[PATCH v5 00/12] enhance DT support on gpio pxa

[PATCH v5 00/12] enhance DT support on gpio pxa

[Haojian Zhuang]

Changelog:

v5:
* Replace of_find_property() by of_property_read_bool().
* Rename __gpio_is_occupied() & __gpio_is_inverted().
* Avoid to use pxachip as variable name. Use chip instead.

v4:
* Re-oragnize these patches.
* Append document for new properties binding.
* Discard the full support on irq domain. It will be appended in other
  series.

v3:
* Fix the gpio irq issue on legacy platform.
* Discard irq_base & use irq domain instead in pxa_gpio_chip structure.
* Update DTS file since it's depend on latest pinctrl single driver.

v2:
* Fix the build issue without CONFIG_OF
* Append to check PINCTRL_SINGLE because of arch pxa not moved to DT
* Use bool for inverted, ed_mask, gafr variable

[PATCH v5 01/12] gpio: pxa: identify ed mask reg with platform data

[Haojian Zhuang]

Avoid to judge whether edge mask register exists by CPU. Use platform
data to identify it instead. The gpio edge mask register exists in MMP
series SoC.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 arch/arm/mach-mmp/aspenite.c      |    7 +++++++
 arch/arm/mach-mmp/avengers_lite.c |    7 +++++++
 arch/arm/mach-mmp/brownstone.c    |    7 +++++++
 arch/arm/mach-mmp/flint.c         |    7 +++++++
 arch/arm/mach-mmp/gplugd.c        |    7 +++++++
 arch/arm/mach-mmp/tavorevb.c      |    7 +++++++
 arch/arm/mach-mmp/teton_bga.c     |    7 +++++++
 arch/arm/mach-mmp/ttc_dkb.c       |    7 +++++++
 drivers/gpio/gpio-pxa.c           |    9 ++++++++-
 include/linux/gpio-pxa.h          |    1 +
 10 files changed, 65 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-mmp/aspenite.c b/arch/arm/mach-mmp/aspenite.c
index 9f64d56..36f5781 100644
--- a/arch/arm/mach-mmp/aspenite.c
+++ b/arch/arm/mach-mmp/aspenite.c
@@ -9,6 +9,7 @@
  *  publishhed by the Free Software Foundation.
  */
 #include <linux/gpio.h>
+#include <linux/gpio-pxa.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
@@ -110,6 +111,10 @@ static unsigned long common_pin_config[] __initdata = {
 	GPIO121_KP_MKIN4,
 };
 
+static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
+	.ed_mask	= true,
+};
+
 static struct smc91x_platdata smc91x_info = {
 	.flags	= SMC91X_USE_16BIT | SMC91X_NOWAIT,
 };
@@ -248,6 +253,8 @@ static void __init common_init(void)
 	pxa168_add_nand(&aspenite_nand_info);
 	pxa168_add_fb(&aspenite_lcd_info);
 	pxa168_add_keypad(&aspenite_keypad_info);
+	platform_device_add_data(&pxa168_device_gpio, &pxa168_gpio_pdata,
+				 sizeof(struct pxa_gpio_platform_data));
 	platform_device_register(&pxa168_device_gpio);
 
 	/* off-chip devices */
diff --git a/arch/arm/mach-mmp/avengers_lite.c b/arch/arm/mach-mmp/avengers_lite.c
index 1f94957..b8fe447 100644
--- a/arch/arm/mach-mmp/avengers_lite.c
+++ b/arch/arm/mach-mmp/avengers_lite.c
@@ -12,6 +12,7 @@
 
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/gpio-pxa.h>
 #include <linux/platform_device.h>
 
 #include <asm/mach-types.h>
@@ -32,12 +33,18 @@ static unsigned long avengers_lite_pin_config_V16F[] __initdata = {
 	GPIO89_UART2_RXD,
 };
 
+static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
+	.ed_mask	= true,
+};
+
 static void __init avengers_lite_init(void)
 {
 	mfp_config(ARRAY_AND_SIZE(avengers_lite_pin_config_V16F));
 
 	/* on-chip devices */
 	pxa168_add_uart(2);
+	platform_device_add_data(&pxa168_device_gpio, &pxa168_gpio_pdata,
+				 sizeof(struct pxa_gpio_platform_data));
 	platform_device_register(&pxa168_device_gpio);
 }
 
diff --git a/arch/arm/mach-mmp/brownstone.c b/arch/arm/mach-mmp/brownstone.c
index 2358011..d6ea5c4 100644
--- a/arch/arm/mach-mmp/brownstone.c
+++ b/arch/arm/mach-mmp/brownstone.c
@@ -14,6 +14,7 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
+#include <linux/gpio-pxa.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/max8649.h>
 #include <linux/regulator/fixed.h>
@@ -104,6 +105,10 @@ static unsigned long brownstone_pin_config[] __initdata = {
 	GPIO89_GPIO,
 };
 
+static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
+	.ed_mask	= true,
+};
+
 static struct regulator_consumer_supply max8649_supply[] = {
 	REGULATOR_SUPPLY("vcc_core", NULL),
 };
@@ -202,6 +207,8 @@ static void __init brownstone_init(void)
 	/* on-chip devices */
 	mmp2_add_uart(1);
 	mmp2_add_uart(3);
+	platform_device_add_data(&mmp2_device_gpio, &mmp2_gpio_pdata,
+				 sizeof(struct pxa_gpio_platform_data));
 	platform_device_register(&mmp2_device_gpio);
 	mmp2_add_twsi(1, NULL, ARRAY_AND_SIZE(brownstone_twsi1_info));
 	mmp2_add_sdhost(0, &mmp2_sdh_platdata_mmc0); /* SD/MMC */
diff --git a/arch/arm/mach-mmp/flint.c b/arch/arm/mach-mmp/flint.c
index 754c352..0955f44 100644
--- a/arch/arm/mach-mmp/flint.c
+++ b/arch/arm/mach-mmp/flint.c
@@ -16,6 +16,7 @@
 #include <linux/smc91x.h>
 #include <linux/io.h>
 #include <linux/gpio.h>
+#include <linux/gpio-pxa.h>
 #include <linux/interrupt.h>
 
 #include <asm/mach-types.h>
@@ -77,6 +78,10 @@ static unsigned long flint_pin_config[] __initdata = {
 	GPIO160_ND_RDY1,
 };
 
+static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
+	.ed_mask	= true,
+};
+
 static struct smc91x_platdata flint_smc91x_info = {
 	.flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
 };
@@ -111,6 +116,8 @@ static void __init flint_init(void)
 	/* on-chip devices */
 	mmp2_add_uart(1);
 	mmp2_add_uart(2);
+	platform_device_add_data(&mmp2_device_gpio, &mmp2_gpio_pdata,
+				 sizeof(struct pxa_gpio_platform_data));
 	platform_device_register(&mmp2_device_gpio);
 
 	/* off-chip devices */
diff --git a/arch/arm/mach-mmp/gplugd.c b/arch/arm/mach-mmp/gplugd.c
index d1e2d59..2315cce 100644
--- a/arch/arm/mach-mmp/gplugd.c
+++ b/arch/arm/mach-mmp/gplugd.c
@@ -10,6 +10,7 @@
 
 #include <linux/init.h>
 #include <linux/gpio.h>
+#include <linux/gpio-pxa.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
@@ -127,6 +128,10 @@ static unsigned long gplugd_pin_config[] __initdata = {
 	GPIO116_I2S_TXD
 };
 
+static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
+	.ed_mask	= true,
+};
+
 static struct i2c_board_info gplugd_i2c_board_info[] = {
 	{
 		.type = "isl1208",
@@ -185,6 +190,8 @@ static void __init gplugd_init(void)
 	pxa168_add_uart(3);
 	pxa168_add_ssp(1);
 	pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(gplugd_i2c_board_info));
+	platform_device_add_data(&pxa168_device_gpio, &pxa168_gpio_pdata,
+				 sizeof(struct pxa_gpio_platform_data));
 	platform_device_register(&pxa168_device_gpio);
 
 	pxa168_add_eth(&gplugd_eth_platform_data);
diff --git a/arch/arm/mach-mmp/tavorevb.c b/arch/arm/mach-mmp/tavorevb.c
index 4c127d2..eaec649 100644
--- a/arch/arm/mach-mmp/tavorevb.c
+++ b/arch/arm/mach-mmp/tavorevb.c
@@ -8,6 +8,7 @@
  *  publishhed by the Free Software Foundation.
  */
 #include <linux/gpio.h>
+#include <linux/gpio-pxa.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
@@ -60,6 +61,10 @@ static unsigned long tavorevb_pin_config[] __initdata = {
 	DF_RDY0_DF_RDY0,
 };
 
+static struct pxa_gpio_platform_data ttc_dkb_gpio_pdata = {
+	.ed_mask	= true,
+};
+
 static struct smc91x_platdata tavorevb_smc91x_info = {
 	.flags	= SMC91X_USE_16BIT | SMC91X_NOWAIT,
 };
@@ -93,6 +98,8 @@ static void __init tavorevb_init(void)
 
 	/* on-chip devices */
 	pxa910_add_uart(1);
+	platform_device_add_data(&pxa910_device_gpio, &ttc_dkb_gpio_pdata,
+				 sizeof(struct pxa_gpio_platform_data));
 	platform_device_register(&pxa910_device_gpio);
 
 	/* off-chip devices */
diff --git a/arch/arm/mach-mmp/teton_bga.c b/arch/arm/mach-mmp/teton_bga.c
index 8609967..6682100 100644
--- a/arch/arm/mach-mmp/teton_bga.c
+++ b/arch/arm/mach-mmp/teton_bga.c
@@ -16,6 +16,7 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
+#include <linux/gpio-pxa.h>
 #include <linux/input.h>
 #include <linux/platform_data/keypad-pxa27x.h>
 #include <linux/i2c.h>
@@ -49,6 +50,10 @@ static unsigned long teton_bga_pin_config[] __initdata = {
 	GPIO78_GPIO,
 };
 
+static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
+	.ed_mask	= true,
+};
+
 static unsigned int teton_bga_matrix_key_map[] = {
 	KEY(0, 6, KEY_ESC),
 	KEY(0, 7, KEY_ENTER),
@@ -79,6 +84,8 @@ static void __init teton_bga_init(void)
 	pxa168_add_uart(1);
 	pxa168_add_keypad(&teton_bga_keypad_info);
 	pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(teton_bga_i2c_info));
+	platform_device_add_data(&pxa168_device_gpio, &pxa168_gpio_pdata,
+				 sizeof(struct pxa_gpio_platform_data));
 	platform_device_register(&pxa168_device_gpio);
 }
 
diff --git a/arch/arm/mach-mmp/ttc_dkb.c b/arch/arm/mach-mmp/ttc_dkb.c
index 22a9058..d8df90b 100644
--- a/arch/arm/mach-mmp/ttc_dkb.c
+++ b/arch/arm/mach-mmp/ttc_dkb.c
@@ -17,6 +17,7 @@
 #include <linux/interrupt.h>
 #include <linux/i2c/pca953x.h>
 #include <linux/gpio.h>
+#include <linux/gpio-pxa.h>
 #include <linux/mfd/88pm860x.h>
 #include <linux/platform_data/mv_usb.h>
 #include <linux/spi/spi.h>
@@ -75,6 +76,10 @@ static unsigned long ttc_dkb_pin_config[] __initdata = {
 	DF_RDY0_DF_RDY0,
 };
 
+static struct pxa_gpio_platform_data ttc_dkb_gpio_pdata = {
+	.ed_mask	= true,
+};
+
 static struct mtd_partition ttc_dkb_onenand_partitions[] = {
 	{
 		.name		= "bootloader",
@@ -284,6 +289,8 @@ static void __init ttc_dkb_init(void)
 
 	/* off-chip devices */
 	pxa910_add_twsi(0, NULL, ARRAY_AND_SIZE(ttc_dkb_i2c_info));
+	platform_device_add_data(&pxa910_device_gpio, &ttc_dkb_gpio_pdata,
+				 sizeof(struct pxa_gpio_platform_data));
 	platform_add_devices(ARRAY_AND_SIZE(ttc_dkb_devices));
 
