Re: [PATCH v7 2/2] arm64: dts: qcom: Add display support for QCS615 RIDE board

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On 8/28/2025 4:01 AM, Dmitry Baryshkov wrote:
On Wed, Aug 27, 2025 at 09:08:39PM +0800, Fange Zhang wrote:
From: Li Liu <li.liu@xxxxxxxxxxxxxxxx>

Add display MDSS and DSI configuration for QCS615 RIDE board.
QCS615 has a DP port, and DP support will be added in a later patch.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
Signed-off-by: Li Liu <li.liu@xxxxxxxxxxxxxxxx>
Signed-off-by: Fange Zhang <fange.zhang@xxxxxxxxxxxxxxxx>
---
  arch/arm64/boot/dts/qcom/qcs615-ride.dts | 150 +++++++++++++++++++++++++++++++
  1 file changed, 150 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs615-ride.dts b/arch/arm64/boot/dts/qcom/qcs615-ride.dts
index e663343df75d59481786192cde647017a83c4191..f6e0c82cf85459d8989332497ded8b6ea3670c76 100644
--- a/arch/arm64/boot/dts/qcom/qcs615-ride.dts
+++ b/arch/arm64/boot/dts/qcom/qcs615-ride.dts
@@ -39,6 +39,76 @@ xo_board_clk: xo-board-clk {
  		};
  	};
+ dp-dsi0-connector {
+		compatible = "dp-connector";
+		label = "DSI0";
+		type = "mini";
+
+		port {
+			dp_dsi0_connector_in: endpoint {
+				remote-endpoint = <&dsi2dp_bridge_out>;
+			};
+		};
+	};
+
+	vreg_12p0: vreg-12p0-regulator {

I should be more carefull when doing reviews. I thought that it was
pointed out already and didn't some of the obvious things...

First of all, the nodes are sorted. By the name, not by the label.
Second, there are already regulators in this file. Why are the new nodes
not following the existing pattern and why are they not placed at a
proper place?

Initially, we referred to https://patchwork.kernel.org/project/linux-arm-msm/patch/20250604071851.1438612-3-quic_amakhija@xxxxxxxxxxx/ as a reference, but its node ordering seems a bit unconventional.

Would this revised ordering be acceptable?

...
+ dp-dsi0-connector

vreg_conn_1p8: regulator-conn-1p8
vreg_conn_pa: regulator-conn-pa
regulator-usb2-vbus

+ vreg_12p0: vreg-12p0-regulator
+ vreg_1p0: vreg-1p0-regulator
+ vreg_1p8: vreg-1p8-regulator
+ vreg_3p0: vreg-3p0-regulator
+ vreg_5p0: vreg-5p0-regulator
wcn6855-pmu
...



[.... skipped all defined regulators ...]

+	};
+
  	vreg_conn_1p8: regulator-conn-1p8 {

Tadam! It's even a part of the patch.

  		compatible = "regulator-fixed";
  		regulator-name = "vreg_conn_1p8";






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