On Mon 07 Jun 12:05 CDT 2021, Douglas Anderson wrote:
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@chromium.org Acked-by: Linus Walleij linus.walleij@linaro.org
In case you want to merge this together with the driver changes (even though there's no direct need for them to go together):
Acked-by: Bjorn Andersson bjorn.andersson@linaro.org
Regards, Bjorn
(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.rc1.229.g3e70b5a671-goog