linux-kernel - [PATCH v3 03/15] arm64: dts: qcom: sdm845: Add the missing clocks on the dispcc

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Date:   Thu, 30 Jan 2020 13:12:19 -0800
From:   Douglas Anderson <dianders@...omium.org>
To:     Rob Herring <robh@...nel.org>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     Jeffrey Hugo <jhugo@...eaurora.org>,
        Taniya Das <tdas@...eaurora.org>, jeffrey.l.hugo@...il.com,
        linux-arm-msm@...r.kernel.org, harigovi@...eaurora.org,
        devicetree@...r.kernel.org, mka@...omium.org,
        kalyan_t@...eaurora.org, Mark Rutland <mark.rutland@....com>,
        linux-clk@...r.kernel.org, hoegsberg@...omium.org,
        Douglas Anderson <dianders@...omium.org>,
        linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>
Subject: [PATCH v3 03/15] arm64: dts: qcom: sdm845: Add the missing clocks on the dispcc

We're transitioning over to requiring the Qualcomm Display Clock
Controller to specify all the input clocks.  Let's add them for
sdm845.

NOTES:
- Until the Linux driver for sdm845's dispcc is updated, these clocks
  will not actually be used in Linux.  It will continue to use global
  clock names to match things up.
- Although the clocks from the DP PHY are required, the DP PHY isn't
  represented in the dts yet.  Apparently the magic for this is just
  to use <0>.

Signed-off-by: Douglas Anderson <dianders@...omium.org>
---

Changes in v3:
- Newly discovered gcc_disp_gpll0_div_clk_src added.
- Unlike in v2, use internal name instead of purist name.

Changes in v2:
- Patch ("arm64: dts: qcom: sdm845: Add...dispcc") new for v2.

 arch/arm64/boot/dts/qcom/sdm845.dtsi | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index d42302b8889b..0985813fee50 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -2933,6 +2933,24 @@ opp-200000000 {
 		dispcc: clock-controller@...0000 {
 			compatible = "qcom,sdm845-dispcc";
 			reg = <0 0x0af00000 0 0x10000>;
+			clocks = <&rpmhcc RPMH_CXO_CLK>,
+				 <&gcc GCC_DISP_GPLL0_CLK_SRC>,
+				 <&gcc GCC_DISP_GPLL0_DIV_CLK_SRC>,
+				 <&dsi0_phy 0>,
+				 <&dsi0_phy 1>,
+				 <&dsi1_phy 0>,
+				 <&dsi1_phy 1>,
+				 <0>,
+				 <0>;
+			clock-names = "bi_tcxo",
+				      "gcc_disp_gpll0_clk_src",
+				      "gcc_disp_gpll0_div_clk_src",
+				      "dsi0_phy_pll_out_byteclk",
+				      "dsi0_phy_pll_out_dsiclk",
+				      "dsi1_phy_pll_out_byteclk",
+				      "dsi1_phy_pll_out_dsiclk",
+				      "dp_link_clk_divsel_ten",
+				      "dp_vco_divided_clk_src_mux";
 			#clock-cells = <1>;
 			#reset-cells = <1>;
 			#power-domain-cells = <1>;
-- 
2.25.0.341.g760bfbb309-goog