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Groups > linux.kernel > #1701393
| From | Kevin Hilman <khilman@baylibre.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] ARM64: dts: meson-gxbb: p20x: add card regulator settle times |
| Date | 2017-08-01 21:50 +0200 |
| Message-ID | <u9LkZ-8cw-5@gated-at.bofh.it> (permalink) |
| References | <u9Hho-5Gd-23@gated-at.bofh.it> |
| Organization | BayLibre |
Jerome Brunet <jbrunet@baylibre.com> writes:
> 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>
Applied to v4.14/dt64,
Thanks,
Kevin
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[PATCH] ARM64: dts: meson-gxbb: p20x: add card regulator settle times Jerome Brunet <jbrunet@baylibre.com> - 2017-08-01 17:30 +0200 Re: [PATCH] ARM64: dts: meson-gxbb: p20x: add card regulator settle times Kevin Hilman <khilman@baylibre.com> - 2017-08-01 21:50 +0200
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