3C64XX_SPI_QUIRK_CS_AUTO))
 		writel(S3C64XX_SPI_SLAVE_SIG_INACT, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
 	return 0;
 
 setup_exit:
-	pm_runtime_put(&sdd->pdev->dev);
+	pm_runtime_mark_last_busy(&sdd->pdev->dev);
+	pm_runtime_put_autosuspend(&sdd->pdev->dev);
 	/* setup() returns with device de-selected */
 	if (!(sdd->port_conf->quirks & S3C64XX_SPI_QUIRK_CS_AUTO))
 		writel(S3C64XX_SPI_SLAVE_SIG_INACT, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
···
 		goto err2;
 	}
 
+	pm_runtime_set_autosuspend_delay(&pdev->dev, AUTOSUSPEND_TIMEOUT);
+	pm_runtime_use_autosuspend(&pdev->dev);
+	pm_runtime_set_active(&pdev->dev);
+	pm_runtime_enable(&pdev->dev);
+	pm_runtime_get_sync(&pdev->dev);
+
 	/* Setup Deufult Mode */
 	s3c64xx_spi_hwinit(sdd, sdd->port_id);
 
···
 	       S3C64XX_SPI_INT_TX_OVERRUN_EN | S3C64XX_SPI_INT_TX_UNDERRUN_EN,
 	       sdd->regs + S3C64XX_SPI_INT_EN);
 
-	pm_runtime_set_active(&pdev->dev);
-	pm_runtime_enable(&pdev->dev);
-
 	ret = devm_spi_register_master(&pdev->dev, master);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "cannot register SPI master: %d\n", ret);
···
 					mem_res, (FIFO_LVL_MASK(sdd) >> 1) + 1,
 					sdd->rx_dma.dmach, sdd->tx_dma.dmach);
 
+	pm_runtime_mark_last_busy(&pdev->dev);
+	pm_runtime_put_autosuspend(&pdev->dev);
+
 	return 0;
 
 err3:
+	pm_runtime_put_noidle(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+	pm_runtime_set_suspended(&pdev->dev);
+
 	clk_disable_unprepare(sdd->src_clk);
 err2:
 	clk_disable_unprepare(sdd->clk);
···
 	struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
 	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
 
-	pm_runtime_disable(&pdev->dev);
+	pm_runtime_get_sync(&pdev->dev);
 
 	writel(0, sdd->regs + S3C64XX_SPI_INT_EN);
 
 	clk_disable_unprepare(sdd->src_clk);
 
 	clk_disable_unprepare(sdd->clk);
+
+	pm_runtime_put_noidle(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+	pm_runtime_set_suspended(&pdev->dev);
 
 	return 0;
 }
···
 	if (ret)
 		return ret;
 
-	if (!pm_runtime_suspended(dev)) {
-		clk_disable_unprepare(sdd->clk);
-		clk_disable_unprepare(sdd->src_clk);
-	}
+	ret = pm_runtime_force_suspend(dev);
+	if (ret < 0)
+		return ret;
 
 	sdd->cur_speed = 0; /* Output Clock is stopped */
 
···
 	struct spi_master *master = dev_get_drvdata(dev);
 	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
 	struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
+	int ret;
 
 	if (sci->cfg_gpio)
 		sci->cfg_gpio();
 
-	if (!pm_runtime_suspended(dev)) {
-		clk_prepare_enable(sdd->src_clk);
-		clk_prepare_enable(sdd->clk);
-	}
+	ret = pm_runtime_force_resume(dev);
+	if (ret < 0)
+		return ret;
 
 	s3c64xx_spi_hwinit(sdd, sdd->port_id);
 

drivers/spi/spi-ti-qspi.c

···
 };
 
 struct ti_qspi {
-	struct completion       transfer_complete;
-
 	/* list synchronization */
 	struct mutex            list_lock;
 
···
 
 #define QSPI_PID			(0x0)
 #define QSPI_SYSCONFIG			(0x10)
-#define QSPI_INTR_STATUS_RAW_SET	(0x20)
-#define QSPI_INTR_STATUS_ENABLED_CLEAR	(0x24)
-#define QSPI_INTR_ENABLE_SET_REG	(0x28)
-#define QSPI_INTR_ENABLE_CLEAR_REG	(0x2c)
 #define QSPI_SPI_CLOCK_CNTRL_REG	(0x40)
 #define QSPI_SPI_DC_REG			(0x44)
 #define QSPI_SPI_CMD_REG		(0x48)
···
 #define QSPI_RD_DUAL			(3 << 16)
 #define QSPI_RD_QUAD			(7 << 16)
 #define QSPI_INVAL			(4 << 16)
-#define QSPI_WC_CMD_INT_EN			(1 << 14)
 #define QSPI_FLEN(n)			((n - 1) << 0)
 #define QSPI_WLEN_MAX_BITS		128
 #define QSPI_WLEN_MAX_BYTES		16
···
 /* STATUS REGISTER */
 #define BUSY				0x01
 #define WC				0x02
-
-/* INTERRUPT REGISTER */
-#define QSPI_WC_INT_EN				(1 << 1)
-#define QSPI_WC_INT_DISABLE			(1 << 1)
 
 /* Device Control */
 #define QSPI_DD(m, n)			(m << (3 + n * 8))
···
 	return stat & BUSY;
 }
 
+static inline int ti_qspi_poll_wc(struct ti_qspi *qspi)
+{
+	u32 stat;
+	unsigned long timeout = jiffies + QSPI_COMPLETION_TIMEOUT;
+
+	do {
+		stat = ti_qspi_read(qspi, QSPI_SPI_STATUS_REG);
+		if (stat & WC)
+			return 0;
+		cpu_relax();
+	} while (time_after(timeout, jiffies));
+
+	stat = ti_qspi_read(qspi, QSPI_SPI_STATUS_REG);
+	if (stat & WC)
+		return 0;
+	return  -ETIMEDOUT;
+}
+
 static int qspi_write_msg(struct ti_qspi *qspi, struct spi_transfer *t)
 {
 	int wlen, count, xfer_len;
···
 		}
 
 		ti_qspi_write(qspi, cmd, QSPI_SPI_CMD_REG);
-		if (!wait_for_completion_timeout(&qspi->transfer_complete,
-						 QSPI_COMPLETION_TIMEOUT)) {
+		if (ti_qspi_poll_wc(qspi)) {
 			dev_err(qspi->dev, "write timed out\n");
 			return -ETIMEDOUT;
 		}
···
 			return -EBUSY;
 
 		ti_qspi_write(qspi, cmd, QSPI_SPI_CMD_REG);
-		if (!wait_for_completion_timeout(&qspi->transfer_complete,
-						 QSPI_COMPLETION_TIMEOUT)) {
+		if (ti_qspi_poll_wc(qspi)) {
 			dev_err(qspi->dev, "read timed out\n");
 			return -ETIMEDOUT;
 		}
···
 	qspi->cmd = 0;
 	qspi->cmd |= QSPI_EN_CS(spi->chip_select);
 	qspi->cmd |= QSPI_FLEN(frame_length);
-	qspi->cmd |= QSPI_WC_CMD_INT_EN;
 
