[PATCH 5.4 002/453] ARM: dts: sun8i: r40: bananapi-m2-berry: Fix dcdc1 regulator

From: Greg Kroah-Hartman
Date: Mon Dec 28 2020 - 08:39:11 EST


From: Pablo Greco <pgreco@xxxxxxxxxxxxxxxxx>

[ Upstream commit bd5cdcdc66e1f7179ff6d172d1e5f55e43403aa8 ]

DCDC1 regulator powers many different subsystems. While some of them can
work at 3.0 V, some of them can not. For example, VCC-HDMI can only work
between 3.24 V and 3.36 V. According to OS images provided by the board
manufacturer this regulator should be set to 3.3 V.

Set DCDC1 and DCDC1SW to 3.3 V in order to fix this.

Fixes: 23edc168bd98 ("ARM: dts: sun8i: Add board dts file for Banana Pi M2 Berry")
Fixes: 27e81e1970a8 ("ARM: dts: sun8i: v40: bananapi-m2-berry: Enable GMAC ethernet controller")
Signed-off-by: Pablo Greco <pgreco@xxxxxxxxxxxxxxxxx>
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
Link: https://lore.kernel.org/r/1604326755-39742-1-git-send-email-pgreco@xxxxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts b/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts
index 15c22b06fc4b6..84eb082957183 100644
--- a/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts
+++ b/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts
@@ -198,16 +198,16 @@
};

&reg_dc1sw {
- regulator-min-microvolt = <3000000>;
- regulator-max-microvolt = <3000000>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
regulator-name = "vcc-gmac-phy";
};

&reg_dcdc1 {
regulator-always-on;
- regulator-min-microvolt = <3000000>;
- regulator-max-microvolt = <3000000>;
- regulator-name = "vcc-3v0";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-3v3";
};

&reg_dcdc2 {
--
2.27.0