lkml.org 
[lkml]   [2020]   [Mar]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v6 3/3] drm: bridge: cdns-mhdp: add j721e wrapper
From
Date
Hi Laurent,

On 11/03/2020 22:52, Laurent Pinchart wrote:

>> +void cdns_mhdp_j721e_enable(struct cdns_mhdp_device *mhdp)
>> +{
>> + /*
>> + * Eneble VIF_0 and select DPI2 as its input. DSS0 DPI0 is connected
>> + * to eDP DPI2. This is the only supported SST configuration on
>> + * J721E.
>
> Without hardware documentation I can't really comment on this, but I'd
> like to make sure it doesn't imply that the MHDP has more than one input
> and one output.

You can download the TRM for j721e here:

http://www.ti.com/lit/pdf/spruil1

MHDP has one DP output, but 4 inputs to support MST and split/dual panel modes. None of those are
supported by the drivers, but perhaps some thought should be paid to figure out if adding these
features affect the DT bindings.

Tomi

--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

\
 
 \ /
  Last update: 2020-03-12 08:03    [W:0.079 / U:0.176 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site