From: Douglas Anderson <dianders@chromium.org>
To: linus.walleij@linaro.org, bgolaszewski@baylibre.com,
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: linux-gpio@vger.kernel.org, jonas@kwiboo.se,
robdclark@chromium.org, bjorn.andersson@linaro.org,
jeffrey.l.hugo@gmail.com, jernej.skrabec@siol.net,
dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
devicetree@vger.kernel.org, swboyd@chromium.org,
Douglas Anderson <dianders@chromium.org>,
Sam Ravnborg <sam@ravnborg.org>,
Thierry Reding <thierry.reding@gmail.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH v4 2/6] dt-bindings: display: Add hpd-gpios to panel-common bindings
Date: Thu, 30 Apr 2020 12:46:13 -0700 [thread overview]
Message-ID: <20200430124442.v4.2.I1976736b400a3b30e46efa47782248b86b3bc627@changeid> (raw)
In-Reply-To: <20200430194617.197510-1-dianders@chromium.org>
In the cases where there is no connector in a system there's no great
place to put "hpd-gpios". As per discussion [1] the best place to put
it is in the panel. Add this to the device tree bindings.
[1] https://lore.kernel.org/r/20200417180819.GE5861@pendragon.ideasonboard.com
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
Changes in v4: None
Changes in v3: None
Changes in v2:
- ("dt-bindings: display: Add hpd-gpios to panel-common...") new for v2
.../devicetree/bindings/display/panel/panel-common.yaml | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/panel/panel-common.yaml b/Documentation/devicetree/bindings/display/panel/panel-common.yaml
index ed051ba12084..e9a04a3a4f5f 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-common.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-common.yaml
@@ -96,6 +96,12 @@ properties:
(hot plug detect) signal, but the signal isn't hooked up so we should
hardcode the max delay from the panel spec when powering up the panel.
+ hpd-gpios:
+ maxItems: 1
+ description:
+ If Hot Plug Detect (HPD) is connected to a GPIO in the system rather
+ than a dedicated HPD pin the pin can be specified here.
+
# Control I/Os
# Many display panels can be controlled through pins driven by GPIOs. The nature
--
2.26.2.526.g744177e7f7-goog
WARNING: multiple messages have this Message-ID (diff)
From: Douglas Anderson <dianders@chromium.org>
To: linus.walleij@linaro.org, bgolaszewski@baylibre.com,
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: robdclark@chromium.org, devicetree@vger.kernel.org,
jernej.skrabec@siol.net, jeffrey.l.hugo@gmail.com,
linux-arm-msm@vger.kernel.org, jonas@kwiboo.se,
Douglas Anderson <dianders@chromium.org>,
dri-devel@lists.freedesktop.org, bjorn.andersson@linaro.org,
linux-gpio@vger.kernel.org,
Thierry Reding <thierry.reding@gmail.com>,
swboyd@chromium.org, Sam Ravnborg <sam@ravnborg.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH v4 2/6] dt-bindings: display: Add hpd-gpios to panel-common bindings
Date: Thu, 30 Apr 2020 12:46:13 -0700 [thread overview]
Message-ID: <20200430124442.v4.2.I1976736b400a3b30e46efa47782248b86b3bc627@changeid> (raw)
In-Reply-To: <20200430194617.197510-1-dianders@chromium.org>
In the cases where there is no connector in a system there's no great
place to put "hpd-gpios". As per discussion [1] the best place to put
it is in the panel. Add this to the device tree bindings.
[1] https://lore.kernel.org/r/20200417180819.GE5861@pendragon.ideasonboard.com
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
Changes in v4: None
Changes in v3: None
Changes in v2:
- ("dt-bindings: display: Add hpd-gpios to panel-common...") new for v2
.../devicetree/bindings/display/panel/panel-common.yaml | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/panel/panel-common.yaml b/Documentation/devicetree/bindings/display/panel/panel-common.yaml
index ed051ba12084..e9a04a3a4f5f 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-common.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-common.yaml
@@ -96,6 +96,12 @@ properties:
(hot plug detect) signal, but the signal isn't hooked up so we should
hardcode the max delay from the panel spec when powering up the panel.
+ hpd-gpios:
+ maxItems: 1
+ description:
+ If Hot Plug Detect (HPD) is connected to a GPIO in the system rather
+ than a dedicated HPD pin the pin can be specified here.
+
# Control I/Os
# Many display panels can be controlled through pins driven by GPIOs. The nature
--
2.26.2.526.g744177e7f7-goog
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next prev parent reply other threads:[~2020-04-30 19:47 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-30 19:46 [PATCH v4 0/6] drm: Prepare to use a GPIO on ti-sn65dsi86 for Hot Plug Detect Douglas Anderson
2020-04-30 19:46 ` Douglas Anderson
2020-04-30 19:46 ` [PATCH v4 1/6] drm/bridge: ti-sn65dsi86: Export bridge GPIOs to Linux Douglas Anderson
2020-04-30 19:46 ` Douglas Anderson
2020-05-07 14:39 ` Doug Anderson
2020-05-07 14:39 ` Doug Anderson
2020-05-12 12:22 ` Linus Walleij
2020-05-12 12:22 ` Linus Walleij
2020-04-30 19:46 ` Douglas Anderson [this message]
2020-04-30 19:46 ` [PATCH v4 2/6] dt-bindings: display: Add hpd-gpios to panel-common bindings Douglas Anderson
2020-05-05 21:38 ` Laurent Pinchart
2020-05-05 21:38 ` Laurent Pinchart
2020-04-30 19:46 ` [PATCH v4 3/6] drm/panel-simple: Support hpd-gpios for delaying prepare() Douglas Anderson
2020-04-30 19:46 ` Douglas Anderson
2020-04-30 19:46 ` [PATCH v4 4/6] dt-bindings: drm/bridge: ti-sn65dsi86: Convert to yaml Douglas Anderson
2020-04-30 19:46 ` Douglas Anderson
2020-05-05 21:34 ` Laurent Pinchart
2020-05-05 21:34 ` Laurent Pinchart
2020-05-05 22:21 ` Doug Anderson
2020-05-05 22:21 ` Doug Anderson
2020-05-06 21:05 ` Doug Anderson
2020-05-06 21:05 ` Doug Anderson
2020-04-30 19:46 ` [PATCH v4 5/6] dt-bindings: drm/bridge: ti-sn65dsi86: Document no-hpd Douglas Anderson
2020-04-30 19:46 ` Douglas Anderson
2020-05-05 21:37 ` Laurent Pinchart
2020-05-05 21:37 ` Laurent Pinchart
2020-04-30 19:46 ` [PATCH v4 6/6] arm64: dts: sdm845: Add "no-hpd" to sn65dsi86 on cheza Douglas Anderson
2020-04-30 19:46 ` Douglas Anderson
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