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arm64: dts: amlogic: odroid-n2: keep SD card regulator always on 

When powering off the Odroid N2, the tflash_vdd regulator is
automatically turned off by the kernel. This is a problem
when issuing the "reboot" command while using an SD card.
The boot ROM does not power this regulator back on, blocking
the reboot process at the boot ROM stage, preventing the
SD card from being detected.

Adding the "regulator-always-on" property fixes the problem.

Signed-off-by: Xavier Ruppen <xruppen@gmail.com>
Suggested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Fixes: c35f6dc5c3 ("arm64: dts: meson: Add minimal support for Odroid-N2")
[khilman: minor subject change: s/meson/amlogic/]
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This commit is contained in:
Xavier Ruppen 2019-07-19 21:29:54 +02:00 committed by Kevin Hilman
parent 54f374d1fd
commit dc7f2cb218
1 changed files with 1 additions and 0 deletions
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arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
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@ -53,6 +53,7 @@ tflash_vdd: regulator-tflash_vdd {
gpio = <&gpio_ao GPIOAO_8 GPIO_ACTIVE_HIGH>;
enable-active-high;
regulator-always-on;
};
tf_io: gpio-regulator-tf_io {