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    Subject[PATCH 1/6] arm64: dts: rockchip: Fix rk3399-roc-pc pwm2 pin
    Date
    ROC-PC is not able to boot linux console if PWM2_d is
    unattached to any pinctrl logic.

    To be precise the linux boot hang with last logs as,
    ...
    .....
    [ 0.003367] Console: colour dummy device 80x25
    [ 0.003788] printk: console [tty0] enabled
    [ 0.004178] printk: bootconsole [uart8250] disabled

    In ROC-PC the PWM2_d pin is connected to LOG_DVS_PWM of
    VDD_LOG. So, for normal working operations this needs to
    active and pull-down.

    This patch fix, by attaching pinctrl active and pull-down
    the pwm2.

    Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
    ---
    arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts
    index 19f7732d728c..c53f3d571620 100644
    --- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts
    +++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dts
    @@ -548,6 +548,8 @@
    };

    &pwm2 {
    + pinctrl-names = "active";
    + pinctrl-0 = <&pwm2_pin_pull_down>;
    status = "okay";
    };

    --
    2.18.0.321.gffc6fa0e3
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