 #ifdef CONFIG_USB_MV_UDC
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 9cc108d..59841b1 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -493,6 +493,7 @@ const struct irq_domain_ops pxa_irq_domain_ops = {
 static int pxa_gpio_probe_dt(struct platform_device *pdev)
 {
 	int ret, nr_banks, nr_gpios;
+	struct pxa_gpio_platform_data *pdata;
 	struct device_node *prev, *next, *np = pdev->dev.of_node;
 	const struct of_device_id *of_id =
 				of_match_device(pxa_gpio_dt_ids, &pdev->dev);
@@ -501,6 +502,12 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
 		dev_err(&pdev->dev, "Failed to find gpio controller\n");
 		return -EFAULT;
 	}
+	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return -ENOMEM;
+	pdata->ed_mask = of_property_read_bool(np, "marvell,gpio-ed-mask");
+	/* set the platform data */
+	pdev->dev.platform_data = pdata;
 	gpio_type = (int)of_id->data;
 
 	next = of_get_next_child(np, NULL);
@@ -604,7 +611,7 @@ static int pxa_gpio_probe(struct platform_device *pdev)
 		writel_relaxed(0, c->regbase + GRER_OFFSET);
 		writel_relaxed(~0,c->regbase + GEDR_OFFSET);
 		/* unmask GPIO edge detect for AP side */
-		if (gpio_is_mmp_type(gpio_type))
+		if (info->ed_mask)
 			writel_relaxed(~0, c->regbase + ED_MASK_OFFSET);
 	}
 
diff --git a/include/linux/gpio-pxa.h b/include/linux/gpio-pxa.h
index d755b28..bc5cae5 100644
--- a/include/linux/gpio-pxa.h
+++ b/include/linux/gpio-pxa.h
@@ -14,6 +14,7 @@ extern int pxa_last_gpio;
 extern int pxa_irq_to_gpio(int irq);
 
 struct pxa_gpio_platform_data {
+	bool ed_mask;	/* true means that ed_mask reg is available */
 	int (*gpio_set_wake)(unsigned int gpio, unsigned int on);
 };
 
-- 
1.7.10.4

[PATCH v5 02/12] gpio: pxa: clean code with same variable name

[Haojian Zhuang]

Clean code to avoid similar variable. Now use gc for gpio_chip,
and use c/chip for pxa_gpio_chip. It's used to avoid confusion.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 drivers/gpio/gpio-pxa.c |  113 +++++++++++++++++++++++------------------------
 1 file changed, 55 insertions(+), 58 deletions(-)

diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 59841b1..ad54392 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -69,20 +69,20 @@ static struct device_node *pxa_gpio_of_node;
 #endif
 
 struct pxa_gpio_chip {
-	struct gpio_chip chip;
-	void __iomem	*regbase;
-	char label[10];
+	struct gpio_chip	gc;
+	void __iomem		*regbase;
+	char			label[10];
 
-	unsigned long	irq_mask;
-	unsigned long	irq_edge_rise;
-	unsigned long	irq_edge_fall;
-	int (*set_wake)(unsigned int gpio, unsigned int on);
+	unsigned long		irq_mask;
+	unsigned long		irq_edge_rise;
+	unsigned long		irq_edge_fall;
+	int			(*set_wake)(unsigned int gpio, unsigned int on);
 
 #ifdef CONFIG_PM
-	unsigned long	saved_gplr;
-	unsigned long	saved_gpdr;
-	unsigned long	saved_grer;
-	unsigned long	saved_gfer;
+	unsigned long		saved_gplr;
+	unsigned long		saved_gpdr;
+	unsigned long		saved_grer;
+	unsigned long		saved_gfer;
 #endif
 };
 
@@ -103,9 +103,9 @@ static void __iomem *gpio_reg_base;
 #define for_each_gpio_chip(i, c)			\
 	for (i = 0, c = &pxa_gpio_chips[0]; i <= pxa_last_gpio; i += 32, c++)
 
-static inline void __iomem *gpio_chip_base(struct gpio_chip *c)
+static inline void __iomem *gpio_chip_base(struct gpio_chip *gc)
 {
-	return container_of(c, struct pxa_gpio_chip, chip)->regbase;
+	return container_of(gc, struct pxa_gpio_chip, gc)->regbase;
 }
 
 static inline struct pxa_gpio_chip *gpio_to_pxachip(unsigned gpio)
@@ -141,13 +141,13 @@ static inline int __gpio_is_inverted(int gpio)
  */
 static inline int __gpio_is_occupied(unsigned gpio)
 {
-	struct pxa_gpio_chip *pxachip;
+	struct pxa_gpio_chip *chip;
 	void __iomem *base;
 	unsigned long gafr = 0, gpdr = 0;
 	int ret, af = 0, dir = 0;
 
-	pxachip = gpio_to_pxachip(gpio);
-	base = gpio_chip_base(&pxachip->chip);
+	chip = gpio_to_pxachip(gpio);
+	base = gpio_chip_base(&chip->gc);
 	gpdr = readl_relaxed(base + GPDR_OFFSET);
 
 	switch (gpio_type) {
@@ -170,9 +170,9 @@ static inline int __gpio_is_occupied(unsigned gpio)
 	return ret;
 }
 
-static int pxa_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+static int pxa_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
 {
-	return chip->base + offset + irq_base;
+	return gc->base + offset + irq_base;
 }
 
 int pxa_irq_to_gpio(int irq)
@@ -180,16 +180,16 @@ int pxa_irq_to_gpio(int irq)
 	return irq - irq_base;
 }
 
-static int pxa_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+static int pxa_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
 {
-	void __iomem *base = gpio_chip_base(chip);
+	void __iomem *base = gpio_chip_base(gc);
 	uint32_t value, mask = 1 << offset;
 	unsigned long flags;
 
 	spin_lock_irqsave(&gpio_lock, flags);
 
 	value = readl_relaxed(base + GPDR_OFFSET);
-	if (__gpio_is_inverted(chip->base + offset))
+	if (__gpio_is_inverted(gc->base + offset))
 		value |= mask;
 	else
 		value &= ~mask;
@@ -199,10 +199,10 @@ static int pxa_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 	return 0;
 }
 
-static int pxa_gpio_direction_output(struct gpio_chip *chip,
+static int pxa_gpio_direction_output(struct gpio_chip *gc,
 				     unsigned offset, int value)
 {
-	void __iomem *base = gpio_chip_base(chip);
+	void __iomem *base = gpio_chip_base(gc);
 	uint32_t tmp, mask = 1 << offset;
 	unsigned long flags;
 
@@ -211,7 +211,7 @@ static int pxa_gpio_direction_output(struct gpio_chip *chip,
 	spin_lock_irqsave(&gpio_lock, flags);
 
 	tmp = readl_relaxed(base + GPDR_OFFSET);
-	if (__gpio_is_inverted(chip->base + offset))
+	if (__gpio_is_inverted(gc->base + offset))
 		tmp &= ~mask;
 	else
 		tmp |= mask;
@@ -221,15 +221,15 @@ static int pxa_gpio_direction_output(struct gpio_chip *chip,
 	return 0;
 }
 
-static int pxa_gpio_get(struct gpio_chip *chip, unsigned offset)
+static int pxa_gpio_get(struct gpio_chip *gc, unsigned offset)
 {
-	return readl_relaxed(gpio_chip_base(chip) + GPLR_OFFSET) & (1 << offset);
+	return readl_relaxed(gpio_chip_base(gc) + GPLR_OFFSET) & (1 << offset);
 }
 
-static void pxa_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+static void pxa_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
 {
-	writel_relaxed(1 << offset, gpio_chip_base(chip) +
-				(value ? GPSR_OFFSET : GPCR_OFFSET));
+	writel_relaxed(1 << offset, gpio_chip_base(gc) +
+		       (value ? GPSR_OFFSET : GPCR_OFFSET));
 }
 
 #ifdef CONFIG_OF_GPIO
@@ -240,7 +240,7 @@ static int pxa_gpio_of_xlate(struct gpio_chip *gc,
 	if (gpiospec->args[0] > pxa_last_gpio)
 		return -EINVAL;
 
-	if (gc != &pxa_gpio_chips[gpiospec->args[0] / 32].chip)
+	if (gc != &pxa_gpio_chips[gpiospec->args[0] / 32].gc)
 		return -EINVAL;
 
 	if (flags)
@@ -250,42 +250,43 @@ static int pxa_gpio_of_xlate(struct gpio_chip *gc,
 }
 #endif
 
-static int pxa_init_gpio_chip(int gpio_end,
-					int (*set_wake)(unsigned int, unsigned int))
+static int pxa_init_gpio_chip(struct platform_device *pdev, int gpio_end)
 {
 	int i, gpio, nbanks = gpio_to_bank(gpio_end) + 1;
 	struct pxa_gpio_chip *chips;
+	struct pxa_gpio_platform_data *pdata = dev_get_platdata(&pdev->dev);
 
-	chips = kzalloc(nbanks * sizeof(struct pxa_gpio_chip), GFP_KERNEL);
-	if (chips == NULL) {
-		pr_err("%s: failed to allocate GPIO chips\n", __func__);
+	chips = devm_kzalloc(&pdev->dev, nbanks * sizeof(*chips), GFP_KERNEL);
+	if (!chips) {
+		dev_err(&pdev->dev, "failed to allocate GPIO chips\n");
 		return -ENOMEM;
 	}
 
 	for (i = 0, gpio = 0; i < nbanks; i++, gpio += 32) {
-		struct gpio_chip *c = &chips[i].chip;
+		struct gpio_chip *gc = &chips[i].gc;
 
 		sprintf(chips[i].label, "gpio-%d", i);
 		chips[i].regbase = gpio_reg_base + BANK_OFF(i);
-		chips[i].set_wake = set_wake;
+		if (pdata->gpio_set_wake)
+			chips[i].set_wake = pdata->gpio_set_wake;
 
-		c->base  = gpio;
-		c->label = chips[i].label;
+		gc->base  = gpio;
+		gc->label = chips[i].label;
 
-		c->direction_input  = pxa_gpio_direction_input;
-		c->direction_output = pxa_gpio_direction_output;
-		c->get = pxa_gpio_get;
-		c->set = pxa_gpio_set;
-		c->to_irq = pxa_gpio_to_irq;
+		gc->direction_input  = pxa_gpio_direction_input;
+		gc->direction_output = pxa_gpio_direction_output;
+		gc->get = pxa_gpio_get;
+		gc->set = pxa_gpio_set;
+		gc->to_irq = pxa_gpio_to_irq;
 #ifdef CONFIG_OF_GPIO
-		c->of_node = pxa_gpio_of_node;
-		c->of_xlate = pxa_gpio_of_xlate;
-		c->of_gpio_n_cells = 2;
+		gc->of_node = pxa_gpio_of_node;
+		gc->of_xlate = pxa_gpio_of_xlate;
+		gc->of_gpio_n_cells = 2;
 #endif
 
