[PATCH 1/2] gpio: Remove const from gpiospec in of_xlate

[Pantelis Antoniou <pantelis.antoniou@xxxxxxxxxxxx>]

Cascaded GPIO chips modify gpiospec to pass along
the next gpio chip to match against. Remove the const
specifier to make it possible.
Change all in kernel users also.

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@xxxxxxxxxxxx>
---
 drivers/gpio/gpio-brcmstb.c | 2 +-
 drivers/gpio/gpio-davinci.c | 2 +-
 drivers/gpio/gpio-etraxfs.c | 2 +-
 drivers/gpio/gpio-lpc32xx.c | 2 +-
 drivers/gpio/gpio-pxa.c     | 2 +-
 drivers/gpio/gpiolib-of.c   | 2 +-
 include/linux/gpio/driver.h | 2 +-
 include/linux/of_gpio.h     | 2 +-
 8 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/gpio/gpio-brcmstb.c b/drivers/gpio/gpio-brcmstb.c
index e648914..29a71d6 100644
--- a/drivers/gpio/gpio-brcmstb.c
+++ b/drivers/gpio/gpio-brcmstb.c
@@ -302,7 +302,7 @@ static int brcmstb_gpio_remove(struct platform_device *pdev)
 }
 
 static int brcmstb_gpio_of_xlate(struct gpio_chip *gc,
-		const struct of_phandle_args *gpiospec, u32 *flags)
+		struct of_phandle_args *gpiospec, u32 *flags)
 {
 	struct brcmstb_gpio_priv *priv = brcmstb_gpio_gc_to_priv(gc);
 	struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index dd262f0..87add80 100644
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -173,7 +173,7 @@ of_err:
 
 #ifdef CONFIG_OF_GPIO
 static int davinci_gpio_of_xlate(struct gpio_chip *gc,
-			     const struct of_phandle_args *gpiospec,
+			     struct of_phandle_args *gpiospec,
 			     u32 *flags)
 {
 	struct davinci_gpio_controller *chips = dev_get_drvdata(gc->parent);
diff --git a/drivers/gpio/gpio-etraxfs.c b/drivers/gpio/gpio-etraxfs.c
index 00b022c..660bffb 100644
--- a/drivers/gpio/gpio-etraxfs.c
+++ b/drivers/gpio/gpio-etraxfs.c
@@ -180,7 +180,7 @@ static unsigned int etraxfs_gpio_chip_to_port(struct gpio_chip *gc)
 }
 
 static int etraxfs_gpio_of_xlate(struct gpio_chip *gc,
-			       const struct of_phandle_args *gpiospec,
+			       struct of_phandle_args *gpiospec,
 			       u32 *flags)
 {
 	/*
diff --git a/drivers/gpio/gpio-lpc32xx.c b/drivers/gpio/gpio-lpc32xx.c
index fc5f197..3be9169 100644
--- a/drivers/gpio/gpio-lpc32xx.c
+++ b/drivers/gpio/gpio-lpc32xx.c
@@ -478,7 +478,7 @@ static struct lpc32xx_gpio_chip lpc32xx_gpiochip[] = {
 };
 
 static int lpc32xx_of_xlate(struct gpio_chip *gc,
-			    const struct of_phandle_args *gpiospec, u32 *flags)
+			    struct of_phandle_args *gpiospec, u32 *flags)
 {
 	/* Is this the correct bank? */
 	u32 bank = gpiospec->args[0];
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 76ac906..47e35ab 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -317,7 +317,7 @@ static void pxa_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 
 #ifdef CONFIG_OF_GPIO
 static int pxa_gpio_of_xlate(struct gpio_chip *gc,
-			     const struct of_phandle_args *gpiospec,
+			     struct of_phandle_args *gpiospec,
 			     u32 *flags)
 {
 	if (gpiospec->args[0] > pxa_last_gpio)
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index d22dcc3..50cb787 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -285,7 +285,7 @@ static int of_gpiochip_scan_gpios(struct gpio_chip *chip)
  * is less than ngpios (that is specified in the gpio_chip).
  */
 int of_gpio_simple_xlate(struct gpio_chip *gc,
-			 const struct of_phandle_args *gpiospec, u32 *flags)
+			 struct of_phandle_args *gpiospec, u32 *flags)
 {
 	/*
 	 * We're discouraging gpio_cells < 2, since that way you'll have to
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 50882e0..793297c 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -201,7 +201,7 @@ struct gpio_chip {
 	struct device_node *of_node;
 	int of_gpio_n_cells;
 	int (*of_xlate)(struct gpio_chip *gc,
-			const struct of_phandle_args *gpiospec, u32 *flags);
+			struct of_phandle_args *gpiospec, u32 *flags);
 #endif
 };
 
diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h
index 092186c..bdeb4b1 100644
--- a/include/linux/of_gpio.h
+++ b/include/linux/of_gpio.h
@@ -64,7 +64,7 @@ extern void of_mm_gpiochip_remove(struct of_mm_gpio_chip *mm_gc);
 extern int of_gpiochip_add(struct gpio_chip *gc);
 extern void of_gpiochip_remove(struct gpio_chip *gc);
 extern int of_gpio_simple_xlate(struct gpio_chip *gc,
-				const struct of_phandle_args *gpiospec,
+				struct of_phandle_args *gpiospec,
 				u32 *flags);
 
 #else /* CONFIG_OF_GPIO */
-- 
1.7.12

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