diff options
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.patch | 81 |
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 + |