 		/* number of GPIOs on last bank may be less than 32 */
-		c->ngpio = (gpio + 31 > gpio_end) ? (gpio_end - gpio + 1) : 32;
-		gpiochip_add(c);
+		gc->ngpio = (gpio + 31 > gpio_end) ? (gpio_end - gpio + 1) : 32;
+		gpiochip_add(gc);
 	}
 	pxa_gpio_chips = chips;
 	return 0;
@@ -364,7 +365,7 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc)
 	do {
 		loop = 0;
 		for_each_gpio_chip(gpio, c) {
-			gpio_base = c->chip.base;
+			gpio_base = c->gc.base;
 
 			gedr = readl_relaxed(c->regbase + GEDR_OFFSET);
 			gedr = gedr & c->irq_mask;
@@ -492,7 +493,7 @@ const struct irq_domain_ops pxa_irq_domain_ops = {
 
 static int pxa_gpio_probe_dt(struct platform_device *pdev)
 {
-	int ret, nr_banks, nr_gpios;
+	int nr_banks, nr_gpios;
 	struct pxa_gpio_platform_data *pdata;
 	struct device_node *prev, *next, *np = pdev->dev.of_node;
 	const struct of_device_id *of_id =
@@ -514,8 +515,7 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
 	prev = next;
 	if (!next) {
 		dev_err(&pdev->dev, "Failed to find child gpio node\n");
-		ret = -EINVAL;
-		goto err;
+		return -EINVAL;
 	}
 	for (nr_banks = 1; ; nr_banks++) {
 		next = of_get_next_child(np, prev);
@@ -530,15 +530,12 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
 	irq_base = irq_alloc_descs(-1, 0, nr_gpios, 0);
 	if (irq_base < 0) {
 		dev_err(&pdev->dev, "Failed to allocate IRQ numbers\n");
-		goto err;
+		return -EINVAL;
 	}
 	domain = irq_domain_add_legacy(np, nr_gpios, irq_base, 0,
 				       &pxa_irq_domain_ops, NULL);
 	pxa_gpio_of_node = np;
 	return 0;
-err:
-	iounmap(gpio_reg_base);
-	return ret;
 }
 #else
 #define pxa_gpio_probe_dt(pdev)		(-1)
@@ -603,7 +600,7 @@ static int pxa_gpio_probe(struct platform_device *pdev)
 
 	/* Initialize GPIO chips */
 	info = dev_get_platdata(&pdev->dev);
-	pxa_init_gpio_chip(pxa_last_gpio, info ? info->gpio_set_wake : NULL);
+	pxa_init_gpio_chip(pdev, pxa_last_gpio);
 
 	/* clear all GPIO edge detects */
 	for_each_gpio_chip(gpio, c) {
-- 
1.7.10.4

[PATCH v5 03/12] gpio: pxa: rename function name

[Haojian Zhuang]

Rename __gpio_is_occupied() & __gpio_is_inverted() to
pxa_gpio_is_occupied() & pxa_gpio_is_inverted().

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 drivers/gpio/gpio-pxa.c |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index ad54392..9519ab9 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -126,7 +126,7 @@ static inline int gpio_is_mmp_type(int type)
 /* GPIO86/87/88/89 on PXA26x have their direction bits in PXA_GPDR(2 inverted,
  * as well as their Alternate Function value being '1' for GPIO in GAFRx.
  */
-static inline int __gpio_is_inverted(int gpio)
+static inline int pxa_gpio_is_inverted(int gpio)
 {
 	if ((gpio_type == PXA26X_GPIO) && (gpio > 85))
 		return 1;
@@ -139,7 +139,7 @@ static inline int __gpio_is_inverted(int gpio)
  * is attributed as "occupied" here (I know this terminology isn't
  * accurate, you are welcome to propose a better one :-)
  */
-static inline int __gpio_is_occupied(unsigned gpio)
+static inline int pxa_gpio_is_occupied(unsigned gpio)
 {
 	struct pxa_gpio_chip *chip;
 	void __iomem *base;
@@ -158,7 +158,7 @@ static inline int __gpio_is_occupied(unsigned gpio)
 		af = (gafr >> ((gpio & 0xf) * 2)) & 0x3;
 		dir = gpdr & GPIO_bit(gpio);
 
-		if (__gpio_is_inverted(gpio))
+		if (pxa_gpio_is_inverted(gpio))
 			ret = (af != 1) || (dir == 0);
 		else
 			ret = (af != 0) || (dir != 0);
@@ -189,7 +189,7 @@ static int pxa_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
 	spin_lock_irqsave(&gpio_lock, flags);
 
 	value = readl_relaxed(base + GPDR_OFFSET);
-	if (__gpio_is_inverted(gc->base + offset))
+	if (pxa_gpio_is_inverted(gc->base + offset))
 		value |= mask;
 	else
 		value &= ~mask;
@@ -211,7 +211,7 @@ static int pxa_gpio_direction_output(struct gpio_chip *gc,
 	spin_lock_irqsave(&gpio_lock, flags);
 
 	tmp = readl_relaxed(base + GPDR_OFFSET);
-	if (__gpio_is_inverted(gc->base + offset))
+	if (pxa_gpio_is_inverted(gc->base + offset))
 		tmp &= ~mask;
 	else
 		tmp |= mask;
@@ -322,7 +322,7 @@ static int pxa_gpio_irq_type(struct irq_data *d, unsigned int type)
 		if ((c->irq_edge_rise | c->irq_edge_fall) & GPIO_bit(gpio))
 			return 0;
 
-		if (__gpio_is_occupied(gpio))
+		if (pxa_gpio_is_occupied(gpio))
 			return 0;
 
 		type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
@@ -330,7 +330,7 @@ static int pxa_gpio_irq_type(struct irq_data *d, unsigned int type)
 
 	gpdr = readl_relaxed(c->regbase + GPDR_OFFSET);
 
-	if (__gpio_is_inverted(gpio))
+	if (pxa_gpio_is_inverted(gpio))
 		writel_relaxed(gpdr | mask,  c->regbase + GPDR_OFFSET);
 	else
 		writel_relaxed(gpdr & ~mask, c->regbase + GPDR_OFFSET);
-- 
1.7.10.4

[PATCH v5 04/12] gpio: pxa: use platform data for gpio inverted

[Haojian Zhuang]

Avoid to judge whether gpio is inverted by identifying cpu in
gpio driver. Move this into platform data of gpio driver.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 arch/arm/mach-pxa/pxa25x.c |    3 +++
 drivers/gpio/gpio-pxa.c    |   28 ++++++++++++++++++----------
 include/linux/gpio-pxa.h   |    1 +
 3 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 3f5171e..9c9c224 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -340,6 +340,9 @@ void __init pxa25x_map_io(void)
 }
 
 static struct pxa_gpio_platform_data pxa25x_gpio_info __initdata = {
+#ifdef CONFIG_CPU_PXA26x
+	.inverted = true,
+#endif
 	.gpio_set_wake = gpio_set_wake,
 };
 
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 9519ab9..735aa3e 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -71,6 +71,7 @@ static struct device_node *pxa_gpio_of_node;
 struct pxa_gpio_chip {
 	struct gpio_chip	gc;
 	void __iomem		*regbase;
+	bool			inverted;
 	char			label[10];
 
 	unsigned long		irq_mask;
@@ -126,9 +127,9 @@ static inline int gpio_is_mmp_type(int type)
 /* GPIO86/87/88/89 on PXA26x have their direction bits in PXA_GPDR(2 inverted,
  * as well as their Alternate Function value being '1' for GPIO in GAFRx.
  */
-static inline int pxa_gpio_is_inverted(int gpio)
+static inline int pxa_gpio_is_inverted(struct pxa_gpio_chip *chip, int gpio)
 {
-	if ((gpio_type == PXA26X_GPIO) && (gpio > 85))
+	if ((chip->inverted) && (gpio > 85))
 		return 1;
 	return 0;
 }
@@ -139,14 +140,12 @@ static inline int pxa_gpio_is_inverted(int gpio)
  * is attributed as "occupied" here (I know this terminology isn't
  * accurate, you are welcome to propose a better one :-)
  */
-static inline int pxa_gpio_is_occupied(unsigned gpio)
+static inline int pxa_gpio_is_occupied(struct pxa_gpio_chip *chip, unsigned gpio)
 {
-	struct pxa_gpio_chip *chip;
 	void __iomem *base;
 	unsigned long gafr = 0, gpdr = 0;
 	int ret, af = 0, dir = 0;
 
-	chip = gpio_to_pxachip(gpio);
 	base = gpio_chip_base(&chip->gc);
 	gpdr = readl_relaxed(base + GPDR_OFFSET);
 
@@ -158,7 +157,7 @@ static inline int pxa_gpio_is_occupied(unsigned gpio)
 		af = (gafr >> ((gpio & 0xf) * 2)) & 0x3;
 		dir = gpdr & GPIO_bit(gpio);
 
-		if (pxa_gpio_is_inverted(gpio))
+		if (pxa_gpio_is_inverted(chip, gpio))
 			ret = (af != 1) || (dir == 0);
 		else
 			ret = (af != 0) || (dir != 0);
@@ -183,13 +182,16 @@ int pxa_irq_to_gpio(int irq)
 static int pxa_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
 {
 	void __iomem *base = gpio_chip_base(gc);
+	struct pxa_gpio_chip *chip;
 	uint32_t value, mask = 1 << offset;
 	unsigned long flags;
 
+	chip = container_of(gc, struct pxa_gpio_chip, gc);
+
 	spin_lock_irqsave(&gpio_lock, flags);
 
 	value = readl_relaxed(base + GPDR_OFFSET);
-	if (pxa_gpio_is_inverted(gc->base + offset))
+	if (pxa_gpio_is_inverted(chip, gc->base + offset))
 		value |= mask;
 	else
 		value &= ~mask;
@@ -203,15 +205,17 @@ static int pxa_gpio_direction_output(struct gpio_chip *gc,
 				     unsigned offset, int value)
 {
 	void __iomem *base = gpio_chip_base(gc);
+	struct pxa_gpio_chip *chip;
 	uint32_t tmp, mask = 1 << offset;
 	unsigned long flags;
 
+	chip = container_of(gc, struct pxa_gpio_chip, gc);
 	writel_relaxed(mask, base + (value ? GPSR_OFFSET : GPCR_OFFSET));
 
 	spin_lock_irqsave(&gpio_lock, flags);
 
 	tmp = readl_relaxed(base + GPDR_OFFSET);
-	if (pxa_gpio_is_inverted(gc->base + offset))
+	if (pxa_gpio_is_inverted(chip, gc->base + offset))
 		tmp &= ~mask;
 	else
 		tmp |= mask;
@@ -322,7 +326,7 @@ static int pxa_gpio_irq_type(struct irq_data *d, unsigned int type)
 		if ((c->irq_edge_rise | c->irq_edge_fall) & GPIO_bit(gpio))
 			return 0;
 
-		if (pxa_gpio_is_occupied(gpio))
+		if (pxa_gpio_is_occupied(c, gpio))
 			return 0;
 
 		type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
@@ -330,7 +334,7 @@ static int pxa_gpio_irq_type(struct irq_data *d, unsigned int type)
 
 	gpdr = readl_relaxed(c->regbase + GPDR_OFFSET);
 
-	if (pxa_gpio_is_inverted(gpio))
+	if (pxa_gpio_is_inverted(c, gpio))
 		writel_relaxed(gpdr | mask,  c->regbase + GPDR_OFFSET);
 	else
 		writel_relaxed(gpdr & ~mask, c->regbase + GPDR_OFFSET);
@@ -507,6 +511,8 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
 	if (!pdata)
 		return -ENOMEM;
 	pdata->ed_mask = of_property_read_bool(np, "marvell,gpio-ed-mask");
+	/* It's only valid for PXA26x */
+	pdata->inverted = of_property_read_bool(np, "marvell,gpio-inverted");
 	/* set the platform data */
 	pdev->dev.platform_data = pdata;
 	gpio_type = (int)of_id->data;
@@ -610,6 +616,8 @@ static int pxa_gpio_probe(struct platform_device *pdev)
 		/* unmask GPIO edge detect for AP side */
 		if (info->ed_mask)
 			writel_relaxed(~0, c->regbase + ED_MASK_OFFSET);
+		/* update for gpio inverted */
+		c->inverted = info->inverted;
 	}
 
 	if (!use_of) {
diff --git a/include/linux/gpio-pxa.h b/include/linux/gpio-pxa.h
index bc5cae5..759e865 100644
--- a/include/linux/gpio-pxa.h
+++ b/include/linux/gpio-pxa.h
@@ -15,6 +15,7 @@ extern int pxa_irq_to_gpio(int irq);
 
 struct pxa_gpio_platform_data {
 	bool ed_mask;	/* true means that ed_mask reg is available */
+	bool inverted;	/* only valid for PXA26x */
 	int (*gpio_set_wake)(unsigned int gpio, unsigned int on);
 };
 
