linux-kernel - [PATCH v4 5/6] dt-bindings: drm/msm/gpu: Add optional resets

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Message-ID: <20220819221017.v4.5.Ieffadd08a071a233213ced4406bf84bb5922ab9a@changeid>
Date:   Fri, 19 Aug 2022 22:10:44 +0530
From:   Akhil P Oommen <quic_akhilpo@...cinc.com>
To:     freedreno <freedreno@...ts.freedesktop.org>,
        <dri-devel@...ts.freedesktop.org>, <linux-arm-msm@...r.kernel.org>,
        Rob Clark <robdclark@...il.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        "Stephen Boyd" <swboyd@...omium.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
CC:     Douglas Anderson <dianders@...omium.org>,
        <krzysztof.kozlowski@...aro.org>,
        Akhil P Oommen <quic_akhilpo@...cinc.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        "Sean Paul" <sean@...rly.run>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH v4 5/6] dt-bindings: drm/msm/gpu: Add optional resets

Add an optional reference to GPUCC reset which can be used to ensure cx
gdsc collapse during gpu recovery.

Signed-off-by: Akhil P Oommen <quic_akhilpo@...cinc.com>
---

Changes in v4:
- New patch in v4

 Documentation/devicetree/bindings/display/msm/gpu.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/msm/gpu.yaml b/Documentation/devicetree/bindings/display/msm/gpu.yaml
index 3397bc3..4576b31 100644
--- a/Documentation/devicetree/bindings/display/msm/gpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/gpu.yaml
@@ -109,6 +109,13 @@ properties:
       For GMU attached devices a phandle to the GMU device that will
       control the power for the GPU.
 
+  resets:
+    maxItems: 1
+
+  reset-names:
+    items:
+      - const: cx_collapse
+
 
 required:
   - compatible
-- 
2.7.4