linux-kernel - Re: [PATCH] drm/panel/synaptics-r63353: Use

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Message-ID: <CAA8EJpqBy22eWZjccT5_UM2PQGjiG4ZEfrb6S_1tP1w962rd8w@mail.gmail.com>
Date: Thu, 6 Mar 2025 17:28:17 +0100
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Anusha Srivatsa <asrivats@...hat.com>
Cc: Maxime Ripard <mripard@...nel.org>, Michael Trimarchi <michael@...rulasolutions.com>, 
	Neil Armstrong <neil.armstrong@...aro.org>, Jessica Zhang <quic_jesszhan@...cinc.com>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Thomas Zimmermann <tzimmermann@...e.de>, 
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, dri-devel@...ts.freedesktop.org, 
	linux-kernel@...r.kernel.org, Tejas Vipin <tejasvipin76@...il.com>, 
	Doug Anderson <dianders@...omium.org>
Subject: Re: [PATCH] drm/panel/synaptics-r63353: Use _multi variants

On Thu, 6 Mar 2025 at 17:10, Anusha Srivatsa <asrivats@...hat.com> wrote:
>
>
>
> On Thu, Mar 6, 2025 at 4:31 AM Maxime Ripard <mripard@...nel.org> wrote:
>>
>> Hi Anusha,
>>
>> On Wed, Mar 05, 2025 at 07:01:41PM -0500, Anusha Srivatsa wrote:
>> > Move away from using deprecated API and use _multi
>> > variants if available. Use mipi_dsi_msleep()
>> > and mipi_dsi_usleep_range() instead of msleep()
>> > and usleep_range() respectively.
>> >
>> > Used Coccinelle to find the multiple occurences.
>> > SmPl patch:
>> > @rule@
>> > identifier dsi_var;
>> > identifier r;
>> > identifier func;
>> > type t;
>> > position p;
>> > expression dsi_device;
>> > expression list es;
>> > @@
>> > t func(...) {
>> > ...
>> > struct mipi_dsi_device *dsi_var = dsi_device;
>> > +struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi_var };
>> > <+...
>> > (
>> > -mipi_dsi_dcs_write_seq(dsi_var,es)@p;
>> > +mipi_dsi_dcs_write_seq_multi(&dsi_ctx,es);
>> > |
>> > -mipi_dsi_generic_write_seq(dsi_var,es)@p;
>> > +mipi_dsi_generic_write_seq_multi(&dsi_ctx,es);
>> > |
>> > -mipi_dsi_generic_write(dsi_var,es)@p;
>> > +mipi_dsi_generic_write_multi(&dsi_ctx,es);
>> > |
>> > -r = mipi_dsi_dcs_nop(dsi_var)@p;
>> > +mipi_dsi_dcs_nop_multi(&dsi_ctx);
>> > |
>> > ....rest of API
>> > ..
>> > )
>> > -if(r < 0) {
>> > -...
>> > -}
>> > ...+>
>>
>> The point of sending a single patch was to review the coccinelle script,
>> so you must put the entire script you used here.
>>
>
> I was actually thinking of sending patches per driver this time around since Tejas also seems to be looking into similar parts....Thoughts?

Have you discussed it with Tejas? What is his next target?

>> > Cc: Maxime Ripard <maxime.ripard@...tlin.com>
>>
>> That hasn't been my email address for 6 years :)
>>
> My bad. Will change this.



-- 
With best wishes
Dmitry