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Diffstat (limited to 'target/linux/lantiq/patches-3.9/0022-PINCTRL-add-gpio_irq-support.patch')
-rw-r--r--target/linux/lantiq/patches-3.9/0022-PINCTRL-add-gpio_irq-support.patch81
1 files changed, 81 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.9/0022-PINCTRL-add-gpio_irq-support.patch b/target/linux/lantiq/patches-3.9/0022-PINCTRL-add-gpio_irq-support.patch
new file mode 100644
index 0000000000..223f78c3a3
--- /dev/null
+++ b/target/linux/lantiq/patches-3.9/0022-PINCTRL-add-gpio_irq-support.patch
@@ -0,0 +1,81 @@
+From ea78e25b769740a801e259f4f6cb93fa92faa244 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Sat, 29 Jun 2013 19:32:08 +0200
+Subject: [PATCH 22/22] PINCTRL: add gpio_irq support
+
+---
+ drivers/pinctrl/pinctrl-xway.c | 28 ++++++++++++++++++++++++++--
+ 1 file changed, 26 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/pinctrl/pinctrl-xway.c b/drivers/pinctrl/pinctrl-xway.c
+index 068224e..8719d35 100644
+--- a/drivers/pinctrl/pinctrl-xway.c
++++ b/drivers/pinctrl/pinctrl-xway.c
+@@ -564,10 +564,9 @@ static struct pinctrl_desc xway_pctrl_desc = {
+ .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);
+
+@@ -587,6 +586,14 @@ static inline int xway_mux_apply(struct pinctrl_dev *pctrldev,
+ 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},
+@@ -631,6 +638,10 @@ static int xway_gpio_dir_out(struct gpio_chip *chip, unsigned int pin, int val)
+ {
+ 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);
+
+@@ -651,6 +662,18 @@ static void xway_gpio_free(struct gpio_chip *chip, unsigned offset)
+ 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,
+@@ -659,6 +682,7 @@ 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,
+ };
+
+--
+1.7.10.4
+