From: Hans de Goede <hdegoede@redhat.com>
Date: Fri, 31 Jul 2015 12:53:38 +0000 (+0200)
Subject: ARM: dts: sun8i: Enable USB DRC on Ippo Q8H-A33 tablet
X-Git-Tag: MMI-PSA29.97-13-9~9490^2~24^2~3
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=361a4069727b1f43583314470e877e1187b35505;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

ARM: dts: sun8i: Enable USB DRC on Ippo Q8H-A33 tablet

Enable the otg/drc usb controller on the Ippo Q8H-A33 tablet, for now it
is enabled in host-only mode, because true OTG support requires support
for detecting and enabling Vbus through the axp221 pmic.

For this to work the Vbus on the port must be enabled by u-boot,
or a powered hub must be used.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---

diff --git a/arch/arm/boot/dts/sun8i-a33-ippo-q8h-v1.2.dts b/arch/arm/boot/dts/sun8i-a33-ippo-q8h-v1.2.dts
index 8bb75ee736a9..a43897515fb6 100644
--- a/arch/arm/boot/dts/sun8i-a33-ippo-q8h-v1.2.dts
+++ b/arch/arm/boot/dts/sun8i-a33-ippo-q8h-v1.2.dts
@@ -116,3 +116,18 @@
 	pinctrl-0 = <&r_uart_pins_a>;
 	status = "okay";
 };
+
+/*
+ * FIXME for now we only support host mode and rely on u-boot to have
+ * turned on Vbus which is controlled by the axp223 pmic on the board.
+ *
+ * Once we have axp223 support we should switch to fully supporting otg.
+ */
+&usb_otg {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&usbphy {
+	status = "okay";
+};