From mboxrd@z Thu Jan 1 00:00:00 1970 From: khilman@baylibre.com (Kevin Hilman) Date: Tue, 01 Aug 2017 12:49:09 -0700 Subject: [PATCH] ARM64: dts: meson-gxbb: p20x: add card regulator settle times In-Reply-To: <20170801152224.15754-1-jbrunet@baylibre.com> (Jerome Brunet's message of "Tue, 1 Aug 2017 17:22:24 +0200") References: <20170801152224.15754-1-jbrunet@baylibre.com> Message-ID: <7h1sovysp6.fsf@baylibre.com> To: linus-amlogic@lists.infradead.org List-Id: linus-amlogic.lists.infradead.org Jerome Brunet 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 Applied to v4.14/dt64, Thanks, Kevin