diff options
| author | Roger Quadros <rogerq@ti.com> | 2013-06-18 16:04:45 +0400 |
|---|---|---|
| committer | Andrey Konovalov <andrey.konovalov@linaro.org> | 2013-06-20 20:06:03 +0400 |
| commit | 260b9d68afb5e16989b10c7b98158d07729f155f (patch) | |
| tree | 85373210160bb6a3c977d74eff888a9fb0e3b9d7 | |
| parent | 87bc94d14ab851a0116346aa19dccdbda9ba5758 (diff) | |
| download | linux-linaro-tracking-260b9d68afb5e16989b10c7b98158d07729f155f.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>
| -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 6f93d9789705..3fb252bd7f10 100644 --- a/arch/arm/boot/dts/omap4-panda-common.dtsi +++ b/arch/arm/boot/dts/omap4-panda-common.dtsi @@ -75,6 +75,13 @@ 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 */ |