Merge tag 'i2c-for-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:
"I2C has mainly cleanups this time and a few driver improvements.

Because a lot of developers were on holidays (including myself) it was
a good timing to apply lots of cleanups which would normally cause
merge conflicts with other floating patches. Extra thanks go to Andi
Shyti who backed me up when I was on a four week hiatus. This is also
the reason that some patches were commited later than ideal"

* tag 'i2c-for-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (67 commits)
i2c: at91: Use dev_err_probe() instead of dev_err()
I2C: ali15x3: Do PCI error checks on own line
i2c: Make return value check more accurate and explicit for devm_pinctrl_get()
i2c: designware: Add support for recovery when GPIO need pinctrl
i2c: mlxcpld: Add support for extended transaction length
i2c: mlxcpld: Allow driver to run on ARM64 architecture
i2c: nforce2: Do PCI error check on own line
i2c: sis5595: Do PCI error checks on own line
i2c: qcom-cci: Fix error checking in cci_probe()
i2c: muxes: pca954x: Add regulator support
i2c: muxes: pca954x: Add MAX735x/MAX736x support
dt-bindings: i2c: Add Maxim MAX735x/MAX736x variants
dt-bindings: i2c: pca954x: Correct interrupt support
i2c: pnx: Use devm_platform_get_and_ioremap_resource()
i2c: pxa: Use devm_platform_get_and_ioremap_resource()
i2c: s3c2410: Use devm_platform_get_and_ioremap_resource()
i2c: sh_mobile: Use devm_platform_get_and_ioremap_resource()
i2c: st: Use devm_platform_get_and_ioremap_resource()
i2c: qcom-geni: Convert to devm_platform_ioremap_resource()
i2c: stm32f4: Use devm_platform_get_and_ioremap_resource()
...

Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml

···
     default: 16
     enum: [2, 4, 8, 16, 32, 64, 128, 256]
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg

Documentation/devicetree/bindings/i2c/i2c-arb-gpio-challenge.txt

···
-GPIO-based I2C Arbitration Using a Challenge & Response Mechanism
-=================================================================
-This uses GPIO lines and a challenge & response mechanism to arbitrate who is
-the master of an I2C bus in a multimaster situation.
-
-In many cases using GPIOs to arbitrate is not needed and a design can use
-the standard I2C multi-master rules.  Using GPIOs is generally useful in
-the case where there is a device on the bus that has errata and/or bugs
-that makes standard multimaster mode not feasible.
-
-Note that this scheme works well enough but has some downsides:
-* It is nonstandard (not using standard I2C multimaster)
-* Having two masters on a bus in general makes it relatively hard to debug
-  problems (hard to tell if i2c issues were caused by one master, another, or
-  some device on the bus).
-
-
-Algorithm:
-
-All masters on the bus have a 'bus claim' line which is an output that the
-others can see. These are all active low with pull-ups enabled.  We'll
-describe these lines as:
-
-- OUR_CLAIM: output from us signaling to other hosts that we want the bus
-- THEIR_CLAIMS: output from others signaling that they want the bus
-
-The basic algorithm is to assert your line when you want the bus, then make
-sure that the other side doesn't want it also.  A detailed explanation is best
-done with an example.
-
-Let's say we want to claim the bus.  We:
-1. Assert OUR_CLAIM.
-2. Waits a little bit for the other sides to notice (slew time, say 10
-   microseconds).
-3. Check THEIR_CLAIMS.  If none are asserted then the we have the bus and we are
-   done.
-4. Otherwise, wait for a few milliseconds and see if THEIR_CLAIMS are released.
-5. If not, back off, release the claim and wait for a few more milliseconds.
-6. Go back to 1 (until retry time has expired).
-
-
-Required properties:
-- compatible: i2c-arb-gpio-challenge
-- our-claim-gpio: The GPIO that we use to claim the bus.
-- their-claim-gpios: The GPIOs that the other sides use to claim the bus.
-  Note that some implementations may only support a single other master.
-- I2C arbitration bus node. See i2c-arb.txt in this directory.
-
-Optional properties:
-- slew-delay-us: microseconds to wait for a GPIO to go high. Default is 10 us.
-- wait-retry-us: we'll attempt another claim after this many microseconds.
-    Default is 3000 us.
-- wait-free-us: we'll give up after this many microseconds. Default is 50000 us.
-
-
-Example:
-	i2c@12ca0000 {
-		compatible = "acme,some-i2c-device";
-		#address-cells = <1>;
-		#size-cells = <0>;
-	};
-
-	i2c-arbitrator {
-		compatible = "i2c-arb-gpio-challenge";
-
-		i2c-parent = <&{/i2c@12CA0000}>;
-
-		our-claim-gpio = <&gpf0 3 1>;
-		their-claim-gpios = <&gpe0 4 1>;
-		slew-delay-us = <10>;
-		wait-retry-us = <3000>;
-		wait-free-us = <50000>;
-
-		i2c-arb {
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			i2c@52 {
-				// Normal I2C device
-			};
-		};
-	};

Documentation/devicetree/bindings/i2c/i2c-arb-gpio-challenge.yaml

···
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/i2c-arb-gpio-challenge.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GPIO-based I2C Arbitration Using a Challenge & Response Mechanism
+
+maintainers:
+  - Doug Anderson <[e-mail]>
+  - Peter Rosin <[e-mail]>
+
+description: |
+  This uses GPIO lines and a challenge & response mechanism to arbitrate who is
+  the master of an I2C bus in a multimaster situation.
+
+  In many cases using GPIOs to arbitrate is not needed and a design can use the
+  standard I2C multi-master rules.  Using GPIOs is generally useful in the case
+  where there is a device on the bus that has errata and/or bugs that makes
+  standard multimaster mode not feasible.
+
+  Note that this scheme works well enough but has some downsides:
+   * It is nonstandard (not using standard I2C multimaster)
+   * Having two masters on a bus in general makes it relatively hard to debug
+     problems (hard to tell if i2c issues were caused by one master, another,
+     or some device on the bus).
+
+  Algorithm:
+  All masters on the bus have a 'bus claim' line which is an output that the
+  others can see. These are all active low with pull-ups enabled.  We'll
+  describe these lines as:
+   * OUR_CLAIM: output from us signaling to other hosts that we want the bus
+   * THEIR_CLAIMS: output from others signaling that they want the bus
+
+  The basic algorithm is to assert your line when you want the bus, then make
+  sure that the other side doesn't want it also.  A detailed explanation is
+  best done with an example.
+
+  Let's say we want to claim the bus.  We:
+  1. Assert OUR_CLAIM.
+  2. Waits a little bit for the other sides to notice (slew time, say 10
+     microseconds).
+  3. Check THEIR_CLAIMS.  If none are asserted then the we have the bus and we
+     are done.
+  4. Otherwise, wait for a few milliseconds and see if THEIR_CLAIMS are released.
+  5. If not, back off, release the claim and wait for a few more milliseconds.
+  6. Go back to 1 (until retry time has expired).
+
+properties:
+  compatible:
+    const: i2c-arb-gpio-challenge
+
+  i2c-parent:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      The I2C bus that this multiplexer's master-side port is connected to.
+
+  our-claim-gpios:
+    maxItems: 1
+    description:
+      The GPIO that we use to claim the bus.
+
+  slew-delay-us:
+    default: 10
+    description:
+      Time to wait for a GPIO to go high.
+
+  their-claim-gpios:
+    minItems: 1
+    maxItems: 8
+    description:
+      The GPIOs that the other sides use to claim the bus.  Note that some
+      implementations may only support a single other master.
+
+  wait-free-us:
+    default: 50000
+    description:
+      We'll give up after this many microseconds.
+
+  wait-retry-us:
+    default: 3000
+    description:
+      We'll attempt another claim after this many microseconds.
+
+  i2c-arb:
+    type: object
+    $ref: /schemas/i2c/i2c-controller.yaml
+    unevaluatedProperties: false
+    description:
+      I2C arbitration bus node.
+
+required:
+  - compatible
+  - i2c-arb
+  - our-claim-gpios
+  - their-claim-gpios
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c-arbitrator {
+        compatible = "i2c-arb-gpio-challenge";
+        i2c-parent = <&i2c_4>;
+
+        our-claim-gpios = <&gpf0 3 GPIO_ACTIVE_LOW>;
+        their-claim-gpios = <&gpe0 4 GPIO_ACTIVE_LOW>;
+        slew-delay-us = <10>;
+        wait-retry-us = <3000>;
+        wait-free-us = <50000>;
+
+        i2c-arb {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            sbs-battery@b {
+                compatible = "sbs,sbs-battery";
+                reg = <0xb>;
+                sbs,poll-retry-count = <1>;
+            };
+
+            embedded-controller@1e {
+                compatible = "google,cros-ec-i2c";
+                reg = <0x1e>;
+                interrupts = <6 IRQ_TYPE_LEVEL_HIGH>;
+                interrupt-parent = <&gpx1>;
+                pinctrl-names = "default";
+                pinctrl-0 = <&ec_irq>;
+                wakeup-source;
+            };
+        };
+    };

Documentation/devicetree/bindings/i2c/i2c-arb.txt

···
-Common i2c arbitration bus properties.
-
-- i2c-arb child node
-
-Required properties for the i2c-arb child node:
-- #address-cells = <1>;
-- #size-cells = <0>;
-
-Optional properties for i2c-arb child node:
-- Child nodes conforming to i2c bus binding
-
-
-Example :
-
-	/*
-	   An NXP pca9541 I2C bus master selector at address 0x74
-	   with a NXP pca8574 GPIO expander attached.
-	 */
-
-	arb@74 {
-		compatible = "nxp,pca9541";
-		reg = <0x74>;
-
-		i2c-arb {
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			gpio@38 {
-				compatible = "nxp,pca8574";
-				reg = <0x38>;
-				#gpio-cells = <2>;
-				gpio-controller;
-			};
-		};
-	};

Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml

···
 $id: http://devicetree.org/schemas/i2c/i2c-mux-pca954x.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: NXP PCA954x I2C bus switch
+title: NXP PCA954x I2C and compatible bus switches
 
 maintainers:
   - Laurent Pinchart <[e-mail]>
 
 description:
-  The binding supports NXP PCA954x and PCA984x I2C mux/switch devices.
-
-allOf:
-  - $ref: /schemas/i2c/i2c-mux.yaml#
+  The NXP PCA954x and compatible devices are I2C bus
+  multiplexer/switches that share the same functionality
+  and register layout.
+  The devices usually have 4 or 8 child buses, which are
+  attached to the parent bus by using the SMBus "Send Byte"
+  command.
 
