Merge tag 'zynq-soc-for-3.20' of https://github.com/Xilinx/linux-xlnx into next/soc

Merge "Zynq SoC changes for 3.20" from Michal Simek:

arm: Xilinx Zynq SoC patches for v3.20

- Enable pincontrol
- Simplified SLCR initialization
- Setup default ARCH_NR_GPIO

* tag 'zynq-soc-for-3.20' of https://github.com/Xilinx/linux-xlnx:
ARM: zynq: Simplify SLCR initialization
ARM: zynq: PM: Fixed simple typo.
ARM: zynq: Setup default gpio number for Xilinx Zynq
ARM: zynq: Enable pinctrl

Signed-off-by: Olof Johansson <[e-mail]>

arch/arm/Kconfig

···
 # selected platforms.
 config ARCH_NR_GPIO
 	int
-	default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
+	default 1024 if ARCH_SHMOBILE || ARCH_TEGRA || ARCH_ZYNQ
 	default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
 		SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
 	default 416 if ARCH_SUNXI

arch/arm/mach-zynq/Kconfig

···
 	select HAVE_ARM_TWD if SMP
 	select ICST
 	select MFD_SYSCON
+	select PINCTRL
+	select PINCTRL_ZYNQ
 	select SOC_BUS
 	help
 	  Support for Xilinx Zynq ARM Cortex A9 Platform

arch/arm/mach-zynq/common.c

···
 
 	platform_device_register(&zynq_cpuidle_device);
 	platform_device_register_full(&devinfo);
-
-	zynq_slcr_init();
 }
 
 static void __init zynq_timer_init(void)

arch/arm/mach-zynq/pm.c

···
 /**
  * zynq_pm_late_init() - Power management init
  *
- * Initialization of power management related featurs and infrastructure.
+ * Initialization of power management related features and infrastructure.
  */
 void __init zynq_pm_late_init(void)
 {

arch/arm/mach-zynq/slcr.c

···
  */
 static int zynq_slcr_write(u32 val, u32 offset)
 {
-	if (!zynq_slcr_regmap) {
-		writel(val, zynq_slcr_base + offset);
-		return 0;
-	}
-
 	return regmap_write(zynq_slcr_regmap, offset, val);
 }
 
···
  */
 static int zynq_slcr_read(u32 *val, u32 offset)
 {
-	if (zynq_slcr_regmap)
-		return regmap_read(zynq_slcr_regmap, offset, val);
-
-	*val = readl(zynq_slcr_base + offset);
-
-	return 0;
+	return regmap_read(zynq_slcr_regmap, offset, val);
 }
 
 /**
···
 }
 
 /**
- * zynq_slcr_init - Regular slcr driver init
- * Return:	0 on success, negative errno otherwise.
- *
- * Called early during boot from platform code to remap SLCR area.
- */
-int __init zynq_slcr_init(void)
-{
-	zynq_slcr_regmap = syscon_regmap_lookup_by_compatible("xlnx,zynq-slcr");
-	if (IS_ERR(zynq_slcr_regmap)) {
-		pr_err("%s: failed to find zynq-slcr\n", __func__);
-		return -ENODEV;
-	}
-
-	return 0;
-}
-
-/**
  * zynq_early_slcr_init - Early slcr init function
  *
  * Return:	0 on success, negative errno otherwise.
···
 	}
 
 	np->data = (__force void *)zynq_slcr_base;
+
+	zynq_slcr_regmap = syscon_regmap_lookup_by_compatible("xlnx,zynq-slcr");
+	if (IS_ERR(zynq_slcr_regmap)) {
+		pr_err("%s: failed to find zynq-slcr\n", __func__);
+		return -ENODEV;
+	}
 
 	/* unlock the SLCR so that registers can be changed */
 	zynq_slcr_unlock();