From: Hugo Osvaldo Barrera Date: Tue, 19 May 2026 09:44:39 +0000 (+0200) Subject: arm64: dts: rockchip: Fix vcc_sdio regulator max voltage on Pinebook Pro X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8545eda00fdf3d7e17933ce0f706d005b1bad42d;p=thirdparty%2Flinux.git arm64: dts: rockchip: Fix vcc_sdio regulator max voltage on Pinebook Pro The vcc_sdio regulator supports 1.8V to 3.4V output range according to its datasheet. The current DT incorrectly limits the max voltage to 3.0V. This limit causes issues issues downstream with u-boot, which refuses to apply the out-of range value, and falls back to the minimum in that range: 1.8V. This is insufficient to power the SD card, so driver initialisation fails and booting from it does not work. Set regulator-max-microvolt to 3400000 µV to match hardware capability. This matches the rk3399-orangepi for the same regulator. Signed-off-by: Hugo Osvaldo Barrera Reviewed-by: Dang Huynh Link: https://patch.msgid.link/20260519094439.7918-1-hugo@whynothugo.nl Signed-off-by: Heiko Stuebner --- diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts index b5c05928142c..f21fcdc1b49a 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts @@ -526,7 +526,7 @@ regulator-always-on; regulator-boot-on; regulator-min-microvolt = <1800000>; - regulator-max-microvolt = <3000000>; + regulator-max-microvolt = <3400000>; regulator-state-mem { regulator-on-in-suspend;