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| author | Chen-Yu Tsai <wenst@chromium.org> | 2026-05-05 13:14:03 +0300 |
|---|---|---|
| committer | AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> | 2026-05-11 14:57:25 +0300 |
| commit | 66e5674f0e048d0f192afd2be36725e0bf084d90 (patch) | |
| tree | 3033eee0b9eabcd5d1130635b148d61b186306d0 | |
| parent | 76c8b915988f699a68e59698bf92e571de1e3c9b (diff) | |
| download | linux-66e5674f0e048d0f192afd2be36725e0bf084d90.tar.xz | |
arm64: dts: mediatek: mt8195-cherry: Add supply for SPI NOR flash
The SPI NOR flash is powered by a separate "always on" 1.8V LDO
regulated power rail. This rail is fed from the system 3.3V rail.
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
| -rw-r--r-- | arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi index dc1ba143ccf2..62e2d7616f20 100644 --- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi @@ -47,6 +47,17 @@ reg = <0 0x40000000 0 0x80000000>; }; + /* system critical LDO 1.8V power rail */ + pp1800_ldo_z2: regulator-pp1800-ldo-z2 { + compatible = "regulator-fixed"; + regulator-name = "pp1800_ldo_z2"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + vin-supply = <&pp3300_z2>; + }; + pp3300_disp_x: regulator-pp3300-disp-x { compatible = "regulator-fixed"; regulator-name = "pp3300_disp_x"; @@ -762,6 +773,7 @@ spi-max-frequency = <52000000>; spi-rx-bus-width = <2>; spi-tx-bus-width = <2>; + vcc-supply = <&pp1800_ldo_z2>; }; }; |