Re: [PATCH 1/6] dt-bindings: tc358775: Add support for tc358765

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

Am Montag, 27. November 2023, 13:44:30 CET schrieb Michael Walle:
> Hi,
> 
> > The tc358765 is similar to tc358775 except for the stdby-gpios.
> 
> Bad timing (for me). I'm about to send a bigger patch series for the
> tc358775 which fixes the (completely) broken initialialization. And also
> contains some of your fixes.
> 
> That being said, I intend to make the standby gpio optional also for the
> tc358755, because it might just be hardwired on the board.
> 
> But second, I'm really curious if this bridge is working for you correctly
> as it is at the moment. One particular thing I've noticed is that you must
> release the reset while both the clock and the data lanes are in LP11 mode.
> Otherwise, the bridge won't work properly (i.e. horizontally shifted
> picture, or no picture at all).

Apparently this seems to be true for all Toshiba DSI bridges. The power on 
sequence for TC9595 (TC358767) also requires LP-11 before releasing the reset 
signal RESX. Additionally LP-11 is requires for using the DP AUX channel.
This also relates to the patch set from Dmitry [1].

Best regards,
Alexander

[1] https://lore.kernel.org/dri-devel/20231016165355.1327217-1-dmitry.baryshkov@xxxxxxxxxx/

> What DSI host controller are you using?
> 
> -michael


-- 
TQ-Systems GmbH | Mühlstraße 2, Gut Delling | 82229 Seefeld, Germany
Amtsgericht München, HRB 105018
Geschäftsführer: Detlef Schneider, Rüdiger Stahl, Stefan Schneider
http://www.tq-group.com/






[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux