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authorRoger Quadros <rogerq@ti.com>2013-06-18 19:04:45 +0300
committerBenoit Cousson <benoit.cousson@linaro.org>2013-06-19 16:59:16 -0500
commit6f56929375be006e114fe5be09095b1ff3edfb99 (patch)
treeb77a043173af1f02f0dfdd8f1b970395daaecc9b /arch/arm/boot/dts/omap4-panda-common.dtsi
parent5bd2100ed2a76147ddec95499214eb606b799a22 (diff)
downloadlinux-linaro-stable-6f56929375be006e114fe5be09095b1ff3edfb99.tar.gz
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>
Diffstat (limited to 'arch/arm/boot/dts/omap4-panda-common.dtsi')
-rw-r--r--arch/arm/boot/dts/omap4-panda-common.dtsi7
1 files changed, 7 insertions, 0 deletions
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 @@
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 */