Merge branch 'for-2.6.36' into for-2.6.37

Fairly simple conflicts, the most serious ones are the i.MX ones which I
suspect now need another rename.

Conflicts:
	arch/arm/mach-mx2/clock_imx27.c
	arch/arm/mach-mx2/devices.c
	arch/arm/mach-omap2/board-rx51-peripherals.c
	arch/arm/mach-omap2/board-zoom2.c
	sound/soc/fsl/mpc5200_dma.c
	sound/soc/fsl/mpc5200_dma.h
	sound/soc/fsl/mpc8610_hpcd.c
	sound/soc/pxa/spitz.c

1 files changed, 227 insertions, 0 deletions

diff --git a/arch/arm/mach-msm/board-trout-gpio.c b/arch/arm/mach-msm/board-trout-gpio.c
new file mode 100644
index 0000000..c50f3af
--- /dev/null
+++ b/arch/arm/mach-msm/board-trout-gpio.c
@@ -0,0 +1,227 @@
+/*
+ * linux/arch/arm/mach-msm/gpio.c
+ *
+ * Copyright (C) 2005 HP Labs
+ * Copyright (C) 2008 Google, Inc.
+ * Copyright (C) 2009 Pavel Machek <pavel@ucw.cz>
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+
+#include "board-trout.h"
+
+static uint8_t trout_int_mask[2] = {
+	[0] = 0xff, /* mask all interrupts */
+	[1] = 0xff,
+};
+static uint8_t trout_sleep_int_mask[] = {
+	[0] = 0xff,
+	[1] = 0xff,
+};
+
+struct msm_gpio_chip {
+	struct gpio_chip	chip;
+	void __iomem		*reg;	/* Base of register bank */
+	u8			shadow;
+};
+
+#define to_msm_gpio_chip(c) container_of(c, struct msm_gpio_chip, chip)
+
+static int msm_gpiolib_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct msm_gpio_chip *msm_gpio = to_msm_gpio_chip(chip);
+	unsigned mask = 1 << offset;
+
+	return !!(readb(msm_gpio->reg) & mask);
+}
+
+static void msm_gpiolib_set(struct gpio_chip *chip, unsigned offset, int val)
+{
+	struct msm_gpio_chip *msm_gpio = to_msm_gpio_chip(chip);
+	unsigned mask = 1 << offset;
+
+	if (val)
+		msm_gpio->shadow |= mask;
+	else
+		msm_gpio->shadow &= ~mask;
+
+	writeb(msm_gpio->shadow, msm_gpio->reg);
+}
+
+static int msm_gpiolib_direction_input(struct gpio_chip *chip,
+					unsigned offset)
+{
+	msm_gpiolib_set(chip, offset, 0);
+	return 0;
+}
+
+static int msm_gpiolib_direction_output(struct gpio_chip *chip,
+					 unsigned offset, int val)
+{
+	msm_gpiolib_set(chip, offset, val);
+	return 0;
+}
+
+#define TROUT_GPIO_BANK(name, reg_num, base_gpio, shadow_val)		\
+	{								\
+		.chip = {						\
+			.label		  = name,			\
+			.direction_input  = msm_gpiolib_direction_input,\
+			.direction_output = msm_gpiolib_direction_output, \
+			.get		  = msm_gpiolib_get,		\
+			.set		  = msm_gpiolib_set,		\
+			.base		  = base_gpio,			\
+			.ngpio		  = 8,				\
+		},							\
+		.reg = (void *) reg_num + TROUT_CPLD_BASE,		\
+		.shadow = shadow_val,					\
+	}
+
+static struct msm_gpio_chip msm_gpio_banks[] = {
+#if defined(CONFIG_MSM_DEBUG_UART1)
+	/* H2W pins <-> UART1 */
+	TROUT_GPIO_BANK("MISC2", 0x00,   TROUT_GPIO_MISC2_BASE, 0x40),
+#else
+	/* H2W pins <-> UART3, Bluetooth <-> UART1 */
+	TROUT_GPIO_BANK("MISC2", 0x00,   TROUT_GPIO_MISC2_BASE, 0x80),
+#endif
+	/* I2C pull */
+	TROUT_GPIO_BANK("MISC3", 0x02,   TROUT_GPIO_MISC3_BASE, 0x04),
+	TROUT_GPIO_BANK("MISC4", 0x04,   TROUT_GPIO_MISC4_BASE, 0),
+	/* mmdi 32k en */
+	TROUT_GPIO_BANK("MISC5", 0x06,   TROUT_GPIO_MISC5_BASE, 0x04),
+	TROUT_GPIO_BANK("INT2", 0x08,    TROUT_GPIO_INT2_BASE,  0),
+	TROUT_GPIO_BANK("MISC1", 0x0a,   TROUT_GPIO_MISC1_BASE, 0),
+	TROUT_GPIO_BANK("VIRTUAL", 0x12, TROUT_GPIO_VIRTUAL_BASE, 0),
