Commit: 6322555dbeb46c512d6be42c3829087af4e4db9d Parent: 7afe7b5969329175ac4f55a6b9c13ba4f6dc267e Refname: refs/heads/master Web: https://git.kernel.org/torvalds/c/6322555dbeb46c512d6be42c3829087af4e4db9d Author: Icenowy Zheng AuthorDate: Fri May 26 18:08:01 2023 +0800 Committer: Matthias Brugger CommitDate: Thu Jun 15 13:14:57 2023 +0200 arm64: dts: mediatek: mt8173-elm: remove panel model number in DT Currently a specific panel number is used in the Elm DTSI, which is corresponded to a 12" panel. However, according to the official Chrome OS devices document, Elm refers to Acer Chromebook R13, which, as the name specifies, uses a 13.3" panel, which comes with EDID information. As the kernel currently prioritizes the hardcoded timing parameters matched with the panel number compatible, a wrong timing will be applied to the 13.3" panel on Acer Chromebook R13, which leads to blank display. Because the Elm DTSI is shared with Hana board, and Hana corresponds to multiple devices from 11" to 14", a certain panel model number shouldn't be present, and driving the panel according to its EDID information is necessary. Signed-off-by: Icenowy Zheng Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Douglas Anderson Link: https://lore.kernel.org/r/20230526100801.16310-1-uwu@icenowy.me Signed-off-by: Matthias Brugger --- arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi index 03d1ab2ca8203..111495622cacd 100644 --- a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi @@ -287,7 +287,7 @@ aux-bus { panel: panel { - compatible = "lg,lp120up1"; + compatible = "edp-panel"; power-supply = <&panel_fixed_3v3>; backlight = <&backlight>;