[PATCH v2 22/22] pinctrl: mediatek: add eint support to MT8183 pinctrl driver

[sean.wang]

From: Sean Wang <sean.w...@mediatek.com>

Just add eint support to MT8183 pinctrl driver as usual as
happens on the other SoCs.

Signed-off-by: Sean Wang <sean.w...@mediatek.com>
---
 drivers/pinctrl/mediatek/pinctrl-mt8183.c |  8 ++++++++
 drivers/pinctrl/mediatek/pinctrl-paris.c  | 22 ++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/drivers/pinctrl/mediatek/pinctrl-mt8183.c 
b/drivers/pinctrl/mediatek/pinctrl-mt8183.c
index 9d5aa27..6262fd3 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mt8183.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mt8183.c
@@ -492,11 +492,19 @@ static const char * const 
mt8183_pinctrl_register_base_names[] = {
        "iocfg6", "iocfg7", "iocfg8",
 };
 
+static const struct mtk_eint_hw mt8183_eint_hw = {
+       .port_mask = 7,
+       .ports     = 6,
+       .ap_num    = 212,
+       .db_cnt    = 13,
+};
+
 static const struct mtk_pin_soc mt8183_data = {
        .reg_cal = mt8183_reg_cals,
        .pins = mtk_pins_mt8183,
        .npins = ARRAY_SIZE(mtk_pins_mt8183),
        .ngrps = ARRAY_SIZE(mtk_pins_mt8183),
+       .eint_hw = &mt8183_eint_hw,
        .gpio_m = 0,
        .ies_present = true,
        .base_names = mt8183_pinctrl_register_base_names,
diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c 
b/drivers/pinctrl/mediatek/pinctrl-paris.c
index 50d6893..9f4224f 100644
--- a/drivers/pinctrl/mediatek/pinctrl-paris.c
+++ b/drivers/pinctrl/mediatek/pinctrl-paris.c
@@ -718,6 +718,22 @@ static int mtk_gpio_direction_output(struct gpio_chip 
*chip, unsigned int gpio,
        return pinctrl_gpio_direction_output(chip->base + gpio);
 }
 
+static int mtk_gpio_to_irq(struct gpio_chip *chip, unsigned int offset)
+{
+       struct mtk_pinctrl *hw = gpiochip_get_data(chip);
+       const struct mtk_pin_desc *desc;
+
+       if (!hw->eint)
+               return -ENOTSUPP;
+
+       desc = (const struct mtk_pin_desc *)&hw->soc->pins[offset];
+
+       if (desc->eint.eint_n == EINT_NA)
+               return -ENOTSUPP;
+
+       return mtk_eint_find_irq(hw->eint, desc->eint.eint_n);
+}
+
 static int mtk_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
                               unsigned long config)
 {
@@ -751,6 +767,7 @@ static int mtk_build_gpiochip(struct mtk_pinctrl *hw, 
struct device_node *np)
        chip->direction_output  = mtk_gpio_direction_output;
        chip->get               = mtk_gpio_get;
        chip->set               = mtk_gpio_set;
+       chip->to_irq            = mtk_gpio_to_irq,
        chip->set_config        = mtk_gpio_set_config,
        chip->base              = -1;
        chip->ngpio             = hw->soc->npins;
@@ -871,6 +888,11 @@ int mtk_paris_pinctrl_probe(struct platform_device *pdev,
        if (err)
                return err;
 
+       err = mtk_build_eint(hw, pdev);
+       if (err)
+               dev_warn(&pdev->dev,
+                        "Failed to add EINT, but pinctrl still can work\n");
+
        /* Build gpiochip should be after pinctrl_enable is done */
        err = mtk_build_gpiochip(hw, pdev->dev.of_node);
        if (err) {
-- 
2.7.4