47 lines
No EOL
2.1 KiB
Diff
47 lines
No EOL
2.1 KiB
Diff
Commit: 6322555dbeb46c512d6be42c3829087af4e4db9d
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Parent: 7afe7b5969329175ac4f55a6b9c13ba4f6dc267e
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Refname: refs/heads/master
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Web: https://git.kernel.org/torvalds/c/6322555dbeb46c512d6be42c3829087af4e4db9d
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Author: Icenowy Zheng <uwu@icenowy.me>
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AuthorDate: Fri May 26 18:08:01 2023 +0800
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Committer: Matthias Brugger <matthias.bgg@gmail.com>
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CommitDate: Thu Jun 15 13:14:57 2023 +0200
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arm64: dts: mediatek: mt8173-elm: remove panel model number in DT
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Currently a specific panel number is used in the Elm DTSI, which is
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corresponded to a 12" panel. However, according to the official Chrome
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OS devices document, Elm refers to Acer Chromebook R13, which, as the
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name specifies, uses a 13.3" panel, which comes with EDID information.
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As the kernel currently prioritizes the hardcoded timing parameters
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matched with the panel number compatible, a wrong timing will be applied
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to the 13.3" panel on Acer Chromebook R13, which leads to blank display.
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Because the Elm DTSI is shared with Hana board, and Hana corresponds to
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multiple devices from 11" to 14", a certain panel model number shouldn't
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be present, and driving the panel according to its EDID information is
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necessary.
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Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
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Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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Reviewed-by: Douglas Anderson <dianders@chromium.org>
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Link: https://lore.kernel.org/r/20230526100801.16310-1-uwu@icenowy.me
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Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
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---
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arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
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index 03d1ab2ca8203..111495622cacd 100644
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--- a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
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+++ b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
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@@ -287,7 +287,7 @@
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aux-bus {
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panel: panel {
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- compatible = "lg,lp120up1";
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+ compatible = "edp-panel";
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power-supply = <&panel_fixed_3v3>;
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backlight = <&backlight>;
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