add missing pinmux patch

Fix lantiq pinmux which affected PCI and USB.

Known affected boards are: ARV4518 and ARV7518.

Signed-off-by: Álvaro Fernández Rojas <[email protected]>

SVN-Revision: 36312

target/linux/lantiq/patches-3.8/0042-PINCTRL-lantiq-fix-pinmux.patch

@@ -0,0 +1,67 @@
+--- a/drivers/pinctrl/pinctrl-xway.c	2013-04-10 21:51:51.739780800 +0200
++++ b/drivers/pinctrl/pinctrl-xway.c	2013-04-10 21:56:47.990049456 +0200
+@@ -563,10 +563,9 @@ static struct pinctrl_desc xway_pctrl_de
+ 	.confops	= &xway_pinconf_ops,
+ };
+ 
+-static inline int xway_mux_apply(struct pinctrl_dev *pctrldev,
++static int mux_apply(struct ltq_pinmux_info *info,
+ 				int pin, int mux)
+ {
+-	struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
+ 	int port = PORT(pin);
+ 	u32 alt1_reg = GPIO_ALT1(pin);
+ 
+@@ -586,6 +585,14 @@ static inline int xway_mux_apply(struct
+ 	return 0;
+ }
+ 
++static inline int xway_mux_apply(struct pinctrl_dev *pctrldev,
++				int pin, int mux)
++{
++	struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
++
++	return mux_apply(info, pin, mux);
++}
++
+ static const struct ltq_cfg_param xway_cfg_params[] = {
+ 	{"lantiq,pull",		LTQ_PINCONF_PARAM_PULL},
+ 	{"lantiq,open-drain",	LTQ_PINCONF_PARAM_OPEN_DRAIN},
+@@ -630,6 +637,10 @@ static int xway_gpio_dir_out(struct gpio
+ {
+ 	struct ltq_pinmux_info *info = dev_get_drvdata(chip->dev);
+ 
++	if (PORT(pin) == PORT3)
++		gpio_setbit(info->membase[0], GPIO3_OD, PORT_PIN(pin));
++	else
++		gpio_setbit(info->membase[0], GPIO_OD(pin), PORT_PIN(pin));
+ 	gpio_setbit(info->membase[0], GPIO_DIR(pin), PORT_PIN(pin));
+ 	xway_gpio_set(chip, pin, val);
+ 
+@@ -650,6 +661,18 @@ static void xway_gpio_free(struct gpio_c
+ 	pinctrl_free_gpio(gpio);
+ }
+ 
++static int xway_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
++{
++	struct ltq_pinmux_info *info = dev_get_drvdata(chip->dev);
++	int i;
++
++	for (i = 0; i < info->num_exin; i++)
++		if (info->exin[i] == offset)
++			return ltq_eiu_get_irq(i);
++
++	return -1;
++}
++
+ static struct gpio_chip xway_chip = {
+ 	.label = "gpio-xway",
+ 	.direction_input = xway_gpio_dir_in,
+@@ -658,6 +681,7 @@ static struct gpio_chip xway_chip = {
+ 	.set = xway_gpio_set,
+ 	.request = xway_gpio_req,
+ 	.free = xway_gpio_free,
++	.to_irq = xway_gpio_to_irq,
+ 	.base = -1,
+ };
+