diff options
| author | Roger Quadros <rogerq@ti.com> | 2013-06-18 20:04:45 +0400 |
|---|---|---|
| committer | Benoit Cousson <benoit.cousson@linaro.org> | 2013-06-20 01:59:16 +0400 |
| commit | 6f56929375be006e114fe5be09095b1ff3edfb99 (patch) | |
| tree | b77a043173af1f02f0dfdd8f1b970395daaecc9b /arch/arm/boot/dts/omap4-panda-common.dtsi | |
| parent | 5bd2100ed2a76147ddec95499214eb606b799a22 (diff) | |
| download | linux-6f56929375be006e114fe5be09095b1ff3edfb99.tar.xz | |
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.dtsi | 7 |
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 */ |