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* [PATCH] arm64: dts: qcom: enable dual ("bonded") DSI mode for DB845c
@ 2023-05-04 16:04 Dmitry Baryshkov
  2023-05-04 17:11 ` Konrad Dybcio
  2023-05-25  4:53 ` Bjorn Andersson
  0 siblings, 2 replies; 5+ messages in thread
From: Dmitry Baryshkov @ 2023-05-04 16:04 UTC (permalink / raw)
  To: Andy Gross, Bjorn Andersson, Konrad Dybcio, Rob Clark, Sean Paul,
	Abhinav Kumar, Marijn Suijten, Rob Herring, Krzysztof Kozlowski
  Cc: Stephen Boyd, David Airlie, Daniel Vetter, linux-arm-msm,
	devicetree, dri-devel, freedreno, Amit Pundir

Now as both lt9611 and drm/msm drivers were updated to handle the 4k
modes over DSI, enable "bonded" DSI mode on DB845c. This way the board
utilizes both DSI links and thus can support 4k on the HDMI output.

Cc: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 36 ++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
index e14fe9bbb386..4dea2c04b22f 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
@@ -419,6 +419,9 @@ &dsi0 {
 	status = "okay";
 	vdda-supply = <&vreg_l26a_1p2>;
 
+	qcom,dual-dsi-mode;
+	qcom,master-dsi;
+
 	ports {
 		port@1 {
 			endpoint {
@@ -434,6 +437,31 @@ &dsi0_phy {
 	vdds-supply = <&vreg_l1a_0p875>;
 };
 
+&dsi1 {
+	vdda-supply = <&vreg_l26a_1p2>;
+
+	qcom,dual-dsi-mode;
+
+	/* DSI1 is slave, so use DSI0 clocks */
+	assigned-clock-parents = <&dsi0_phy 0>, <&dsi0_phy 1>;
+
+	status = "okay";
+
+	ports {
+		port@1 {
+			endpoint {
+				remote-endpoint = <&lt9611_b>;
+				data-lanes = <0 1 2 3>;
+			};
+		};
+	};
+};
+
+&dsi1_phy {
+	vdds-supply = <&vreg_l1a_0p875>;
+	status = "okay";
+};
+
 &gcc {
 	protected-clocks = <GCC_QSPI_CORE_CLK>,
 			   <GCC_QSPI_CORE_CLK_SRC>,
@@ -493,6 +521,14 @@ lt9611_a: endpoint {
 				};
 			};
 
+			port@1 {
+				reg = <1>;
+
+				lt9611_b: endpoint {
+					remote-endpoint = <&dsi1_out>;
+				};
+			};
+
 			port@2 {
 				reg = <2>;
 
-- 
2.39.2


^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2023-05-25  4:51 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
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2023-05-04 16:04 [PATCH] arm64: dts: qcom: enable dual ("bonded") DSI mode for DB845c Dmitry Baryshkov
2023-05-04 17:11 ` Konrad Dybcio
2023-05-04 17:47   ` Dmitry Baryshkov
2023-05-04 17:53     ` Konrad Dybcio
2023-05-25  4:53 ` Bjorn Andersson

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