-	ti_qspi_write(qspi, QSPI_WC_INT_EN, QSPI_INTR_ENABLE_SET_REG);
 	ti_qspi_write(qspi, qspi->dc, QSPI_SPI_DC_REG);
 
 	mutex_lock(&qspi->list_lock);
···
 
 	mutex_unlock(&qspi->list_lock);
 
+	ti_qspi_write(qspi, qspi->cmd | QSPI_INVAL, QSPI_SPI_CMD_REG);
 	m->status = status;
 	spi_finalize_current_message(master);
 
-	ti_qspi_write(qspi, qspi->cmd | QSPI_INVAL, QSPI_SPI_CMD_REG);
-
 	return status;
-}
-
-static irqreturn_t ti_qspi_isr(int irq, void *dev_id)
-{
-	struct ti_qspi *qspi = dev_id;
-	u16 int_stat;
-	u32 stat;
-
-	irqreturn_t ret = IRQ_HANDLED;
-
-	int_stat = ti_qspi_read(qspi, QSPI_INTR_STATUS_ENABLED_CLEAR);
-	stat = ti_qspi_read(qspi, QSPI_SPI_STATUS_REG);
-
-	if (!int_stat) {
-		dev_dbg(qspi->dev, "No IRQ triggered\n");
-		ret = IRQ_NONE;
-		goto out;
-	}
-
-	ti_qspi_write(qspi, QSPI_WC_INT_DISABLE,
-				QSPI_INTR_STATUS_ENABLED_CLEAR);
-	if (stat & WC)
-		complete(&qspi->transfer_complete);
-out:
-	return ret;
 }
 
 static int ti_qspi_runtime_resume(struct device *dev)
···
 		}
 	}
 
-	ret = devm_request_irq(&pdev->dev, irq, ti_qspi_isr, 0,
-			dev_name(&pdev->dev), qspi);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "Failed to register ISR for IRQ %d\n",
-				irq);
-		goto free_master;
-	}
-
 	qspi->fclk = devm_clk_get(&pdev->dev, "fck");
 	if (IS_ERR(qspi->fclk)) {
 		ret = PTR_ERR(qspi->fclk);
 		dev_err(&pdev->dev, "could not get clk: %d\n", ret);
 	}
-
-	init_completion(&qspi->transfer_complete);
 
 	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_set_autosuspend_delay(&pdev->dev, QSPI_AUTOSUSPEND_TIMEOUT);
···
 
 static int ti_qspi_remove(struct platform_device *pdev)
 {
-	struct ti_qspi *qspi = platform_get_drvdata(pdev);
-	int ret;
-
-	ret = pm_runtime_get_sync(qspi->dev);
-	if (ret < 0) {
-		dev_err(qspi->dev, "pm_runtime_get_sync() failed\n");
-		return ret;
-	}
-
-	ti_qspi_write(qspi, QSPI_WC_INT_DISABLE, QSPI_INTR_ENABLE_CLEAR_REG);
-
-	pm_runtime_put(qspi->dev);
+	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 
 	return 0;

drivers/spi/spi-tle62x0.c

···
 static struct spi_driver tle62x0_driver = {
 	.driver = {
 		.name	= "tle62x0",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= tle62x0_probe,
 	.remove		= tle62x0_remove,

drivers/spi/spi-txx9.c

···
 		u32 data;
 		unsigned int len = t->len;
 		unsigned int wsize;
-		u32 speed_hz = t->speed_hz ? : spi->max_speed_hz;
+		u32 speed_hz = t->speed_hz;
 		u8 bits_per_word = t->bits_per_word;
 
 		wsize = bits_per_word >> 3; /* in bytes */

drivers/spi/spi-xilinx.c

···
 
 	while (remaining_words) {
 		int n_words, tx_words, rx_words;
+		u32 sr;
 
 		n_words = min(remaining_words, xspi->buffer_size);
 
···
 		if (use_irq) {
 			xspi->write_fn(cr, xspi->regs + XSPI_CR_OFFSET);
 			wait_for_completion(&xspi->done);
-		} else
-			while (!(xspi->read_fn(xspi->regs + XSPI_SR_OFFSET) &
-						XSPI_SR_TX_EMPTY_MASK))
-				;
-
-		/* A transmit has just completed. Process received data and
-		 * check for more data to transmit. Always inhibit the
-		 * transmitter while the Isr refills the transmit register/FIFO,
-		 * or make sure it is stopped if we're done.
-		 */
-		if (use_irq)
+			/* A transmit has just completed. Process received data
+			 * and check for more data to transmit. Always inhibit
+			 * the transmitter while the Isr refills the transmit
+			 * register/FIFO, or make sure it is stopped if we're
+			 * done.
+			 */
 			xspi->write_fn(cr | XSPI_CR_TRANS_INHIBIT,
-			       xspi->regs + XSPI_CR_OFFSET);
+				       xspi->regs + XSPI_CR_OFFSET);
+			sr = XSPI_SR_TX_EMPTY_MASK;
+		} else
+			sr = xspi->read_fn(xspi->regs + XSPI_SR_OFFSET);
 
 		/* Read out all the data from the Rx FIFO */
 		rx_words = n_words;
-		while (rx_words--)
-			xilinx_spi_rx(xspi);
+		while (rx_words) {
+			if ((sr & XSPI_SR_TX_EMPTY_MASK) && (rx_words > 1)) {
+				xilinx_spi_rx(xspi);
+				rx_words--;
+				continue;
+			}
+
+			sr = xspi->read_fn(xspi->regs + XSPI_SR_OFFSET);
+			if (!(sr & XSPI_SR_RX_EMPTY_MASK)) {
+				xilinx_spi_rx(xspi);
+				rx_words--;
+			}
+		}
 
 		remaining_words -= n_words;
 	}

drivers/spi/spi.c

···
 SPI_STATISTICS_SHOW(bytes_rx, "%llu");
 SPI_STATISTICS_SHOW(bytes_tx, "%llu");
 
