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arm64: dts: allwinner: h6: tanix-tx6: Add PIO power supplies

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While there is no publicly available schematic of this board, it's not
hard to determine voltage of GPIO port C, D and G (only ones which can
be set).

Port C and G are used for MMC/SDIO communication, so they use 1.8 V
power supply. It's not clear if port D is even used, but if it is, it's
pretty safe to assume it uses 3.3 V power supply. Value read from PIO
Group Withstand Voltage Mode Select register from within pre-installed
Android agrees with that assesment.

Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210722161220.51181-3-jernej.skrabec@gmail.com
This commit is contained in:
Jernej Skrabec 2021-07-22 18:12:19 +02:00 committed by Maxime Ripard
parent 7ab1f65397
commit 35f2f8b802
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GPG Key ID: E3EF0D6F671851C5
1 changed files with 13 additions and 0 deletions
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13
arch/arm64/boot/dts/allwinner/sun50i-h6-tanix-tx6.dts
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@ -32,6 +32,13 @@
};
};
reg_vcc1v8: regulator-vcc1v8 {
compatible = "regulator-fixed";
regulator-name = "vcc1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
reg_vcc3v3: regulator-vcc3v3 {
compatible = "regulator-fixed";
regulator-name = "vcc3v3";
@ -99,6 +106,12 @@
status = "okay";
};
&pio {
vcc-pc-supply = <&reg_vcc1v8>;
vcc-pd-supply = <&reg_vcc3v3>;
vcc-pg-supply = <&reg_vcc1v8>;
};
&r_ir {
linux,rc-map-name = "rc-tanix-tx5max";
status = "okay";