linux-kernel - Re: [PATCH v2] drm/panel : truly-nt35521: transition to mipi

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Message-ID: <CAD=FV=WJdp0btifYjGLN5_bfGSEwcEM5nPv8M7872190T3uMRA@mail.gmail.com>
Date: Tue, 11 Jun 2024 14:12:59 -0700
From: Doug Anderson <dianders@...omium.org>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: Tejas Vipin <tejasvipin76@...il.com>, neil.armstrong@...aro.org, 
	quic_jesszhan@...cinc.com, maarten.lankhorst@...ux.intel.com, 
	mripard@...nel.org, tzimmermann@...e.de, airlied@...il.com, daniel@...ll.ch, 
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] drm/panel : truly-nt35521: transition to mipi_dsi
 wrapped functions

Hi,

On Tue, Jun 11, 2024 at 2:10 PM Dmitry Baryshkov
<dmitry.baryshkov@...aro.org> wrote:
>
> On Tue, Jun 11, 2024 at 08:57:48AM -0700, Doug Anderson wrote:
> > Hi,
> >
> > On Tue, Jun 11, 2024 at 7:44 AM Tejas Vipin <tejasvipin76@...il.com> wrote:
> > >
> > > Use functions introduced in commit 966e397e4f60 ("drm/mipi-dsi: Introduce
> > > mipi_dsi_*_write_seq_multi()") and commit f79d6d28d8fe
> > > ("drm/mipi-dsi: wrap more functions for streamline handling") for the
> > > sony tulip truly nt35521 panel.
> > >
> > > Signed-off-by: Tejas Vipin <tejasvipin76@...il.com>
> > > ---
> > >
> > > Changes in v2:
> > >     - Fix patch format
> > >     - Fix code style
> > >
> > > v1: https://lore.kernel.org/all/485eef24-ddad-466a-a89f-f9f226801bb7@gmail.com/
> > >
> > > ---
> > >  .../panel/panel-sony-tulip-truly-nt35521.c    | 435 +++++++++---------
> > >  1 file changed, 209 insertions(+), 226 deletions(-)
> > >
> > > diff --git a/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c b/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c
> > > index 6d44970dccd9..5a050352c207 100644
> > > --- a/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c
> > > +++ b/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c
> > > @@ -44,248 +44,231 @@ static void truly_nt35521_reset(struct truly_nt35521 *ctx)
> > >  static int truly_nt35521_on(struct truly_nt35521 *ctx)
> > >  {
> > >         struct mipi_dsi_device *dsi = ctx->dsi;
> > > -       struct device *dev = &dsi->dev;
> > > -       int ret;
> > > +
> > > +       struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
> >
> > It's not a huge deal, but normally in the kernel all the variable
> > declarations are cuddled together. AKA no blank line between the
> > declaration of "dsi" and the declaration of "dsi_ctx". It would be
> > awesome if you could send a v3 fixing that. When you send v3, feel
> > free to add this above your own Signed-off-by:
> >
> > Reviewed-by: Douglas Anderson <dianders@...omium.org>
> >
> > ...with that, the patch will probably sit on the mailing lists for a
> > week or two and then get applied. Neil may want to apply it, but if
> > he's busy I can do it too.
> >
> > I believe you were planning on tackling some more of the panels. Since
> > you're still getting started sending patches, maybe keep it to a
> > smaller batch for now and send another 10 or so? Probably best to keep
> > it as one panel driver per patch.
> >
> > -Doug
>
> Do we want to delay this until the mipi_dsi_msleep() is fixed?

Yeah, that's a good point. I saw the mipi_dsi_msleep() problem after I
reviewed this patch, but you're right that it should be fixed first.

-Doug