This is a note to let you know that I've just added the patch titled ARM: dts: sun8i: r40: bananapi-m2-ultra: Fix dcdc1 regulator to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: arm-dts-sun8i-r40-bananapi-m2-ultra-fix-dcdc1-regula.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit fdcc94e7f3f1dcf3a7a928c00bb80e5b52f33899 Author: Jernej Skrabec <jernej.skrabec@xxxxxxxx> Date: Mon Aug 24 21:36:49 2020 +0200 ARM: dts: sun8i: r40: bananapi-m2-ultra: Fix dcdc1 regulator [ Upstream commit 3658a2b7f3e16c7053eb8d70657b94bb62c5a0f4 ] 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: da7ac948fa93 ("ARM: dts: sun8i: Add board dts file for Banana Pi M2 Ultra") Signed-off-by: Jernej Skrabec <jernej.skrabec@xxxxxxxx> Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx> Link: https://lore.kernel.org/r/20200824193649.978197-1-jernej.skrabec@xxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts index 42d62d1ba1dc7..ea15073f0c79c 100644 --- a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts +++ b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts @@ -223,16 +223,16 @@ ®_aldo3 { }; ®_dc1sw { - regulator-min-microvolt = <3000000>; - regulator-max-microvolt = <3000000>; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; regulator-name = "vcc-gmac-phy"; }; ®_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"; }; ®_dcdc2 {