-- 
1.7.10.4

[PATCH v5 05/12] gpio: pxa: remove gpio_type

[Haojian Zhuang]

Since gpio_type is used to check whether gafr register is valid. So
move it into platform data.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Tested-by: Igor Grinberg <grinberg@compulab.co.il>
---
 arch/arm/mach-pxa/pxa25x.c |    1 +
 arch/arm/mach-pxa/pxa27x.c |    1 +
 drivers/gpio/gpio-pxa.c    |   54 +++++++++-----------------------------------
 include/linux/gpio-pxa.h   |    1 +
 4 files changed, 14 insertions(+), 43 deletions(-)

diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 9c9c224..ef1bb41 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -343,6 +343,7 @@ static struct pxa_gpio_platform_data pxa25x_gpio_info __initdata = {
 #ifdef CONFIG_CPU_PXA26x
 	.inverted = true,
 #endif
+	.gafr = true,
 	.gpio_set_wake = gpio_set_wake,
 };
 
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 3203a9f..7f1f18a 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -431,6 +431,7 @@ void __init pxa27x_set_i2c_power_info(struct i2c_pxa_platform_data *info)
 }
 
 static struct pxa_gpio_platform_data pxa27x_gpio_info __initdata = {
+	.gafr = true,
 	.gpio_set_wake = gpio_set_wake,
 };
 
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 735aa3e..8584fc0 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -72,6 +72,7 @@ struct pxa_gpio_chip {
 	struct gpio_chip	gc;
 	void __iomem		*regbase;
 	bool			inverted;
+	bool			gafr;
 	char			label[10];
 
 	unsigned long		irq_mask;
@@ -87,18 +88,8 @@ struct pxa_gpio_chip {
 #endif
 };
 
-enum {
-	PXA25X_GPIO = 0,
-	PXA26X_GPIO,
-	PXA27X_GPIO,
-	PXA3XX_GPIO,
-	PXA93X_GPIO,
-	MMP_GPIO = 0x10,
-};
-
 static DEFINE_SPINLOCK(gpio_lock);
 static struct pxa_gpio_chip *pxa_gpio_chips;
-static int gpio_type;
 static void __iomem *gpio_reg_base;
 
 #define for_each_gpio_chip(i, c)			\
@@ -114,16 +105,6 @@ static inline struct pxa_gpio_chip *gpio_to_pxachip(unsigned gpio)
 	return &pxa_gpio_chips[gpio_to_bank(gpio)];
 }
 
-static inline int gpio_is_pxa_type(int type)
-{
-	return (type & MMP_GPIO) == 0;
-}
-
-static inline int gpio_is_mmp_type(int type)
-{
-	return (type & MMP_GPIO) != 0;
-}
-
 /* GPIO86/87/88/89 on PXA26x have their direction bits in PXA_GPDR(2 inverted,
  * as well as their Alternate Function value being '1' for GPIO in GAFRx.
  */
@@ -149,10 +130,7 @@ static inline int pxa_gpio_is_occupied(struct pxa_gpio_chip *chip, unsigned gpio
 	base = gpio_chip_base(&chip->gc);
 	gpdr = readl_relaxed(base + GPDR_OFFSET);
 
-	switch (gpio_type) {
-	case PXA25X_GPIO:
-	case PXA26X_GPIO:
-	case PXA27X_GPIO:
+	if (chip->gafr) {
 		gafr = readl_relaxed(base + GAFR_OFFSET);
 		af = (gafr >> ((gpio & 0xf) * 2)) & 0x3;
 		dir = gpdr & GPIO_bit(gpio);
@@ -161,10 +139,8 @@ static inline int pxa_gpio_is_occupied(struct pxa_gpio_chip *chip, unsigned gpio
 			ret = (af != 1) || (dir == 0);
 		else
 			ret = (af != 0) || (dir != 0);
-		break;
-	default:
+	} else {
 		ret = gpdr & GPIO_bit(gpio);
-		break;
 	}
 	return ret;
 }
@@ -445,30 +421,23 @@ static int pxa_gpio_nums(void)
 	if (cpu_is_pxa25x()) {
 #ifdef CONFIG_CPU_PXA26x
 		count = 89;
-		gpio_type = PXA26X_GPIO;
 #elif defined(CONFIG_PXA25x)
 		count = 84;
-		gpio_type = PXA26X_GPIO;
 #endif /* CONFIG_CPU_PXA26x */
 	} else if (cpu_is_pxa27x()) {
 		count = 120;
-		gpio_type = PXA27X_GPIO;
 	} else if (cpu_is_pxa93x()) {
 		count = 191;
-		gpio_type = PXA93X_GPIO;
 	} else if (cpu_is_pxa3xx()) {
 		count = 127;
-		gpio_type = PXA3XX_GPIO;
 	}
 #endif /* CONFIG_ARCH_PXA */
 
 #ifdef CONFIG_ARCH_MMP
 	if (cpu_is_pxa168() || cpu_is_pxa910()) {
 		count = 127;
-		gpio_type = MMP_GPIO;
 	} else if (cpu_is_mmp2()) {
 		count = 191;
-		gpio_type = MMP_GPIO;
 	}
 #endif /* CONFIG_ARCH_MMP */
 	return count;
@@ -477,7 +446,7 @@ static int pxa_gpio_nums(void)
 #ifdef CONFIG_OF
 static struct of_device_id pxa_gpio_dt_ids[] = {
 	{ .compatible = "mrvl,pxa-gpio" },
-	{ .compatible = "mrvl,mmp-gpio", .data = (void *)MMP_GPIO },
+	{ .compatible = "mrvl,mmp-gpio" },
 	{}
 };
 
@@ -515,7 +484,6 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
 	pdata->inverted = of_property_read_bool(np, "marvell,gpio-inverted");
 	/* set the platform data */
 	pdev->dev.platform_data = pdata;
-	gpio_type = (int)of_id->data;
 
 	next = of_get_next_child(np, NULL);
 	prev = next;
@@ -560,12 +528,11 @@ static int pxa_gpio_probe(struct platform_device *pdev)
 	if (ret < 0) {
 		pxa_last_gpio = pxa_gpio_nums();
 #ifdef CONFIG_ARCH_PXA
-		if (gpio_is_pxa_type(gpio_type))
-			irq_base = PXA_GPIO_TO_IRQ(0);
-#endif
-#ifdef CONFIG_ARCH_MMP
-		if (gpio_is_mmp_type(gpio_type))
-			irq_base = MMP_GPIO_TO_IRQ(0);
+		irq_base = PXA_GPIO_TO_IRQ(0);
+#elif defined(CONFIG_ARCH_MMP)
+		irq_base = MMP_GPIO_TO_IRQ(0);
+#else
+#error "gpio-pxa driver can't be used for your architecture"
 #endif
 	} else {
 		use_of = 1;
@@ -616,8 +583,9 @@ static int pxa_gpio_probe(struct platform_device *pdev)
 		/* unmask GPIO edge detect for AP side */
 		if (info->ed_mask)
 			writel_relaxed(~0, c->regbase + ED_MASK_OFFSET);
-		/* update for gpio inverted */
+		/* update for gpio inverted & gafr */
 		c->inverted = info->inverted;
+		c->gafr = info->gafr;
 	}
 
 	if (!use_of) {
diff --git a/include/linux/gpio-pxa.h b/include/linux/gpio-pxa.h
index 759e865..a5670c5 100644
--- a/include/linux/gpio-pxa.h
+++ b/include/linux/gpio-pxa.h
@@ -16,6 +16,7 @@ extern int pxa_irq_to_gpio(int irq);
 struct pxa_gpio_platform_data {
 	bool ed_mask;	/* true means that ed_mask reg is available */
 	bool inverted;	/* only valid for PXA26x */
+	bool gafr;	/* only valid for PXA25x/PXA26x/PXA27x */
 	int (*gpio_set_wake)(unsigned int gpio, unsigned int on);
 };
 
-- 
1.7.10.4

[PATCH v5 06/12] gpio: pxa: define nr gpios in platform data

[Haojian Zhuang]

Avoid to identify gpio numbers in gpio driver. Identify it in platform data
instead. So we can remove code of identifying cpu.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Tested-by: Igor Grinberg <grinberg@compulab.co.il>
---
 arch/arm/mach-mmp/aspenite.c      |    1 +
 arch/arm/mach-mmp/avengers_lite.c |    1 +
 arch/arm/mach-mmp/brownstone.c    |    1 +
 arch/arm/mach-mmp/flint.c         |    1 +
 arch/arm/mach-mmp/gplugd.c        |    1 +
 arch/arm/mach-mmp/tavorevb.c      |    1 +
 arch/arm/mach-mmp/teton_bga.c     |    1 +
 arch/arm/mach-mmp/ttc_dkb.c       |    1 +
 arch/arm/mach-pxa/pxa25x.c        |    3 +++
 arch/arm/mach-pxa/pxa27x.c        |    1 +
 arch/arm/mach-pxa/pxa3xx.c        |   17 ++++++++++--
 drivers/gpio/gpio-pxa.c           |   53 ++++++++-----------------------------
 include/linux/gpio-pxa.h          |    1 +
 13 files changed, 39 insertions(+), 44 deletions(-)

diff --git a/arch/arm/mach-mmp/aspenite.c b/arch/arm/mach-mmp/aspenite.c
index 36f5781..a3e42dc 100644
--- a/arch/arm/mach-mmp/aspenite.c
+++ b/arch/arm/mach-mmp/aspenite.c
@@ -112,6 +112,7 @@ static unsigned long common_pin_config[] __initdata = {
 };
 
 static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
+	.nr_gpios	= 128,
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-mmp/avengers_lite.c b/arch/arm/mach-mmp/avengers_lite.c
index b8fe447..1ea6502 100644
--- a/arch/arm/mach-mmp/avengers_lite.c
+++ b/arch/arm/mach-mmp/avengers_lite.c
@@ -34,6 +34,7 @@ static unsigned long avengers_lite_pin_config_V16F[] __initdata = {
 };
 
 static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
+	.nr_gpios	= 128,
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-mmp/brownstone.c b/arch/arm/mach-mmp/brownstone.c
index d6ea5c4..a32156f 100644
--- a/arch/arm/mach-mmp/brownstone.c
+++ b/arch/arm/mach-mmp/brownstone.c
@@ -106,6 +106,7 @@ static unsigned long brownstone_pin_config[] __initdata = {
 };
 
 static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
+	.nr_gpios	= 192,
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-mmp/flint.c b/arch/arm/mach-mmp/flint.c
index 0955f44..3f301b5 100644
--- a/arch/arm/mach-mmp/flint.c
+++ b/arch/arm/mach-mmp/flint.c
@@ -79,6 +79,7 @@ static unsigned long flint_pin_config[] __initdata = {
 };
 
 static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
+	.nr_gpios	= 192,
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-mmp/gplugd.c b/arch/arm/mach-mmp/gplugd.c
index 2315cce..019b178 100644
--- a/arch/arm/mach-mmp/gplugd.c
+++ b/arch/arm/mach-mmp/gplugd.c
@@ -129,6 +129,7 @@ static unsigned long gplugd_pin_config[] __initdata = {
 };
 
 static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
+	.nr_gpios	= 128,
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-mmp/tavorevb.c b/arch/arm/mach-mmp/tavorevb.c
index eaec649..6e8cf80 100644
--- a/arch/arm/mach-mmp/tavorevb.c
+++ b/arch/arm/mach-mmp/tavorevb.c
@@ -62,6 +62,7 @@ static unsigned long tavorevb_pin_config[] __initdata = {
 };
 
 static struct pxa_gpio_platform_data ttc_dkb_gpio_pdata = {
+	.nr_gpios	= 128,
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-mmp/teton_bga.c b/arch/arm/mach-mmp/teton_bga.c
index 6682100..b5146bb 100644
--- a/arch/arm/mach-mmp/teton_bga.c
+++ b/arch/arm/mach-mmp/teton_bga.c
@@ -51,6 +51,7 @@ static unsigned long teton_bga_pin_config[] __initdata = {
 };
 
 static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
+	.nr_gpios	= 128,
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-mmp/ttc_dkb.c b/arch/arm/mach-mmp/ttc_dkb.c
index d8df90b..387e3f8 100644
--- a/arch/arm/mach-mmp/ttc_dkb.c
+++ b/arch/arm/mach-mmp/ttc_dkb.c
@@ -77,6 +77,7 @@ static unsigned long ttc_dkb_pin_config[] __initdata = {
 };
 
 static struct pxa_gpio_platform_data ttc_dkb_gpio_pdata = {
+	.nr_gpios	= 128,
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index ef1bb41..52f94f3 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -342,6 +342,9 @@ void __init pxa25x_map_io(void)
 static struct pxa_gpio_platform_data pxa25x_gpio_info __initdata = {
 #ifdef CONFIG_CPU_PXA26x
 	.inverted = true,
+	.nr_gpios = 90,
+#else
+	.nr_gpios = 85,
 #endif
 	.gafr = true,
 	.gpio_set_wake = gpio_set_wake,
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 7f1f18a..619b2f2 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -432,6 +432,7 @@ void __init pxa27x_set_i2c_power_info(struct i2c_pxa_platform_data *info)
 
 static struct pxa_gpio_platform_data pxa27x_gpio_info __initdata = {
 	.gafr = true,
+	.nr_gpios = 121,
 	.gpio_set_wake = gpio_set_wake,
 };
 
