[v1] arm64/dts/qcom/sc7280: update mdp clk to max supported value to support higher refresh rates
Stephen Boyd
swboyd at chromium.org
Tue Feb 22 20:58:06 UTC 2022
Quoting Vinod Polimera (2022-02-21 05:12:06)
> Panels with higher refresh rate will need mdp clk above 300Mhz.
> Select max frequency for mdp clock during bootup, dpu driver will
> scale down the clock as per usecase when first update from the framework is received.
>
> Signed-off-by: Vinod Polimera <quic_vpolimer at quicinc.com>
Please add a Fixes tag.
> ---
> arch/arm64/boot/dts/qcom/sc7280.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> index baf1653..7af96fc 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> @@ -2895,7 +2895,7 @@
> assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>,
> <&dispcc DISP_CC_MDSS_VSYNC_CLK>,
> <&dispcc DISP_CC_MDSS_AHB_CLK>;
> - assigned-clock-rates = <300000000>,
> + assigned-clock-rates = <506666667>,
Why not simply remove the clock assignment and set the rate based on the
OPP when the driver probes?
> <19200000>,
> <19200000>;
> operating-points-v2 = <&mdp_opp_table>;
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