From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Thu, 13 Jun 2024 17:05:04 +0000 (+0300)
Subject: dt-bindings: display/msm/dsi: allow specifying TE source
X-Git-Tag: v6.11-rc1~141^2~4^2~32
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ec66abb42d78c09c5a887e446f3d49c1af3560a0;p=thirdparty%2Fkernel%2Flinux.git

dt-bindings: display/msm/dsi: allow specifying TE source

Command mode panels provide TE signal back to the DSI host to signal
that the frame display has completed and update of the image will not
cause tearing. Usually it is connected to the first GPIO with the
mdp_vsync function, which is the default. In such case the property can
be skipped.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/598732/
Link: https://lore.kernel.org/r/20240613-dpu-handle-te-signal-v2-1-67a0116b5366@linaro.org
---

diff --git a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
index 1fa28e9765593..e1cb3a1fee81e 100644
--- a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
@@ -162,6 +162,22 @@ properties:
                 items:
                   enum: [ 0, 1, 2, 3 ]
 
+              qcom,te-source:
+                $ref: /schemas/types.yaml#/definitions/string
+                description:
+                  Specifies the source of vsync signal from the panel used for
+                  tearing elimination.
+                default: mdp_vsync_p
+                enum:
+                  - mdp_vsync_p
+                  - mdp_vsync_s
+                  - mdp_vsync_e
+                  - timer0
+                  - timer1
+                  - timer2
+                  - timer3
+                  - timer4
+
     required:
       - port@0
       - port@1
@@ -452,6 +468,7 @@ examples:
                           dsi0_out: endpoint {
                                    remote-endpoint = <&sn65dsi86_in>;
                                    data-lanes = <0 1 2 3>;
+                                   qcom,te-source = "mdp_vsync_e";
                           };
                   };
            };