54 lines
1.8 KiB
Diff
54 lines
1.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jernej Skrabec <jernej.skrabec@gmail.com>
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Date: Thu, 22 Jul 2021 18:12:19 +0200
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Subject: [PATCH] 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
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hard to determine voltage of GPIO port C, D and G (only ones which can
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be set).
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Port C and G are used for MMC/SDIO communication, so they use 1.8 V
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power supply. It's not clear if port D is even used, but if it is, it's
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pretty safe to assume it uses 3.3 V power supply. Value read from PIO
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Group Withstand Voltage Mode Select register from within pre-installed
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Android agrees with that assesment.
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Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
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Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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Link: https://lore.kernel.org/r/20210722161220.51181-3-jernej.skrabec@gmail.com
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---
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.../boot/dts/allwinner/sun50i-h6-tanix-tx6.dts | 13 +++++++++++++
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1 file changed, 13 insertions(+)
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diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix-tx6.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix-tx6.dts
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index 02641191682e..cf9721ca6370 100644
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--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix-tx6.dts
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+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix-tx6.dts
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@@ -32,6 +32,13 @@ hdmi_con_in: endpoint {
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};
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};
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+ reg_vcc1v8: regulator-vcc1v8 {
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+ compatible = "regulator-fixed";
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+ regulator-name = "vcc1v8";
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+ regulator-min-microvolt = <1800000>;
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+ regulator-max-microvolt = <1800000>;
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+ };
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+
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reg_vcc3v3: regulator-vcc3v3 {
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compatible = "regulator-fixed";
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regulator-name = "vcc3v3";
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@@ -99,6 +106,12 @@ &ohci3 {
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status = "okay";
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};
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+&pio {
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+ vcc-pc-supply = <®_vcc1v8>;
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+ vcc-pd-supply = <®_vcc3v3>;
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+ vcc-pg-supply = <®_vcc1v8>;
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+};
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+
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&r_ir {
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linux,rc-map-name = "rc-tanix-tx5max";
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status = "okay";
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