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/openbmc/linux/arch/arm64/boot/dts/amlogic/ |
H A D | meson-gxbb-p20x.dtsi | 5149616e Tue Aug 01 10:22:24 CDT 2017 Jerome Brunet <jbrunet@baylibre.com> ARM64: dts: meson-gxbb: p20x: add card regulator settle times
Changing the card voltage on the p200 is not instantaneous, especially when switching from 3.3v to 1.8v.
I take at least 70ms 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: ef8d2ffedf18 ("ARM64: dts: meson-gxbb: add MMC support") Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com> 5149616e Tue Aug 01 10:22:24 CDT 2017 Jerome Brunet <jbrunet@baylibre.com> ARM64: dts: meson-gxbb: p20x: add card regulator settle times Changing the card voltage on the p200 is not instantaneous, especially when switching from 3.3v to 1.8v. I take at least 70ms 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: ef8d2ffedf18 ("ARM64: dts: meson-gxbb: add MMC support") Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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