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@xxxxxxxxxxxx>
---
.../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
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