for virtual gpios, they should not do reg setting and
should behave as expected for eint function.
Signed-off-by: Mars Cheng <mars.cheng@xxxxxxxxxxxx>
---
drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c | 20 ++++++++++++++++++++
drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h | 1 +
drivers/pinctrl/mediatek/pinctrl-paris.c | 3 +++
3 files changed, 24 insertions(+)
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
index 20e1c89..04948a6 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
@@ -226,6 +226,23 @@ static int mtk_xt_find_eint_num(struct mtk_pinctrl *hw, unsigned long eint_n)
return EINT_NA;
}
+bool mtk_is_virt_gpio(struct mtk_pinctrl *hw, unsigned int gpio_n)
+{
+ const struct mtk_pin_desc *desc;
+ bool virt_gpio = false;
+
+ if (gpio_n >= hw->soc->npins)
+ return virt_gpio;
+
+ desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio_n];
+
+ if (desc->funcs &&
+ desc->funcs[desc->eint.eint_m].name == 0)
+ virt_gpio = true;
+
+ return virt_gpio;
+}
+
static int mtk_xt_get_gpio_n(void *data, unsigned long eint_n,
unsigned int *gpio_n,
struct gpio_chip **gpio_chip)
@@ -278,6 +295,9 @@ static int mtk_xt_set_gpio_as_eint(void *data, unsigned long eint_n)
if (err)
return err;
+ if (mtk_is_virt_gpio(hw, gpio_n))
+ return 0;
+
desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio_n];
err = mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_MODE,
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h
index 1b7da42..cda1c7a0 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.h
@@ -299,4 +299,5 @@ int mtk_pinconf_adv_drive_set(struct mtk_pinctrl *hw,
int mtk_pinconf_adv_drive_get(struct mtk_pinctrl *hw,
const struct mtk_pin_desc *desc, u32 *val);
+bool mtk_is_virt_gpio(struct mtk_pinctrl *hw, unsigned int gpio_n);
#endif /* __PINCTRL_MTK_COMMON_V2_H */
diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c
index 923264d..ef479ea 100644
--- a/drivers/pinctrl/mediatek/pinctrl-paris.c
+++ b/drivers/pinctrl/mediatek/pinctrl-paris.c
@@ -693,6 +693,9 @@ static int mtk_gpio_get_direction(struct gpio_chip *chip, unsigned int gpio)
const struct mtk_pin_desc *desc;
int value, err;
+ if (mtk_is_virt_gpio(hw, gpio))
+ return 1;
+
desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio];
err = mtk_hw_get_value(hw, desc, PINCTRL_PIN_REG_DIR, &value);
--
1.7.9.5
