From: Jianqun Xu <jay.xu@rock-chips.com>
Date: Tue, 13 Oct 2020 06:37:30 +0000 (+0800)
Subject: pinctrl: rockchip: enable gpio pclk for rockchip_gpio_to_irq
X-Git-Tag: v4.14.209~40
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=0ec799d3d60ad70ef253003fdd8e542a5bab77ed;p=users%2Fdwmw2%2Flinux.git

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 5d6cf024ee9c8..26974973ecdde 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2547,7 +2547,9 @@ 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;
 }