Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC specific changes from Arnd Bergmann:
 "These changes are all to SoC-specific code, a total of 33 branches on
  17 platforms were pulled into this.  Like last time, Renesas sh-mobile
  is now the platform with the most changes, followed by OMAP and
  EXYNOS.

  Two new platforms, TI Keystone and Rockchips RK3xxx are added in this
  branch, both containing almost no platform specific code at all, since
  they are using generic subsystem interfaces for clocks, pinctrl,
  interrupts etc.  The device drivers are getting merged through the
  respective subsystem maintainer trees.

  One more SoC (u300) is now multiplatform capable and several others
  (shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
  towards that goal with this series but need more work.

  Also noteworthy is the work on PCI here, which is traditionally part
  of the SoC specific code.  With the changes done by Thomas Petazzoni,
  we can now more easily have PCI host controller drivers as loadable
  modules and keep them separate from the platform code in
  drivers/pci/host.  This has already led to the discovery that three
  platforms (exynos, spear and imx) are actually using an identical PCIe
  host controller and will be able to share a driver once support for
  spear and imx is added."

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (480 commits)
  ARM: integrator: let pciv3 use mem/premem from device tree
  ARM: integrator: set local side PCI addresses right
  ARM: dts: Add pcie controller node for exynos5440-ssdk5440
  ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC
  ARM: EXYNOS: Enable PCIe support for Exynos5440
  pci: Add PCIe driver for Samsung Exynos
  ARM: OMAP5: voltagedomain data: remove temporary OMAP4 voltage data
  ARM: keystone: Move CPU bringup code to dedicated asm file
  ARM: multiplatform: always pick one CPU type
  ARM: imx: select syscon for IMX6SL
  ARM: keystone: select ARM_ERRATA_798181 only for SMP
  ARM: imx: Synertronixx scb9328 needs to select SOC_IMX1
  ARM: OMAP2+: AM43x: resolve SMP related build error
  dmaengine: edma: enable build for AM33XX
  ARM: edma: Add EDMA crossbar event mux support
  ARM: edma: Add DT and runtime PM support to the private EDMA API
  dmaengine: edma: Add TI EDMA device tree binding
  arm: add basic support for Rockchip RK3066a boards
  arm: add debug uarts for rockchip rk29xx and rk3xxx series
  arm: Add basic clocks for Rockchip rk3066a SoCs
  ...

1 files changed, 68 insertions, 168 deletions

diff --git a/drivers/gpio/gpio-clps711x.c b/drivers/gpio/gpio-clps711x.c
index ce63b75b13f..0edaf2ce926 100644
--- a/drivers/gpio/gpio-clps711x.c
+++ b/drivers/gpio/gpio-clps711x.c
@@ -1,7 +1,7 @@
 /*
  *  CLPS711X GPIO driver
  *
- *  Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
+ *  Copyright (C) 2012,2013 Alexander Shiyan <shc_work@mail.ru>
  *
  * 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
@@ -9,191 +9,91 @@
  * (at your option) any later version.
  */
 
-#include <linux/io.h>
-#include <linux/slab.h>
+#include <linux/err.h>
 #include <linux/gpio.h>
 #include <linux/module.h>
-#include <linux/spinlock.h>
+#include <linux/basic_mmio_gpio.h>
 #include <linux/platform_device.h>
 