 properties:
   compatible:
     oneOf:
       - enum:
+          - maxim,max7356
+          - maxim,max7357
+          - maxim,max7358
+          - maxim,max7367
+          - maxim,max7368
+          - maxim,max7369
           - nxp,pca9540
           - nxp,pca9542
           - nxp,pca9543
···
     description: if present, overrides i2c-mux-idle-disconnect
     $ref: /schemas/mux/mux-controller.yaml#/properties/idle-state
 
+  vdd-supply:
+    description: A voltage regulator supplying power to the chip. On PCA9846
+      the regulator supplies power to VDD2 (core logic) and optionally to VDD1.
+
 required:
   - compatible
   - reg
+
+allOf:
+  - $ref: /schemas/i2c/i2c-mux.yaml#
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - maxim,max7367
+                - maxim,max7369
+                - nxp,pca9542
+                - nxp,pca9543
+                - nxp,pca9544
+                - nxp,pca9545
+    then:
+      properties:
+        interrupts: false
+        "#interrupt-cells": false
+        interrupt-controller: false
 
 unevaluatedProperties: false
 
···
         #size-cells = <0>;
 
         i2c-mux@74 {
-            compatible = "nxp,pca9548";
+            compatible = "nxp,pca9545";
             #address-cells = <1>;
             #size-cells = <0>;
             reg = <0x74>;
+
+            vdd-supply = <&p3v3>;
 
             interrupt-parent = <&ipic>;
             interrupts = <17 IRQ_TYPE_LEVEL_LOW>;

Documentation/devicetree/bindings/i2c/nxp,pca9541.txt

···
-* NXP PCA9541 I2C bus master selector
-
-Required Properties:
-
-  - compatible: Must be "nxp,pca9541"
-
-  - reg: The I2C address of the device.
-
-  The following required properties are defined externally:
-
-  - I2C arbitration bus node. See i2c-arb.txt in this directory.
-
-
-Example:
-
-	i2c-arbitrator@74 {
-		compatible = "nxp,pca9541";
-		reg = <0x74>;
-
-		i2c-arb {
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			eeprom@54 {
-				compatible = "atmel,24c08";
-				reg = <0x54>;
-			};
-		};
-	};

Documentation/devicetree/bindings/i2c/nxp,pca9541.yaml

···
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/nxp,pca9541.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP PCA9541 I2C bus master selector
+
+maintainers:
+  - Peter Rosin <[e-mail]>
+
+properties:
+  compatible:
+    const: nxp,pca9541
+
+  reg:
+    maxItems: 1
+
+  i2c-arb:
+    type: object
+    $ref: /schemas/i2c/i2c-controller.yaml
+    unevaluatedProperties: false
+    description:
+      I2C arbitration bus node.
+
+required:
+  - compatible
+  - reg
+  - i2c-arb
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        i2c-arbitrator@74 {
+            compatible = "nxp,pca9541";
+            reg = <0x74>;
+
+            i2c-arb {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                eeprom@54 {
+                    compatible = "atmel,24c08";
+                    reg = <0x54>;
+                };
+            };
+        };
+    };

drivers/i2c/busses/Kconfig

···
 
 config I2C_MLXCPLD
 	tristate "Mellanox I2C driver"
-	depends on X86_64 || COMPILE_TEST
+	depends on X86_64 || ARM64 || COMPILE_TEST
 	help
 	  This exposes the Mellanox platform I2C busses to the linux I2C layer
 	  for X86 based systems.

drivers/i2c/busses/i2c-ali15x3.c

···
 	}
 
 	if(force_addr) {
+		int ret;
+
 		dev_info(&ALI15X3_dev->dev, "forcing ISA address 0x%04X\n",
 			ali15x3_smba);
-		if (PCIBIOS_SUCCESSFUL != pci_write_config_word(ALI15X3_dev,
-								SMBBA,
-								ali15x3_smba))
+		ret = pci_write_config_word(ALI15X3_dev, SMBBA, ali15x3_smba);
+		if (ret != PCIBIOS_SUCCESSFUL)
 			goto error;
-		if (PCIBIOS_SUCCESSFUL != pci_read_config_word(ALI15X3_dev,
-								SMBBA, &a))
+		ret = pci_read_config_word(ALI15X3_dev, SMBBA, &a);
+		if (ret != PCIBIOS_SUCCESSFUL)
 			goto error;
 		if ((a & ~(ALI15X3_SMB_IOSIZE - 1)) != ali15x3_smba) {
 			/* make sure it works */

drivers/i2c/busses/i2c-at91-core.c

···
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/pinctrl/consumer.h>
···
 
 	dev->dev = &pdev->dev;
 
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!mem)
-		return -ENODEV;
+	dev->base = devm_platform_get_and_ioremap_resource(pdev, 0, &mem);
+	if (IS_ERR(dev->base))
+		return PTR_ERR(dev->base);
 	phy_addr = mem->start;
 
 	dev->pdata = at91_twi_get_driver_data(pdev);
 	if (!dev->pdata)
 		return -ENODEV;
-
-	dev->base = devm_ioremap_resource(&pdev->dev, mem);
-	if (IS_ERR(dev->base))
-		return PTR_ERR(dev->base);
 
 	dev->irq = platform_get_irq(pdev, 0);
 	if (dev->irq < 0)
···
 	platform_set_drvdata(pdev, dev);
 
 	dev->clk = devm_clk_get(dev->dev, NULL);
-	if (IS_ERR(dev->clk)) {
-		dev_err(dev->dev, "no clock defined\n");
-		return -ENODEV;
-	}
+	if (IS_ERR(dev->clk))
+		return dev_err_probe(dev->dev, PTR_ERR(dev->clk), "no clock defined\n");
+
 	clk_prepare_enable(dev->clk);
 
 	snprintf(dev->adapter.name, sizeof(dev->adapter.name), "AT91");

drivers/i2c/busses/i2c-at91-master.c

···
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
···
 	struct i2c_bus_recovery_info *rinfo = &dev->rinfo;
 
 	rinfo->pinctrl = devm_pinctrl_get(&pdev->dev);
-	if (!rinfo->pinctrl || IS_ERR(rinfo->pinctrl)) {
+	if (!rinfo->pinctrl) {
+		dev_info(dev->dev, "pinctrl unavailable, bus recovery not supported\n");
+		return 0;
+	}
+	if (IS_ERR(rinfo->pinctrl)) {
 		dev_info(dev->dev, "can't get pinctrl, bus recovery not supported\n");
 		return PTR_ERR(rinfo->pinctrl);
 	}

drivers/i2c/busses/i2c-au1550.c

···
 	i2c_au1550_disable(priv);
 }
 
-#ifdef CONFIG_PM
 static int i2c_au1550_suspend(struct device *dev)
 {
 	struct i2c_au1550_data *priv = dev_get_drvdata(dev);
···
 	return 0;
 }
 
-static const struct dev_pm_ops i2c_au1550_pmops = {
-	.suspend	= i2c_au1550_suspend,
-	.resume		= i2c_au1550_resume,
-};
-
-#define AU1XPSC_SMBUS_PMOPS (&i2c_au1550_pmops)
-
-#else
-#define AU1XPSC_SMBUS_PMOPS NULL
-#endif
+static DEFINE_SIMPLE_DEV_PM_OPS(i2c_au1550_pmops,
+				i2c_au1550_suspend, i2c_au1550_resume);
 
 static struct platform_driver au1xpsc_smbus_driver = {
 	.driver = {
 		.name	= "au1xpsc_smbus",
-		.pm	= AU1XPSC_SMBUS_PMOPS,
+		.pm	= pm_sleep_ptr(&i2c_au1550_pmops),
 	},
 	.probe		= i2c_au1550_probe,
 	.remove_new	= i2c_au1550_remove,

drivers/i2c/busses/i2c-bcm-iproc.c

···
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 
···
 	int irq, ret = 0;
 	struct bcm_iproc_i2c_dev *iproc_i2c;
 	struct i2c_adapter *adap;
-	struct resource *res;
 
 	iproc_i2c = devm_kzalloc(&pdev->dev, sizeof(*iproc_i2c),
 				 GFP_KERNEL);
···
 		(enum bcm_iproc_i2c_type)of_device_get_match_data(&pdev->dev);
 	init_completion(&iproc_i2c->done);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	iproc_i2c->base = devm_ioremap_resource(iproc_i2c->device, res);
+	iproc_i2c->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(iproc_i2c->base))
 		return PTR_ERR(iproc_i2c->base);
 
 	if (iproc_i2c->type == IPROC_I2C_NIC) {
-		res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-		iproc_i2c->idm_base = devm_ioremap_resource(iproc_i2c->device,
-							    res);
+		iproc_i2c->idm_base = devm_platform_ioremap_resource(pdev, 1);
 		if (IS_ERR(iproc_i2c->idm_base))
 			return PTR_ERR(iproc_i2c->idm_base);
 
···
 	bcm_iproc_i2c_enable_disable(iproc_i2c, false);
 }
 
-#ifdef CONFIG_PM_SLEEP
-
 static int bcm_iproc_i2c_suspend(struct device *dev)
 {
 	struct bcm_iproc_i2c_dev *iproc_i2c = dev_get_drvdata(dev);
···
 	.suspend_late = &bcm_iproc_i2c_suspend,
 	.resume_early = &bcm_iproc_i2c_resume
 };
-
-#define BCM_IPROC_I2C_PM_OPS (&bcm_iproc_i2c_pm_ops)
-#else
-#define BCM_IPROC_I2C_PM_OPS NULL
-#endif /* CONFIG_PM_SLEEP */
-
 
 static int bcm_iproc_i2c_reg_slave(struct i2c_client *slave)
 {
···
 	.driver = {
 		.name = "bcm-iproc-i2c",
 		.of_match_table = bcm_iproc_i2c_of_match,
-		.pm = BCM_IPROC_I2C_PM_OPS,
+		.pm = pm_sleep_ptr(&bcm_iproc_i2c_pm_ops),
 	},
 	.probe = bcm_iproc_i2c_probe,
 	.remove_new = bcm_iproc_i2c_remove,

drivers/i2c/busses/i2c-bcm2835.c

···
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 
···
 
 	i2c_dev->bus_clk = bcm2835_i2c_register_div(&pdev->dev, mclk, i2c_dev);
 
