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    Subject[PATCH AUTOSEL 4.9 1/3] pinctrl: rockchip: enable gpio pclk for rockchip_gpio_to_irq
    Date
    From: Jianqun Xu <jay.xu@rock-chips.com>

    [ 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>
    ---
    drivers/pinctrl/pinctrl-rockchip.c | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
    index 417cd3bd7e0c9..ee2dcea1e54b9 100644
    --- a/drivers/pinctrl/pinctrl-rockchip.c
    +++ b/drivers/pinctrl/pinctrl-rockchip.c
    @@ -1815,7 +1815,9 @@ 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;
    }
    --
    2.27.0
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