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 656a1bb..f6bff16 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -15,6 +15,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/gpio-pxa.h>
 #include <linux/pm.h>
 #include <linux/platform_device.h>
 #include <linux/irq.h>
@@ -435,6 +436,10 @@ void __init pxa3xx_set_i2c_power_info(struct i2c_pxa_platform_data *info)
 	pxa_register_device(&pxa3xx_device_i2c_power, info);
 }
 
+static struct pxa_gpio_platform_data pxa3xx_gpio_info __initdata = {
+	.nr_gpios = 128,
+};
+
 static struct platform_device *devices[] __initdata = {
 	&pxa_device_gpio,
 	&pxa27x_device_udc,
@@ -482,8 +487,16 @@ static int __init pxa3xx_init(void)
 		register_syscore_ops(&pxa3xx_mfp_syscore_ops);
 		register_syscore_ops(&pxa3xx_clock_syscore_ops);
 
-		if (!of_have_populated_dt())
-			ret = platform_add_devices(devices, ARRAY_SIZE(devices));
+		if (!of_have_populated_dt()) {
+			if (cpu_is_pxa93x())
+				pxa3xx_gpio_info.nr_gpios = 192;
+			ret = platform_device_add_data(&pxa_device_gpio,
+					&pxa3xx_gpio_info,
+					sizeof(struct pxa_gpio_platform_data));
+			if (!ret)
+				ret = platform_add_devices(devices,
+							   ARRAY_SIZE(devices));
+		}
 	}
 
 	return ret;
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 8584fc0..65839a7 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -413,36 +413,6 @@ static struct irq_chip pxa_muxed_gpio_chip = {
 	.irq_set_wake	= pxa_gpio_set_wake,
 };
 
-static int pxa_gpio_nums(void)
-{
-	int count = 0;
-
-#ifdef CONFIG_ARCH_PXA
-	if (cpu_is_pxa25x()) {
-#ifdef CONFIG_CPU_PXA26x
-		count = 89;
-#elif defined(CONFIG_PXA25x)
-		count = 84;
-#endif /* CONFIG_CPU_PXA26x */
-	} else if (cpu_is_pxa27x()) {
-		count = 120;
-	} else if (cpu_is_pxa93x()) {
-		count = 191;
-	} else if (cpu_is_pxa3xx()) {
-		count = 127;
-	}
-#endif /* CONFIG_ARCH_PXA */
-
-#ifdef CONFIG_ARCH_MMP
-	if (cpu_is_pxa168() || cpu_is_pxa910()) {
-		count = 127;
-	} else if (cpu_is_mmp2()) {
-		count = 191;
-	}
-#endif /* CONFIG_ARCH_MMP */
-	return count;
-}
-
 #ifdef CONFIG_OF
 static struct of_device_id pxa_gpio_dt_ids[] = {
 	{ .compatible = "mrvl,pxa-gpio" },
@@ -466,7 +436,7 @@ const struct irq_domain_ops pxa_irq_domain_ops = {
 
 static int pxa_gpio_probe_dt(struct platform_device *pdev)
 {
-	int nr_banks, nr_gpios;
+	int ret, nr_banks;
 	struct pxa_gpio_platform_data *pdata;
 	struct device_node *prev, *next, *np = pdev->dev.of_node;
 	const struct of_device_id *of_id =
@@ -482,6 +452,11 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
 	pdata->ed_mask = of_property_read_bool(np, "marvell,gpio-ed-mask");
 	/* It's only valid for PXA26x */
 	pdata->inverted = of_property_read_bool(np, "marvell,gpio-inverted");
+	ret = of_property_read_u32(np, "marvell,nr-gpios", &pdata->nr_gpios);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "nr-gpios isn't specified\n");
+		return -ENOTSUPP;
+	}
 	/* set the platform data */
 	pdev->dev.platform_data = pdata;
 
@@ -498,15 +473,13 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
 		prev = next;
 	}
 	of_node_put(prev);
-	nr_gpios = nr_banks << 5;
-	pxa_last_gpio = nr_gpios - 1;
 
-	irq_base = irq_alloc_descs(-1, 0, nr_gpios, 0);
+	irq_base = irq_alloc_descs(-1, 0, pdata->nr_gpios, 0);
 	if (irq_base < 0) {
 		dev_err(&pdev->dev, "Failed to allocate IRQ numbers\n");
 		return -EINVAL;
 	}
-	domain = irq_domain_add_legacy(np, nr_gpios, irq_base, 0,
+	domain = irq_domain_add_legacy(np, pdata->nr_gpios, irq_base, 0,
 				       &pxa_irq_domain_ops, NULL);
 	pxa_gpio_of_node = np;
 	return 0;
@@ -521,12 +494,11 @@ static int pxa_gpio_probe(struct platform_device *pdev)
 	struct resource *res;
 	struct clk *clk;
 	struct pxa_gpio_platform_data *info;
-	int gpio, irq, ret, use_of = 0;
+	int gpio, irq, ret, use_of = 1;
 	int irq0 = 0, irq1 = 0, irq_mux, gpio_offset = 0;
 
 	ret = pxa_gpio_probe_dt(pdev);
 	if (ret < 0) {
-		pxa_last_gpio = pxa_gpio_nums();
 #ifdef CONFIG_ARCH_PXA
 		irq_base = PXA_GPIO_TO_IRQ(0);
 #elif defined(CONFIG_ARCH_MMP)
@@ -534,13 +506,9 @@ static int pxa_gpio_probe(struct platform_device *pdev)
 #else
 #error "gpio-pxa driver can't be used for your architecture"
 #endif
-	} else {
-		use_of = 1;
+		use_of = 0;
 	}
 
-	if (!pxa_last_gpio)
-		return -EINVAL;
-
 	irq0 = platform_get_irq_byname(pdev, "gpio0");
 	irq1 = platform_get_irq_byname(pdev, "gpio1");
 	irq_mux = platform_get_irq_byname(pdev, "gpio_mux");
@@ -573,6 +541,7 @@ static int pxa_gpio_probe(struct platform_device *pdev)
 
 	/* Initialize GPIO chips */
 	info = dev_get_platdata(&pdev->dev);
+	pxa_last_gpio = info->nr_gpios - 1;
 	pxa_init_gpio_chip(pdev, pxa_last_gpio);
 
 	/* clear all GPIO edge detects */
diff --git a/include/linux/gpio-pxa.h b/include/linux/gpio-pxa.h
index a5670c5..d2fa8e0 100644
--- a/include/linux/gpio-pxa.h
+++ b/include/linux/gpio-pxa.h
@@ -17,6 +17,7 @@ struct pxa_gpio_platform_data {
 	bool ed_mask;	/* true means that ed_mask reg is available */
 	bool inverted;	/* only valid for PXA26x */
 	bool gafr;	/* only valid for PXA25x/PXA26x/PXA27x */
+	unsigned int nr_gpios;
 	int (*gpio_set_wake)(unsigned int gpio, unsigned int on);
 };
 
-- 
1.7.10.4

[PATCH v5 07/12] gpio: pxa: add irq base in platform data

[Haojian Zhuang]

Macro PXA_GPIO_TO_IRQ() & MMP_GPIO_TO_IRQ() is used in machine driver
without DT. So move them into machine driver.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Tested-by: Igor Grinberg <grinberg@compulab.co.il>
---
 arch/arm/mach-mmp/aspenite.c      |    1 +
 arch/arm/mach-mmp/avengers_lite.c |    1 +
 arch/arm/mach-mmp/brownstone.c    |    1 +
 arch/arm/mach-mmp/flint.c         |    1 +
 arch/arm/mach-mmp/gplugd.c        |    1 +
 arch/arm/mach-mmp/tavorevb.c      |    1 +
 arch/arm/mach-mmp/teton_bga.c     |    1 +
 arch/arm/mach-mmp/ttc_dkb.c       |    1 +
 arch/arm/mach-pxa/pxa25x.c        |    1 +
 arch/arm/mach-pxa/pxa27x.c        |    1 +
 arch/arm/mach-pxa/pxa3xx.c        |    1 +
 drivers/gpio/gpio-pxa.c           |   22 +++++++++-------------
 include/linux/gpio-pxa.h          |    1 +
 13 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/arch/arm/mach-mmp/aspenite.c b/arch/arm/mach-mmp/aspenite.c
index a3e42dc..5785931 100644
--- a/arch/arm/mach-mmp/aspenite.c
+++ b/arch/arm/mach-mmp/aspenite.c
@@ -113,6 +113,7 @@ static unsigned long common_pin_config[] __initdata = {
 
 static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
 	.nr_gpios	= 128,
+	.irq_base	= MMP_GPIO_TO_IRQ(0),
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-mmp/avengers_lite.c b/arch/arm/mach-mmp/avengers_lite.c
index 1ea6502..074fbbe 100644
--- a/arch/arm/mach-mmp/avengers_lite.c
+++ b/arch/arm/mach-mmp/avengers_lite.c
@@ -35,6 +35,7 @@ static unsigned long avengers_lite_pin_config_V16F[] __initdata = {
 
 static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
 	.nr_gpios	= 128,
+	.irq_base	= MMP_GPIO_TO_IRQ(0),
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-mmp/brownstone.c b/arch/arm/mach-mmp/brownstone.c
index a32156f..3b4224c 100644
--- a/arch/arm/mach-mmp/brownstone.c
+++ b/arch/arm/mach-mmp/brownstone.c
@@ -107,6 +107,7 @@ static unsigned long brownstone_pin_config[] __initdata = {
 
 static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
 	.nr_gpios	= 192,
+	.irq_base	= MMP_GPIO_TO_IRQ(0),
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-mmp/flint.c b/arch/arm/mach-mmp/flint.c
index 3f301b5..00cdf62 100644
--- a/arch/arm/mach-mmp/flint.c
+++ b/arch/arm/mach-mmp/flint.c
@@ -80,6 +80,7 @@ static unsigned long flint_pin_config[] __initdata = {
 
 static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
 	.nr_gpios	= 192,
+	.irq_base	= MMP_GPIO_TO_IRQ(0),
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-mmp/gplugd.c b/arch/arm/mach-mmp/gplugd.c
index 019b178..78acca4 100644
--- a/arch/arm/mach-mmp/gplugd.c
+++ b/arch/arm/mach-mmp/gplugd.c
@@ -130,6 +130,7 @@ static unsigned long gplugd_pin_config[] __initdata = {
 
 static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
 	.nr_gpios	= 128,
+	.irq_base	= MMP_GPIO_TO_IRQ(0),
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-mmp/tavorevb.c b/arch/arm/mach-mmp/tavorevb.c
index 6e8cf80..86ed017 100644
--- a/arch/arm/mach-mmp/tavorevb.c
+++ b/arch/arm/mach-mmp/tavorevb.c
@@ -63,6 +63,7 @@ static unsigned long tavorevb_pin_config[] __initdata = {
 
 static struct pxa_gpio_platform_data ttc_dkb_gpio_pdata = {
 	.nr_gpios	= 128,
+	.irq_base	= MMP_GPIO_TO_IRQ(0),
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-mmp/teton_bga.c b/arch/arm/mach-mmp/teton_bga.c
index b5146bb..db65631 100644
--- a/arch/arm/mach-mmp/teton_bga.c
+++ b/arch/arm/mach-mmp/teton_bga.c
@@ -52,6 +52,7 @@ static unsigned long teton_bga_pin_config[] __initdata = {
 
 static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
 	.nr_gpios	= 128,
+	.irq_base	= MMP_GPIO_TO_IRQ(0),
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-mmp/ttc_dkb.c b/arch/arm/mach-mmp/ttc_dkb.c
index 387e3f8..0e0ea87 100644
--- a/arch/arm/mach-mmp/ttc_dkb.c
+++ b/arch/arm/mach-mmp/ttc_dkb.c
@@ -78,6 +78,7 @@ static unsigned long ttc_dkb_pin_config[] __initdata = {
 
 static struct pxa_gpio_platform_data ttc_dkb_gpio_pdata = {
 	.nr_gpios	= 128,
+	.irq_base	= MMP_GPIO_TO_IRQ(0),
 	.ed_mask	= true,
 };
 