+#define SPI_STATISTICS_TRANSFER_BYTES_HISTO(index, number)		\
+	SPI_STATISTICS_SHOW_NAME(transfer_bytes_histo##index,		\
+				 "transfer_bytes_histo_" number,	\
+				 transfer_bytes_histo[index],  "%lu")
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(0,  "0-1");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(1,  "2-3");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(2,  "4-7");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(3,  "8-15");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(4,  "16-31");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(5,  "32-63");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(6,  "64-127");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(7,  "128-255");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(8,  "256-511");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(9,  "512-1023");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(10, "1024-2047");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(11, "2048-4095");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(12, "4096-8191");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(13, "8192-16383");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(14, "16384-32767");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(15, "32768-65535");
+SPI_STATISTICS_TRANSFER_BYTES_HISTO(16, "65536+");
+
 static struct attribute *spi_dev_attrs[] = {
 	&dev_attr_modalias.attr,
 	NULL,
···
 	&dev_attr_spi_device_bytes.attr,
 	&dev_attr_spi_device_bytes_rx.attr,
 	&dev_attr_spi_device_bytes_tx.attr,
+	&dev_attr_spi_device_transfer_bytes_histo0.attr,
+	&dev_attr_spi_device_transfer_bytes_histo1.attr,
+	&dev_attr_spi_device_transfer_bytes_histo2.attr,
+	&dev_attr_spi_device_transfer_bytes_histo3.attr,
+	&dev_attr_spi_device_transfer_bytes_histo4.attr,
+	&dev_attr_spi_device_transfer_bytes_histo5.attr,
+	&dev_attr_spi_device_transfer_bytes_histo6.attr,
+	&dev_attr_spi_device_transfer_bytes_histo7.attr,
+	&dev_attr_spi_device_transfer_bytes_histo8.attr,
+	&dev_attr_spi_device_transfer_bytes_histo9.attr,
+	&dev_attr_spi_device_transfer_bytes_histo10.attr,
+	&dev_attr_spi_device_transfer_bytes_histo11.attr,
+	&dev_attr_spi_device_transfer_bytes_histo12.attr,
+	&dev_attr_spi_device_transfer_bytes_histo13.attr,
+	&dev_attr_spi_device_transfer_bytes_histo14.attr,
+	&dev_attr_spi_device_transfer_bytes_histo15.attr,
+	&dev_attr_spi_device_transfer_bytes_histo16.attr,
 	NULL,
 };
 
···
 	&dev_attr_spi_master_bytes.attr,
 	&dev_attr_spi_master_bytes_rx.attr,
 	&dev_attr_spi_master_bytes_tx.attr,
+	&dev_attr_spi_master_transfer_bytes_histo0.attr,
+	&dev_attr_spi_master_transfer_bytes_histo1.attr,
+	&dev_attr_spi_master_transfer_bytes_histo2.attr,
+	&dev_attr_spi_master_transfer_bytes_histo3.attr,
+	&dev_attr_spi_master_transfer_bytes_histo4.attr,
+	&dev_attr_spi_master_transfer_bytes_histo5.attr,
+	&dev_attr_spi_master_transfer_bytes_histo6.attr,
+	&dev_attr_spi_master_transfer_bytes_histo7.attr,
+	&dev_attr_spi_master_transfer_bytes_histo8.attr,
+	&dev_attr_spi_master_transfer_bytes_histo9.attr,
+	&dev_attr_spi_master_transfer_bytes_histo10.attr,
+	&dev_attr_spi_master_transfer_bytes_histo11.attr,
+	&dev_attr_spi_master_transfer_bytes_histo12.attr,
+	&dev_attr_spi_master_transfer_bytes_histo13.attr,
+	&dev_attr_spi_master_transfer_bytes_histo14.attr,
+	&dev_attr_spi_master_transfer_bytes_histo15.attr,
+	&dev_attr_spi_master_transfer_bytes_histo16.attr,
 	NULL,
 };
 
···
 				       struct spi_master *master)
 {
 	unsigned long flags;
+	int l2len = min(fls(xfer->len), SPI_STATISTICS_HISTO_SIZE) - 1;
+
+	if (l2len < 0)
+		l2len = 0;
 
 	spin_lock_irqsave(&stats->lock, flags);
 
 	stats->transfers++;
+	stats->transfer_bytes_histo[l2len]++;
 
 	stats->bytes += xfer->len;
 	if ((xfer->tx_buf) &&
···
 static int spi_drv_probe(struct device *dev)
 {
 	const struct spi_driver		*sdrv = to_spi_driver(dev->driver);
+	struct spi_device		*spi = to_spi_device(dev);
 	int ret;
 
 	ret = of_clk_set_defaults(dev->of_node, false);
 	if (ret)
 		return ret;
 
+	if (dev->of_node) {
+		spi->irq = of_irq_get(dev->of_node, 0);
+		if (spi->irq == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+		if (spi->irq < 0)
+			spi->irq = 0;
+	}
+
 	ret = dev_pm_domain_attach(dev, true);
 	if (ret != -EPROBE_DEFER) {
-		ret = sdrv->probe(to_spi_device(dev));
+		ret = sdrv->probe(spi);
 		if (ret)
 			dev_pm_domain_detach(dev, true);
 	}
···
 }
 
 /**
- * spi_register_driver - register a SPI driver
+ * __spi_register_driver - register a SPI driver
  * @sdrv: the driver to register
  * Context: can sleep
+ *
+ * Return: zero on success, else a negative error code.
  */
-int spi_register_driver(struct spi_driver *sdrv)
+int __spi_register_driver(struct module *owner, struct spi_driver *sdrv)
 {
+	sdrv->driver.owner = owner;
 	sdrv->driver.bus = &spi_bus_type;
 	if (sdrv->probe)
 		sdrv->driver.probe = spi_drv_probe;
···
 		sdrv->driver.shutdown = spi_drv_shutdown;
 	return driver_register(&sdrv->driver);
 }
-EXPORT_SYMBOL_GPL(spi_register_driver);
+EXPORT_SYMBOL_GPL(__spi_register_driver);
 
 /*-------------------------------------------------------------------------*/
 
···
  * needs to discard the spi_device without adding it, then it should
  * call spi_dev_put() on it.
  *
- * Returns a pointer to the new device, or NULL.
+ * Return: a pointer to the new device, or NULL.
  */
 struct spi_device *spi_alloc_device(struct spi_master *master)
 {
···
  * Companion function to spi_alloc_device.  Devices allocated with
  * spi_alloc_device can be added onto the spi bus with this function.
  *
- * Returns 0 on success; negative errno on failure
+ * Return: 0 on success; negative errno on failure
  */
 int spi_add_device(struct spi_device *spi)
 {
···
  * this is exported so that for example a USB or parport based adapter
  * driver could add devices (which it would learn about out-of-band).
  *
- * Returns the new device, or NULL.
+ * Return: the new device, or NULL.
  */
 struct spi_device *spi_new_device(struct spi_master *master,
 				  struct spi_board_info *chip)
···
  *
  * The board info passed can safely be __initdata ... but be careful of
  * any embedded pointers (platform_data, etc), they're copied as-is.
+ *
+ * Return: zero on success, else a negative error code.
  */
 int spi_register_board_info(struct spi_board_info const *info, unsigned n)
 {
···
 	if (spi->mode & SPI_CS_HIGH)
 		enable = !enable;
 
-	if (spi->cs_gpio >= 0)
+	if (gpio_is_valid(spi->cs_gpio))
 		gpio_set_value(spi->cs_gpio, !enable);
 	else if (spi->master->set_cs)
 		spi->master->set_cs(spi, !enable);
···
  *
  * If there are more messages in the queue, the next message is returned from
  * this call.
+ *
+ * Return: the next message in the queue, else NULL if the queue is empty.
  */
 struct spi_message *spi_get_next_queued_message(struct spi_master *master)
 {
···
  * spi_queued_transfer - transfer function for queued transfers
  * @spi: spi device which is requesting transfer
  * @msg: spi message which is to handled is queued to driver queue
+ *
+ * Return: zero on success, else a negative error code.
  */
 static int spi_queued_transfer(struct spi_device *spi, struct spi_message *msg)
 {
···
 		goto err_out;
 	}
 	spi->max_speed_hz = value;
-
-	/* IRQ */
-	spi->irq = irq_of_parse_and_map(nc, 0);
 
