Re: [PATCH v4 2/6] dt-bindings: display: Add hpd-gpios to panel-common bindings
Hi Doug,
Thank you for the patch.
On Thu, Apr 30, 2020 at 12:46:13PM -0700, Douglas Anderson wrote:
> 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.ge5...@pendragon.ideasonboard.com
>
> Signed-off-by: Douglas Anderson
> Reviewed-by: Stephen Boyd
> Reviewed-by: Linus Walleij
Reviewed-by: Laurent Pinchart
> ---
>
> 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
--
Regards,
Laurent Pinchart
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[PATCH v4 2/6] dt-bindings: display: Add hpd-gpios to panel-common bindings
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.ge5...@pendragon.ideasonboard.com
Signed-off-by: Douglas Anderson
Reviewed-by: Stephen Boyd
Reviewed-by: Linus Walleij
---
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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