linux-kernel - [PATCH v2 3/7] dt-bindings: display: mediatek: add dsi reset optional property

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Message-Id: <20210714121116.v2.3.Ifec72a83f224b62f24cfc967edfe78c5d276b2e3@changeid>
Date:   Wed, 14 Jul 2021 12:11:37 +0200
From:   Enric Balletbo i Serra <enric.balletbo@...labora.com>
To:     linux-kernel@...r.kernel.org
Cc:     chunkuang.hu@...nel.org, hsinyi@...omium.org, kernel@...labora.com,
        drinkcat@...omium.org, eizan@...omium.org,
        linux-mediatek@...ts.infradead.org, matthias.bgg@...il.com,
        jitao.shi@...iatek.com, Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v2 3/7] dt-bindings: display: mediatek: add dsi reset optional property

Update device tree binding documentation for the dsi to add the optional
property to reset the dsi controller.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
---

Changes in v2:
- Added a new patch to describe the dsi reset optional property.

 .../devicetree/bindings/display/mediatek/mediatek,dsi.txt   | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
index 8238a86686be..3209b700ded6 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
@@ -19,6 +19,11 @@ Required properties:
   Documentation/devicetree/bindings/graph.txt. This port should be connected
   to the input port of an attached DSI panel or DSI-to-eDP encoder chip.
 
+Optional properties:
+- resets: list of phandle + reset specifier pair, as described in [1].
+
+[1] Documentation/devicetree/bindings/reset/reset.txt
+
 MIPI TX Configuration Module
 ============================
 
@@ -45,6 +50,7 @@ dsi0: dsi@...1b000 {
 	clocks = <&mmsys MM_DSI0_ENGINE>, <&mmsys MM_DSI0_DIGITAL>,
 		 <&mipi_tx0>;
 	clock-names = "engine", "digital", "hs";
+	resets = <&mmsys MT8173_MMSYS_SW0_RST_B_DISP_DSI0>;
 	phys = <&mipi_tx0>;
 	phy-names = "dphy";
 
-- 
2.30.2