diff mbox series

[2/3] arm64: dts: qcom: sm8150: Add DISPCC node

Message ID 20221212093315.11390-2-konrad.dybcio@linaro.org
State New
Headers show
Series [1/3] dt-bindings: display/msm: Add SM8150 MDSS & DPU | expand

Commit Message

Konrad Dybcio Dec. 12, 2022, 9:33 a.m. UTC
Years after the SoC support has been added, it's high time for it to
get dispcc going. Add the node to ensure that.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8150.dtsi | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

Comments

Bjorn Andersson Dec. 28, 2022, 4:16 a.m. UTC | #1
On Mon, Dec 12, 2022 at 10:33:13AM +0100, Konrad Dybcio wrote:
> Years after the SoC support has been added, it's high time for it to
> get dispcc going. Add the node to ensure that.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/sm8150.dtsi | 26 ++++++++++++++++++++++++++
>  1 file changed, 26 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8150.dtsi b/arch/arm64/boot/dts/qcom/sm8150.dtsi
> index a0c57fb798d3..ff04397777f4 100644
> --- a/arch/arm64/boot/dts/qcom/sm8150.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8150.dtsi
> @@ -3579,6 +3579,32 @@ camnoc_virt: interconnect@ac00000 {
>  			qcom,bcm-voters = <&apps_bcm_voter>;
>  		};
>  
> +		dispcc: clock-controller@af00000 {
> +			compatible = "qcom,sm8150-dispcc";
> +			reg = <0 0x0af00000 0 0x10000>;
> +			clocks = <&rpmhcc RPMH_CXO_CLK>,
> +				 <0>,
> +				 <0>,
> +				 <0>,
> +				 <0>,
> +				 <0>,
> +				 <0>;
> +			clock-names = "bi_tcxo",
> +				      "dsi0_phy_pll_out_byteclk",
> +				      "dsi0_phy_pll_out_dsiclk",
> +				      "dsi1_phy_pll_out_byteclk",
> +				      "dsi1_phy_pll_out_dsiclk",
> +				      "dp_phy_pll_link_clk",
> +				      "dp_phy_pll_vco_div_clk";
> +			#clock-cells = <1>;
> +			#reset-cells = <1>;
> +			#power-domain-cells = <1>;
> +
> +			power-domains = <&rpmhpd SM8150_MMCX>;
> +			/* TODO: Maybe rpmhpd_opp_min_svs could work as well? */

The power-domain being not disabled should be sufficient for us to
access the dispcc. Beyond that votes would be needed for particular
frequencies, and that goes in the client nodes/opp-tables.

So you should be able to drop this comment and the required-opps.

Regards,
Bjorn

> +			required-opps = <&rpmhpd_opp_low_svs>;
> +		};
> +
>  		pdc: interrupt-controller@b220000 {
>  			compatible = "qcom,sm8150-pdc", "qcom,pdc";
>  			reg = <0 0x0b220000 0 0x400>;
> -- 
> 2.38.1
>
Marijn Suijten Dec. 28, 2022, 11:10 p.m. UTC | #2
On 2022-12-27 22:16:58, Bjorn Andersson wrote:
> On Mon, Dec 12, 2022 at 10:33:13AM +0100, Konrad Dybcio wrote:
> > [..]
> > +			power-domains = <&rpmhpd SM8150_MMCX>;
> > +			/* TODO: Maybe rpmhpd_opp_min_svs could work as well? */
> 
> The power-domain being not disabled should be sufficient for us to
> access the dispcc. Beyond that votes would be needed for particular
> frequencies, and that goes in the client nodes/opp-tables.
> 
> So you should be able to drop this comment and the required-opps.
> 
> Regards,
> Bjorn
> 
> > +			required-opps = <&rpmhpd_opp_low_svs>;

Tested the removal of this on Xperia 5, no regressions.

- Marijn
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/sm8150.dtsi b/arch/arm64/boot/dts/qcom/sm8150.dtsi
index a0c57fb798d3..ff04397777f4 100644
--- a/arch/arm64/boot/dts/qcom/sm8150.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8150.dtsi
@@ -3579,6 +3579,32 @@  camnoc_virt: interconnect@ac00000 {
 			qcom,bcm-voters = <&apps_bcm_voter>;
 		};
 
+		dispcc: clock-controller@af00000 {
+			compatible = "qcom,sm8150-dispcc";
+			reg = <0 0x0af00000 0 0x10000>;
+			clocks = <&rpmhcc RPMH_CXO_CLK>,
+				 <0>,
+				 <0>,
+				 <0>,
+				 <0>,
+				 <0>,
+				 <0>;
+			clock-names = "bi_tcxo",
+				      "dsi0_phy_pll_out_byteclk",
+				      "dsi0_phy_pll_out_dsiclk",
+				      "dsi1_phy_pll_out_byteclk",
+				      "dsi1_phy_pll_out_dsiclk",
+				      "dp_phy_pll_link_clk",
+				      "dp_phy_pll_vco_div_clk";
+			#clock-cells = <1>;
+			#reset-cells = <1>;
+			#power-domain-cells = <1>;
+
+			power-domains = <&rpmhpd SM8150_MMCX>;
+			/* TODO: Maybe rpmhpd_opp_min_svs could work as well? */
+			required-opps = <&rpmhpd_opp_low_svs>;
+		};
+
 		pdc: interrupt-controller@b220000 {
 			compatible = "qcom,sm8150-pdc", "qcom,pdc";
 			reg = <0 0x0b220000 0 0x400>;