-	if (IS_ERR(i2c_dev->bus_clk)) {
-		dev_err(&pdev->dev, "Could not register clock\n");
-		return PTR_ERR(i2c_dev->bus_clk);
-	}
+	if (IS_ERR(i2c_dev->bus_clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(i2c_dev->bus_clk),
+				     "Could not register clock\n");
 
 	ret = of_property_read_u32(pdev->dev.of_node, "clock-frequency",
 				   &bus_clk_rate);
···
 	}
 
 	ret = clk_set_rate_exclusive(i2c_dev->bus_clk, bus_clk_rate);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "Could not set clock frequency\n");
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(&pdev->dev, ret,
+				     "Could not set clock frequency\n");
 
 	ret = clk_prepare_enable(i2c_dev->bus_clk);
 	if (ret) {

drivers/i2c/busses/i2c-brcmstb.c

···
 
 static int brcmstb_i2c_probe(struct platform_device *pdev)
 {
-	int rc = 0;
 	struct brcmstb_i2c_dev *dev;
 	struct i2c_adapter *adap;
-	struct resource *iomem;
 	const char *int_name;
+	int rc;
 
 	/* Allocate memory for private data structure */
 	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
···
 	init_completion(&dev->done);
 
 	/* Map hardware registers */
-	iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	dev->base = devm_ioremap_resource(dev->device, iomem);
-	if (IS_ERR(dev->base)) {
-		rc = -ENOMEM;
-		goto probe_errorout;
-	}
+	dev->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(dev->base))
+		return PTR_ERR(dev->base);
 
 	if (of_device_is_compatible(dev->device->of_node,
 				    "brcm,bcm2711-hdmi-i2c")) {
 		rc = bcm2711_release_bsc(dev);
 		if (rc)
-			goto probe_errorout;
+			return rc;
 	}
 
 	rc = of_property_read_string(dev->device->of_node, "interrupt-names",
···
 	adap->dev.of_node = pdev->dev.of_node;
 	rc = i2c_add_adapter(adap);
 	if (rc)
-		goto probe_errorout;
+		return rc;
 
 	dev_info(dev->device, "%s@%dhz registered in %s mode\n",
 		 int_name ? int_name : " ", dev->clk_freq_hz,
 		 (dev->irq >= 0) ? "interrupt" : "polling");
 
 	return 0;
-
-probe_errorout:
-	return rc;
 }
 
 static void brcmstb_i2c_remove(struct platform_device *pdev)
···
 	i2c_del_adapter(&dev->adapter);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int brcmstb_i2c_suspend(struct device *dev)
 {
 	struct brcmstb_i2c_dev *i2c_dev = dev_get_drvdata(dev);
···
 
 	return 0;
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(brcmstb_i2c_pm, brcmstb_i2c_suspend,
-			 brcmstb_i2c_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(brcmstb_i2c_pm, brcmstb_i2c_suspend,
+				brcmstb_i2c_resume);
 
 static const struct of_device_id brcmstb_i2c_of_match[] = {
 	{.compatible = "brcm,brcmstb-i2c"},
···
 	.driver = {
 		   .name = "brcmstb-i2c",
 		   .of_match_table = brcmstb_i2c_of_match,
-		   .pm = &brcmstb_i2c_pm,
+		   .pm = pm_sleep_ptr(&brcmstb_i2c_pm),
 		   },
 	.probe = brcmstb_i2c_probe,
 	.remove_new = brcmstb_i2c_remove,

drivers/i2c/busses/i2c-cpm.c

···
 #include <linux/i2c.h>
 #include <linux/io.h>
 #include <linux/dma-mapping.h>
+#include <linux/of.h>
 #include <linux/of_address.h>
-#include <linux/of_device.h>
 #include <linux/of_irq.h>
-#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <sysdev/fsl_soc.h>
 #include <asm/cpm.h>
 

drivers/i2c/busses/i2c-davinci.c

···
 #include <linux/slab.h>
 #include <linux/cpufreq.h>
 #include <linux/gpio/consumer.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/platform_data/i2c-davinci.h>
 #include <linux/pm_runtime.h>
 
···
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
-		return dev_err_probe(&pdev->dev, irq, "can't get irq resource\n");
+		return irq;
 
 	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
 	if (!dev)
···
 	pm_runtime_disable(dev->dev);
 }
 
-#ifdef CONFIG_PM
 static int davinci_i2c_suspend(struct device *dev)
 {
 	struct davinci_i2c_dev *i2c_dev = dev_get_drvdata(dev);
···
 static const struct dev_pm_ops davinci_i2c_pm = {
 	.suspend        = davinci_i2c_suspend,
 	.resume         = davinci_i2c_resume,
-	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
-				      pm_runtime_force_resume)
+	NOIRQ_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				  pm_runtime_force_resume)
 };
-
-#define davinci_i2c_pm_ops (&davinci_i2c_pm)
-#else
-#define davinci_i2c_pm_ops NULL
-#endif
 
 static const struct platform_device_id davinci_i2c_driver_ids[] = {
 	{ .name = "i2c_davinci", },
···
 	.id_table	= davinci_i2c_driver_ids,
 	.driver		= {
 		.name	= "i2c_davinci",
-		.pm	= davinci_i2c_pm_ops,
+		.pm	= pm_sleep_ptr(&davinci_i2c_pm),
 		.of_match_table = davinci_i2c_of_match,
 	},
 };

drivers/i2c/busses/i2c-designware-master.c

···
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/module.h>
+#include <linux/pinctrl/consumer.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
 #include <linux/reset.h>
···
 	if (IS_ERR(gpio))
 		return PTR_ERR(gpio);
 	rinfo->sda_gpiod = gpio;
+
+	rinfo->pinctrl = devm_pinctrl_get(dev->dev);
+	if (IS_ERR(rinfo->pinctrl)) {
+		if (PTR_ERR(rinfo->pinctrl) == -EPROBE_DEFER)
+			return PTR_ERR(rinfo->pinctrl);
+
+		rinfo->pinctrl = NULL;
+		dev_err(dev->dev, "getting pinctrl info failed: bus recovery might not work\n");
+	} else if (!rinfo->pinctrl) {
+		dev_dbg(dev->dev, "pinctrl is disabled, bus recovery might not work\n");
+	}
 
 	rinfo->recover_bus = i2c_generic_scl_recovery;
 	rinfo->prepare_recovery = i2c_dw_prepare_recovery;

drivers/i2c/busses/i2c-designware-platdrv.c

···
 	reset_control_assert(dev->rst);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int dw_i2c_plat_prepare(struct device *dev)
 {
 	/*
···
 	 */
 	return !has_acpi_companion(dev);
 }
-#else
-#define dw_i2c_plat_prepare	NULL
-#endif
 
-#ifdef CONFIG_PM
 static int dw_i2c_plat_runtime_suspend(struct device *dev)
 {
 	struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);
···
 	return 0;
 }
 
-static int __maybe_unused dw_i2c_plat_suspend(struct device *dev)
+static int dw_i2c_plat_suspend(struct device *dev)
 {
 	struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);
 
···
 	return 0;
 }
 
-static int __maybe_unused dw_i2c_plat_resume(struct device *dev)
+static int dw_i2c_plat_resume(struct device *dev)
 {
 	struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);
 
···
 }
 
 static const struct dev_pm_ops dw_i2c_dev_pm_ops = {
-	.prepare = dw_i2c_plat_prepare,
-	SET_LATE_SYSTEM_SLEEP_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume)
-	SET_RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend, dw_i2c_plat_runtime_resume, NULL)
+	.prepare = pm_sleep_ptr(dw_i2c_plat_prepare),
+	LATE_SYSTEM_SLEEP_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume)
+	RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend, dw_i2c_plat_runtime_resume, NULL)
 };
-
-#define DW_I2C_DEV_PMOPS (&dw_i2c_dev_pm_ops)
-#else
-#define DW_I2C_DEV_PMOPS NULL
-#endif
 
 /* Work with hotplug and coldplug */
 MODULE_ALIAS("platform:i2c_designware");
···
 		.name	= "i2c_designware",
 		.of_match_table = of_match_ptr(dw_i2c_of_match),
 		.acpi_match_table = ACPI_PTR(dw_i2c_acpi_match),
-		.pm	= DW_I2C_DEV_PMOPS,
+		.pm	= pm_ptr(&dw_i2c_dev_pm_ops),
 	},
 };
 

drivers/i2c/busses/i2c-dln2.c

···
 
 	/* initialize the i2c interface */
 	ret = dln2_i2c_enable(dln2, true);
-	if (ret < 0) {
-		dev_err(dev, "failed to initialize adapter: %d\n", ret);
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "failed to initialize adapter\n");
 
 	/* and finally attach to i2c layer */
 	ret = i2c_add_adapter(&dln2->adapter);

drivers/i2c/busses/i2c-emev2.c

···
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/sched.h>
 

drivers/i2c/busses/i2c-exynos5.c

···
 #include <linux/clk.h>
 #include <linux/slab.h>
 #include <linux/io.h>
-#include <linux/of_address.h>
-#include <linux/of_device.h>
-#include <linux/of_irq.h>
+#include <linux/of.h>
 #include <linux/spinlock.h>
 
