[PATCH] drm/bridge: anx7625: enable DSI EOTP

[Xin Ji]

On Fri, Feb 05, 2021 at 10:43:14AM +0100, Robert Foss wrote:
> On Thu, 4 Feb 2021 at 23:25, Nicolas Boichat <drinkcat at chromium.org> wrote:
> >
> > On Thu, Feb 4, 2021 at 8:59 PM Andrzej Hajda <a.hajda at samsung.com> wrote:
> > >
> > >
> > > W dniu 04.02.2021 o 13:34, Nicolas Boichat pisze:
> > > > On Thu, Feb 4, 2021 at 8:07 PM Robert Foss <robert.foss at linaro.org> wrote:
> > > >> Hi Xin,
> > > >>
> > > >> Thanks for the patch.
> > > >>
> > > >> On Thu, 28 Jan 2021 at 12:17, Xin Ji <xji at analogixsemi.com> wrote:
> > > >>> Enable DSI EOTP feature for fixing some panel screen constance
> > > >>> shift issue.
> > > >>> Removing MIPI flag MIPI_DSI_MODE_EOT_PACKET to enable DSI EOTP.
> 
> Does "constance shift" have a typo? Should it be "constant shift"?
> 
> With that sorted out feel free to add my r-b.
> Reviewed-by: Robert Foss <robert.foss at linaro.org>
Hi Robert Foss, thanks, I'll correct it.
Thanks,
Xin
> 
> > > >> I don't think I quite understand how removing the
> > > >> MIPI_DSI_MODE_EOT_PACKET flag will cause DSI EOTP to be enabled. Could
> > > >> you extrapolate on this in the commit message?
> > > > That confused me as well, but it turns out that's how the flag is defined:
> > > > ```
> > > > /* disable EoT packets in HS mode */
> > > > #define MIPI_DSI_MODE_EOT_PACKET BIT(9)
> > > > ```
> > > > (https://protect2.fireeye.com/v1/url?k=5bd95ebd-044267fb-5bd8d5f2-0cc47a3003e8-ce9db8ea264d6901&q=1&e=900556dc-d199-4c18-9432-5c3465a98eae&u=https%3A%2F%2Felixir.bootlin.com%2Flinux%2Flatest%2Fsource%2Finclude%2Fdrm%2Fdrm_mipi_dsi.h%23L129)
> > > >
> > > > I'm almost tempted to put together a mass patch to rename all of these flags...
> > >
> > >
> > > Yes that would be good, many of these flags were just copy pasted from
> > > some hw datasheet, without good analysis how to adapt them to the framework.
> >
> > I'll look into it (but that shouldn't block this patch).
> 
> Thanks for clearing this up Nicolas & Andrzej!