 	/* Store a pointer to the node in the device structure */
 	of_node_get(nc);
···
  * only ones directly touching chip registers.  It's how they allocate
  * an spi_master structure, prior to calling spi_register_master().
  *
- * This must be called from context that can sleep.  It returns the SPI
- * master structure on success, else NULL.
+ * This must be called from context that can sleep.
  *
  * The caller is responsible for assigning the bus number and initializing
  * the master's methods before calling spi_register_master(); and (after errors
  * adding the device) calling spi_master_put() to prevent a memory leak.
+ *
+ * Return: the SPI master structure on success, else NULL.
  */
 struct spi_master *spi_alloc_master(struct device *dev, unsigned size)
 {
···
  * success, else a negative error code (dropping the master's refcount).
  * After a successful return, the caller is responsible for calling
  * spi_unregister_master().
+ *
+ * Return: zero on success, else a negative error code.
  */
 int spi_register_master(struct spi_master *master)
 {
···
  *
  * Register a SPI device as with spi_register_master() which will
  * automatically be unregister
+ *
+ * Return: zero on success, else a negative error code.
  */
 int devm_spi_register_master(struct device *dev, struct spi_master *master)
 {
···
  * arch init time.  It returns a refcounted pointer to the relevant
  * spi_master (which the caller must release), or NULL if there is
  * no such master registered.
+ *
+ * Return: the SPI master structure on success, else NULL.
  */
 struct spi_master *spi_busnum_to_master(u16 bus_num)
 {
···
  * that the underlying controller or its driver does not support.  For
  * example, not all hardware supports wire transfers using nine bit words,
  * LSB-first wire encoding, or active-high chipselects.
+ *
+ * Return: zero on success, else a negative error code.
  */
 int spi_setup(struct spi_device *spi)
 {
 	unsigned	bad_bits, ugly_bits;
-	int		status = 0;
+	int		status;
 
 	/* check mode to prevent that DUAL and QUAD set at the same time
 	 */
···
 	if (!spi->bits_per_word)
 		spi->bits_per_word = 8;
 
-	if (__spi_validate_bits_per_word(spi->master, spi->bits_per_word))
-		return -EINVAL;
+	status = __spi_validate_bits_per_word(spi->master, spi->bits_per_word);
+	if (status)
+		return status;
 
 	if (!spi->max_speed_hz)
 		spi->max_speed_hz = spi->master->max_speed_hz;
 
-	spi_set_cs(spi, false);
-
 	if (spi->master->setup)
 		status = spi->master->setup(spi);
+
+	spi_set_cs(spi, false);
 
 	dev_dbg(&spi->dev, "setup mode %d, %s%s%s%s%u bits/w, %u Hz max --> %d\n",
 			(int) (spi->mode & (SPI_CPOL | SPI_CPHA)),
···
  * no other spi_message queued to that device will be processed.
  * (This rule applies equally to all the synchronous transfer calls,
  * which are wrappers around this core asynchronous primitive.)
+ *
+ * Return: zero on success, else a negative error code.
  */
 int spi_async(struct spi_device *spi, struct spi_message *message)
 {
···
  * no other spi_message queued to that device will be processed.
  * (This rule applies equally to all the synchronous transfer calls,
  * which are wrappers around this core asynchronous primitive.)
+ *
+ * Return: zero on success, else a negative error code.
  */
 int spi_async_locked(struct spi_device *spi, struct spi_message *message)
 {
···
  * Also, the caller is guaranteeing that the memory associated with the
  * message will not be freed before this call returns.
  *
- * It returns zero on success, else a negative error code.
+ * Return: zero on success, else a negative error code.
  */
 int spi_sync(struct spi_device *spi, struct spi_message *message)
 {
···
  * SPI bus. It has to be preceded by a spi_bus_lock call. The SPI bus must
  * be released by a spi_bus_unlock call when the exclusive access is over.
  *
- * It returns zero on success, else a negative error code.
+ * Return: zero on success, else a negative error code.
  */
 int spi_sync_locked(struct spi_device *spi, struct spi_message *message)
 {
···
  * exclusive access is over. Data transfer must be done by spi_sync_locked
  * and spi_async_locked calls when the SPI bus lock is held.
  *
- * It returns zero on success, else a negative error code.
+ * Return: always zero.
  */
 int spi_bus_lock(struct spi_master *master)
 {
···
  * This call releases an SPI bus lock previously obtained by an spi_bus_lock
  * call.
  *
- * It returns zero on success, else a negative error code.
+ * Return: always zero.
  */
 int spi_bus_unlock(struct spi_master *master)
 {
···
  * portable code should never use this for more than 32 bytes.
  * Performance-sensitive or bulk transfer code should instead use
  * spi_{async,sync}() calls with dma-safe buffers.
+ *
+ * Return: zero on success, else a negative error code.
  */
 int spi_write_then_read(struct spi_device *spi,
 		const void *txbuf, unsigned n_tx,

drivers/spi/spidev.c

···
 static struct spi_driver spidev_spi_driver = {
 	.driver = {
 		.name =		"spidev",
-		.owner =	THIS_MODULE,
 		.of_match_table = of_match_ptr(spidev_dt_ids),
 	},
 	.probe =	spidev_probe,

drivers/staging/fbtft/fbtft.h

···
 static struct spi_driver fbtft_driver_spi_driver = {                       \
 	.driver = {                                                        \
 		.name   = _name,                                           \
-		.owner  = THIS_MODULE,                                     \
 		.of_match_table = of_match_ptr(dt_ids),                    \
 	},                                                                 \
 	.probe  = fbtft_driver_probe_spi,                                  \

drivers/staging/fbtft/flexfb.c

···
 static struct spi_driver flexfb_spi_driver = {
 	.driver = {
 		.name   = DRVNAME,
-		.owner  = THIS_MODULE,
 	},
 	.probe  = flexfb_probe_spi,
 	.remove = flexfb_remove_spi,

drivers/staging/iio/accel/adis16201_core.c

···
 static struct spi_driver adis16201_driver = {
 	.driver = {
 		.name = "adis16201",
-		.owner = THIS_MODULE,
 	},
 	.probe = adis16201_probe,
 	.remove = adis16201_remove,

drivers/staging/iio/accel/adis16203_core.c

···
 static struct spi_driver adis16203_driver = {
 	.driver = {
 		.name = "adis16203",
-		.owner = THIS_MODULE,
 	},
 	.probe = adis16203_probe,
 	.remove = adis16203_remove,

drivers/staging/iio/accel/adis16204_core.c

···
 static struct spi_driver adis16204_driver = {
 	.driver = {
 		.name = "adis16204",
-		.owner = THIS_MODULE,
 	},
 	.probe = adis16204_probe,
 	.remove = adis16204_remove,

