Putting the panel under the bridge chip (under the aux-bus node)
allows the panel driver to get access to the DP AUX bus, enabling all
sorts of fabulous new features.
While we're at this, get rid of a level of hierarchy for the panel
node. It doesn't need "ports / port" and can just have a "port" child.
For Linux, this patch has a hard requirement on the patches adding DP
AUX bus support to the ti-sn65dsi86 bridge chip driver. See the patch
("drm/bridge: ti-sn65dsi86: Add support for the DP AUX bus").
Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
(no changes since v7)
Changes in v7:
- Panel now under bridge chip instead of getting a link to ddc-i2c
arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 30 ++++++++++----------
1 file changed, 15 insertions(+), 15 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
index 24d293ef56d7..c76afd857b54 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
@@ -260,21 +260,6 @@ max98357a: audio-codec-0 {
#sound-dai-cells = <0>;
};
- panel: panel {
- /* Compatible will be filled in per-board */
- power-supply = <&pp3300_dx_edp>;
- backlight = <&backlight>;
- hpd-gpios = <&sn65dsi86_bridge 2 GPIO_ACTIVE_HIGH>;
-
- ports {
- port {
- panel_in_edp: endpoint {
- remote-endpoint = <&sn65dsi86_out>;
- };
- };
- };
- };
-
pwmleds {
compatible = "pwm-leds";
keyboard_backlight: keyboard-backlight {
@@ -674,6 +659,21 @@ sn65dsi86_out: endpoint {
};
};
};
+
+ aux-bus {
+ panel: panel {
+ /* Compatible will be filled in per-board */
+ power-supply = <&pp3300_dx_edp>;
+ backlight = <&backlight>;
+ hpd-gpios = <&sn65dsi86_bridge 2 GPIO_ACTIVE_HIGH>;
+
+ port {
+ panel_in_edp: endpoint {
+ remote-endpoint = <&sn65dsi86_out>;
+ };
+ };
+ };
+ };
};
};
--
2.31.1.818.g46aad6cb9e-goog
