ARM: dts: omap4-droid4: Allow 300mA current for USB peripherals

Looks like we can use some USB Ethernet dongles for example if we increase
the allowed power limit.

A similar PMIC MC13783 documents maximum current limit as 300 mA in in
"Table 10-4. VBUS Regulator Main Characteristics". Since we have no
other documentation, let's use that value as the limit.

Cc: Jacopo Mondi <jacopo@jmondi.org>
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Michael Scott <hashcode0f@gmail.com>
Cc: NeKit <nekit1000@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/omap4-droid4-xt894.dts
index a40fe8d49da6469a573b43d1b0fa8e7d3ae08ada..66ad4fa7dcaaea598e518a7b5c05ffad80e4f940 100644 (file)
--- a/arch/arm/boot/dts/omap4-droid4-xt894.dts
+++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts
@@ -709,7 +709,12 @@
 &usb_otg_hs {
        interface-type = <1>;
        mode = <3>;
-       power = <50>;
+
+       /*
+        * Max 300 mA steps based on similar PMIC MC13783UG.pdf "Table 10-4.
+        * VBUS Regulator Main Characteristics". Binding uses 2 mA units.
+        */
+       power = <150>;
 };
 
 &i2c4 {