 /*
···
 	clk_unprepare(i2c->pclk);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int exynos5_i2c_suspend_noirq(struct device *dev)
 {
 	struct exynos5_i2c *i2c = dev_get_drvdata(dev);
···
 	clk_disable_unprepare(i2c->pclk);
 	return ret;
 }
-#endif
 
 static const struct dev_pm_ops exynos5_i2c_dev_pm_ops = {
-	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(exynos5_i2c_suspend_noirq,
-				      exynos5_i2c_resume_noirq)
+	NOIRQ_SYSTEM_SLEEP_PM_OPS(exynos5_i2c_suspend_noirq,
+				  exynos5_i2c_resume_noirq)
 };
 
 static struct platform_driver exynos5_i2c_driver = {
···
 	.remove_new	= exynos5_i2c_remove,
 	.driver		= {
 		.name	= "exynos5-hsi2c",
-		.pm	= &exynos5_i2c_dev_pm_ops,
+		.pm	= pm_sleep_ptr(&exynos5_i2c_dev_pm_ops),
 		.of_match_table = exynos5_i2c_match,
 	},
 };

drivers/i2c/busses/i2c-gxp.c

···
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/i2c.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/platform_device.h>
 #include <linux/regmap.h>
 #include <linux/mfd/syscon.h>
 

drivers/i2c/busses/i2c-hisi.c

···
 	hisi_i2c_disable_int(ctlr, HISI_I2C_INT_ALL);
 
 	ret = devm_request_irq(dev, ctlr->irq, hisi_i2c_irq, 0, "hisi-i2c", ctlr);
-	if (ret) {
-		dev_err(dev, "failed to request irq handler, ret = %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to request irq handler\n");
 
 	ctlr->clk = devm_clk_get_optional_enabled(&pdev->dev, NULL);
 	if (IS_ERR_OR_NULL(ctlr->clk)) {
 		ret = device_property_read_u64(dev, "clk_rate", &clk_rate_hz);
-		if (ret) {
-			dev_err(dev, "failed to get clock frequency, ret = %d\n", ret);
-			return ret;
-		}
+		if (ret)
+			return dev_err_probe(dev, ret, "failed to get clock frequency\n");
 	} else {
 		clk_rate_hz = clk_get_rate(ctlr->clk);
 	}

drivers/i2c/busses/i2c-hix5hd2.c

···
 	pm_runtime_set_suspended(priv->dev);
 }
 
-#ifdef CONFIG_PM
 static int hix5hd2_i2c_runtime_suspend(struct device *dev)
 {
 	struct hix5hd2_i2c_priv *priv = dev_get_drvdata(dev);
···
 
 	return 0;
 }
-#endif
 
 static const struct dev_pm_ops hix5hd2_i2c_pm_ops = {
-	SET_RUNTIME_PM_OPS(hix5hd2_i2c_runtime_suspend,
-			      hix5hd2_i2c_runtime_resume,
-			      NULL)
+	RUNTIME_PM_OPS(hix5hd2_i2c_runtime_suspend,
+		       hix5hd2_i2c_runtime_resume,
+		       NULL)
 };
 
 static const struct of_device_id hix5hd2_i2c_match[] = {
···
 	.remove_new	= hix5hd2_i2c_remove,
 	.driver		= {
 		.name	= "hix5hd2-i2c",
-		.pm	= &hix5hd2_i2c_pm_ops,
+		.pm	= pm_ptr(&hix5hd2_i2c_pm_ops),
 		.of_match_table = hix5hd2_i2c_match,
 	},
 };

drivers/i2c/busses/i2c-i801.c

···
 	pci_write_config_byte(dev, SMBHSTCFG, priv->original_hstcfg);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int i801_suspend(struct device *dev)
 {
 	struct i801_priv *priv = dev_get_drvdata(dev);
···
 
 	return 0;
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(i801_pm_ops, i801_suspend, i801_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(i801_pm_ops, i801_suspend, i801_resume);
 
 static struct pci_driver i801_driver = {
 	.name		= DRV_NAME,
···
 	.remove		= i801_remove,
 	.shutdown	= i801_shutdown,
 	.driver		= {
-		.pm	= &i801_pm_ops,
+		.pm	= pm_sleep_ptr(&i801_pm_ops),
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };

drivers/i2c/busses/i2c-ibm_iic.c

···
 #include <asm/irq.h>
 #include <linux/io.h>
 #include <linux/i2c.h>
+#include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
-#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 
 #include "i2c-ibm_iic.h"
 

drivers/i2c/busses/i2c-img-scb.c

···
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int img_i2c_suspend(struct device *dev)
 {
 	struct img_i2c *i2c = dev_get_drvdata(dev);
···
 
 	return 0;
 }
-#endif /* CONFIG_PM_SLEEP */
 
 static const struct dev_pm_ops img_i2c_pm = {
-	SET_RUNTIME_PM_OPS(img_i2c_runtime_suspend,
-			   img_i2c_runtime_resume,
-			   NULL)
-	SET_SYSTEM_SLEEP_PM_OPS(img_i2c_suspend, img_i2c_resume)
+	RUNTIME_PM_OPS(img_i2c_runtime_suspend, img_i2c_runtime_resume, NULL)
+	SYSTEM_SLEEP_PM_OPS(img_i2c_suspend, img_i2c_resume)
 };
 
 static const struct of_device_id img_scb_i2c_match[] = {
···
 	.driver = {
 		.name		= "img-i2c-scb",
 		.of_match_table	= img_scb_i2c_match,
-		.pm		= &img_i2c_pm,
+		.pm		= pm_ptr(&img_i2c_pm),
 	},
 	.probe = img_i2c_probe,
 	.remove_new = img_i2c_remove,

drivers/i2c/busses/i2c-imx-lpi2c.c

···
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
···
 	temp = readl(lpi2c_imx->base + LPI2C_MSR);
 	temp &= enabled;
 
-	if (temp & MSR_RDF)
-		lpi2c_imx_read_rxfifo(lpi2c_imx);
-
-	if (temp & MSR_TDF)
-		lpi2c_imx_write_txfifo(lpi2c_imx);
-
 	if (temp & MSR_NDF)
 		complete(&lpi2c_imx->complete);
+	else if (temp & MSR_RDF)
+		lpi2c_imx_read_rxfifo(lpi2c_imx);
+	else if (temp & MSR_TDF)
+		lpi2c_imx_write_txfifo(lpi2c_imx);
 
 	return IRQ_HANDLED;
 }
···
 		sizeof(lpi2c_imx->adapter.name));
 
 	ret = devm_clk_bulk_get_all(&pdev->dev, &lpi2c_imx->clks);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "can't get I2C peripheral clock, ret=%d\n", ret);
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(&pdev->dev, ret, "can't get I2C peripheral clock\n");
 	lpi2c_imx->num_clks = ret;
 
 	ret = of_property_read_u32(pdev->dev.of_node,
···
 
 	ret = devm_request_irq(&pdev->dev, irq, lpi2c_imx_isr, 0,
 			       pdev->name, lpi2c_imx);
-	if (ret) {
-		dev_err(&pdev->dev, "can't claim irq %d\n", irq);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret, "can't claim irq %d\n", irq);
 
 	i2c_set_adapdata(&lpi2c_imx->adapter, lpi2c_imx);
 	platform_set_drvdata(pdev, lpi2c_imx);

drivers/i2c/busses/i2c-imx.c

···
 #include <linux/hrtimer.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/of_dma.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_data/i2c-imx.h>
···
 	struct i2c_bus_recovery_info *rinfo = &i2c_imx->rinfo;
 
 	i2c_imx->pinctrl = devm_pinctrl_get(&pdev->dev);
-	if (!i2c_imx->pinctrl || IS_ERR(i2c_imx->pinctrl)) {
+	if (!i2c_imx->pinctrl) {
+		dev_info(&pdev->dev, "pinctrl unavailable, bus recovery not supported\n");
+		return 0;
+	}
+	if (IS_ERR(i2c_imx->pinctrl)) {
 		dev_info(&pdev->dev, "can't get pinctrl, bus recovery not supported\n");
 		return PTR_ERR(i2c_imx->pinctrl);
 	}
···
 		goto rpm_disable;
 
 	/* Request IRQ */
-	ret = request_threaded_irq(irq, i2c_imx_isr, NULL, IRQF_SHARED,
-				   pdev->name, i2c_imx);
+	ret = request_irq(irq, i2c_imx_isr, IRQF_SHARED, pdev->name, i2c_imx);
 	if (ret) {
 		dev_err(&pdev->dev, "can't claim irq %d\n", irq);
 		goto rpm_disable;

drivers/i2c/busses/i2c-jz4780.c

···
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/sched.h>
 #include <linux/slab.h>

drivers/i2c/busses/i2c-kempld.c

···
 	i2c_del_adapter(&i2c->adap);
 }
 
-#ifdef CONFIG_PM
-static int kempld_i2c_suspend(struct platform_device *pdev, pm_message_t state)
+static int kempld_i2c_suspend(struct device *dev)
 {
-	struct kempld_i2c_data *i2c = platform_get_drvdata(pdev);
+	struct kempld_i2c_data *i2c = dev_get_drvdata(dev);
 	struct kempld_device_data *pld = i2c->pld;
 	u8 ctrl;
 
···
 	return 0;
 }
 
-static int kempld_i2c_resume(struct platform_device *pdev)
+static int kempld_i2c_resume(struct device *dev)
 {
-	struct kempld_i2c_data *i2c = platform_get_drvdata(pdev);
+	struct kempld_i2c_data *i2c = dev_get_drvdata(dev);
 	struct kempld_device_data *pld = i2c->pld;
 
 	kempld_get_mutex(pld);
···
 
 	return 0;
 }
-#else
-#define kempld_i2c_suspend	NULL
-#define kempld_i2c_resume	NULL
-#endif
+
+static DEFINE_SIMPLE_DEV_PM_OPS(kempld_i2c_pm_ops,
+				kempld_i2c_suspend, kempld_i2c_resume);
 
 static struct platform_driver kempld_i2c_driver = {
 	.driver = {
 		.name = "kempld-i2c",
+		.pm = pm_sleep_ptr(&kempld_i2c_pm_ops),
 	},
 	.probe		= kempld_i2c_probe,
 	.remove_new	= kempld_i2c_remove,
-	.suspend	= kempld_i2c_suspend,
-	.resume		= kempld_i2c_resume,
 };
 
 module_platform_driver(kempld_i2c_driver);

drivers/i2c/busses/i2c-lpc2k.c

···
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/sched.h>
 #include <linux/time.h>
···
 	i2c_del_adapter(&i2c->adap);
 }
 
-#ifdef CONFIG_PM
 static int i2c_lpc2k_suspend(struct device *dev)
 {
 	struct lpc2k_i2c *i2c = dev_get_drvdata(dev);
···
 	.resume_noirq = i2c_lpc2k_resume,
 };
 
