linux-kernel - [PATCH v3 07/14] arm64: dts: qcom: sc7280: Add edp

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Date:   Wed,  2 Feb 2022 13:23:41 -0800
From:   Douglas Anderson <dianders@...omium.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     pmaliset@...eaurora.org, mka@...omium.org,
        quic_rjendra@...cinc.com,
        Shaik Sajida Bhanu <sbhanu@...eaurora.org>,
        kgodara@...eaurora.org, konrad.dybcio@...ainline.org,
        Sankeerth Billakanti <quic_sbillaka@...cinc.com>,
        sibis@...eaurora.org, swboyd@...omium.org,
        Douglas Anderson <dianders@...omium.org>,
        Andy Gross <agross@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 07/14] arm64: dts: qcom: sc7280: Add edp_out port and HPD lines

Like dp_out, we should have defined edp_out in sc7280.dtsi so we don't
need to do this in the board files.

Like dp_hot_plug_det, we should define edp_hot_plug_det in
sc7280.dtsi.

We should set the default pinctrl for edp_hot_plug_det in
sc7280.dtsi. NOTE: this is _unlike_ the dp_hot_plug_det. It is
reasonable that in some boards the dedicated DP Hot Plug Detect will
not be hooked up in favor of Type C mechanisms. This is unlike eDP
where the Hot Plug Detect line (which functions as "panel ready" in
eDP) is highly likely to be used by boards.

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

Changes in v3:
- ("Add edp_out port and HPD lines") new for v3.

 arch/arm64/boot/dts/qcom/sc7280.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 4d5892411a38..3f9837921c17 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -3010,6 +3010,8 @@ mdss_dsi_phy: phy@...4400 {
 
 			mdss_edp: edp@...0000 {
 				compatible = "qcom,sc7280-edp";
+				pinctrl-names = "default";
+				pinctrl-0 = <&edp_hot_plug_det>;
 
 				reg = <0 0xaea0000 0 0x200>,
 				      <0 0xaea0200 0 0x200>,
@@ -3052,12 +3054,18 @@ mdss_edp: edp@...0000 {
 				ports {
 					#address-cells = <1>;
 					#size-cells = <0>;
+
 					port@0 {
 						reg = <0>;
 						edp_in: endpoint {
 							remote-endpoint = <&dpu_intf5_out>;
 						};
 					};
+
+					port@1 {
+						reg = <1>;
+						edp_out: endpoint { };
+					};
 				};
 
 				edp_opp_table: opp-table {
@@ -3277,6 +3285,11 @@ dp_hot_plug_det: dp-hot-plug-det {
 				bias-disable;
 			};
 
+			edp_hot_plug_det: edp-hot-plug-det {
+				pins = "gpio60";
+				function = "edp_hot";
+			};
+
 			pcie1_clkreq_n: pcie1-clkreq-n {
 				pins = "gpio79";
 				function = "pcie1_clkreqn";
-- 
2.35.0.rc2.247.g8bbb082509-goog