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 52f94f3..2195e1a 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -346,6 +346,7 @@ static struct pxa_gpio_platform_data pxa25x_gpio_info __initdata = {
 #else
 	.nr_gpios = 85,
 #endif
+	.irq_base = PXA_GPIO_TO_IRQ(0),
 	.gafr = true,
 	.gpio_set_wake = gpio_set_wake,
 };
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 619b2f2..cb3f443 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -433,6 +433,7 @@ void __init pxa27x_set_i2c_power_info(struct i2c_pxa_platform_data *info)
 static struct pxa_gpio_platform_data pxa27x_gpio_info __initdata = {
 	.gafr = true,
 	.nr_gpios = 121,
+	.irq_base = PXA_GPIO_TO_IRQ(0),
 	.gpio_set_wake = gpio_set_wake,
 };
 
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index f6bff16..ef0634b 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -438,6 +438,7 @@ void __init pxa3xx_set_i2c_power_info(struct i2c_pxa_platform_data *info)
 
 static struct pxa_gpio_platform_data pxa3xx_gpio_info __initdata = {
 	.nr_gpios = 128,
+	.irq_base = PXA_GPIO_TO_IRQ(0),
 };
 
 static struct platform_device *devices[] __initdata = {
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 65839a7..141190c 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -457,8 +457,6 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
 		dev_err(&pdev->dev, "nr-gpios isn't specified\n");
 		return -ENOTSUPP;
 	}
-	/* set the platform data */
-	pdev->dev.platform_data = pdata;
 
 	next = of_get_next_child(np, NULL);
 	prev = next;
@@ -479,6 +477,9 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
 		dev_err(&pdev->dev, "Failed to allocate IRQ numbers\n");
 		return -EINVAL;
 	}
+	pdata->irq_base = irq_base;
+	/* set the platform data */
+	pdev->dev.platform_data = pdata;
 	domain = irq_domain_add_legacy(np, pdata->nr_gpios, irq_base, 0,
 				       &pxa_irq_domain_ops, NULL);
 	pxa_gpio_of_node = np;
@@ -498,16 +499,13 @@ static int pxa_gpio_probe(struct platform_device *pdev)
 	int irq0 = 0, irq1 = 0, irq_mux, gpio_offset = 0;
 
 	ret = pxa_gpio_probe_dt(pdev);
-	if (ret < 0) {
-#ifdef CONFIG_ARCH_PXA
-		irq_base = PXA_GPIO_TO_IRQ(0);
-#elif defined(CONFIG_ARCH_MMP)
-		irq_base = MMP_GPIO_TO_IRQ(0);
-#else
-#error "gpio-pxa driver can't be used for your architecture"
-#endif
+	if (ret < 0)
 		use_of = 0;
-	}
+	info = dev_get_platdata(&pdev->dev);
+	pxa_last_gpio = info->nr_gpios - 1;
+	irq_base = info->irq_base;
+	if (pxa_last_gpio <=0 || irq_base <= 0)
+		return -EINVAL;
 
 	irq0 = platform_get_irq_byname(pdev, "gpio0");
 	irq1 = platform_get_irq_byname(pdev, "gpio1");
@@ -540,8 +538,6 @@ static int pxa_gpio_probe(struct platform_device *pdev)
 	}
 
 	/* Initialize GPIO chips */
-	info = dev_get_platdata(&pdev->dev);
-	pxa_last_gpio = info->nr_gpios - 1;
 	pxa_init_gpio_chip(pdev, pxa_last_gpio);
 
 	/* clear all GPIO edge detects */
diff --git a/include/linux/gpio-pxa.h b/include/linux/gpio-pxa.h
index d2fa8e0..82c3e73 100644
--- a/include/linux/gpio-pxa.h
+++ b/include/linux/gpio-pxa.h
@@ -18,6 +18,7 @@ struct pxa_gpio_platform_data {
 	bool inverted;	/* only valid for PXA26x */
 	bool gafr;	/* only valid for PXA25x/PXA26x/PXA27x */
 	unsigned int nr_gpios;
+	unsigned int irq_base;
 	int (*gpio_set_wake)(unsigned int gpio, unsigned int on);
 };
 
-- 
1.7.10.4

[PATCH v5 08/12] document: devicetree: add properties in mrvl gpio

[Haojian Zhuang]

Append new properties for mrvl gpio. They're in below.
marvell,gpio-ed-mask marvell,gpio-inverted & marvell,nr_gpios.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 Documentation/devicetree/bindings/gpio/mrvl-gpio.txt |    9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt b/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt
index e137874..8cd5252 100644
--- a/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt
+++ b/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt
@@ -14,6 +14,13 @@ Required properties:
   interrupt source.
 - gpio-controller : Marks the device node as a gpio controller.
 - #gpio-cells : Should be one.  It is the pin number.
+- marvell,nr-gpios : Should be the number of total gpio pins.
+
+Optional properties:
+- marvell,gpio-ed-mask : It means that there's gpio edge mask register.
+  It only exists in mmp family SoC.
+- marvell,gpio-inverted : It means that some gpio pins are inverted.
+  It only exists in PXA26x SoC.
 
 Example:
 
@@ -26,6 +33,8 @@ Example:
 		#gpio-cells = <1>;
 		interrupt-controller;
 		#interrupt-cells = <1>;
+		marvell,gpio-ed-mask;
+		marvell,nr-gpios = <128>;
       };
 
 * Marvell Orion GPIO Controller
-- 
1.7.10.4

[PATCH v5 09/12] gpio: pxa: remove arch related macro

[Haojian Zhuang]

Remove macro CONFIG_ARCH_PXA.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Tested-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-pxa.c |   30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 141190c..f5f78ea 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -554,21 +554,21 @@ static int pxa_gpio_probe(struct platform_device *pdev)
 	}
 
 	if (!use_of) {
-#ifdef CONFIG_ARCH_PXA
-		irq = gpio_to_irq(0);
-		irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
-					 handle_edge_irq);
-		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
-		irq_set_chained_handler(IRQ_GPIO0, pxa_gpio_demux_handler);
-
-		irq = gpio_to_irq(1);
-		irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
-					 handle_edge_irq);
-		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
-		irq_set_chained_handler(IRQ_GPIO1, pxa_gpio_demux_handler);
-#endif
-
-		for (irq  = gpio_to_irq(gpio_offset);
+		if (irq0 > 0) {
+			irq = gpio_to_irq(0);
+			irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
+						 handle_edge_irq);
+			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+			irq_set_chained_handler(irq0, pxa_gpio_demux_handler);
+		}
+		if (irq1 > 0) {
+			irq = gpio_to_irq(1);
+			irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
+						 handle_edge_irq);
+			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+			irq_set_chained_handler(irq1, pxa_gpio_demux_handler);
+		}
+		for (irq = gpio_to_irq(gpio_offset);
 			irq <= gpio_to_irq(pxa_last_gpio); irq++) {
 			irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
 						 handle_edge_irq);
-- 
1.7.10.4

[PATCH v5 10/12] gpio: pxa: move gpio properties into child node

[Haojian Zhuang]

Move gpio properties into child node. So pinctrl driver could binds to
each gpio chip with gpio range.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Tested-by: Igor Grinberg <grinberg@compulab.co.il>
---
 drivers/gpio/gpio-pxa.c |   41 ++++++++++++++++++-----------------------
 1 file changed, 18 insertions(+), 23 deletions(-)

diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index f5f78ea..91f4881 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -65,7 +65,6 @@ static int irq_base;
 
 #ifdef CONFIG_OF
 static struct irq_domain *domain;
-static struct device_node *pxa_gpio_of_node;
 #endif
 
 struct pxa_gpio_chip {
@@ -233,8 +232,9 @@ static int pxa_gpio_of_xlate(struct gpio_chip *gc,
 static int pxa_init_gpio_chip(struct platform_device *pdev, int gpio_end)
 {
 	int i, gpio, nbanks = gpio_to_bank(gpio_end) + 1;
-	struct pxa_gpio_chip *chips;
 	struct pxa_gpio_platform_data *pdata = dev_get_platdata(&pdev->dev);
+	struct pxa_gpio_chip *chips;
+	struct device_node *next = NULL, *np = NULL;
 
 	chips = devm_kzalloc(&pdev->dev, nbanks * sizeof(*chips), GFP_KERNEL);
 	if (!chips) {
@@ -242,6 +242,11 @@ static int pxa_init_gpio_chip(struct platform_device *pdev, int gpio_end)
 		return -ENOMEM;
 	}
 
+	np = pdev->dev.of_node;
+#ifdef CONFIG_OF
+	if (np)
+		next = of_get_next_child(np, NULL);
+#endif
 	for (i = 0, gpio = 0; i < nbanks; i++, gpio += 32) {
 		struct gpio_chip *gc = &chips[i].gc;
 
@@ -258,16 +263,21 @@ static int pxa_init_gpio_chip(struct platform_device *pdev, int gpio_end)
 		gc->get = pxa_gpio_get;
 		gc->set = pxa_gpio_set;
 		gc->to_irq = pxa_gpio_to_irq;
-#ifdef CONFIG_OF_GPIO
-		gc->of_node = pxa_gpio_of_node;
-		gc->of_xlate = pxa_gpio_of_xlate;
-		gc->of_gpio_n_cells = 2;
+#ifdef CONFIG_OF
+		if (np) {
+			gc->of_node = next;
+			next = of_get_next_child(np, next);
+
+			gc->of_xlate = pxa_gpio_of_xlate;
+			gc->of_gpio_n_cells = 2;
+		}
 #endif
 
 		/* number of GPIOs on last bank may be less than 32 */
 		gc->ngpio = (gpio + 31 > gpio_end) ? (gpio_end - gpio + 1) : 32;
 		gpiochip_add(gc);
 	}
+	of_node_put(next);
 	pxa_gpio_chips = chips;
 	return 0;
 }
@@ -436,9 +446,9 @@ const struct irq_domain_ops pxa_irq_domain_ops = {
 
 static int pxa_gpio_probe_dt(struct platform_device *pdev)
 {
-	int ret, nr_banks;
+	int ret;
 	struct pxa_gpio_platform_data *pdata;
-	struct device_node *prev, *next, *np = pdev->dev.of_node;
+	struct device_node *np = pdev->dev.of_node;
 	const struct of_device_id *of_id =
 				of_match_device(pxa_gpio_dt_ids, &pdev->dev);
 
