Commit 6f569293 authored Jun 18, 2013 by Roger Quadros Committed by Benoit Cousson Jun 19, 2013

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 <tomi.valkeinen@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>

parent 5bd2100e

arch/arm/boot/dts/omap4-panda-common.dtsi

+7 −0

Original line number	Diff line number	Diff line
		@@ -85,6 +85,13 @@
		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 */

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