On Thu, Jun 14, 2012 at 12:18 AM, Tomi Valkeinen <tomi.valkeinen@xxxxxx> wrote:
> On Wed, 2012-06-13 at 23:58 -0700, Russ Dill wrote:
>> On Wed, Jun 13, 2012 at 2:20 AM, Tomi Valkeinen <tomi.valkeinen@xxxxxx> wrote:
>> > Commit e813a55eb9c9bc6c8039fb16332cf43402125b30 ("OMAP: board-files:
>> > remove custom PD GPIO handling for DVI output") moved TFP410 chip's
>> > powerdown-gpio handling from the board files to the tfp410 driver. One
>> > gpio_request_one(powerdown-gpio, ...) was mistakenly left unremoved in
>> > the Beagle board file. This causes the tfp410 driver to fail to request
>> > the gpio on Beagle, causing the driver to fail and thus the DVI output
>> > doesn't work.
>>
>> Can you take the one I sent earlier instead?
>>
>> http://www.spinics.net/lists/linux-omap/msg69913.html
>
> Hmm, that probably doesn't apply. The power-down GPIO is now handled in
> the tfp410 driver, not in the board files.
Give me a branch to rebase it onto and I will.
> Looking more closely at the board file, what are these nDVI_PWR_EN,
> DVI_LDO_EN and DVI_PU gpios? There's no "enable line" on tfp410. Only
> the power-down gpio, which is none of the above...
On my schematic, DVI_LDO_EN is labeled more sanely, DVI_PU. I'm not
sure of the history of that. My patch does remove any reference to
DVI_LDO_EN.
nDVI_PWR_EN is labeled AUX_3V3_DIS on my schematic. AUX_3V3_DIS is
connected to the disable pin of an LDO that provides power for the DVI
transceiver.
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