Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm

* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (417 commits)
  MAINTAINERS: EB110ATX is not ebsa110
  MAINTAINERS: update Eric Miao's email address and status
  fb: add support of LCD display controller on pxa168/910 (base layer)
  [ARM] 5552/1: ep93xx get_uart_rate(): use EP93XX_SYSCON_PWRCNT and EP93XX_SYSCON_PWRCN
  [ARM] pxa/sharpsl_pm: zaurus needs generic pxa suspend/resume routines
  [ARM] 5544/1: Trust PrimeCell resource sizes
  [ARM] pxa/sharpsl_pm: cleanup of gpio-related code.
  [ARM] pxa/sharpsl_pm: drop set_irq_type calls
  [ARM] pxa/sharpsl_pm: merge pxa-specific code into generic one
  [ARM] pxa/sharpsl_pm: merge the two sharpsl_pm.c since it's now pxa specific
  [ARM] sa1100: remove unused collie_pm.c
  [ARM] pxa: fix the conflicting non-static declarations of global_gpios[]
  [ARM] 5550/1: Add default configure file for w90p910 platform
  [ARM] 5549/1: Add clock api for w90p910 platform.
  [ARM] 5548/1: Add gpio api for w90p910 platform
  [ARM] 5551/1: Add multi-function pin api for w90p910 platform.
  [ARM] Make ARM_VIC_NR depend on ARM_VIC
  [ARM] 5546/1: ARM PL022 SSP/SPI driver v3
  ARM: OMAP4: SMP: Update defconfig for OMAP4430
  ARM: OMAP4: SMP: Enable SMP support for OMAP4430
  ...

1 files changed, 154 insertions, 0 deletions

diff --git a/arch/arm/mach-w90x900/gpio.c b/arch/arm/mach-w90x900/gpio.c
new file mode 100644
index 0000000..c72e0df
--- /dev/null
+++ b/arch/arm/mach-w90x900/gpio.c
@@ -0,0 +1,154 @@
+/*
+ * linux/arch/arm/mach-w90p910/gpio.c
+ *
+ * Generic w90p910 GPIO handling
+ *
+ *  Wan ZongShun <mcuos.com@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+
+#include <mach/hardware.h>
+
+#define GPIO_BASE 		(W90X900_VA_GPIO)
+#define GPIO_DIR		(0x04)
+#define GPIO_OUT		(0x08)
+#define GPIO_IN			(0x0C)
+#define GROUPINERV		(0x10)
+#define GPIO_GPIO(Nb)		(0x00000001 << (Nb))
+#define to_w90p910_gpio_chip(c) container_of(c, struct w90p910_gpio_chip, chip)
+
+#define W90P910_GPIO_CHIP(name, base_gpio, nr_gpio)			\
+	{								\
+		.chip = {						\
+			.label		  = name,			\
+			.direction_input  = w90p910_dir_input,		\
+			.direction_output = w90p910_dir_output,		\
+			.get		  = w90p910_gpio_get,		\
+			.set		  = w90p910_gpio_set,		\
+			.base		  = base_gpio,			\
+			.ngpio		  = nr_gpio,			\
+		}							\
+	}
+
+struct w90p910_gpio_chip {
+	struct gpio_chip	chip;
+	void __iomem		*regbase;	/* Base of group register*/
+	spinlock_t 		gpio_lock;
+};
+
+static int w90p910_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct w90p910_gpio_chip *w90p910_gpio = to_w90p910_gpio_chip(chip);
+	void __iomem *pio = w90p910_gpio->regbase + GPIO_IN;
+	unsigned int regval;
+
+	regval = __raw_readl(pio);
+	regval &= GPIO_GPIO(offset);
+
+	return (regval != 0);
+}
+
+static void w90p910_gpio_set(struct gpio_chip *chip, unsigned offset, int val)
+{
+	struct w90p910_gpio_chip *w90p910_gpio = to_w90p910_gpio_chip(chip);
+	void __iomem *pio = w90p910_gpio->regbase + GPIO_OUT;
+	unsigned int regval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&w90p910_gpio->gpio_lock, flags);
+
+	regval = __raw_readl(pio);
+
+	if (val)
+		regval |= GPIO_GPIO(offset);
+	else
+		regval &= ~GPIO_GPIO(offset);
+
+	__raw_writel(regval, pio);
+
+	spin_unlock_irqrestore(&w90p910_gpio->gpio_lock, flags);
+}
+
+static int w90p910_dir_input(struct gpio_chip *chip, unsigned offset)
+{
+	struct w90p910_gpio_chip *w90p910_gpio = to_w90p910_gpio_chip(chip);
+	void __iomem *pio = w90p910_gpio->regbase + GPIO_DIR;
+	unsigned int regval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&w90p910_gpio->gpio_lock, flags);
+
+	regval = __raw_readl(pio);
+	regval &= ~GPIO_GPIO(offset);
+	__raw_writel(regval, pio);
+
+	spin_unlock_irqrestore(&w90p910_gpio->gpio_lock, flags);
+
+	return 0;
+}
+
+static int w90p910_dir_output(struct gpio_chip *chip, unsigned offset, int val)
+{
+	struct w90p910_gpio_chip *w90p910_gpio = to_w90p910_gpio_chip(chip);
+	void __iomem *outreg = w90p910_gpio->regbase + GPIO_OUT;
+	void __iomem *pio = w90p910_gpio->regbase + GPIO_DIR;
+	unsigned int regval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&w90p910_gpio->gpio_lock, flags);
+
+	regval = __raw_readl(pio);
+	regval |= GPIO_GPIO(offset);
+	__raw_writel(regval, pio);
+
+	regval = __raw_readl(outreg);
+
+	if (val)
+		regval |= GPIO_GPIO(offset);
+	else
+		regval &= ~GPIO_GPIO(offset);
+
+	__raw_writel(regval, outreg);
+
+	spin_unlock_irqrestore(&w90p910_gpio->gpio_lock, flags);
+
+	return 0;
+}
+
+static struct w90p910_gpio_chip w90p910_gpio[] = {
+	W90P910_GPIO_CHIP("GROUPC", 0, 16),
+	W90P910_GPIO_CHIP("GROUPD", 16, 10),
+	W90P910_GPIO_CHIP("GROUPE", 26, 14),
+	W90P910_GPIO_CHIP("GROUPF", 40, 10),
+	W90P910_GPIO_CHIP("GROUPG", 50, 17),
+	W90P910_GPIO_CHIP("GROUPH", 67, 8),
+	W90P910_GPIO_CHIP("GROUPI", 75, 17),
+};
+
+void __init w90p910_init_gpio(int nr_group)
+{
+	unsigned	i;
+	struct w90p910_gpio_chip *gpio_chip;
+
+	for (i = 0; i < nr_group; i++) {
+		gpio_chip = &w90p910_gpio[i];
+		spin_lock_init(&gpio_chip->gpio_lock);
+		gpio_chip->regbase = GPIO_BASE + i * GROUPINERV;
+		gpiochip_add(&gpio_chip->chip);
+	}
+}