[PATCH] ARM: dts: am57xx-beagle-x15: fix HDMI LS_OE GPIO

Robert Nelson robertcnelson at gmail.com
Thu Sep 1 07:12:26 PDT 2016


On Thu, Sep 1, 2016 at 9:09 AM, Nishanth Menon <nm at ti.com> wrote:
> On 09/01/2016 08:51 AM, Tomi Valkeinen wrote:
>>
>> LS_OE GPIO was changed from gpio6_28 to gpio2_30 for the Rev B1 board,
>> and the current .dts file has the old GPIO.
>>
>> Rev B1 is the earliest board supported, so we can just change the .dts.
>>
>> This fixes "omapdss error: HDMI I2C Master Error" which causes failure
>> to read EDID from the monitor.
>>
>> Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ti.com>
>> ---
>>  arch/arm/boot/dts/am57xx-beagle-x15.dts | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts
>> b/arch/arm/boot/dts/am57xx-beagle-x15.dts
>> index c4d04c5293b9..07603d9e2da7 100644
>> --- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
>> +++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
>> @@ -120,7 +120,7 @@
>>                 pinctrl-0 = <&tpd12s015_pins>;
>>
>>                 gpios = <&gpio7 10 GPIO_ACTIVE_HIGH>,   /* gpio7_10, CT CP
>> HPD */
>> -                       <&gpio6 28 GPIO_ACTIVE_HIGH>,   /* gpio6_28, LS OE
>> */
>> +                       <&gpio2 30 GPIO_ACTIVE_HIGH>,   /* gpio2_30, LS OE
>> */
>>                         <&gpio7 12 GPIO_ACTIVE_HIGH>;   /*
>> gpio7_12/sp1_cs2, HPD */
>>
>>                 ports {
>>
>
> I believe we have A2s being shipped as well. we dont want to break A2s
> either -> I propose we refactor the dts to introduce revb1 X15.

There are at-least 200 A2's that have been shipped to end users.

http://uk.rs-online.com/web/p/processor-microcontroller-development-kits/8874764/

Regards,

-- 
Robert Nelson
https://rcn-ee.com/



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