-#include <mach/hardware.h>
-
-#define CLPS711X_GPIO_PORTS	5
-#define CLPS711X_GPIO_NAME	"gpio-clps711x"
-
-struct clps711x_gpio {
-	struct gpio_chip	chip[CLPS711X_GPIO_PORTS];
-	spinlock_t		lock;
-};
-
-static void __iomem *clps711x_ports[] = {
-	CLPS711X_VIRT_BASE + PADR,
-	CLPS711X_VIRT_BASE + PBDR,
-	CLPS711X_VIRT_BASE + PCDR,
-	CLPS711X_VIRT_BASE + PDDR,
-	CLPS711X_VIRT_BASE + PEDR,
-};
-
-static void __iomem *clps711x_pdirs[] = {
-	CLPS711X_VIRT_BASE + PADDR,
-	CLPS711X_VIRT_BASE + PBDDR,
-	CLPS711X_VIRT_BASE + PCDDR,
-	CLPS711X_VIRT_BASE + PDDDR,
-	CLPS711X_VIRT_BASE + PEDDR,
-};
-
-#define clps711x_port(x)	clps711x_ports[x->base / 8]
-#define clps711x_pdir(x)	clps711x_pdirs[x->base / 8]
-
-static int gpio_clps711x_get(struct gpio_chip *chip, unsigned offset)
+static int clps711x_gpio_probe(struct platform_device *pdev)
 {
-	return !!(readb(clps711x_port(chip)) & (1 << offset));
-}
+	struct device_node *np = pdev->dev.of_node;
+	void __iomem *dat, *dir;
+	struct bgpio_chip *bgc;
+	struct resource *res;
+	int err, id = np ? of_alias_get_id(np, "gpio") : pdev->id;
 
-static void gpio_clps711x_set(struct gpio_chip *chip, unsigned offset,
-			      int value)
-{
-	int tmp;
-	unsigned long flags;
-	struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
-
-	spin_lock_irqsave(&gpio->lock, flags);
-	tmp = readb(clps711x_port(chip)) & ~(1 << offset);
-	if (value)
-		tmp |= 1 << offset;
-	writeb(tmp, clps711x_port(chip));
-	spin_unlock_irqrestore(&gpio->lock, flags);
-}
-
-static int gpio_clps711x_dir_in(struct gpio_chip *chip, unsigned offset)
-{
-	int tmp;
-	unsigned long flags;
-	struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
+	if ((id < 0) || (id > 4))
+		return -ENODEV;
 
-	spin_lock_irqsave(&gpio->lock, flags);
-	tmp = readb(clps711x_pdir(chip)) & ~(1 << offset);
-	writeb(tmp, clps711x_pdir(chip));
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	bgc = devm_kzalloc(&pdev->dev, sizeof(*bgc), GFP_KERNEL);
+	if (!bgc)
+		return -ENOMEM;
 
-	return 0;
-}
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	dat = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(dat))
+		return PTR_ERR(dat);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	dir = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(dir))
+		return PTR_ERR(dir);
+
+	switch (id) {
+	case 3:
+		/* PORTD is inverted logic for direction register */
+		err = bgpio_init(bgc, &pdev->dev, 1, dat, NULL, NULL,
+				 NULL, dir, 0);
+		break;
+	default:
+		err = bgpio_init(bgc, &pdev->dev, 1, dat, NULL, NULL,
+				 dir, NULL, 0);
+		break;
+	}
 
-static int gpio_clps711x_dir_out(struct gpio_chip *chip, unsigned offset,
-				 int value)
-{
-	int tmp;
-	unsigned long flags;
-	struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
-
-	spin_lock_irqsave(&gpio->lock, flags);
-	tmp = readb(clps711x_pdir(chip)) | (1 << offset);
-	writeb(tmp, clps711x_pdir(chip));
-	tmp = readb(clps711x_port(chip)) & ~(1 << offset);
-	if (value)
-		tmp |= 1 << offset;
-	writeb(tmp, clps711x_port(chip));
-	spin_unlock_irqrestore(&gpio->lock, flags);
-
-	return 0;
-}
+	if (err)
+		return err;
 
-static int gpio_clps711x_dir_in_inv(struct gpio_chip *chip, unsigned offset)
-{
-	int tmp;
-	unsigned long flags;
-	struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
+	switch (id) {
+	case 4:
+		/* PORTE is 3 lines only */
+		bgc->gc.ngpio = 3;
+		break;
+	default:
+		break;
+	}
 
-	spin_lock_irqsave(&gpio->lock, flags);
-	tmp = readb(clps711x_pdir(chip)) | (1 << offset);
-	writeb(tmp, clps711x_pdir(chip));
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	bgc->gc.base = id * 8;
+	platform_set_drvdata(pdev, bgc);
 
