From: Roger Quadros Date: Tue, 18 Jun 2013 16:04:45 +0000 (+0300) Subject: ARM: dts: omap4-panda: Fix DVI EDID reads X-Git-Tag: v3.11-rc1~151^2~4^2~1 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=6f56929375be006e114fe5be09095b1ff3edfb99;p=linux.git ARM: dts: omap4-panda: Fix DVI EDID reads On Panda the +5V supply for DVI EDID is supplied by the same regulator that poweres the USB Hub. Currently, the DSS/DVI subsystem doesn't know how to manage this regulator and so DVI EDID reads will fail if USB Hub is not enabled. As a temporary fix we keep this regulator permanently enabled on boot. This fixes the DVI EDID read problem. CC: Tomi Valkeinen Signed-off-by: Roger Quadros Signed-off-by: Benoit Cousson --- diff --git a/arch/arm/boot/dts/omap4-panda-common.dtsi b/arch/arm/boot/dts/omap4-panda-common.dtsi index 60fc62489b7a..faa95b5b242e 100644 --- a/arch/arm/boot/dts/omap4-panda-common.dtsi +++ b/arch/arm/boot/dts/omap4-panda-common.dtsi @@ -85,6 +85,13 @@ hsusb1_power: hsusb1_power_reg { gpio = <&gpio1 1 0>; /* gpio_1 */ startup-delay-us = <70000>; enable-active-high; + /* + * boot-on is required along with always-on as the + * regulator framework doesn't enable the regulator + * if boot-on is not there. + */ + regulator-always-on; + regulator-boot-on; }; /* HS USB Host PHY on PORT 1 */