From: Douglas Anderson <dianders@chromium.org>
To: airlied@linux.ie, daniel@ffwll.ch, robh+dt@kernel.org,
narmstrong@baylibre.com, a.hajda@samsung.com,
Laurent.pinchart@ideasonboard.com, spanda@codeaurora.org
Cc: jonas@kwiboo.se, bjorn.andersson@linaro.org,
devicetree@vger.kernel.org, jeffrey.l.hugo@gmail.com,
swboyd@chromium.org, jernej.skrabec@siol.net,
linux-arm-msm@vger.kernel.org, robdclark@chromium.org,
dri-devel@lists.freedesktop.org,
Douglas Anderson <dianders@chromium.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] dt-bindings: drm/bridge: ti-sn65dsi86: Add hpd-gpios to the bindings
Date: Wed, 15 Apr 2020 08:48:40 -0700 [thread overview]
Message-ID: <20200415084758.2.Ic98f6622c60a1aa547ed85781f2c3b9d3e56b734@changeid> (raw)
In-Reply-To: <20200415084758.1.Ifcdc4ecb12742a27862744ee1e8753cb95a38a7f@changeid>
Allow people to specify to use a GPIO for hot-plug-detect. Add an
example.
NOTE: The current patch adding support for hpd-gpios to the Linux
driver for hpd-gpios only adds enough support to the driver so that
the bridge can use one of its own GPIOs. The bindings, however, are
written generically.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
---
.../bindings/display/bridge/ti,sn65dsi86.yaml | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml
index 8cacc6db33a9..554bfd003000 100644
--- a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml
@@ -60,6 +60,10 @@ properties:
const: 1
description: See ../../pwm/pwm.yaml for description of the cell formats.
+ hpd-gpios:
+ maxItems: 1
+ description: If present use the given GPIO for hot-plug-detect.
+
data-lanes:
description: See ../../media/video-interface.txt
@@ -148,7 +152,7 @@ examples:
#address-cells = <1>;
#size-cells = <0>;
- bridge@2d {
+ sn65dsi86_bridge: bridge@2d {
compatible = "ti,sn65dsi86";
reg = <0x2d>;
@@ -165,6 +169,10 @@ examples:
clocks = <&rpmhcc RPMH_LN_BB_CLK2>;
clock-names = "refclk";
+ gpio-controller;
+ #gpio-cells = <2>;
+ hpd-gpios = <&sn65dsi86_bridge 2 GPIO_ACTIVE_HIGH>;
+
ports {
#address-cells = <1>;
#size-cells = <0>;
--
2.26.0.110.g2183baf09c-goog
next prev parent reply other threads:[~2020-04-15 15:50 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-15 15:48 [PATCH 1/3] dt-bindings: drm/bridge: ti-sn65dsi86: Convert to yaml Douglas Anderson
2020-04-15 15:48 ` Douglas Anderson [this message]
2020-04-15 19:53 ` [PATCH 2/3] dt-bindings: drm/bridge: ti-sn65dsi86: Add hpd-gpios to the bindings Stephen Boyd
2020-04-15 20:32 ` Laurent Pinchart
2020-04-15 23:49 ` Doug Anderson
2020-04-16 0:54 ` Laurent Pinchart
2020-04-16 21:53 ` Doug Anderson
2020-04-17 18:08 ` Laurent Pinchart
2020-04-21 5:10 ` Doug Anderson
2020-04-15 15:48 ` [PATCH 3/3] drm/bridge: ti-sn65dsi86: Allow one of the bridge GPIOs to be HPD Douglas Anderson
2020-04-15 19:50 ` [PATCH 1/3] dt-bindings: drm/bridge: ti-sn65dsi86: Convert to yaml Stephen Boyd
2020-04-15 20:31 ` Laurent Pinchart
2020-04-21 5:07 ` Doug Anderson
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