@@ -458,20 +468,6 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
 		return -ENOTSUPP;
 	}
 
-	next = of_get_next_child(np, NULL);
-	prev = next;
-	if (!next) {
-		dev_err(&pdev->dev, "Failed to find child gpio node\n");
-		return -EINVAL;
-	}
-	for (nr_banks = 1; ; nr_banks++) {
-		next = of_get_next_child(np, prev);
-		if (!next)
-			break;
-		prev = next;
-	}
-	of_node_put(prev);
-
 	irq_base = irq_alloc_descs(-1, 0, pdata->nr_gpios, 0);
 	if (irq_base < 0) {
 		dev_err(&pdev->dev, "Failed to allocate IRQ numbers\n");
@@ -482,7 +478,6 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
 	pdev->dev.platform_data = pdata;
 	domain = irq_domain_add_legacy(np, pdata->nr_gpios, irq_base, 0,
 				       &pxa_irq_domain_ops, NULL);
-	pxa_gpio_of_node = np;
 	return 0;
 }
 #else
-- 
1.7.10.4

[PATCH v5 11/12] gpio: pxa: bind to pinctrl by request

[Haojian Zhuang]

While gpio pins is requested, request the pin of pinctrl driver first.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Tested-by: Igor Grinberg <grinberg@compulab.co.il>
---
 drivers/gpio/gpio-pxa.c |   19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 91f4881..f2f7737 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -22,6 +22,7 @@
 #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/syscore_ops.h>
 #include <linux/slab.h>
@@ -154,6 +155,23 @@ int pxa_irq_to_gpio(int irq)
 	return irq - irq_base;
 }
 
+static int pxa_gpio_request(struct gpio_chip *gc, unsigned offset)
+{
+	/*
+	 * Map back to global GPIO space and request muxing, the direction
+	 * parameter does not matter for this controller.
+	 */
+	int gpio = gc->base + offset;
+
+	/*
+	 * Platforms in ARCH_PXA doesn't move to device tree yet,
+	 * and PINCTRL_SINGLE is depend on device tree.
+	 */ 
+	if (IS_ENABLED(CONFIG_PINCTRL_SINGLE))
+		return pinctrl_request_gpio(gpio);
+	return 0;
+}
+
 static int pxa_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
 {
 	void __iomem *base = gpio_chip_base(gc);
@@ -258,6 +276,7 @@ static int pxa_init_gpio_chip(struct platform_device *pdev, int gpio_end)
 		gc->base  = gpio;
 		gc->label = chips[i].label;
 
+		gc->request = pxa_gpio_request;
 		gc->direction_input  = pxa_gpio_direction_input;
 		gc->direction_output = pxa_gpio_direction_output;
 		gc->get = pxa_gpio_get;
-- 
1.7.10.4

[PATCH v5 12/12] ARM: dts: support pinmux in pxa910

[Haojian Zhuang]

Add gpio range, pinmux settings in pxa910 dkb DTS file.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 arch/arm/boot/dts/pxa910-dkb.dts |  248 ++++++++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/pxa910.dtsi    |   29 ++++-
 2 files changed, 275 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/pxa910-dkb.dts b/arch/arm/boot/dts/pxa910-dkb.dts
index 595492a..04db0b6 100644
--- a/arch/arm/boot/dts/pxa910-dkb.dts
+++ b/arch/arm/boot/dts/pxa910-dkb.dts
@@ -170,6 +170,254 @@
 			rtc: rtc at d4010000 {
 				status = "okay";
 			};
+			gpio-keys {
+				compatible = "gpio-keys";
+
+				/* in6, out3, out4 */
+				right {
+					label = "right";
+					gpios = <&gcb0 12 0>;
+					linux,code = <106>;	/* KEY_RIGHT */
+				};
+				num5 {
+					label = "5";
+					gpios = <&gcb0 4 0>;
+					linux,code = <6>;	/* KEY_5 */
+				};
+			};
+			gpio at d4019000 {
+				status = "okay";
+
+				/*
+				 * In theorical, some gpios could be routed to
+				 * multiple pins. So define the gpio-ranges in
+				 * board file, not silicon file.
+				 */
+				gcb0: gpio at d4019000 {
+					/* <gpio_offset, pin_offset, nr_pins> */
+					gpio-ranges = <&pmx 0 55 32>;
+				};
+				gcb1: gpio at d4019004 {
+					/* <gpio_offset, pin_offset, nr_pins> */
+					gpio-ranges = <&pmx 0 87 23 &pmx 23 188 9>;
+				};
+				gcb2: gpio at d4019008 {
+					/* <gpio_offset, pin_offset, nr_pins> */
+					gpio-ranges = <&pmx 0 197 3 &pmx 3 110 29>;
+				};
+				gcb3: gpio at d4019100 {
+					/* <gpio_offset, pin_offset, nr_pins> */
+					gpio-ranges = < &pmx 0 139 14 &pmx 14 166 7
+							&pmx 21 45 4 &pmx 25 203 1
+							&pmx 26 50 4 &pmx 30 27 2>;
+				};
+			};
+			pmx: pinmux at d401e000 {
+				/* pin base, nr pins & gpio function */
+				pinctrl-single,gpio-range = <
+					/*
+					 * GPIO number is hardcoded for range@here.
+					 * In gpio chip, GPIO number is not hardcoded for range.
+					 * Since one gpio pin may be routed to multiple pins,
+					 * define these gpio range in pxa910-dkb.dts not pxa910.dtsi.
+					 */
+						&range 55 55 0	/* GPIO0 ~ GPIO54 */
+						&range 188 5 1	/* GPIO55 ~ GPIO59 */ 
+						&range 193 7 0	/* GPIO60 ~ GPIO66 */
+						&range 110 43 0	/* GPIO67 ~ GPIO109 */
+						&range 166 7 0	/* GPIO110 ~ GPIO116 */
+						&range 45 4 0	/* GPIO117 ~ GPIO120 */
+						&range 50 2 1	/* GPIO122 ~ GPIO123 */
+						&range 203 1 0	/* GPIO121 */
+						&range 52 1 0	/* GPIO124 */
+						&range 53 1 1	/* GPIO125 */
+						&range 27 2 0	/* GPIO126 ~ GPIO127 */
+					>;
+
+				pinctrl-names = "default";
+				pinctrl-0 = <&keypad_pmx_func>;
+
+				uart1_pmx_func: pinmux_uart1_pins at 0 {
+					pinctrl-single,pins = <
+						0x198 0x6	/* GPIO47_UART1_RXD */
+						0x19c 0x6	/* GPIO48_UART1_TXD */
+					>;
+					pinctrl-single,slew-rate = <0x1000 0x1800>;
+					pinctrl-single,bias-pullup = <0xc000 0xc000 0 0xc000>;
+					pinctrl-single,bias-pulldown = <0 0xa000 0 0xa000>;
+					pinctrl-single,input-schmitt = <0 0x30>;
+					pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+				};
+				uart2_pmx_func: pinmux_uart2_pins at 0 {
+					pinctrl-single,pins = <
+						0x150 0x4	/* GPIO29_UART2_CTS */
+						0x154 0x4	/* GPIO30_UART2_RTS */
+						0x158 0x4	/* GPIO31_UART2_TXD */
+						0x15c 0x4	/* GPIO32_UART2_RXD */
+					>;
+					pinctrl-single,slew-rate = <0x1000 0x1800>;
+					pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+					pinctrl-single,bias-pulldown = <0 0xa000 0 0xa000>;
+					pinctrl-single,input-schmitt = <0 0x30>;
+					pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+				};
+				uart3_pmx_func: pinmux_uart3_pins at 0 {
+					pinctrl-single,pins = <
+						0x188 0x7	/* GPIO43_UART3_RXD */
+						0x18c 0x7	/* GPIO44_UART3_TXD */
+					>;
+					pinctrl-single,slew-rate = <0x1000 0x1800>;
+					pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+					pinctrl-single,bias-pulldown = <0 0xa000 0 0xa000>;
+					pinctrl-single,input-schmitt = <0 0x30>;
+					pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+				};
+				twsi1_pmx_func: pinmux_twsi1_pins at 0 {
+					pinctrl-single,pins = <
+						0x1b0 0x2	/* GPIO53_TWSI_SCL */
+						0x1b4 0x2	/* GPIO54_TWSI_SDA */
+					>;
+					pinctrl-single,slew-rate = <0x1000 0x1800>;
+					pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+					pinctrl-single,bias-pulldown = <0 0xa000 0 0xa000>;
+					pinctrl-single,input-schmitt = <0 0x30>;
+					pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+				};
+				nand_pmx_func: pinmux_nand_pins at 0 {
+					pinctrl-single,pins = <
+						0x040 0x0	/* ND_IO0 */
+						0x03c 0x0	/* ND_IO1 */
+						0x038 0x0	/* ND_IO2 */
+						0x034 0x0	/* ND_IO3 */
+						0x030 0x0	/* ND_IO4 */
+						0x02c 0x0	/* ND_IO5 */
+						0x028 0x0	/* ND_IO6 */
+						0x024 0x0	/* ND_IO7 */
+						0x020 0x0	/* ND_IO8 */
+						0x01c 0x0	/* ND_IO9 */
+						0x018 0x0	/* ND_IO10 */
+						0x014 0x0	/* ND_IO11 */
+						0x010 0x0	/* ND_IO12 */
+						0x00c 0x0	/* ND_IO13 */
+						0x008 0x0	/* ND_IO14 */
+						0x004 0x0	/* ND_IO15 */
+						0x044 0x0	/* ND_nCS0 */
+						0x060 0x1	/* ND_ALE */
+						0x05c 0x0	/* ND_CLE */
+						0x054 0x1	/* ND_nWE */
+						0x058 0x1	/* ND_nRE */
+						0x068 0x0	/* ND_RDY0 */
+					>;
+					pinctrl-single,slew-rate = <0x1000 0x1800>;
+					pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+					pinctrl-single,bias-pulldown = <0 0xa000 0 0xa000>;
+					pinctrl-single,input-schmitt = <0 0x30>;
+					pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+				};
+				mmc1_pmx_func1: pinmux_mmc1_pins at 0 {
+					pinctrl-single,pins = <
+						0x0a0 0x0	/* MMC1_DATA0 */
+						0x09c 0x0	/* MMC1_DATA1 */
+						0x098 0x0	/* MMC1_DATA2 */
+						0x094 0x0	/* MMC1_DATA3 */
+						0x090 0x0	/* MMC1_DATA4 */
+						0x08c 0x0	/* MMC1_DATA5 */
+						0x088 0x0	/* MMC1_DATA6 */
+						0x084 0x0	/* MMC1_DATA7 */
+						0x0a4 0x0	/* MMC1_CMD */
+						0x0a8 0x0	/* MMC1_CLK */
+					>;
+					pinctrl-single,slew-rate = <0x1800 0x1800>;
+					pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+					pinctrl-single,bias-pulldown = <0 0xa000 0 0xa000>;
+					pinctrl-single,input-schmitt = <0 0x30>;
+					pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+				};
+				mmc1_pmx_func2: pinmux_mmc1_pins at 1 {
+					pinctrl-single,pins = <
+						0x0ac 0x0	/* MMC1_CD */
+						0x0b0 0x0	/* MMC1_WP */
+					>;
+					pinctrl-single,slew-rate = <0x1000 0x1800>;
+					pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+					pinctrl-single,bias-pulldown = <0 0xa000 0 0xa000>;
+					pinctrl-single,input-schmitt = <0 0x30>;
+					pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+				};
+				mmc2_pmx_func: pinmux_mmc2_pins at 0 {
+					pinctrl-single,pins = <
+						0x180 0x1	/* MMC2_CMD */
+						0x184 0x1	/* MMC2_CLK */
+						0x17c 0x1	/* MMC2_DATA0 */
+						0x178 0x1	/* MMC2_DATA1 */
+						0x174 0x1	/* MMC2_DATA2 */
+						0x170 0x1	/* MMC2_DATA3 */
+					>;
+					pinctrl-single,slew-rate = <0x1000 0x1800>;
+					pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+					pinctrl-single,bias-pulldown = <0 0xa000 0 0xa000>;
+					pinctrl-single,input-schmitt = <0 0x30>;
+					pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+				};
+				ssp1_pmx_func: pinmux_ssp1_pins at 0 {
+					pinctrl-single,pins = <
+						0x130 0x1	/* GPIO21_SSP1_SCLK */
+						0x134 0x1	/* GPIO22_SSP1_FRM */
+						0x138 0x1	/* GPIO23_SSP1_TXD */
+						0x13c 0x1	/* GPIO24_SSP1_RXD */
+					>;
+					pinctrl-single,slew-rate = <0x1000 0x1800>;
+					pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+					pinctrl-single,bias-pulldown = <0 0xa000 0 0xa000>;
+					pinctrl-single,input-schmitt = <0 0x30>;
+					pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+				};
+				keypad_pmx_func: pinmux_keypad_pins at 0 {
+					pinctrl-single,pins = <
+						0x0dc 0x1	/* GPIO0_MKIN0 */
+						0x0e0 0x1	/* GPIO1_MKOUT0 */
+						0x0e4 0x1	/* GPIO2_MKIN1 */
+						0x0e8 0x1	/* GPIO3_MKOUT1 */
+						0x0ec 0x1	/* GPIO4_MKIN2 */
+						0x0f0 0x1	/* GPIO5_MKOUT2 */
+						0x0f4 0x1	/* GPIO6_MKIN3 */
+						0x0f8 0x1	/* GPIO7_MKOUT3 */
+						0x0fc 0x1	/* GPIO8_MKIN4 */
+						0x100 0x1	/* GPIO9_MKOUT4 */
+						0x10c 0x1	/* GPIO12_MKIN6 */
+					>;
+					pinctrl-single,slew-rate = <0x1000 0x1800>;
+					pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+					pinctrl-single,bias-pulldown = <0xa000 0xa000 0 0xa000>;
+					pinctrl-single,input-schmitt = <0 0x30>;
+					pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+				};
+				nfc_pmx_func: pinmux_nfc_pins at 0 {
+					pinctrl-single,pins = <
+						0x120 0x0	/* GPIO17 */
+					>;
+					pinctrl-single,slew-rate = <0x1000 0x1800>;
+					pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+					pinctrl-single,bias-pulldown = <0x0 0xa000 0 0xa000>;
+					pinctrl-single,input-schmitt = <0 0x30>;
+					pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+				};
+				wlan_pmx_func: pinmux_wlan_pins at 0 {
+					pinctrl-single,pins = <
+						0x114 0x0	/* GPIO14 */
+						0x12c 0x0	/* GPIO20 */
+						0x160 0x0	/* GPIO33 */
+						0x164 0x0	/* GPIO34 */
+						0x168 0x0	/* GPIO35 */
+						0x16c 0x0	/* GPIO36 */
+					>;
+					pinctrl-single,slew-rate = <0x1000 0x1800>;
+					pinctrl-single,bias-pullup = <0 0xc000 0 0xc000>;
+					pinctrl-single,bias-pulldown = <0 0xa000 0 0xa000>;
+					pinctrl-single,input-schmitt = <0 0x30>;
+					pinctrl-single,input-schmitt-enable = <0x40 0 0x40 0x40>;
+				};
+			};
 		};
 	};
 };
diff --git a/arch/arm/boot/dts/pxa910.dtsi b/arch/arm/boot/dts/pxa910.dtsi
index 825aaca..20a3418 100644
--- a/arch/arm/boot/dts/pxa910.dtsi
+++ b/arch/arm/boot/dts/pxa910.dtsi
@@ -93,28 +93,37 @@
 				#address-cells = <1>;
 				#size-cells = <1>;
 				reg = <0xd4019000 0x1000>;
-				gpio-controller;
-				#gpio-cells = <2>;
+				marvell,gpio-ed-mask = <1>;
+				marvell,nr-gpios = <128>;
 				interrupts = <49>;
 				interrupt-names = "gpio_mux";
 				interrupt-controller;
 				#interrupt-cells = <1>;
+				status = "disabled";
 				ranges;
 
