pinctrl: rockchip: enable gpio pclk for rockchip_gpio_to_irq

[ Upstream commit 63fbf8013b2f6430754526ef9594f229c7219b1f ]

There need to enable pclk_gpio when do irq_create_mapping, since it will
do access to gpio controller.

Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Kever Yang<kever.yang@rock-chips.com>
Link: https://lore.kernel.org/r/20201013063731.3618-3-jay.xu@rock-chips.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 005df24f5b3f1f02c227b2924f95327f07f557bd..4d3b62707524aaeaccc18aac8669f2f1bf1ec806 100644 (file)
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2778,7 +2778,9 @@ static int rockchip_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
        if (!bank->domain)
                return -ENXIO;
 
+       clk_enable(bank->clk);
        virq = irq_create_mapping(bank->domain, offset);
+       clk_disable(bank->clk);
 
        return (virq) ? : -ENXIO;
 }