-	return 0;
+	return gpiochip_add(&bgc->gc);
 }
 
-static int gpio_clps711x_dir_out_inv(struct gpio_chip *chip, unsigned offset,
-				     int value)
+static int clps711x_gpio_remove(struct platform_device *pdev)
 {
-	int tmp;
-	unsigned long flags;
-	struct clps711x_gpio *gpio = dev_get_drvdata(chip->dev);
-
-	spin_lock_irqsave(&gpio->lock, flags);
-	tmp = readb(clps711x_pdir(chip)) & ~(1 << offset);
-	writeb(tmp, clps711x_pdir(chip));
-	tmp = readb(clps711x_port(chip)) & ~(1 << offset);
-	if (value)
-		tmp |= 1 << offset;
-	writeb(tmp, clps711x_port(chip));
-	spin_unlock_irqrestore(&gpio->lock, flags);
-
-	return 0;
+	struct bgpio_chip *bgc = platform_get_drvdata(pdev);
+
+	return bgpio_remove(bgc);
 }
 
-static struct {
-	char	*name;
-	int	nr;
-	int	inv_dir;
-} clps711x_gpio_ports[] __initconst = {
-	{ "PORTA", 8, 0, },
-	{ "PORTB", 8, 0, },
-	{ "PORTC", 8, 0, },
-	{ "PORTD", 8, 1, },
-	{ "PORTE", 3, 0, },
+static const struct of_device_id clps711x_gpio_ids[] = {
+	{ .compatible = "cirrus,clps711x-gpio" },
+	{ }
 };
+MODULE_DEVICE_TABLE(of, clps711x_gpio_ids);
+
+static struct platform_driver clps711x_gpio_driver = {
+	.driver	= {
+		.name		= "clps711x-gpio",
+		.owner		= THIS_MODULE,
+		.of_match_table	= of_match_ptr(clps711x_gpio_ids),
+	},
+	.probe	= clps711x_gpio_probe,
+	.remove	= clps711x_gpio_remove,
+};
+module_platform_driver(clps711x_gpio_driver);
 
-static int __init gpio_clps711x_init(void)
-{
-	int i;
-	struct platform_device *pdev;
-	struct clps711x_gpio *gpio;
-
-	pdev = platform_device_alloc(CLPS711X_GPIO_NAME, 0);
-	if (!pdev) {
-		pr_err("Cannot create platform device: %s\n",
-		       CLPS711X_GPIO_NAME);
-		return -ENOMEM;
-	}
-
-	platform_device_add(pdev);
-
-	gpio = devm_kzalloc(&pdev->dev, sizeof(struct clps711x_gpio),
-			    GFP_KERNEL);
-	if (!gpio) {
-		dev_err(&pdev->dev, "GPIO allocating memory error\n");
-		platform_device_unregister(pdev);
-		return -ENOMEM;
-	}
-
-	platform_set_drvdata(pdev, gpio);
-
-	spin_lock_init(&gpio->lock);
-
-	for (i = 0; i < CLPS711X_GPIO_PORTS; i++) {
-		gpio->chip[i].owner		= THIS_MODULE;
-		gpio->chip[i].dev		= &pdev->dev;
-		gpio->chip[i].label		= clps711x_gpio_ports[i].name;
-		gpio->chip[i].base		= i * 8;
-		gpio->chip[i].ngpio		= clps711x_gpio_ports[i].nr;
-		gpio->chip[i].get		= gpio_clps711x_get;
-		gpio->chip[i].set		= gpio_clps711x_set;
-		if (!clps711x_gpio_ports[i].inv_dir) {
-			gpio->chip[i].direction_input = gpio_clps711x_dir_in;
-			gpio->chip[i].direction_output = gpio_clps711x_dir_out;
-		} else {
-			gpio->chip[i].direction_input = gpio_clps711x_dir_in_inv;
-			gpio->chip[i].direction_output = gpio_clps711x_dir_out_inv;
-		}
-		WARN_ON(gpiochip_add(&gpio->chip[i]));
-	}
-
-	dev_info(&pdev->dev, "GPIO driver initialized\n");
-
-	return 0;
-}
-arch_initcall(gpio_clps711x_init);
-
-MODULE_LICENSE("GPL v2");
+MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Alexander Shiyan <shc_work@mail.ru>");
 MODULE_DESCRIPTION("CLPS711X GPIO driver");