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UPSTREAM: rockchip: dts: rk3399-puma: update usbhub_enable regulator 

To correctly model the usbhub_enable regulator for U-Boot, we need
to change the settings to:
 * the GPIO polarity is GPIO_ACTIVE_LOW
 * should be set to inactive (enable-active-low) when boot-on settings
   are applied
 * it can be changed at runtime (i.e. remove the always-on)

Change-Id: Ibb1762be5b791870b376d251c53ac6b41b5dbbe4
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
(cherry picked from commit f2a95131685e48bdc05c0abded74ae09701c29d7)
This commit is contained in:
Philipp Tomsich 2017-11-06 23:02:52 +01:00 committed by Kever Yang
parent f2d89a0e58
commit 6d2fed26e3
1 changed files with 1 additions and 2 deletions
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3
arch/arm/dts/rk3399-puma.dtsi
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@ -94,8 +94,7 @@
compatible = "regulator-fixed";
regulator-name = "usbhub_enable";
enable-active-low;
gpio = <&gpio4 3 GPIO_ACTIVE_HIGH>;
regulator-always-on;
gpio = <&gpio4 3 GPIO_ACTIVE_LOW>;
regulator-boot-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;