Re: [PATCH 5/5] ARM: dts: rockchip: vdd_gpu off in suspend for rk3288-veyron

[elaine.zhang]

hi,

在 2019/4/12 上午7:21, Douglas Anderson 写道:
> At some point long long ago the downstream GPU driver would crash if
> we turned the GPU off during suspend.  For some context you can see:
>
> https://chromium-review.googlesource.com/#/c/215780/5..6/arch/arm/boot/dts/rk3288-pinky-rev2.dts
>
> At some point in time not too long after that got fixed.
>
> It's unclear why the GPU is left enabled during suspend on the
> mainline kernel.  Everything seems fine if I turn this off, so let's
> do it.
>
> Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
> ---
>
>   arch/arm/boot/dts/rk3288-veyron.dtsi | 3 +--
>   1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/rk3288-veyron.dtsi b/arch/arm/boot/dts/rk3288-veyron.dtsi
> index 279d7f4ecce0..1252522392c7 100644
> --- a/arch/arm/boot/dts/rk3288-veyron.dtsi
> +++ b/arch/arm/boot/dts/rk3288-veyron.dtsi
> @@ -217,8 +217,7 @@
>   				regulator-max-microvolt = <1250000>;
>   				regulator-ramp-delay = <6001>;
>   				regulator-state-mem {
> -					regulator-on-in-suspend;
> -					regulator-suspend-microvolt = <1000000>;
> +					regulator-off-in-suspend;
>   				};
>   			};
>   

Reviewed-by: Elaine Zhang<zhangqing@xxxxxxxxxxxxxx>