Re: [PATCH 2/2] drm/bridge: ti-sn65dsi83: Fix problem with premature PLL locking

[Gary Bisson]

Hi Esben and Luca,

On Wed, Jul 15, 2026 at 10:52:18AM +0200, Luca Ceresoli wrote:
> On Sat, 11 Jul 2026 13:51:15 +0200, Esben Haabendal <esben@xxxxxxxxxx> wrote:
> 
> Hi Esben,
> 
> +Cc Gary
> 
> > [...]
> > 
> > This is the same issue as addressed in the patch by Gary Bisson [1],
> > but changing the ti-sn65dsi83 driver instead, so we don't have to change
> > all other drivers that could potentially be used with this chip.
> > 
> > [1] https://lore.kernel.org/all/20260120-mtkdsi-v1-1-b0f4094f3ac3@xxxxxxxxx/
> 
> AFAICU your patch would replace Gary's one. Also Gary's patch has been
> reported to introduce regressions but it hasn't been reverted yet. Can you
> reply to that thread mentioning your patch, so everybody in the discussion
> is aware of your alternative proposal?

Thanks for including me. I just tested this change and reverted my other
one (mtk_dsi) and confirm that it works on my Tungsten510 + SN65DSI83 +
tm070jdhg30 panel.

Tested-by: Gary Bisson <bisson.gary@xxxxxxxxx>

Note that the sn65dsi83 driver wasn't changed as I thought the PLL lock
in pre-enable was on purpose. It was introduced by Frieder with this
commit. Adding him to the thread to weigh in.
dd9e329af723 drm/bridge: ti-sn65dsi83: Fix enable/disable flow to meet spec

Regards,
Gary