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 <diand...@chromium.org>
Acked-by: Linus Walleij <linus.wall...@linaro.org>
Acked-by: Bjorn Andersson <bjorn.anders...@linaro.org>
---

(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>;
+                                       };
+                               };
+                       };
+               };
        };
 };
 
-- 
2.32.0.272.g935e593368-goog

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