linux-kernel - [PATCH V2 1/3] dt-bindings: display: mediatek: Update disp

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Date:   Mon, 11 Apr 2022 11:58:41 +0800
From:   Rex-BC Chen <rex-bc.chen@...iatek.com>
To:     <chunkuang.hu@...nel.org>, <robh+dt@...nel.org>,
        <krzk+dt@...nel.org>, <matthias.bgg@...il.com>
CC:     <p.zabel@...gutronix.de>, <airlied@...ux.ie>,
        <yongqiang.niu@...iatek.com>, <jason-jh.lin@...iatek.com>,
        <nancy.lin@...iatek.com>, <allen-kh.cheng@...iatek.com>,
        <dri-devel@...ts.freedesktop.org>,
        <linux-mediatek@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        Rex-BC Chen <rex-bc.chen@...iatek.com>
Subject: [PATCH V2 1/3] dt-bindings: display: mediatek: Update disp_aal binding for MT8183

The driver data of MT8183 and MT8173 are different.

For MT8173, the gamma module is inside disp_aal. When we need to adjust
gamma value, we need to use "has_gamma" to control gamma function
inside disp_aal to adjust the gamma value.

For successors like MT8183, disp_gamma is separated from disp_aal. We
just need to control disp_gamma directly and don't need to control gamma
function inside disp_aal.

With this modification, the driver doesn't require any functional changes.
We only update the dt-binding and DTS node to make it clear.

Signed-off-by: Rex-BC Chen <rex-bc.chen@...iatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 .../devicetree/bindings/display/mediatek/mediatek,aal.yaml  | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,aal.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,aal.yaml
index cb4a2f39ff88..f118075e4a89 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,aal.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,aal.yaml
@@ -21,12 +21,12 @@ description: |
 properties:
   compatible:
     oneOf:
-      - items:
-          - const: mediatek,mt8173-disp-aal
+      - enum:
+          - mediatek,mt8173-disp-aal
+          - mediatek,mt8183-disp-aal
       - items:
           - enum:
               - mediatek,mt2712-disp-aal
-              - mediatek,mt8183-disp-aal
               - mediatek,mt8192-disp-aal
               - mediatek,mt8195-disp-aal
           - const: mediatek,mt8173-disp-aal
-- 
2.18.0