+};
+
+static void trout_gpio_irq_ack(unsigned int irq)
+{
+	int bank = TROUT_INT_TO_BANK(irq);
+	uint8_t mask = TROUT_INT_TO_MASK(irq);
+	int reg = TROUT_BANK_TO_STAT_REG(bank);
+	/*printk(KERN_INFO "trout_gpio_irq_ack irq %d\n", irq);*/
+	writeb(mask, TROUT_CPLD_BASE + reg);
+}
+
+static void trout_gpio_irq_mask(unsigned int irq)
+{
+	unsigned long flags;
+	uint8_t reg_val;
+	int bank = TROUT_INT_TO_BANK(irq);
+	uint8_t mask = TROUT_INT_TO_MASK(irq);
+	int reg = TROUT_BANK_TO_MASK_REG(bank);
+
+	local_irq_save(flags);
+	reg_val = trout_int_mask[bank] |= mask;
+	/*printk(KERN_INFO "trout_gpio_irq_mask irq %d => %d:%02x\n",
+	       irq, bank, reg_val);*/
+	writeb(reg_val, TROUT_CPLD_BASE + reg);
+	local_irq_restore(flags);
+}
+
+static void trout_gpio_irq_unmask(unsigned int irq)
+{
+	unsigned long flags;
+	uint8_t reg_val;
+	int bank = TROUT_INT_TO_BANK(irq);
+	uint8_t mask = TROUT_INT_TO_MASK(irq);
+	int reg = TROUT_BANK_TO_MASK_REG(bank);
+
+	local_irq_save(flags);
+	reg_val = trout_int_mask[bank] &= ~mask;
+	/*printk(KERN_INFO "trout_gpio_irq_unmask irq %d => %d:%02x\n",
+	       irq, bank, reg_val);*/
+	writeb(reg_val, TROUT_CPLD_BASE + reg);
+	local_irq_restore(flags);
+}
+
+int trout_gpio_irq_set_wake(unsigned int irq, unsigned int on)
+{
+	unsigned long flags;
+	int bank = TROUT_INT_TO_BANK(irq);
+	uint8_t mask = TROUT_INT_TO_MASK(irq);
+
+	local_irq_save(flags);
+	if(on)
+		trout_sleep_int_mask[bank] &= ~mask;
+	else
+		trout_sleep_int_mask[bank] |= mask;
+	local_irq_restore(flags);
+	return 0;
+}
+
+static void trout_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	int j, m;
+	unsigned v;
+	int bank;
+	int stat_reg;
+	int int_base = TROUT_INT_START;
+	uint8_t int_mask;
+
+	for (bank = 0; bank < 2; bank++) {
+		stat_reg = TROUT_BANK_TO_STAT_REG(bank);
+		v = readb(TROUT_CPLD_BASE + stat_reg);
+		int_mask = trout_int_mask[bank];
+		if (v & int_mask) {
+			writeb(v & int_mask, TROUT_CPLD_BASE + stat_reg);
+			printk(KERN_ERR "trout_gpio_irq_handler: got masked "
+			       "interrupt: %d:%02x\n", bank, v & int_mask);
+		}
+		v &= ~int_mask;
+		while (v) {
+			m = v & -v;
+			j = fls(m) - 1;
+			/*printk(KERN_INFO "msm_gpio_irq_handler %d:%02x %02x b"
+			       "it %d irq %d\n", bank, v, m, j, int_base + j);*/
+			v &= ~m;
+			generic_handle_irq(int_base + j);
+		}
+		int_base += TROUT_INT_BANK0_COUNT;
+	}
+	desc->chip->ack(irq);
+}
+
+static struct irq_chip trout_gpio_irq_chip = {
+	.name      = "troutgpio",
+	.ack       = trout_gpio_irq_ack,
+	.mask      = trout_gpio_irq_mask,
+	.unmask    = trout_gpio_irq_unmask,
+	.set_wake  = trout_gpio_irq_set_wake,
+};
+
+/*
+ * Called from the processor-specific init to enable GPIO pin support.
+ */
+int __init trout_init_gpio(void)
+{
+	int i;
+	for(i = TROUT_INT_START; i <= TROUT_INT_END; i++) {
+		set_irq_chip(i, &trout_gpio_irq_chip);
+		set_irq_handler(i, handle_edge_irq);
+		set_irq_flags(i, IRQF_VALID);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(msm_gpio_banks); i++)
+		gpiochip_add(&msm_gpio_banks[i].chip);
+
+	set_irq_type(MSM_GPIO_TO_INT(17), IRQF_TRIGGER_HIGH);
+	set_irq_chained_handler(MSM_GPIO_TO_INT(17), trout_gpio_irq_handler);
+	set_irq_wake(MSM_GPIO_TO_INT(17), 1);
+
+	return 0;
+}
+
+postcore_initcall(trout_init_gpio);
+