 				gcb0: gpio at d4019000 {
 					reg = <0xd4019000 0x4>;
+					gpio-controller;
+					#gpio-cells = <2>;
 				};
 
 				gcb1: gpio at d4019004 {
 					reg = <0xd4019004 0x4>;
+					gpio-controller;
+					#gpio-cells = <2>;
 				};
 
 				gcb2: gpio at d4019008 {
 					reg = <0xd4019008 0x4>;
+					gpio-controller;
+					#gpio-cells = <2>;
 				};
 
 				gcb3: gpio at d4019100 {
 					reg = <0xd4019100 0x4>;
+					gpio-controller;
+					#gpio-cells = <2>;
 				};
 			};
 
@@ -144,6 +153,22 @@
 				interrupt-names = "rtc 1Hz", "rtc alarm";
 				status = "disabled";
 			};
+
+			pmx: pinmux at d401e000 {
+				compatible = "pinconf-single";
+				reg = <0xd401e000 0x330>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				#gpio-range-cells = <3>;
+				ranges;
+
+				pinctrl-single,register-width = <32>;
+				pinctrl-single,function-mask = <7>;
+
+				range: gpio-range {
+					#pinctrl-single,gpio-range-cells = <3>;
+				};
+			};
 		};
 	};
 };
-- 
1.7.10.4

[PATCH v5 00/12] enhance DT support on gpio pxa

[Linus Walleij]

On Mon, Feb 25, 2013 at 4:49 AM, Haojian Zhuang
<haojian.zhuang@linaro.org> wrote:

> Changelog:
>
> v5:
> * Replace of_find_property() by of_property_read_bool().
> * Rename __gpio_is_occupied() & __gpio_is_inverted().
> * Avoid to use pxachip as variable name. Use chip instead.

Bah I've been talking crap in my other comments. This series
looks great. Acked-by: Linus Walleij <linus.walleij@linaro.org>
for the entire series (but I have a comment on patch 12/12,
even though I Ack it).

Will you take this through the PXA tree?

Yours,
Linus Walleij

[PATCH v5 12/12] ARM: dts: support pinmux in pxa910

[Linus Walleij]

On Mon, Feb 25, 2013 at 4:49 AM, Haojian Zhuang
<haojian.zhuang@linaro.org> wrote:

> Add gpio range, pinmux settings in pxa910 dkb DTS file.
>
> Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>

Overall the file is looking real nice.

> +                                               &range 55 55 0  /* GPIO0 ~ GPIO54 */
> +                                               &range 188 5 1  /* GPIO55 ~ GPIO59 */
(...)
> +                                               0x198 0x6       /* GPIO47_UART1_RXD */
> +                                               0x19c 0x6       /* GPIO48_UART1_TXD */

The Freescale people just started using the new C preprocessor
for defining real constants for this type of stuff.

In this case it's be way more helpful to use

#define GPIO47_UART1_RXD 0x198

and use that.

(Though I'm not sure why hex numbers are helpful on such physical
things as pins, but your choice.)

Yours,
Linus Walleij

[PATCH v5 01/12] gpio: pxa: identify ed mask reg with platform data

[Grant Likely]

On Mon, 25 Feb 2013 11:49:30 +0800, Haojian Zhuang <haojian.zhuang@linaro.org> wrote:
> Avoid to judge whether edge mask register exists by CPU. Use platform
> data to identify it instead. The gpio edge mask register exists in MMP
> series SoC.
> 
> Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>

Hi Haojian,

I don't think patches like this are a good idea. The driver already
knows the difference between different types of chips. Adding /more/
platform data is making life worse, not better. The diffstat is evidence
of that:

>  10 files changed, 65 insertions(+), 1 deletion(-)

If you're looking to get rid of the pxa_gpio_nums() function, then a
much better way to do it is to use a platform_device_id table and
differentiate the type by the name. You can attach data to that table
with the parameters for each chip. For example:

struct pxa_gpio_id_data pxa_gpio_id_data[] = {
	{ .count = 84, type = PXA25X_GPIO, },
	{ .count = 89, type = PXA26X_GPIO, },
	{ .count = 127, type = MMP_GPIO, },
};

static const struct platform_device_id pxa_gpio_id_table[] = {
	{ "pxa25x-gpio", (unsigned long) &pxa_gpio_id_data[0], },
	{ "pxa65x-gpio", (unsigned long) &pxa_gpio_id_data[1], },
	{ "mmp-gpio", (unsigned long) &pxa_gpio_id_data[2], },
};

static struct platform_driver pxa_gpio_driver = {
	.probe = pxa_gpio_probe,
	.driver = {
		.name = "pxa-gpio",
		.of_match_table = of_match_ptr(pxa_gpio_dt_ids),
	},
	.id_table = pxa_gpio_id_table,
};

And that same data table can be used in the of_match_table too.

g.

[PATCH v5 01/12] gpio: pxa: identify ed mask reg with platform data

[Haojian Zhuang]

On Sat, Mar 2, 2013 at 5:52 PM, Grant Likely <grant.likely@secretlab.ca> wrote:
> On Mon, 25 Feb 2013 11:49:30 +0800, Haojian Zhuang <haojian.zhuang@linaro.org> wrote:
>> Avoid to judge whether edge mask register exists by CPU. Use platform
>> data to identify it instead. The gpio edge mask register exists in MMP
>> series SoC.
>>
>> Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
>
> Hi Haojian,
>
> I don't think patches like this are a good idea. The driver already
> knows the difference between different types of chips. Adding /more/
> platform data is making life worse, not better. The diffstat is evidence
> of that:
>
>>  10 files changed, 65 insertions(+), 1 deletion(-)
>
> If you're looking to get rid of the pxa_gpio_nums() function, then a
> much better way to do it is to use a platform_device_id table and
> differentiate the type by the name. You can attach data to that table
> with the parameters for each chip. For example:
>
> struct pxa_gpio_id_data pxa_gpio_id_data[] = {
>         { .count = 84, type = PXA25X_GPIO, },
>         { .count = 89, type = PXA26X_GPIO, },
>         { .count = 127, type = MMP_GPIO, },
> };
>
> static const struct platform_device_id pxa_gpio_id_table[] = {
>         { "pxa25x-gpio", (unsigned long) &pxa_gpio_id_data[0], },
>         { "pxa65x-gpio", (unsigned long) &pxa_gpio_id_data[1], },
>         { "mmp-gpio", (unsigned long) &pxa_gpio_id_data[2], },
> };
>
> static struct platform_driver pxa_gpio_driver = {
>         .probe = pxa_gpio_probe,
>         .driver = {
>                 .name = "pxa-gpio",
>                 .of_match_table = of_match_ptr(pxa_gpio_dt_ids),
>         },
>         .id_table = pxa_gpio_id_table,
> };
>
> And that same data table can be used in the of_match_table too.
>
> g.
>

OK. I'll update it.

Thanks
Haojian

[PATCH v5 00/12] enhance DT support on gpio pxa

[Haojian Zhuang]

On 1 March 2013 08:49, Linus Walleij <linus.walleij@linaro.org> wrote:
> On Mon, Feb 25, 2013 at 4:49 AM, Haojian Zhuang
> <haojian.zhuang@linaro.org> wrote:
>
>> Changelog:
>>
>> v5:
>> * Replace of_find_property() by of_property_read_bool().
>> * Rename __gpio_is_occupied() & __gpio_is_inverted().
>> * Avoid to use pxachip as variable name. Use chip instead.
>
> Bah I've been talking crap in my other comments. This series
> looks great. Acked-by: Linus Walleij <linus.walleij@linaro.org>
> for the entire series (but I have a comment on patch 12/12,
> even though I Ack it).
>
> Will you take this through the PXA tree?
>
> Yours,
> Linus Walleij

Since Grant has some comments on the platform data usage,
I'll give out the v6 later.

By the way, I'll take it through the PXA tree.

Regards
Haojian