drivers/staging/iio/accel/adis16209_core.c

···
 static struct spi_driver adis16209_driver = {
 	.driver = {
 		.name = "adis16209",
-		.owner = THIS_MODULE,
 	},
 	.probe = adis16209_probe,
 	.remove = adis16209_remove,

drivers/staging/iio/accel/adis16220_core.c

···
 static struct spi_driver adis16220_driver = {
 	.driver = {
 		.name = "adis16220",
-		.owner = THIS_MODULE,
 	},
 	.probe = adis16220_probe,
 	.remove = adis16220_remove,

drivers/staging/iio/accel/adis16240_core.c

···
 static struct spi_driver adis16240_driver = {
 	.driver = {
 		.name = "adis16240",
-		.owner = THIS_MODULE,
 	},
 	.probe = adis16240_probe,
 	.remove = adis16240_remove,

drivers/staging/iio/accel/lis3l02dq_core.c

···
 static struct spi_driver lis3l02dq_driver = {
 	.driver = {
 		.name = "lis3l02dq",
-		.owner = THIS_MODULE,
 	},
 	.probe = lis3l02dq_probe,
 	.remove = lis3l02dq_remove,

drivers/staging/iio/accel/sca3000_core.c

···
 static struct spi_driver sca3000_driver = {
 	.driver = {
 		.name = "sca3000",
-		.owner = THIS_MODULE,
 	},
 	.probe = sca3000_probe,
 	.remove = sca3000_remove,

drivers/staging/iio/adc/ad7192.c

···
 static struct spi_driver ad7192_driver = {
 	.driver = {
 		.name	= "ad7192",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7192_probe,
 	.remove		= ad7192_remove,

drivers/staging/iio/adc/ad7280a.c

···
 static struct spi_driver ad7280_driver = {
 	.driver = {
 		.name	= "ad7280",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7280_probe,
 	.remove		= ad7280_remove,

drivers/staging/iio/adc/ad7606_spi.c

···
 static struct spi_driver ad7606_driver = {
 	.driver = {
 		.name = "ad7606",
-		.owner = THIS_MODULE,
 		.pm    = AD7606_SPI_PM_OPS,
 	},
 	.probe = ad7606_spi_probe,

drivers/staging/iio/adc/ad7780.c

···
 static struct spi_driver ad7780_driver = {
 	.driver = {
 		.name	= "ad7780",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7780_probe,
 	.remove		= ad7780_remove,

drivers/staging/iio/adc/ad7816.c

···
 static struct spi_driver ad7816_driver = {
 	.driver = {
 		.name = "ad7816",
-		.owner = THIS_MODULE,
 	},
 	.probe = ad7816_probe,
 	.id_table = ad7816_id,

drivers/staging/iio/addac/adt7316-spi.c

···
 	.driver = {
 		.name = "adt7316",
 		.pm = ADT7316_PM_OPS,
-		.owner = THIS_MODULE,
 	},
 	.probe = adt7316_spi_probe,
 	.id_table = adt7316_spi_id,

drivers/staging/iio/frequency/ad9832.c

···
 static struct spi_driver ad9832_driver = {
 	.driver = {
 		.name	= "ad9832",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad9832_probe,
 	.remove		= ad9832_remove,

drivers/staging/iio/frequency/ad9834.c

···
 static struct spi_driver ad9834_driver = {
 	.driver = {
 		.name	= "ad9834",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad9834_probe,
 	.remove		= ad9834_remove,

drivers/staging/iio/gyro/adis16060_core.c

···
 static struct spi_driver adis16060_r_driver = {
 	.driver = {
 		.name = "adis16060_r",
-		.owner = THIS_MODULE,
 	},
 	.probe = adis16060_r_probe,
 };
···
 static struct spi_driver adis16060_w_driver = {
 	.driver = {
 		.name = "adis16060_w",
-		.owner = THIS_MODULE,
 	},
 	.probe = adis16060_w_probe,
 	.remove = adis16060_w_remove,

drivers/staging/iio/magnetometer/hmc5843_spi.c

···
 		.driver = {
 				.name = "hmc5843",
 				.pm = HMC5843_PM_OPS,
-				.owner = THIS_MODULE,
 		},
 		.id_table = hmc5843_id,
 		.probe = hmc5843_spi_probe,

drivers/staging/iio/meter/ade7753.c

···
 static struct spi_driver ade7753_driver = {
 	.driver = {
 		.name = "ade7753",
-		.owner = THIS_MODULE,
 	},
 	.probe = ade7753_probe,
 	.remove = ade7753_remove,

drivers/staging/iio/meter/ade7754.c

···
 static struct spi_driver ade7754_driver = {
 	.driver = {
 		.name = "ade7754",
-		.owner = THIS_MODULE,
 	},
 	.probe = ade7754_probe,
 	.remove = ade7754_remove,

drivers/staging/iio/meter/ade7758_core.c

···
 static struct spi_driver ade7758_driver = {
 	.driver = {
 		.name = "ade7758",
-		.owner = THIS_MODULE,
 	},
 	.probe = ade7758_probe,
 	.remove = ade7758_remove,

drivers/staging/iio/meter/ade7759.c

···
 static struct spi_driver ade7759_driver = {
 	.driver = {
 		.name = "ade7759",
-		.owner = THIS_MODULE,
 	},
 	.probe = ade7759_probe,
 	.remove = ade7759_remove,

drivers/staging/iio/meter/ade7854-spi.c

···
 static struct spi_driver ade7854_driver = {
 	.driver = {
 		.name = "ade7854",
-		.owner = THIS_MODULE,
 	},
 	.probe = ade7854_spi_probe,
 	.remove = ade7854_spi_remove,

drivers/staging/iio/resolver/ad2s1200.c

···
 static struct spi_driver ad2s1200_driver = {
 	.driver = {
 		.name = DRV_NAME,
-		.owner = THIS_MODULE,
 	},
 	.probe = ad2s1200_probe,
 	.id_table = ad2s1200_id,

drivers/staging/iio/resolver/ad2s1210.c

···
 static struct spi_driver ad2s1210_driver = {
 	.driver = {
 		.name = DRV_NAME,
-		.owner = THIS_MODULE,
 	},
 	.probe = ad2s1210_probe,
 	.remove = ad2s1210_remove,

drivers/staging/iio/resolver/ad2s90.c

···
 static struct spi_driver ad2s90_driver = {
 	.driver = {
 		.name = "ad2s90",
-		.owner = THIS_MODULE,
 	},
 	.probe = ad2s90_probe,
 	.id_table = ad2s90_id,

drivers/staging/mt29f_spinand/mt29f_spinand.c

···
 static struct spi_driver spinand_driver = {
 	.driver = {
 		.name		= "mt29f",
-		.owner		= THIS_MODULE,
 		.of_match_table	= spinand_dt,
 	},
 	.probe		= spinand_probe,

