[PATCH] drm/bridge: sii902x: Fall back to standard modes

[Linus Walleij]

On Fri, Mar 2, 2018 at 9:07 AM, Ville Syrjälä
<ville.syrjala at linux.intel.com> wrote:
> On Thu, Mar 01, 2018 at 11:12:15PM +0100, Linus Walleij wrote:
>> On Thu, Mar 1, 2018 at 10:18 PM, Ville Syrjälä
>> <ville.syrjala at linux.intel.com> wrote:
>> > On Thu, Mar 01, 2018 at 10:02:55PM +0100, Linus Walleij wrote:
>> >> Hm, hard to get review feedback on this one.
>> >>
>> >> It gives me proper video on an ARM Versatile Express utilizing the
>> >> bridge driver with a plugged in DVI-to-VGA dongle with the new
>> >> PL111 DRI driver.
>> >>
>> >> Liviu? Pawel?
>> >>
>> >> Some ACK is fine to know I am doing the right thing :)
>> >
>> > Why isn't the probe helper's noedid fallback working?
>>
>> Where is that in the call chain?
>>
>> The problem I have is that the bridge is there, it gets properly
>> initialized and used as connector and all. The only problem is
>> that the DDI I2C portion of it is not working, so no modes are
>> really added from the struct drm_connector_helper_funcs
>> .get_modes() callback.
>
> The helper is what calls .get_modes(), and it has a noedid
> fallback for mode count==0.

OK I'll debug from here and try to see what's wrong.

Yours,
Linus Walleij