linux-kernel - [PATCH 4.16 046/279] ARM64: dts: meson-gxl-s905x-libretech-cc: enable the USB controller

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Date:   Mon, 18 Jun 2018 10:10:31 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Kevin Hilman <khilman@...libre.com>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.16 046/279] ARM64: dts: meson-gxl-s905x-libretech-cc: enable the USB controller

4.16-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Martin Blumenstingl <martin.blumenstingl@...glemail.com>

[ 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@...glemail.com>
Signed-off-by: Kevin Hilman <khilman@...libre.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts |   12 +++++++++++
 1 file changed, 12 insertions(+)

--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
@@ -271,3 +271,15 @@
 	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>;
+};