linux-kernel - [PATCH v5] arm64: dts: qcom: sc7180: Add Display Port dt node

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Message-Id: <20200811021553.25023-1-tanmay@codeaurora.org>
Date:   Mon, 10 Aug 2020 19:15:53 -0700
From:   Tanmay Shah <tanmay@...eaurora.org>
To:     swboyd@...omium.org, devicetree@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        robdclark@...il.com
Cc:     linux-kernel@...r.kernel.org, freedreno@...ts.freedesktop.org,
        seanpaul@...omium.org, daniel@...ll.ch, airlied@...ux.ie,
        aravindh@...eaurora.org, abhinavk@...eaurora.org,
        khsieh@...eaurora.org, Tanmay Shah <tanmay@...eaurora.org>
Subject: [PATCH v5] arm64: dts: qcom: sc7180: Add Display Port dt node

Add DP device node on sc7180.

Changes in v2:

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

Changes in v3:
- Update commit text
- Make DP child node of MDSS
- Remove data-lanes property from SOC dts
- Disable DP node in SOC dts
- Assign DP to Port2 in MDP node
- Add MDSS AHB clock in DP device node

Changes in v4:
- Remove redundant reg-names property
- Use IRQ flag instead had hard coded value.
- Add link clock source in assigned-clocks list.

Changes in v5:
- Add OPP table and power-domains for DisplayPort

This patch depends-on following series:
https://lore.kernel.org/dri-devel/20200807071718.17937-1-tanmay@codeaurora.org/

Signed-off-by: Tanmay Shah <tanmay@...eaurora.org>
Co-developed-by: Kuogee Hsieh <khsieh@...eaurora.org>
Signed-off-by: Kuogee Hsieh <khsieh@...eaurora.org>
---
 arch/arm64/boot/dts/qcom/sc7180.dtsi | 76 +++++++++++++++++++++++++++-
 1 file changed, 74 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index 31b9217bb5bf..2998fae863a7 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -2371,6 +2371,13 @@ dpu_intf1_out: endpoint {
 							remote-endpoint = <&dsi0_in>;
 						};
 					};
+
+					port@2 {
+						reg = <2>;
+						dpu_intf0_out: endpoint {
+							remote-endpoint = <&dp_in>;
+						};
+					};
 				};
 			};
 
@@ -2440,6 +2447,71 @@ dsi_phy: dsi-phy@...4400 {
 
 				status = "disabled";
 			};
+
+			msm_dp: displayport-controller@...0000 {
+				status = "disabled";
+				compatible = "qcom,sc7180-dp";
+
+				reg = <0 0x0ae90000 0 0x1400>;
+
+				interrupt-parent = <&mdss>;
+				interrupts = <12 IRQ_TYPE_NONE>;
+
+				clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+					 <&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_iface", "core_aux", "ctrl_link",
+					      "ctrl_link_iface", "stream_pixel";
+				#clock-cells = <1>;
+				assigned-clocks = <&dispcc DISP_CC_MDSS_DP_LINK_CLK_SRC>,
+						  <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK_SRC>;
+				assigned-clock-parents = <&msm_dp 0>, <&msm_dp 1>;
+
+				operating-points-v2 = <&dp_opp_table>;
+				power-domains = <&rpmhpd SC7180_CX>;
+
+				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 { };
+					};
+				};
+
+				dp_opp_table: dp-opp-table {
+					compatible = "operating-points-v2";
+
+					opp-160000000 {
+						opp-hz = /bits/ 64 <160000000>;
+						required-opps = <&rpmhpd_opp_low_svs>;
+					};
+
+					opp-270000000 {
+						opp-hz = /bits/ 64 <270000000>;
+						required-opps = <&rpmhpd_opp_svs>;
+					};
+
+					opp-540000000 {
+						opp-hz = /bits/ 64 <540000000>;
+						required-opps = <&rpmhpd_opp_svs_l1>;
+					};
+
+					opp-810000000 {
+						opp-hz = /bits/ 64 <810000000>;
+						required-opps = <&rpmhpd_opp_nom>;
+					};
+				};
+			};
 		};
 
 		dispcc: clock-controller@...0000 {
@@ -2449,8 +2521,8 @@ 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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