TSD: arm64: dts: rockchip: ringneck: move Video Demo adapter LED to its own device

The "leds" device contains two LEDs, one on the SoM and one on the
Haikou devkit. Those LEDs are almost guaranteed to always have the GPIO
controller associated with their GPIO probed (because they are part GPIO
controller from the SoC and enabled by default).

However, the GPIO used for controlling the led on the Video Demo adapter
is controlled by an external GPIO controller whose driver might not be
built in.

When one of the led child node of a gpio-leds device fails to find its
GPIO, all led child nodes are "unprobed" and put in the deferred probe
queue. In cases where the external GPIO controller driver is not built
in, or not probed yet, or using the Video Demo adapter DTS without the
actual HW, all LEDs will not be usable.

Instead, let's move this adapter led to its own gpio-leds device so that
it's only impacting this LED and not other ones that are known to work.

Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou-video-demo.dts b/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou-video-demo.dts
index d82f2de50911..ec7c476f13a2 100644
--- a/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou-video-demo.dts
+++ b/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou-video-demo.dts
@@ -11,7 +11,10 @@
 	model = "Theobroma Systems PX30-µQ7 SoM on Haikou devkit with Video Demo adapter";
 	compatible = "tsd,px30-ringneck-haikou-video-demo", "tsd,px30-ringneck-haikou", "rockchip,px30";
 
-	leds {
+	video-adapter-leds {
+		compatible = "gpio-leds";
+		status = "okay";
+
 		video-adapter-led {
 			label = "video-adapter-led";
 			gpios = <&pca9670 7 GPIO_ACTIVE_HIGH>;