linux-kernel - [PATCH v4 02/16] dt-bindings: display/msm: hdmi: drop hpd-gpios

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Message-Id: <20250209-fd-hdmi-hpd-v4-2-6224568ed87f@linaro.org>
Date: Sun, 09 Feb 2025 07:04:46 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Rob Clark <robdclark@...il.com>, 
 Abhinav Kumar <quic_abhinavk@...cinc.com>, Sean Paul <sean@...rly.run>, 
 Marijn Suijten <marijn.suijten@...ainline.org>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, 
 Simona Vetter <simona.vetter@...ll.ch>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
 freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org
Subject: [PATCH v4 02/16] dt-bindings: display/msm: hdmi: drop hpd-gpios

Supporting simultaneous check of native HPD and the external GPIO proved
to be less stable than just native HPD. Drop the hpd-gpios from the
bindings. This is not a breaking change, since the HDMI block has been
using both GPIO _and_ internal HPD anyway. In case the native HPD
doesn't work users are urged to switch to specifying the hpd-gpios
property to the hdmi-connector device.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 Documentation/devicetree/bindings/display/msm/hdmi.yaml | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/msm/hdmi.yaml b/Documentation/devicetree/bindings/display/msm/hdmi.yaml
index 7e6f776a047a00851e3e1e27fec3dabeed5242fd..a5ff7045a14be3b8106b3edf0033a8028a684529 100644
--- a/Documentation/devicetree/bindings/display/msm/hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/msm/hdmi.yaml
@@ -62,10 +62,6 @@ properties:
   core-vcc-supply:
     description: phandle to VCC supply regulator
 
-  hpd-gpios:
-    maxItems: 1
-    description: hpd pin
-
   '#sound-dai-cells':
     const: 1
 
@@ -178,7 +174,6 @@ examples:
       clocks = <&clk 61>,
                <&clk 72>,
                <&clk 98>;
-      hpd-gpios = <&msmgpio 72 GPIO_ACTIVE_HIGH>;
       core-vdda-supply = <&pm8921_hdmi_mvs>;
       hdmi-mux-supply = <&ext_3p3v>;
       pinctrl-names = "default", "sleep";

-- 
2.39.5