drivers/tty/serial/ifx6x60.c

···
 	.driver = {
 		.name = DRVNAME,
 		.pm = &ifx_spi_pm,
-		.owner = THIS_MODULE},
+	},
 	.probe = ifx_spi_spi_probe,
 	.shutdown = ifx_spi_spi_shutdown,
 	.remove = ifx_spi_spi_remove,

drivers/tty/serial/max3100.c

···
 static struct spi_driver max3100_driver = {
 	.driver = {
 		.name		= "max3100",
-		.owner		= THIS_MODULE,
 		.pm		= MAX3100_PM_OPS,
 	},
 	.probe		= max3100_probe,

drivers/tty/serial/max310x.c

···
 static struct spi_driver max310x_uart_driver = {
 	.driver = {
 		.name		= MAX310X_NAME,
-		.owner		= THIS_MODULE,
 		.of_match_table	= of_match_ptr(max310x_dt_ids),
 		.pm		= &max310x_pm_ops,
 	},

drivers/tty/serial/sc16is7xx.c

···
 static struct spi_driver sc16is7xx_spi_uart_driver = {
 	.driver = {
 		.name		= SC16IS7XX_NAME,
-		.owner		= THIS_MODULE,
 		.of_match_table	= of_match_ptr(sc16is7xx_dt_ids),
 	},
 	.probe		= sc16is7xx_spi_probe,

drivers/usb/host/max3421-hcd.c

···
 	.remove		= max3421_remove,
 	.driver		= {
 		.name	= "max3421-hcd",
-		.owner	= THIS_MODULE,
 	},
 };
 

drivers/video/backlight/ams369fg06.c

···
 static struct spi_driver ams369fg06_driver = {
 	.driver = {
 		.name	= "ams369fg06",
-		.owner	= THIS_MODULE,
 		.pm	= &ams369fg06_pm_ops,
 	},
 	.probe		= ams369fg06_probe,

drivers/video/backlight/corgi_lcd.c

···
 static struct spi_driver corgi_lcd_driver = {
 	.driver		= {
 		.name	= "corgi-lcd",
-		.owner	= THIS_MODULE,
 		.pm	= &corgi_lcd_pm_ops,
 	},
 	.probe		= corgi_lcd_probe,

drivers/video/backlight/ili922x.c

···
 static struct spi_driver ili922x_driver = {
 	.driver = {
 		.name = "ili922x",
-		.owner = THIS_MODULE,
 	},
 	.probe = ili922x_probe,
 	.remove = ili922x_remove,

drivers/video/backlight/l4f00242t03.c

···
 static struct spi_driver l4f00242t03_driver = {
 	.driver = {
 		.name	= "l4f00242t03",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= l4f00242t03_probe,
 	.remove		= l4f00242t03_remove,

drivers/video/backlight/ld9040.c

···
 static struct spi_driver ld9040_driver = {
 	.driver = {
 		.name	= "ld9040",
-		.owner	= THIS_MODULE,
 		.pm	= &ld9040_pm_ops,
 	},
 	.probe		= ld9040_probe,

drivers/video/backlight/lms283gf05.c

···
 static struct spi_driver lms283gf05_driver = {
 	.driver = {
 		.name	= "lms283gf05",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= lms283gf05_probe,
 };

drivers/video/backlight/lms501kf03.c

···
 static struct spi_driver lms501kf03_driver = {
 	.driver = {
 		.name	= "lms501kf03",
-		.owner	= THIS_MODULE,
 		.pm	= &lms501kf03_pm_ops,
 	},
 	.probe		= lms501kf03_probe,

drivers/video/backlight/ltv350qv.c

···
 static struct spi_driver ltv350qv_driver = {
 	.driver = {
 		.name		= "ltv350qv",
-		.owner		= THIS_MODULE,
 		.pm		= &ltv350qv_pm_ops,
 	},
 

drivers/video/backlight/s6e63m0.c

···
 static struct spi_driver s6e63m0_driver = {
 	.driver = {
 		.name	= "s6e63m0",
-		.owner	= THIS_MODULE,
 		.pm	= &s6e63m0_pm_ops,
 	},
 	.probe		= s6e63m0_probe,

drivers/video/backlight/tdo24m.c

···
 static struct spi_driver tdo24m_driver = {
 	.driver = {
 		.name		= "tdo24m",
-		.owner		= THIS_MODULE,
 		.pm		= &tdo24m_pm_ops,
 	},
 	.probe		= tdo24m_probe,

drivers/video/backlight/tosa_lcd.c

···
 static struct spi_driver tosa_lcd_driver = {
 	.driver = {
 		.name		= "tosa-lcd",
-		.owner		= THIS_MODULE,
 		.pm		= &tosa_lcd_pm_ops,
 	},
 	.probe		= tosa_lcd_probe,

drivers/video/backlight/vgg2432a4.c

···
 static struct spi_driver vgg2432a4_driver = {
 	.driver = {
 		.name		= "VGG2432A4",
-		.owner		= THIS_MODULE,
 		.pm		= &vgg2432a4_pm_ops,
 	},
 	.probe		= vgg2432a4_probe,

drivers/video/fbdev/mmp/panel/tpo_tj032md01bw.c

···
 static struct spi_driver panel_tpohvga_driver = {
 	.driver		= {
 		.name	= "tpo-hvga",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= tpohvga_probe,
 };

drivers/video/fbdev/omap/lcd_mipid.c

···
 static struct spi_driver mipid_spi_driver = {
 	.driver = {
 		.name	= MIPID_MODULE_NAME,
-		.owner	= THIS_MODULE,
 	},
 	.probe	= mipid_spi_probe,
 	.remove	= mipid_spi_remove,

drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c

···
 	.remove		= lb035q02_panel_spi_remove,
 	.driver		= {
 		.name	= "panel_lgphilips_lb035q02",
-		.owner	= THIS_MODULE,
 		.of_match_table = lb035q02_of_match,
 		.suppress_bind_attrs = true,
 	},

drivers/video/fbdev/omap2/displays-new/panel-nec-nl8048hl11.c

···
 static struct spi_driver nec_8048_driver = {
 	.driver = {
 		.name	= "panel-nec-nl8048hl11",
-		.owner	= THIS_MODULE,
 		.pm	= NEC_8048_PM_OPS,
 		.of_match_table = nec_8048_of_match,
 		.suppress_bind_attrs = true,

drivers/video/fbdev/omap2/displays-new/panel-sony-acx565akm.c

···
 static struct spi_driver acx565akm_driver = {
 	.driver = {
 		.name	= "acx565akm",
-		.owner	= THIS_MODULE,
 		.of_match_table = acx565akm_of_match,
 		.suppress_bind_attrs = true,
 	},

drivers/video/fbdev/omap2/displays-new/panel-tpo-td028ttec1.c

···
 
 	.driver         = {
 		.name   = "panel-tpo-td028ttec1",
-		.owner  = THIS_MODULE,
 		.of_match_table = td028ttec1_of_match,
 		.suppress_bind_attrs = true,
 	},

drivers/video/fbdev/omap2/displays-new/panel-tpo-td043mtea1.c

···
 static struct spi_driver tpo_td043_spi_driver = {
 	.driver = {
 		.name	= "panel-tpo-td043mtea1",
-		.owner	= THIS_MODULE,
 		.pm	= &tpo_td043_spi_pm,
 		.of_match_table = tpo_td043_of_match,
 		.suppress_bind_attrs = true,

include/linux/pxa2xx_ssp.h

···
 	LPSS_LPT_SSP, /* Keep LPSS types sorted with lpss_platforms[] */
 	LPSS_BYT_SSP,
 	LPSS_SPT_SSP,
+	LPSS_BXT_SSP,
 };
 
 struct ssp_device {

include/linux/spi/spi.h

···
  * @bytes_tx:      number of bytes sent to device
  * @bytes_rx:      number of bytes received from device
  *
+ * @transfer_bytes_histo:
+ *                 transfer bytes histogramm
  */
 struct spi_statistics {
 	spinlock_t		lock; /* lock for the whole structure */
···
 	unsigned long long	bytes_rx;
 	unsigned long long	bytes_tx;
 