-#define I2C_LPC2K_DEV_PM_OPS (&i2c_lpc2k_dev_pm_ops)
-#else
-#define I2C_LPC2K_DEV_PM_OPS NULL
-#endif
-
 static const struct of_device_id lpc2k_i2c_match[] = {
 	{ .compatible = "nxp,lpc1788-i2c" },
 	{},
···
 	.remove_new = i2c_lpc2k_remove,
 	.driver	= {
 		.name		= "lpc2k-i2c",
-		.pm		= I2C_LPC2K_DEV_PM_OPS,
+		.pm		= pm_sleep_ptr(&i2c_lpc2k_dev_pm_ops),
 		.of_match_table	= lpc2k_i2c_match,
 	},
 };

drivers/i2c/busses/i2c-meson.c

···
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/types.h>
 

drivers/i2c/busses/i2c-microchip-corei2c.c

···
 		return PTR_ERR(idev->base);
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0)
-		return dev_err_probe(&pdev->dev, -ENXIO,
-				     "invalid IRQ %d for I2C controller\n", irq);
+	if (irq < 0)
+		return irq;
 
 	idev->i2c_clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(idev->i2c_clk))

drivers/i2c/busses/i2c-mlxbf.c

···
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/string.h>
 
···
 	if (!tmp_res)
 		return -ENOMEM;
 
-	tmp_res->params = platform_get_resource(pdev, IORESOURCE_MEM, type);
-	if (!tmp_res->params) {
-		devm_kfree(dev, tmp_res);
-		return -EIO;
-	}
-
-	tmp_res->io = devm_ioremap_resource(dev, tmp_res->params);
+	tmp_res->io = devm_platform_get_and_ioremap_resource(pdev, type, &tmp_res->params);
 	if (IS_ERR(tmp_res->io)) {
 		devm_kfree(dev, tmp_res);
 		return PTR_ERR(tmp_res->io);
···
 
 		ret = mlxbf_i2c_init_resource(pdev, &priv->smbus,
 					      MLXBF_I2C_SMBUS_RES);
-		if (ret < 0) {
-			dev_err(dev, "Cannot fetch smbus resource info");
-			return ret;
-		}
+		if (ret < 0)
+			return dev_err_probe(dev, ret, "Cannot fetch smbus resource info");
 
 		priv->timer->io = priv->smbus->io;
 		priv->mst->io = priv->smbus->io + MLXBF_I2C_MST_ADDR_OFFSET;
···
 	} else {
 		ret = mlxbf_i2c_init_resource(pdev, &priv->timer,
 					      MLXBF_I2C_SMBUS_TIMER_RES);
-		if (ret < 0) {
-			dev_err(dev, "Cannot fetch timer resource info");
-			return ret;
-		}
+		if (ret < 0)
+			return dev_err_probe(dev, ret, "Cannot fetch timer resource info");
 
 		ret = mlxbf_i2c_init_resource(pdev, &priv->mst,
 					      MLXBF_I2C_SMBUS_MST_RES);
-		if (ret < 0) {
-			dev_err(dev, "Cannot fetch master resource info");
-			return ret;
-		}
+		if (ret < 0)
+			return dev_err_probe(dev, ret, "Cannot fetch master resource info");
 
 		ret = mlxbf_i2c_init_resource(pdev, &priv->slv,
 					      MLXBF_I2C_SMBUS_SLV_RES);
-		if (ret < 0) {
-			dev_err(dev, "Cannot fetch slave resource info");
-			return ret;
-		}
+		if (ret < 0)
+			return dev_err_probe(dev, ret, "Cannot fetch slave resource info");
 	}
 
 	ret = mlxbf_i2c_init_resource(pdev, &priv->mst_cause,
 				      MLXBF_I2C_MST_CAUSE_RES);
-	if (ret < 0) {
-		dev_err(dev, "Cannot fetch cause master resource info");
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "Cannot fetch cause master resource info");
 
 	ret = mlxbf_i2c_init_resource(pdev, &priv->slv_cause,
 				      MLXBF_I2C_SLV_CAUSE_RES);
-	if (ret < 0) {
-		dev_err(dev, "Cannot fetch cause slave resource info");
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "Cannot fetch cause slave resource info");
 
 	adap = &priv->adap;
 	adap->owner = THIS_MODULE;
···
 	 * does not really hurt, then keep the code as is.
 	 */
 	ret = mlxbf_i2c_init_master(pdev, priv);
-	if (ret < 0) {
-		dev_err(dev, "failed to initialize smbus master %d",
-			priv->bus);
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "failed to initialize smbus master %d",
+				     priv->bus);
 
 	mlxbf_i2c_init_timings(pdev, priv);
 
···
 	ret = devm_request_irq(dev, irq, mlxbf_i2c_irq,
 			       IRQF_SHARED | IRQF_PROBE_SHARED,
 			       dev_name(dev), priv);
-	if (ret < 0) {
-		dev_err(dev, "Cannot get irq %d\n", irq);
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "Cannot get irq %d\n", irq);
 
 	priv->irq = irq;
 

drivers/i2c/busses/i2c-mlxcpld.c

···
 #define MLXCPLD_I2C_BUS_NUM		1
 #define MLXCPLD_I2C_DATA_REG_SZ		36
 #define MLXCPLD_I2C_DATA_SZ_BIT		BIT(5)
+#define MLXCPLD_I2C_DATA_EXT2_SZ_BIT	BIT(6)
 #define MLXCPLD_I2C_DATA_SZ_MASK	GENMASK(6, 5)
 #define MLXCPLD_I2C_SMBUS_BLK_BIT	BIT(7)
 #define MLXCPLD_I2C_MAX_ADDR_LEN	4
···
 	.max_comb_1st_msg_len = 4,
 };
 
+static const struct i2c_adapter_quirks mlxcpld_i2c_quirks_ext2 = {
+	.flags = I2C_AQ_COMB_WRITE_THEN_READ,
+	.max_read_len = (MLXCPLD_I2C_DATA_REG_SZ - 4) * 4,
+	.max_write_len = (MLXCPLD_I2C_DATA_REG_SZ - 4) * 4 + MLXCPLD_I2C_MAX_ADDR_LEN,
+	.max_comb_1st_msg_len = 4,
+};
+
 static struct i2c_adapter mlxcpld_i2c_adapter = {
 	.owner          = THIS_MODULE,
 	.name           = "i2c-mlxcpld",
···
 	/* Check support for extended transaction length */
 	if ((val & MLXCPLD_I2C_DATA_SZ_MASK) == MLXCPLD_I2C_DATA_SZ_BIT)
 		mlxcpld_i2c_adapter.quirks = &mlxcpld_i2c_quirks_ext;
+	else if ((val & MLXCPLD_I2C_DATA_SZ_MASK) == MLXCPLD_I2C_DATA_EXT2_SZ_BIT)
+		mlxcpld_i2c_adapter.quirks = &mlxcpld_i2c_quirks_ext2;
 	/* Check support for smbus block transaction */
 	if (val & MLXCPLD_I2C_SMBUS_BLK_BIT)
 		priv->smbus_block = true;

drivers/i2c/busses/i2c-mpc.c

···
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/sched/signal.h>
+#include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
-#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/property.h>
 #include <linux/slab.h>
 

drivers/i2c/busses/i2c-mt65xx.c

···
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/module.h>
-#include <linux/of_address.h>
-#include <linux/of_device.h>
-#include <linux/of_irq.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/scatterlist.h>
 #include <linux/sched.h>
···
 	clk_bulk_unprepare(I2C_MT65XX_CLK_MAX, i2c->clocks);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int mtk_i2c_suspend_noirq(struct device *dev)
 {
 	struct mtk_i2c *i2c = dev_get_drvdata(dev);
···
 
 	return 0;
 }
-#endif
 
 static const struct dev_pm_ops mtk_i2c_pm = {
-	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(mtk_i2c_suspend_noirq,
-				      mtk_i2c_resume_noirq)
+	NOIRQ_SYSTEM_SLEEP_PM_OPS(mtk_i2c_suspend_noirq,
+				  mtk_i2c_resume_noirq)
 };
 
 static struct platform_driver mtk_i2c_driver = {
···
 	.remove_new = mtk_i2c_remove,
 	.driver = {
 		.name = I2C_DRV_NAME,
-		.pm = &mtk_i2c_pm,
+		.pm = pm_sleep_ptr(&mtk_i2c_pm),
 		.of_match_table = mtk_i2c_of_match,
 	},
 };

drivers/i2c/busses/i2c-mt7621.c

···
 #include <linux/io.h>
 #include <linux/iopoll.h>
 #include <linux/module.h>
-#include <linux/of_platform.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
 #include <linux/reset.h>
 
 #define REG_SM0CFG2_REG		0x28

drivers/i2c/busses/i2c-mxs.c

···
 #include <linux/io.h>
 #include <linux/stmp_device.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/dmaengine.h>
 #include <linux/dma/mxs-dma.h>

drivers/i2c/busses/i2c-nforce2.c

···
 		/* Older incarnations of the device used non-standard BARs */
 		u16 iobase;
 
-		if (pci_read_config_word(dev, alt_reg, &iobase)
-		    != PCIBIOS_SUCCESSFUL) {
+		error = pci_read_config_word(dev, alt_reg, &iobase);
+		if (error != PCIBIOS_SUCCESSFUL) {
 			dev_err(&dev->dev, "Error reading PCI config for %s\n",
 				name);
 			return -EIO;

drivers/i2c/busses/i2c-nomadik.c

···
 	return IRQ_HANDLED;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int nmk_i2c_suspend_late(struct device *dev)
 {
 	int ret;
···
 {
 	return pm_runtime_force_resume(dev);
 }
-#endif
 
