ARM64: dts: meson-gxl-s905x-libretech-cc: enable the USB controller

BugLink: http://bugs.launchpad.net/bugs/1794889
[ Upstream commit b83687f359d9b4128073f06ab7a06489eb04aa7c ]

The LibreTech CC ("Le Potato") board provides four USB connectors.
These are provided by a hub which is connected to the SoC's USB
controller.
Enable the SoC's USB controller to make the USB ports usable. Also turn
on the HDMI_5V regulator when powering on the PHY because (even though
it's not shown in the schematics) HDMI_5V also supplies the USB VBUS.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
index dc9c3b8216c2b563b3297875c763d32e38654ff5..05f7096e7c76cd6d08f5ac1b4a95485b366a2f7e 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
@@ -259,3 +259,15 @@
        pinctrl-0 = <&uart_ao_a_pins>;
        pinctrl-names = "default";
 };
+
+&usb0 {
+       status = "okay";
+};
+
+&usb2_phy0 {
+       /*
+        * even though the schematics don't show it:
+        * HDMI_5V is also used as supply for the USB VBUS.
+        */
+       phy-supply = <&hdmi_5v>;
+};