+#define SPI_STATISTICS_HISTO_SIZE 17
+	unsigned long transfer_bytes_histo[SPI_STATISTICS_HISTO_SIZE];
 };
 
 void spi_statistics_add_transfer_stats(struct spi_statistics *stats,
···
 	return drv ? container_of(drv, struct spi_driver, driver) : NULL;
 }
 
-extern int spi_register_driver(struct spi_driver *sdrv);
+extern int __spi_register_driver(struct module *owner, struct spi_driver *sdrv);
 
 /**
  * spi_unregister_driver - reverse effect of spi_register_driver
···
 	if (sdrv)
 		driver_unregister(&sdrv->driver);
 }
+
+/* use a define to avoid include chaining to get THIS_MODULE */
+#define spi_register_driver(driver) \
+	__spi_register_driver(THIS_MODULE, driver)
 
 /**
  * module_spi_driver() - Helper macro for registering a SPI driver
···
  * @len: data buffer size
  * Context: can sleep
  *
- * This writes the buffer and returns zero or a negative error code.
+ * This function writes the buffer @buf.
  * Callable only from contexts that can sleep.
+ *
+ * Return: zero on success, else a negative error code.
  */
 static inline int
 spi_write(struct spi_device *spi, const void *buf, size_t len)
···
  * @len: data buffer size
  * Context: can sleep
  *
- * This reads the buffer and returns zero or a negative error code.
+ * This function reads the buffer @buf.
  * Callable only from contexts that can sleep.
+ *
+ * Return: zero on success, else a negative error code.
  */
 static inline int
 spi_read(struct spi_device *spi, void *buf, size_t len)
···
  *
  * For more specific semantics see spi_sync().
  *
- * It returns zero on success, else a negative error code.
+ * Return: Return: zero on success, else a negative error code.
  */
 static inline int
 spi_sync_transfer(struct spi_device *spi, struct spi_transfer *xfers,
···
  * @cmd: command to be written before data is read back
  * Context: can sleep
  *
- * This returns the (unsigned) eight bit number returned by the
- * device, or else a negative error code.  Callable only from
- * contexts that can sleep.
+ * Callable only from contexts that can sleep.
+ *
+ * Return: the (unsigned) eight bit number returned by the
+ * device, or else a negative error code.
  */
 static inline ssize_t spi_w8r8(struct spi_device *spi, u8 cmd)
 {
···
  * @cmd: command to be written before data is read back
  * Context: can sleep
  *
- * This returns the (unsigned) sixteen bit number returned by the
- * device, or else a negative error code.  Callable only from
- * contexts that can sleep.
- *
  * The number is returned in wire-order, which is at least sometimes
  * big-endian.
+ *
+ * Callable only from contexts that can sleep.
+ *
+ * Return: the (unsigned) sixteen bit number returned by the
+ * device, or else a negative error code.
  */
 static inline ssize_t spi_w8r16(struct spi_device *spi, u8 cmd)
 {
···
  * @cmd: command to be written before data is read back
  * Context: can sleep
  *
- * This returns the (unsigned) sixteen bit number returned by the device in cpu
- * endianness, or else a negative error code. Callable only from contexts that
- * can sleep.
- *
  * This function is similar to spi_w8r16, with the exception that it will
  * convert the read 16 bit data word from big-endian to native endianness.
  *
+ * Callable only from contexts that can sleep.
+ *
+ * Return: the (unsigned) sixteen bit number returned by the device in cpu
+ * endianness, or else a negative error code.
  */
 static inline ssize_t spi_w8r16be(struct spi_device *spi, u8 cmd)
 

include/linux/spi/spi_bitbang.h

···
 #include <linux/workqueue.h>
 
 struct spi_bitbang {
-	spinlock_t		lock;
+	struct mutex		lock;
 	u8			busy;
 	u8			use_dma;
 	u8			flags;		/* extra spi->mode support */

sound/soc/codecs/ad1836.c

···
 static struct spi_driver ad1836_spi_driver = {
 	.driver = {
 		.name	= "ad1836",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad1836_spi_probe,
 	.remove		= ad1836_spi_remove,

sound/soc/codecs/ad193x-spi.c

···
 static struct spi_driver ad193x_spi_driver = {
 	.driver = {
 		.name	= "ad193x",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ad193x_spi_probe,
 	.remove		= ad193x_spi_remove,

sound/soc/codecs/adau1761-spi.c

···
 static struct spi_driver adau1761_spi_driver = {
 	.driver = {
 		.name = "adau1761",
-		.owner = THIS_MODULE,
 	},
 	.probe = adau1761_spi_probe,
 	.remove = adau1761_spi_remove,

sound/soc/codecs/adau1781-spi.c

···
 static struct spi_driver adau1781_spi_driver = {
 	.driver = {
 		.name = "adau1781",
-		.owner = THIS_MODULE,
 	},
 	.probe = adau1781_spi_probe,
 	.remove = adau1781_spi_remove,

sound/soc/codecs/adau1977-spi.c

···
 static struct spi_driver adau1977_spi_driver = {
 	.driver = {
 		.name = "adau1977",
-		.owner = THIS_MODULE,
 	},
 	.probe = adau1977_spi_probe,
 	.remove = adau1977_spi_remove,

sound/soc/codecs/adav801.c

···
 static struct spi_driver adav80x_spi_driver = {
 	.driver = {
 		.name	= "adav801",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= adav80x_spi_probe,
 	.remove		= adav80x_spi_remove,

sound/soc/codecs/ak4104.c

···
 static struct spi_driver ak4104_spi_driver = {
 	.driver  = {
 		.name   = "ak4104",
-		.owner  = THIS_MODULE,
 		.of_match_table = ak4104_of_match,
 	},
 	.id_table = ak4104_id_table,

sound/soc/codecs/cs4271-spi.c

···
 static struct spi_driver cs4271_spi_driver = {
 	.driver = {
 		.name	= "cs4271",
-		.owner	= THIS_MODULE,
 		.of_match_table = of_match_ptr(cs4271_dt_ids),
 	},
 	.probe		= cs4271_spi_probe,

