Implement gpio_request_enable() ops so that the gpio request() ops can be implemented and a gpio requested pin automatically is pinmuxed for gpio use, similar to Linux kernel.
Signed-off-by: Jonas Karlman jonas@kwiboo.se --- v2: New patch from "rockchip: Add gpio request() ops" series --- drivers/pinctrl/rockchip/pinctrl-rockchip-core.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c b/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c index 345e0abdf5d1..e164af0d8f61 100644 --- a/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c +++ b/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c @@ -358,6 +358,18 @@ static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux) return 0; }
+static int rockchip_pinctrl_gpio_request_enable(struct udevice *dev, + unsigned int selector) +{ + struct rockchip_pin_bank *bank; + + bank = rockchip_pin_to_bank(dev, selector); + if (!bank) + return -EINVAL; + + return rockchip_set_mux(bank, selector - bank->pin_base, RK_FUNC_GPIO); +} + static int rockchip_perpin_drv_list[DRV_TYPE_MAX][8] = { { 2, 4, 8, 12, -1, -1, -1, -1 }, { 3, 6, 9, 12, -1, -1, -1, -1 }, @@ -608,6 +620,7 @@ const struct pinctrl_ops rockchip_pinctrl_ops = { .set_state = rockchip_pinctrl_set_state, .get_gpio_mux = rockchip_pinctrl_get_gpio_mux, .get_pin_muxing = rockchip_pinctrl_get_pin_muxing, + .gpio_request_enable = rockchip_pinctrl_gpio_request_enable, };
/* retrieve the soc specific data */