linux-kernel - [PATCH 1/2] dt-bindings: display: meson-dw-hdmi: add missing power-domain

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Date: Tue, 25 Jun 2024 16:50:14 +0200
From: Jerome Brunet <jbrunet@...libre.com>
To: Neil Armstrong <neil.armstrong@...aro.org>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Daniel Vetter <daniel@...ll.ch>
Cc: Jerome Brunet <jbrunet@...libre.com>,
	Kevin Hilman <khilman@...libre.com>,
	linux-amlogic@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH 1/2] dt-bindings: display: meson-dw-hdmi: add missing power-domain

All Amlogic instances of the Synopsys HDMI controller need a power domain
enabled. This is currently missing because the Amlogic HDMI driver directly
pokes the power domain controller registers, which it should not do.

Instead The HDMI controller should use the power controller.
Fix the bindings accordingly.

Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
---
 .../devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml   | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml b/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
index 0c85894648d8..84d68b8cfccc 100644
--- a/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
@@ -71,6 +71,10 @@ properties:
       - const: iahb
       - const: venci
 
+  power-domains:
+    maxItems: 1
+    description: phandle to the associated power domain
+
   resets:
     minItems: 3
 
@@ -129,6 +133,7 @@ examples:
         reset-names = "hdmitx_apb", "hdmitx", "hdmitx_phy";
         clocks = <&clk_isfr>, <&clk_iahb>, <&clk_venci>;
         clock-names = "isfr", "iahb", "venci";
+        power-domains = <&pd_vpu>;
         #address-cells = <1>;
         #size-cells = <0>;
 
-- 
2.43.0