-#ifdef CONFIG_PM
 static int nmk_i2c_runtime_suspend(struct device *dev)
 {
 	struct amba_device *adev = to_amba_device(dev);
···
 
 	return ret;
 }
-#endif
 
 static const struct dev_pm_ops nmk_i2c_pm = {
-	SET_LATE_SYSTEM_SLEEP_PM_OPS(nmk_i2c_suspend_late, nmk_i2c_resume_early)
-	SET_RUNTIME_PM_OPS(nmk_i2c_runtime_suspend,
-			nmk_i2c_runtime_resume,
-			NULL)
+	LATE_SYSTEM_SLEEP_PM_OPS(nmk_i2c_suspend_late, nmk_i2c_resume_early)
+	RUNTIME_PM_OPS(nmk_i2c_runtime_suspend, nmk_i2c_runtime_resume, NULL)
 };
 
 static unsigned int nmk_i2c_functionality(struct i2c_adapter *adap)
···
 	.drv = {
 		.owner = THIS_MODULE,
 		.name = DRIVER_NAME,
-		.pm = &nmk_i2c_pm,
+		.pm = pm_ptr(&nmk_i2c_pm),
 	},
 	.id_table = nmk_i2c_ids,
 	.probe = nmk_i2c_probe,

drivers/i2c/busses/i2c-npcm7xx.c

···
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 

drivers/i2c/busses/i2c-ocores.c

···
 	i2c_del_adapter(&i2c->adap);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int ocores_i2c_suspend(struct device *dev)
 {
 	struct ocores_i2c *i2c = dev_get_drvdata(dev);
···
 	return ocores_init(dev, i2c);
 }
 
-static SIMPLE_DEV_PM_OPS(ocores_i2c_pm, ocores_i2c_suspend, ocores_i2c_resume);
-#define OCORES_I2C_PM	(&ocores_i2c_pm)
-#else
-#define OCORES_I2C_PM	NULL
-#endif
+static DEFINE_SIMPLE_DEV_PM_OPS(ocores_i2c_pm,
+				ocores_i2c_suspend, ocores_i2c_resume);
 
 static struct platform_driver ocores_i2c_driver = {
 	.probe   = ocores_i2c_probe,
···
 	.driver  = {
 		.name = "ocores-i2c",
 		.of_match_table = ocores_i2c_match,
-		.pm = OCORES_I2C_PM,
+		.pm = pm_sleep_ptr(&ocores_i2c_pm),
 	},
 };
 

drivers/i2c/busses/i2c-owl.c

···
 #include <linux/io.h>
 #include <linux/iopoll.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
 
 /* I2C registers */
 #define OWL_I2C_REG_CTL		0x0000

drivers/i2c/busses/i2c-pca-platform.c

···
 #include <linux/gpio/consumer.h>
 #include <linux/io.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 
 #include <asm/irq.h>
 

drivers/i2c/busses/i2c-pnx.c

···
 	.functionality = i2c_pnx_func,
 };
 
-#ifdef CONFIG_PM_SLEEP
 static int i2c_pnx_controller_suspend(struct device *dev)
 {
 	struct i2c_pnx_algo_data *alg_data = dev_get_drvdata(dev);
···
 	return clk_prepare_enable(alg_data->clk);
 }
 
-static SIMPLE_DEV_PM_OPS(i2c_pnx_pm,
-			 i2c_pnx_controller_suspend, i2c_pnx_controller_resume);
-#define PNX_I2C_PM	(&i2c_pnx_pm)
-#else
-#define PNX_I2C_PM	NULL
-#endif
+static DEFINE_SIMPLE_DEV_PM_OPS(i2c_pnx_pm,
+				i2c_pnx_controller_suspend,
+				i2c_pnx_controller_resume);
 
 static int i2c_pnx_probe(struct platform_device *pdev)
 {
···
 		 "%s", pdev->name);
 
 	/* Register I/O resource */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	alg_data->ioaddr = devm_ioremap_resource(&pdev->dev, res);
+	alg_data->ioaddr = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(alg_data->ioaddr))
 		return PTR_ERR(alg_data->ioaddr);
 
···
 	.driver = {
 		.name = "pnx-i2c",
 		.of_match_table = of_match_ptr(i2c_pnx_of_match),
-		.pm = PNX_I2C_PM,
+		.pm = pm_sleep_ptr(&i2c_pnx_pm),
 	},
 	.probe = i2c_pnx_probe,
 	.remove_new = i2c_pnx_remove,

drivers/i2c/busses/i2c-pxa-pci.c

···
 #include <linux/platform_device.h>
 #include <linux/platform_data/i2c-pxa.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/of_address.h>
 
 #define CE4100_PCI_I2C_DEVS	3

drivers/i2c/busses/i2c-pxa.c

···
 	struct i2c_pxa_platform_data *plat = dev_get_platdata(&dev->dev);
 	enum pxa_i2c_types i2c_type;
 	struct pxa_i2c *i2c;
-	struct resource *res = NULL;
+	struct resource *res;
 	int ret, irq;
 
 	i2c = devm_kzalloc(&dev->dev, sizeof(struct pxa_i2c), GFP_KERNEL);
···
 	i2c->adap.dev.of_node = dev->dev.of_node;
 #endif
 
-	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
-	i2c->reg_base = devm_ioremap_resource(&dev->dev, res);
+	i2c->reg_base = devm_platform_get_and_ioremap_resource(dev, 0, &res);
 	if (IS_ERR(i2c->reg_base))
 		return PTR_ERR(i2c->reg_base);
 
···
 	strscpy(i2c->adap.name, "pxa_i2c-i2c", sizeof(i2c->adap.name));
 
 	i2c->clk = devm_clk_get(&dev->dev, NULL);
-	if (IS_ERR(i2c->clk)) {
-		dev_err(&dev->dev, "failed to get the clk: %ld\n", PTR_ERR(i2c->clk));
-		return PTR_ERR(i2c->clk);
-	}
+	if (IS_ERR(i2c->clk))
+		return dev_err_probe(&dev->dev, PTR_ERR(i2c->clk),
+				     "failed to get the clk\n");
 
 	i2c->reg_ibmr = i2c->reg_base + pxa_reg_layout[i2c_type].ibmr;
 	i2c->reg_idbr = i2c->reg_base + pxa_reg_layout[i2c_type].idbr;
···
 	clk_disable_unprepare(i2c->clk);
 }
 
-#ifdef CONFIG_PM
 static int i2c_pxa_suspend_noirq(struct device *dev)
 {
 	struct pxa_i2c *i2c = dev_get_drvdata(dev);
···
 	.resume_noirq = i2c_pxa_resume_noirq,
 };
 
-#define I2C_PXA_DEV_PM_OPS (&i2c_pxa_dev_pm_ops)
-#else
-#define I2C_PXA_DEV_PM_OPS NULL
-#endif
-
 static struct platform_driver i2c_pxa_driver = {
 	.probe		= i2c_pxa_probe,
 	.remove_new	= i2c_pxa_remove,
 	.driver		= {
 		.name	= "pxa2xx-i2c",
-		.pm	= I2C_PXA_DEV_PM_OPS,
+		.pm	= pm_sleep_ptr(&i2c_pxa_dev_pm_ops),
 		.of_match_table = i2c_pxa_dt_ids,
 	},
 	.id_table	= i2c_pxa_id_table,

drivers/i2c/busses/i2c-qcom-cci.c

···
 	/* Clocks */
 
 	ret = devm_clk_bulk_get_all(dev, &cci->clocks);
-	if (ret < 1) {
-		dev_err(dev, "failed to get clocks %d\n", ret);
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "failed to get clocks\n");
+	else if (!ret)
+		return dev_err_probe(dev, -EINVAL, "not enough clocks in DT\n");
 	cci->nclocks = ret;
 
 	/* Retrieve CCI clock rate */

drivers/i2c/busses/i2c-qcom-geni.c

···
 static int geni_i2c_probe(struct platform_device *pdev)
 {
 	struct geni_i2c_dev *gi2c;
-	struct resource *res;
 	u32 proto, tx_depth, fifo_disable;
 	int ret;
 	struct device *dev = &pdev->dev;
···
 
 	gi2c->se.dev = dev;
 	gi2c->se.wrapper = dev_get_drvdata(dev->parent);
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	gi2c->se.base = devm_ioremap_resource(dev, res);
+	gi2c->se.base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(gi2c->se.base))
 		return PTR_ERR(gi2c->se.base);
 

drivers/i2c/busses/i2c-qup.c

···
 	pm_runtime_set_suspended(qup->dev);
 }
 
-#ifdef CONFIG_PM
 static int qup_i2c_pm_suspend_runtime(struct device *device)
 {
 	struct qup_i2c_dev *qup = dev_get_drvdata(device);
···
 	qup_i2c_enable_clocks(qup);
 	return 0;
 }
-#endif
 
-#ifdef CONFIG_PM_SLEEP
 static int qup_i2c_suspend(struct device *device)
 {
 	if (!pm_runtime_suspended(device))
···
 	pm_request_autosuspend(device);
 	return 0;
 }
-#endif
 
 static const struct dev_pm_ops qup_i2c_qup_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(
-		qup_i2c_suspend,
-		qup_i2c_resume)
-	SET_RUNTIME_PM_OPS(
-		qup_i2c_pm_suspend_runtime,
-		qup_i2c_pm_resume_runtime,
-		NULL)
+	SYSTEM_SLEEP_PM_OPS(qup_i2c_suspend, qup_i2c_resume)
+	RUNTIME_PM_OPS(qup_i2c_pm_suspend_runtime,
+		       qup_i2c_pm_resume_runtime, NULL)
 };
 
 static const struct of_device_id qup_i2c_dt_match[] = {
···
 	.remove_new = qup_i2c_remove,
 	.driver = {
 		.name = "i2c_qup",
-		.pm = &qup_i2c_qup_pm_ops,
+		.pm = pm_ptr(&qup_i2c_qup_pm_ops),
 		.of_match_table = qup_i2c_dt_match,
 		.acpi_match_table = ACPI_PTR(qup_i2c_acpi_match),
 	},

drivers/i2c/busses/i2c-rcar.c

···
 #include <linux/i2c-smbus.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/reset.h>
···
 	pm_runtime_disable(dev);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int rcar_i2c_suspend(struct device *dev)
 {
 	struct rcar_i2c_priv *priv = dev_get_drvdata(dev);
···
 }
 
 static const struct dev_pm_ops rcar_i2c_pm_ops = {
-	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(rcar_i2c_suspend, rcar_i2c_resume)
+	NOIRQ_SYSTEM_SLEEP_PM_OPS(rcar_i2c_suspend, rcar_i2c_resume)
 };
-
-#define DEV_PM_OPS (&rcar_i2c_pm_ops)
-#else
-#define DEV_PM_OPS NULL
-#endif /* CONFIG_PM_SLEEP */
 
 static struct platform_driver rcar_i2c_driver = {
 	.driver	= {
 		.name	= "i2c-rcar",
 		.of_match_table = rcar_i2c_dt_ids,
-		.pm	= DEV_PM_OPS,
+		.pm	= pm_sleep_ptr(&rcar_i2c_pm_ops),
 	},
 	.probe		= rcar_i2c_probe,
 	.remove_new	= rcar_i2c_remove,

drivers/i2c/busses/i2c-riic.c

···
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/reset.h>

drivers/i2c/busses/i2c-s3c2410.c

···
 #include <linux/slab.h>
 #include <linux/io.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/gpio/consumer.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/mfd/syscon.h>
···
 	dev_dbg(&pdev->dev, "clock source %p\n", i2c->clk);
 
