From: megous@megous.com
To: linux-sunxi@googlegroups.com,
"Maxime Ripard" <maxime.ripard@bootlin.com>,
"Chen-Yu Tsai" <wens@csie.org>,
"Rob Herring" <robh+dt@kernel.org>,
"Jernej Škrabec" <jernej.skrabec@gmail.com>
Cc: Ondrej Jirman <megous@megous.com>,
Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org, David Airlie <airlied@linux.ie>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
Daniel Vetter <daniel@ffwll.ch>, Rob Herring <robh@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v8 2/4] dt-bindings: display: hdmi-connector: Support DDC bus enable
Date: Tue, 6 Aug 2019 17:57:41 +0200 [thread overview]
Message-ID: <20190806155744.10263-3-megous@megous.com> (raw)
In-Reply-To: <20190806155744.10263-1-megous@megous.com>
From: Ondrej Jirman <megous@megous.com>
Some Allwinner SoC using boards (Orange Pi 3 for example) need to enable
on-board voltage shifting logic for the DDC bus using a gpio to be able
to access DDC bus. Use ddc-en-gpios property on the hdmi-connector to
model this.
Add binding documentation for optional ddc-en-gpios property.
Signed-off-by: Ondrej Jirman <megous@megous.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
.../devicetree/bindings/display/connector/hdmi-connector.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt b/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt
index 508aee461e0d..aeb07c4bd703 100644
--- a/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt
+++ b/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt
@@ -9,6 +9,7 @@ Optional properties:
- label: a symbolic name for the connector
- hpd-gpios: HPD GPIO number
- ddc-i2c-bus: phandle link to the I2C controller used for DDC EDID probing
+- ddc-en-gpios: signal to enable DDC bus
Required nodes:
- Video port for HDMI input
--
2.22.0
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next prev parent reply other threads:[~2019-08-06 15:58 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-06 15:57 [PATCH v8 0/4] Add support for Orange Pi 3 megous
2019-08-06 15:57 ` [PATCH v8 1/4] arm64: dts: allwinner: orange-pi-3: Enable ethernet megous
2019-08-12 9:17 ` [linux-sunxi] " Chen-Yu Tsai
2019-08-06 15:57 ` megous [this message]
2019-08-06 15:57 ` [PATCH v8 3/4] drm: sun4i: Add support for enabling DDC I2C bus to sun8i_dw_hdmi glue megous
2019-08-06 15:57 ` [PATCH v8 4/4] arm64: dts: allwinner: orange-pi-3: Enable HDMI output megous
2019-08-09 8:25 ` [linux-sunxi] " Code Kipper
2019-08-09 9:04 ` Ondřej Jirman
2019-08-12 7:44 ` [linux-sunxi] [PATCH v8 0/4] Add support for Orange Pi 3 Jernej Škrabec
2019-08-12 7:54 ` Chen-Yu Tsai
2019-08-12 8:14 ` Maxime Ripard
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