From: Jerome Brunet Date: Thu, 31 Aug 2017 13:52:22 +0000 (+0200) Subject: ARM64: dts: meson-gxl: libretech-cc: add card regulator settle times X-Git-Tag: v5.15~10289^2~1^2~4 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8a5085c420d272af04552b2d2213471247fa86f2;p=platform%2Fkernel%2Flinux-starfive.git ARM64: dts: meson-gxl: libretech-cc: add card regulator settle times Changing the card voltage on the cc is not instantaneous, especially when switching from 3.3v to 1.8v. It take at least 30ms for the regulator to go from 3.3v to 1.8v. Add margin to that to make sure we don't upset the sdcard during the voltage switch Fixes: 61ff2af9b278 ("ARM64: dts: fixup libretech cc definition") Signed-off-by: Jerome Brunet Signed-off-by: Kevin Hilman --- diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts index a014c05..7d25216 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts +++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts @@ -91,6 +91,9 @@ states = <3300000 0>, <1800000 1>; + + regulator-settling-time-up-us = <200>; + regulator-settling-time-down-us = <50000>; }; vddio_boot: regulator-vddio_boot {