 	/* map the registers */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	i2c->regs = devm_ioremap_resource(&pdev->dev, res);
-
+	i2c->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(i2c->regs))
 		return PTR_ERR(i2c->regs);
 
···
 	if (!(i2c->quirks & QUIRK_POLL)) {
 		i2c->irq = ret = platform_get_irq(pdev, 0);
 		if (ret < 0) {
-			dev_err(&pdev->dev, "cannot find IRQ\n");
 			clk_unprepare(i2c->clk);
 			return ret;
 		}
···
 	i2c_del_adapter(&i2c->adap);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int s3c24xx_i2c_suspend_noirq(struct device *dev)
 {
 	struct s3c24xx_i2c *i2c = dev_get_drvdata(dev);
···
 
 	return 0;
 }
-#endif
 
-#ifdef CONFIG_PM
 static const struct dev_pm_ops s3c24xx_i2c_dev_pm_ops = {
-	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(s3c24xx_i2c_suspend_noirq,
-				      s3c24xx_i2c_resume_noirq)
+	NOIRQ_SYSTEM_SLEEP_PM_OPS(s3c24xx_i2c_suspend_noirq,
+				  s3c24xx_i2c_resume_noirq)
 };
-
-#define S3C24XX_DEV_PM_OPS (&s3c24xx_i2c_dev_pm_ops)
-#else
-#define S3C24XX_DEV_PM_OPS NULL
-#endif
 
 static struct platform_driver s3c24xx_i2c_driver = {
 	.probe		= s3c24xx_i2c_probe,
···
 	.id_table	= s3c24xx_driver_ids,
 	.driver		= {
 		.name	= "s3c-i2c",
-		.pm	= S3C24XX_DEV_PM_OPS,
+		.pm	= pm_sleep_ptr(&s3c24xx_i2c_dev_pm_ops),
 		.of_match_table = of_match_ptr(s3c24xx_i2c_match),
 	},
 };

drivers/i2c/busses/i2c-sh_mobile.c

···
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
···
 {
 	struct sh_mobile_i2c_data *pd;
 	struct i2c_adapter *adap;
-	struct resource *res;
 	const struct sh_mobile_dt_config *config;
 	int ret;
 	u32 bus_speed;
···
 	pd->dev = &dev->dev;
 	platform_set_drvdata(dev, pd);
 
-	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
-
-	pd->res = res;
-	pd->reg = devm_ioremap_resource(&dev->dev, res);
+	pd->reg = devm_platform_get_and_ioremap_resource(dev, 0, &pd->res);
 	if (IS_ERR(pd->reg))
 		return PTR_ERR(pd->reg);
 
···
 	pd->clks_per_count = 1;
 
 	/* Newer variants come with two new bits in ICIC */
-	if (resource_size(res) > 0x17)
+	if (resource_size(pd->res) > 0x17)
 		pd->flags |= IIC_FLAG_HAS_ICIC67;
 
 	pm_runtime_enable(&dev->dev);
···
 	pm_runtime_disable(&dev->dev);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int sh_mobile_i2c_suspend(struct device *dev)
 {
 	struct sh_mobile_i2c_data *pd = dev_get_drvdata(dev);
···
 }
 
 static const struct dev_pm_ops sh_mobile_i2c_pm_ops = {
-	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(sh_mobile_i2c_suspend,
-				      sh_mobile_i2c_resume)
+	NOIRQ_SYSTEM_SLEEP_PM_OPS(sh_mobile_i2c_suspend,
+				  sh_mobile_i2c_resume)
 };
-
-#define DEV_PM_OPS (&sh_mobile_i2c_pm_ops)
-#else
-#define DEV_PM_OPS NULL
-#endif /* CONFIG_PM_SLEEP */
 
 static struct platform_driver sh_mobile_i2c_driver = {
 	.driver		= {
 		.name		= "i2c-sh_mobile",
 		.of_match_table = sh_mobile_i2c_dt_ids,
-		.pm	= DEV_PM_OPS,
+		.pm	= pm_sleep_ptr(&sh_mobile_i2c_pm_ops),
 	},
 	.probe		= sh_mobile_i2c_probe,
 	.remove_new	= sh_mobile_i2c_remove,

drivers/i2c/busses/i2c-sis5595.c

···
 
 	if (force_addr) {
 		dev_info(&SIS5595_dev->dev, "forcing ISA address 0x%04X\n", sis5595_base);
-		if (pci_write_config_word(SIS5595_dev, ACPI_BASE, sis5595_base)
-		    != PCIBIOS_SUCCESSFUL)
+		retval = pci_write_config_word(SIS5595_dev, ACPI_BASE, sis5595_base);
+		if (retval != PCIBIOS_SUCCESSFUL)
 			goto error;
-		if (pci_read_config_word(SIS5595_dev, ACPI_BASE, &a)
-		    != PCIBIOS_SUCCESSFUL)
+		retval = pci_read_config_word(SIS5595_dev, ACPI_BASE, &a);
+		if (retval != PCIBIOS_SUCCESSFUL)
 			goto error;
 		if ((a & ~(SIS5595_EXTENT - 1)) != sis5595_base) {
 			/* doesn't work for some chips! */
···
 		}
 	}
 
-	if (pci_read_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, &val)
-	    != PCIBIOS_SUCCESSFUL)
+	retval = pci_read_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, &val);
+	if (retval != PCIBIOS_SUCCESSFUL)
 		goto error;
 	if ((val & 0x80) == 0) {
 		dev_info(&SIS5595_dev->dev, "enabling ACPI\n");
-		if (pci_write_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, val | 0x80)
-		    != PCIBIOS_SUCCESSFUL)
+		retval = pci_write_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, val | 0x80);
+		if (retval != PCIBIOS_SUCCESSFUL)
 			goto error;
-		if (pci_read_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, &val)
-		    != PCIBIOS_SUCCESSFUL)
+		retval = pci_read_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, &val);
+		if (retval != PCIBIOS_SUCCESSFUL)
 			goto error;
 		if ((val & 0x80) == 0) {
 			/* doesn't work for some chips? */

drivers/i2c/busses/i2c-sprd.c

···
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 

drivers/i2c/busses/i2c-st.c

···
 	if (!i2c_dev)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	i2c_dev->base = devm_ioremap_resource(&pdev->dev, res);
+	i2c_dev->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(i2c_dev->base))
 		return PTR_ERR(i2c_dev->base);
 

drivers/i2c/busses/i2c-stm32f4.c

···
 	if (!i2c_dev)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	i2c_dev->base = devm_ioremap_resource(&pdev->dev, res);
+	i2c_dev->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(i2c_dev->base))
 		return PTR_ERR(i2c_dev->base);
 

drivers/i2c/busses/i2c-stm32f7.c

···
 	phy_addr = (dma_addr_t)res->start;
 
 	irq_event = platform_get_irq(pdev, 0);
-	if (irq_event <= 0)
-		return irq_event ? : -ENOENT;
+	if (irq_event < 0)
+		return irq_event;
 
 	irq_error = platform_get_irq(pdev, 1);
-	if (irq_error <= 0)
-		return irq_error ? : -ENOENT;
+	if (irq_error < 0)
+		return irq_error;
 
 	i2c_dev->wakeup_src = of_property_read_bool(pdev->dev.of_node,
 						    "wakeup-source");

drivers/i2c/busses/i2c-synquacer.c

···
 		dev_dbg(&pdev->dev, "clock source %p\n", i2c->pclk);
 
 		ret = clk_prepare_enable(i2c->pclk);
-		if (ret) {
-			dev_err(&pdev->dev, "failed to enable clock (%d)\n",
-				ret);
-			return ret;
-		}
+		if (ret)
+			return dev_err_probe(&pdev->dev, ret, "failed to enable clock\n");
 		i2c->pclkrate = clk_get_rate(i2c->pclk);
 	}
 
 	if (i2c->pclkrate < SYNQUACER_I2C_MIN_CLK_RATE ||
-	    i2c->pclkrate > SYNQUACER_I2C_MAX_CLK_RATE) {
-		dev_err(&pdev->dev, "PCLK missing or out of range (%d)\n",
-			i2c->pclkrate);
-		return -EINVAL;
-	}
+	    i2c->pclkrate > SYNQUACER_I2C_MAX_CLK_RATE)
+		return dev_err_probe(&pdev->dev, -EINVAL,
+				     "PCLK missing or out of range (%d)\n",
+				     i2c->pclkrate);
 
 	i2c->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(i2c->base))
···
 
 	ret = devm_request_irq(&pdev->dev, i2c->irq, synquacer_i2c_isr,
 			       0, dev_name(&pdev->dev), i2c);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "cannot claim IRQ %d\n", i2c->irq);
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(&pdev->dev, ret, "cannot claim IRQ %d\n", i2c->irq);
 
 	i2c->state = STATE_IDLE;
 	i2c->dev = &pdev->dev;
···
 	synquacer_i2c_hw_init(i2c);
 
 	ret = i2c_add_numbered_adapter(&i2c->adapter);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add bus to i2c core\n");
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret, "failed to add bus to i2c core\n");
 
 	platform_set_drvdata(pdev, i2c);
 

drivers/i2c/busses/i2c-tegra-bpmp.c

···
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 

drivers/i2c/busses/i2c-tegra.c

···
 #include <linux/kernel.h>
 #include <linux/ktime.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>

drivers/i2c/busses/i2c-tiny-usb.c

···
 	int retval = -ENOMEM;
 	u16 version;
 
