From: John Crispin <blo...@openwrt.org>
This patch is included in the openwrt patchset for several years now and needs
to go upstream as well. It includes the following changes:
1. Fix up inline function call to xway_mux_apply
2. Fix GPIO Setup of GPIO Port3
3. Implement gpio_chip.to_irq
Signed-off-by: John Crispin <blo...@openwrt.org>
Signed-off-by: Martin Schiller <mschil...@tdt.de>
---
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 a064962..f0b1b48 100644
--- a/drivers/pinctrl/pinctrl-xway.c
+++ b/drivers/pinctrl/pinctrl-xway.c
@@ -1496,10 +1496,9 @@ 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);
@@ -1519,6 +1518,14 @@ 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},
@@ -1563,12 +1570,28 @@ 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);
return 0;
}
+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,
@@ -1577,6 +1600,7 @@ static struct gpio_chip xway_chip = {
.set = xway_gpio_set,
.request = gpiochip_generic_request,
.free = gpiochip_generic_free,
+ .to_irq = xway_gpio_to_irq,
.base = -1,
};
--
2.1.4
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