Re: [PATCH v2 3/4] arm64: dts: sdm845: move bus clock to mdp node for sdm845 target

[Dmitry Baryshkov <dmitry.baryshkov@linaro.org>]

On 07/04/2021 18:01, Dmitry Baryshkov wrote:
> Move the bus clock to mdp device node,in order to facilitate bus band
> width scaling on sdm845 target.
> 
> The parent device MDSS will not vote for bus bw, instead the vote will
> be triggered by mdp device node. Since a minimum vote is required to
> turn on bus clock, move the clock node to mdp device from where the
> votes are requested.

drm/msm patches were merged through the msm tree (targeting 5.13). 
Shouldn't we also merge these two patches (targeting 5.13 as fixes or 5.14)?

> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
>   arch/arm64/boot/dts/qcom/sdm845.dtsi | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> index 7395ef20b90e..55704804c2ca 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> @@ -4136,9 +4136,8 @@ mdss: mdss@ae00000 {
>   			power-domains = <&dispcc MDSS_GDSC>;
>   
>   			clocks = <&gcc GCC_DISP_AHB_CLK>,
> -				 <&gcc GCC_DISP_AXI_CLK>,
>   				 <&dispcc DISP_CC_MDSS_MDP_CLK>;
> -			clock-names = "iface", "bus", "core";
> +			clock-names = "iface", "core";
>   
>   			assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>;
>   			assigned-clock-rates = <300000000>;
> @@ -4166,11 +4165,12 @@ mdss_mdp: mdp@ae01000 {
>   				      <0 0x0aeb0000 0 0x2008>;
>   				reg-names = "mdp", "vbif";
>   
> -				clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
> +				clocks = <&gcc GCC_DISP_AXI_CLK>,
> +					 <&dispcc DISP_CC_MDSS_AHB_CLK>,
>   					 <&dispcc DISP_CC_MDSS_AXI_CLK>,
>   					 <&dispcc DISP_CC_MDSS_MDP_CLK>,
>   					 <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
> -				clock-names = "iface", "bus", "core", "vsync";
> +				clock-names = "gcc-bus", "iface", "bus", "core", "vsync";
>   
>   				assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>,
>   						  <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
> 


-- 
With best wishes
Dmitry