+	if (interface->intf_assoc &&
+	    interface->intf_assoc->bFunctionClass != USB_CLASS_VENDOR_SPEC)
+		return -ENODEV;
+
 	dev_dbg(&interface->dev, "probing usb device\n");
 
 	/* allocate memory for our device state and initialize it */

drivers/i2c/busses/i2c-virtio.c

···
 };
 MODULE_DEVICE_TABLE(virtio, id_table);
 
-#ifdef CONFIG_PM_SLEEP
 static int virtio_i2c_freeze(struct virtio_device *vdev)
 {
 	virtio_i2c_del_vqs(vdev);
···
 {
 	return virtio_i2c_setup_vqs(vdev->priv);
 }
-#endif
 
 static const unsigned int features[] = {
 	VIRTIO_I2C_F_ZERO_LENGTH_REQUEST,
···
 	.driver			= {
 		.name	= "i2c_virtio",
 	},
-#ifdef CONFIG_PM_SLEEP
-	.freeze = virtio_i2c_freeze,
-	.restore = virtio_i2c_restore,
-#endif
+	.freeze			= pm_sleep_ptr(virtio_i2c_freeze),
+	.restore		= pm_sleep_ptr(virtio_i2c_restore),
 };
 module_virtio_driver(virtio_i2c_driver);
 

drivers/i2c/busses/i2c-xlp9xx.c

···
 
 	err = devm_request_irq(&pdev->dev, priv->irq, xlp9xx_i2c_isr, 0,
 			       pdev->name, priv);
-	if (err) {
-		dev_err(&pdev->dev, "IRQ request failed!\n");
-		return err;
-	}
+	if (err)
+		return dev_err_probe(&pdev->dev, err, "IRQ request failed!\n");
 
 	init_completion(&priv->msg_complete);
 	priv->adapter.dev.parent = &pdev->dev;

drivers/i2c/muxes/Kconfig

···
 	  will be called i2c-mux-pca9541.
 
 config I2C_MUX_PCA954x
-	tristate "NXP PCA954x and PCA984x I2C Mux/switches"
+	tristate "NXP PCA954x/PCA984x and Maxim MAX735x/MAX736x I2C Mux/switches"
 	depends on GPIOLIB || COMPILE_TEST
 	help
-	  If you say yes here you get support for the NXP PCA954x
-	  and PCA984x I2C mux/switch devices.
+	  If you say yes here you get support for NXP PCA954x/PCA984x
+	  and Maxim MAX735x/MAX736x I2C mux/switch devices.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-mux-pca954x.

drivers/i2c/muxes/i2c-mux-gpmux.c

···
 #include <linux/i2c-mux.h>
 #include <linux/module.h>
 #include <linux/mux/consumer.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 
 struct mux {

drivers/i2c/muxes/i2c-mux-ltc4306.c

···
 #include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/property.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
···
 
 static bool ltc4306_is_volatile_reg(struct device *dev, unsigned int reg)
 {
-	return (reg == LTC_REG_CONFIG) ? true : false;
+	return reg == LTC_REG_CONFIG;
 }
 
 static const struct regmap_config ltc4306_regmap_config = {

drivers/i2c/muxes/i2c-mux-pca954x.c

···
  *	 PCA9540, PCA9542, PCA9543, PCA9544, PCA9545, PCA9546, PCA9547,
  *	 PCA9548, PCA9846, PCA9847, PCA9848 and PCA9849.
  *
+ * It's also compatible to Maxims MAX735x I2C switch chips, which are controlled
+ * as the NXP PCA9548 and the MAX736x chips that act like the PCA9544.
+ *
+ * This includes the:
+ *	 MAX7356, MAX7357, MAX7358, MAX7367, MAX7368 and MAX7369
+ *
  * These chips are all controlled via the I2C bus itself, and all have a
  * single 8-bit register. The upstream "parent" bus fans out to two,
  * four, or eight downstream busses or channels; which of these
···
 #include <linux/module.h>
 #include <linux/pm.h>
 #include <linux/property.h>
+#include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <dt-bindings/mux/mux.h>
···
 #define PCA954X_IRQ_OFFSET 4
 
 enum pca_type {
+	max_7356,
+	max_7357,
+	max_7358,
+	max_7367,
+	max_7368,
+	max_7369,
 	pca_9540,
 	pca_9542,
 	pca_9543,
···
 	struct irq_domain *irq;
 	unsigned int irq_mask;
 	raw_spinlock_t lock;
+	struct regulator *supply;
 };
 
-/* Provide specs for the PCA954x types we know about */
+/* Provide specs for the MAX735x, PCA954x and PCA984x types we know about */
 static const struct chip_desc chips[] = {
+	[max_7356] = {
+		.nchans = 8,
+		.muxtype = pca954x_isswi,
+		.id = { .manufacturer_id = I2C_DEVICE_ID_NONE },
+	},
+	[max_7357] = {
+		.nchans = 8,
+		.muxtype = pca954x_isswi,
+		.id = { .manufacturer_id = I2C_DEVICE_ID_NONE },
+		/*
+		 * No interrupt controller support. The interrupt
+		 * provides information about stuck channels.
+		 */
+	},
+	[max_7358] = {
+		.nchans = 8,
+		.muxtype = pca954x_isswi,
+		.id = { .manufacturer_id = I2C_DEVICE_ID_NONE },
+		/*
+		 * No interrupt controller support. The interrupt
+		 * provides information about stuck channels.
+		 */
+	},
+	[max_7367] = {
+		.nchans = 4,
+		.muxtype = pca954x_isswi,
+		.has_irq = 1,
+		.id = { .manufacturer_id = I2C_DEVICE_ID_NONE },
+	},
+	[max_7368] = {
+		.nchans = 4,
+		.muxtype = pca954x_isswi,
+		.id = { .manufacturer_id = I2C_DEVICE_ID_NONE },
+	},
+	[max_7369] = {
+		.nchans = 4,
+		.enable = 0x4,
+		.muxtype = pca954x_ismux,
+		.has_irq = 1,
+		.id = { .manufacturer_id = I2C_DEVICE_ID_NONE },
+	},
 	[pca_9540] = {
 		.nchans = 2,
 		.enable = 0x4,
···
 };
 
 static const struct i2c_device_id pca954x_id[] = {
+	{ "max7356", max_7356 },
+	{ "max7357", max_7357 },
+	{ "max7358", max_7358 },
+	{ "max7367", max_7367 },
+	{ "max7368", max_7368 },
+	{ "max7369", max_7369 },
 	{ "pca9540", pca_9540 },
 	{ "pca9542", pca_9542 },
 	{ "pca9543", pca_9543 },
···
 MODULE_DEVICE_TABLE(i2c, pca954x_id);
 
 static const struct of_device_id pca954x_of_match[] = {
+	{ .compatible = "maxim,max7356", .data = &chips[max_7356] },
+	{ .compatible = "maxim,max7357", .data = &chips[max_7357] },
+	{ .compatible = "maxim,max7358", .data = &chips[max_7358] },
+	{ .compatible = "maxim,max7367", .data = &chips[max_7367] },
+	{ .compatible = "maxim,max7368", .data = &chips[max_7368] },
+	{ .compatible = "maxim,max7369", .data = &chips[max_7369] },
 	{ .compatible = "nxp,pca9540", .data = &chips[pca_9540] },
 	{ .compatible = "nxp,pca9542", .data = &chips[pca_9542] },
 	{ .compatible = "nxp,pca9543", .data = &chips[pca_9543] },
···
 	struct pca954x *data = i2c_mux_priv(muxc);
 	int c, irq;
 
+	regulator_disable(data->supply);
+
 	if (data->irq) {
 		for (c = 0; c < data->chip->nchans; c++) {
 			irq = irq_find_mapping(data->irq, c);
···
 	i2c_set_clientdata(client, muxc);
 	data->client = client;
 
+	data->supply = devm_regulator_get(dev, "vdd");
+	if (IS_ERR(data->supply))
+		return dev_err_probe(dev, PTR_ERR(data->supply),
+				"Failed to request regulator\n");
+
+	ret = regulator_enable(data->supply);
+	if (ret)
+		return dev_err_probe(dev, ret,
+				     "Failed to enable vdd supply\n");
+
 	/* Reset the mux if a reset GPIO is specified. */
 	gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
-	if (IS_ERR(gpio))
-		return PTR_ERR(gpio);
+	if (IS_ERR(gpio)) {
+		ret = PTR_ERR(gpio);
+		goto fail_cleanup;
+	}
 	if (gpio) {
 		udelay(1);
 		gpiod_set_value_cansleep(gpio, 0);
···
 
 		ret = i2c_get_device_id(client, &id);
 		if (ret && ret != -EOPNOTSUPP)
-			return ret;
+			goto fail_cleanup;
 
 		if (!ret &&
 		    (id.manufacturer_id != data->chip->id.manufacturer_id ||
···
 			dev_warn(dev, "unexpected device id %03x-%03x-%x\n",
 				 id.manufacturer_id, id.part_id,
 				 id.die_revision);
-			return -ENODEV;
+			ret = -ENODEV;
+			goto fail_cleanup;
 		}
 	}
 
···
 	ret = pca954x_init(client, data);
 	if (ret < 0) {
 		dev_warn(dev, "probe failed\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto fail_cleanup;
 	}
 
 	ret = pca954x_irq_setup(muxc);
···
 	pca954x_cleanup(muxc);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int pca954x_resume(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
···
 
 	return ret;
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(pca954x_pm, NULL, pca954x_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(pca954x_pm, NULL, pca954x_resume);
 
 static struct i2c_driver pca954x_driver = {
 	.driver		= {
 		.name	= "pca954x",
-		.pm	= &pca954x_pm,
+		.pm	= pm_sleep_ptr(&pca954x_pm),
 		.of_match_table = pca954x_of_match,
 	},
 	.probe		= pca954x_probe,

include/linux/virtio.h

···
 	void (*scan)(struct virtio_device *dev);
 	void (*remove)(struct virtio_device *dev);
 	void (*config_changed)(struct virtio_device *dev);
-#ifdef CONFIG_PM
 	int (*freeze)(struct virtio_device *dev);
 	int (*restore)(struct virtio_device *dev);
-#endif
 };
 
 static inline struct virtio_driver *drv_to_virtio(struct device_driver *drv)