From 35f2f8b802c1a80bdbd664c7158bc76e662315a3 Mon Sep 17 00:00:00 2001 From: Jernej Skrabec Date: Thu, 22 Jul 2021 18:12:19 +0200 Subject: arm64: dts: allwinner: h6: tanix-tx6: Add PIO power supplies 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 Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20210722161220.51181-3-jernej.skrabec@gmail.com --- arch/arm64/boot/dts/allwinner/sun50i-h6-tanix-tx6.dts | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'arch/arm64/boot/dts/allwinner') diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix-tx6.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix-tx6.dts index 02641191682e..cf9721ca6370 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix-tx6.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix-tx6.dts @@ -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 = <®_vcc1v8>; + vcc-pd-supply = <®_vcc3v3>; + vcc-pg-supply = <®_vcc1v8>; +}; + &r_ir { linux,rc-map-name = "rc-tanix-tx5max"; status = "okay"; -- cgit v1.2.3