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| author | Jerome Brunet <jbrunet@baylibre.com> | 2017-08-31 15:52:22 +0200 |
|---|---|---|
| committer | Kevin Hilman <khilman@baylibre.com> | 2017-09-05 21:05:00 +0200 |
| commit | 8a5085c420d272af04552b2d2213471247fa86f2 (patch) | |
| tree | b9a3a3bb11444cadc562b4015dfdc853b5720b7e /arch | |
| parent | ARM64: dts: meson-gxbb: nanopi-k2: add card regulator settle times (diff) | |
| download | linux-8a5085c420d272af04552b2d2213471247fa86f2.tar.xz linux-8a5085c420d272af04552b2d2213471247fa86f2.zip | |
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 <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts | 3 |
1 files changed, 3 insertions, 0 deletions
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 a014c052241e..7d252168c2fa 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 { |