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arm64: dts: mediatek: mt8186: Add GPU speed bin NVMEM cells

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On the MT8186, the chip is binned for different GPU voltages at the
highest OPPs. The binning value is stored in the efuse.

Add the NVMEM cell, and tie it to the GPU.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230609072906.2784594-4-wenst@chromium.org
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
Chen-Yu Tsai 2023-06-09 15:29:04 +08:00 committed by Matthias Brugger
parent 8f4ed8fc51
commit 263d2fd02a
1 changed files with 7 additions and 0 deletions
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7
arch/arm64/boot/dts/mediatek/mt8186.dtsi
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@ -1519,6 +1519,11 @@ efuse: efuse@11cb0000 {
reg = <0 0x11cb0000 0 0x1000>;
#address-cells = <1>;
#size-cells = <1>;
gpu_speedbin: gpu-speed-bin@59c {
reg = <0x59c 0x4>;
bits = <0 3>;
};
};
mipi_tx0: dsi-phy@11cc0000 {
@ -1551,6 +1556,8 @@ gpu: gpu@13040000 {
<&spm MT8186_POWER_DOMAIN_MFG3>;
power-domain-names = "core0", "core1";
#cooling-cells = <2>;
nvmem-cells = <&gpu_speedbin>;
nvmem-cell-names = "speed-bin";
status = "disabled";
};