sound/soc/codecs/da7210.c

···
 static struct spi_driver da7210_spi_driver = {
 	.driver = {
 		.name = "da7210",
-		.owner = THIS_MODULE,
 	},
 	.probe = da7210_spi_probe,
 	.remove = da7210_spi_remove

sound/soc/codecs/pcm1792a.c

···
 static struct spi_driver pcm1792a_codec_driver = {
 	.driver = {
 		.name = "pcm1792a",
-		.owner = THIS_MODULE,
 		.of_match_table = of_match_ptr(pcm1792a_of_match),
 	},
 	.id_table = pcm1792a_spi_ids,

sound/soc/codecs/pcm512x-spi.c

···
 	.id_table	= pcm512x_spi_id,
 	.driver = {
 		.name	= "pcm512x",
-		.owner	= THIS_MODULE,
 		.of_match_table = pcm512x_of_match,
 		.pm     = &pcm512x_pm_ops,
 	},

sound/soc/codecs/rt5677-spi.c

···
 static struct spi_driver rt5677_spi_driver = {
 	.driver = {
 		.name = "rt5677",
-		.owner = THIS_MODULE,
 	},
 	.probe = rt5677_spi_probe,
 };

sound/soc/codecs/ssm2602-spi.c

···
 static struct spi_driver ssm2602_spi_driver = {
 	.driver = {
 		.name	= "ssm2602",
-		.owner	= THIS_MODULE,
 		.of_match_table = ssm2602_of_match,
 	},
 	.probe		= ssm2602_spi_probe,

sound/soc/codecs/tlv320aic23-spi.c

···
 static struct spi_driver aic23_spi = {
 	.driver = {
 		.name = "tlv320aic23",
-		.owner = THIS_MODULE,
 	},
 	.probe = aic23_spi_probe,
 	.remove = aic23_spi_remove,

sound/soc/codecs/tlv320aic26.c

···
 static struct spi_driver aic26_spi = {
 	.driver = {
 		.name = "tlv320aic26-codec",
-		.owner = THIS_MODULE,
 	},
 	.probe = aic26_spi_probe,
 	.remove = aic26_spi_remove,

sound/soc/codecs/wm0010.c

···
 static struct spi_driver wm0010_spi_driver = {
 	.driver = {
 		.name	= "wm0010",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= wm0010_spi_probe,
 	.remove		= wm0010_spi_remove,

sound/soc/codecs/wm8510.c

···
 static struct spi_driver wm8510_spi_driver = {
 	.driver = {
 		.name	= "wm8510",
-		.owner	= THIS_MODULE,
 		.of_match_table = wm8510_of_match,
 	},
 	.probe		= wm8510_spi_probe,

sound/soc/codecs/wm8711.c

···
 static struct spi_driver wm8711_spi_driver = {
 	.driver = {
 		.name	= "wm8711",
-		.owner	= THIS_MODULE,
 		.of_match_table = wm8711_of_match,
 	},
 	.probe		= wm8711_spi_probe,

sound/soc/codecs/wm8728.c

···
 static struct spi_driver wm8728_spi_driver = {
 	.driver = {
 		.name	= "wm8728",
-		.owner	= THIS_MODULE,
 		.of_match_table = wm8728_of_match,
 	},
 	.probe		= wm8728_spi_probe,

sound/soc/codecs/wm8731.c

···
 static struct spi_driver wm8731_spi_driver = {
 	.driver = {
 		.name	= "wm8731",
-		.owner	= THIS_MODULE,
 		.of_match_table = wm8731_of_match,
 	},
 	.probe		= wm8731_spi_probe,

sound/soc/codecs/wm8737.c

···
 static struct spi_driver wm8737_spi_driver = {
 	.driver = {
 		.name	= "wm8737",
-		.owner	= THIS_MODULE,
 		.of_match_table = wm8737_of_match,
 	},
 	.probe		= wm8737_spi_probe,

sound/soc/codecs/wm8741.c

···
 static struct spi_driver wm8741_spi_driver = {
 	.driver = {
 		.name	= "wm8741",
-		.owner	= THIS_MODULE,
 		.of_match_table = wm8741_of_match,
 	},
 	.probe		= wm8741_spi_probe,

sound/soc/codecs/wm8750.c

···
 static struct spi_driver wm8750_spi_driver = {
 	.driver = {
 		.name	= "wm8750",
-		.owner	= THIS_MODULE,
 		.of_match_table = wm8750_of_match,
 	},
 	.id_table	= wm8750_spi_ids,

sound/soc/codecs/wm8753.c

···
 static struct spi_driver wm8753_spi_driver = {
 	.driver = {
 		.name	= "wm8753",
-		.owner	= THIS_MODULE,
 		.of_match_table = wm8753_of_match,
 	},
 	.probe		= wm8753_spi_probe,

sound/soc/codecs/wm8770.c

···
 static struct spi_driver wm8770_spi_driver = {
 	.driver = {
 		.name = "wm8770",
-		.owner = THIS_MODULE,
 		.of_match_table = wm8770_of_match,
 	},
 	.probe = wm8770_spi_probe,

sound/soc/codecs/wm8776.c

···
 static struct spi_driver wm8776_spi_driver = {
 	.driver = {
 		.name	= "wm8776",
-		.owner	= THIS_MODULE,
 		.of_match_table = wm8776_of_match,
 	},
 	.probe		= wm8776_spi_probe,

sound/soc/codecs/wm8804-spi.c

···
 static struct spi_driver wm8804_spi_driver = {
 	.driver = {
 		.name = "wm8804",
-		.owner = THIS_MODULE,
 		.pm = &wm8804_pm,
 		.of_match_table = wm8804_of_match,
 	},

sound/soc/codecs/wm8900.c

···
 static struct spi_driver wm8900_spi_driver = {
 	.driver = {
 		.name	= "wm8900",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= wm8900_spi_probe,
 	.remove		= wm8900_spi_remove,

sound/soc/codecs/wm8983.c

···
 static struct spi_driver wm8983_spi_driver = {
 	.driver = {
 		.name = "wm8983",
-		.owner = THIS_MODULE,
 	},
 	.probe = wm8983_spi_probe,
 	.remove = wm8983_spi_remove

sound/soc/codecs/wm8985.c

···
 static struct spi_driver wm8985_spi_driver = {
 	.driver = {
 		.name = "wm8985",
-		.owner = THIS_MODULE,
 	},
 	.probe = wm8985_spi_probe,
 	.remove = wm8985_spi_remove

sound/soc/codecs/wm8988.c

···
 static struct spi_driver wm8988_spi_driver = {
 	.driver = {
 		.name	= "wm8988",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= wm8988_spi_probe,
 	.remove		= wm8988_spi_remove,

sound/soc/codecs/wm8995.c

···
 static struct spi_driver wm8995_spi_driver = {
 	.driver = {
 		.name = "wm8995",
-		.owner = THIS_MODULE,
 	},
 	.probe = wm8995_spi_probe,
 	.remove = wm8995_spi_remove