linux-kernel - [PATCH v2] arm64: dts: qcom: sc7180: Add Display Port dt node

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Message-Id: <20200618232113.22687-1-tanmay@codeaurora.org>
Date:   Thu, 18 Jun 2020 16:21:13 -0700
From:   Tanmay Shah <tanmay@...eaurora.org>
To:     swboyd@...omium.org, agross@...nel.org
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, seanpaul@...omium.org,
        robdclark@...il.com, dianders@...omium.org,
        aravindh@...eaurora.org, abhinavk@...eaurora.org,
        bjorn.andersson@...aro.org, Tanmay Shah <tanmay@...eaurora.org>
Subject: [PATCH v2] arm64: dts: qcom: sc7180: Add Display Port dt node

Enable DP driver for sc7180.

This change depends-on following series:
https://patchwork.freedesktop.org/series/78583/
and https://patchwork.freedesktop.org/patch/351990/

Changes in v2:

- Add assigned-clocks and assigned-clock-parents
- Remove cell-index and pixel_rcg
- Change compatible to qcom,sc7180-dp

Signed-off-by: Tanmay Shah <tanmay@...eaurora.org>
---
 arch/arm64/boot/dts/qcom/sc7180.dtsi | 57 ++++++++++++++++++++++++++--
 1 file changed, 53 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index 916401f7e87c..26fe623e3b0f 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -2216,10 +2216,19 @@ ports {
 					#address-cells = <1>;
 					#size-cells = <0>;
 
+					port@1 {
+						reg = <1>;
+						dpu_intf1_out: endpoint {
+							remote-endpoint =
+								 <&dsi0_in>;
+						};
+					};
+
 					port@0 {
 						reg = <0>;
-						dpu_intf1_out: endpoint {
-							remote-endpoint = <&dsi0_in>;
+						dpu_intf0_out: endpoint {
+							remote-endpoint =
+								 <&dp_in>;
 						};
 					};
 				};
@@ -2293,6 +2302,46 @@ dsi_phy: dsi-phy@...4400 {
 			};
 		};
 
+		msm_dp: displayport-controller@...0000{
+			status = "ok";
+			compatible = "qcom,sc7180-dp";
+
+			reg = <0 0xae90000 0 0x1400>;
+			reg-names = "dp_controller";
+
+			interrupt-parent = <&mdss>;
+			interrupts = <12 0>;
+
+			clocks = <&dispcc DISP_CC_MDSS_DP_AUX_CLK>,
+				 <&dispcc DISP_CC_MDSS_DP_LINK_CLK>,
+				 <&dispcc DISP_CC_MDSS_DP_LINK_INTF_CLK>,
+				 <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK>;
+			clock-names = "core_aux", "ctrl_link",
+				      "ctrl_link_iface", "stream_pixel";
+			#clock-cells = <1>;
+			assigned-clocks = <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK_SRC>;
+			assigned-clock-parents = <&msm_dp 1>;
+
+			data-lanes = <0 1>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 {
+					reg = <0>;
+					dp_in: endpoint {
+						remote-endpoint =
+							 <&dpu_intf0_out>;
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+					dp_out: endpoint { };
+				};
+			};
+		};
+
 		dispcc: clock-controller@...0000 {
 			compatible = "qcom,sc7180-dispcc";
 			reg = <0 0x0af00000 0 0x200000>;
@@ -2300,8 +2349,8 @@ dispcc: clock-controller@...0000 {
 				 <&gcc GCC_DISP_GPLL0_CLK_SRC>,
 				 <&dsi_phy 0>,
 				 <&dsi_phy 1>,
-				 <0>,
-				 <0>;
+				 <&msm_dp 0>,
+				 <&msm_dp 1>;
 			clock-names = "bi_tcxo",
 				      "gcc_disp_gpll0_clk_src",
 				      "dsi0_phy_pll_out_byteclk",
-- 
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