From: Maxime Ripard <maxime@cerno.tech>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "Emma Anholt" <emma@anholt.net>,
"Neil Armstrong" <narmstrong@baylibre.com>,
"David Airlie" <airlied@linux.ie>,
"DRI Development" <dri-devel@lists.freedesktop.org>,
"Phil Elwell" <phil@raspberrypi.com>,
"Jerome Brunet" <jbrunet@baylibre.com>,
"Samuel Holland" <samuel@sholland.org>,
"Kevin Hilman" <khilman@baylibre.com>,
"Jernej Skrabec" <jernej.skrabec@gmail.com>,
"Chen-Yu Tsai" <wens@csie.org>,
linux-sunxi@lists.linux.dev,
"Martin Blumenstingl" <martin.blumenstingl@googlemail.com>,
"open list:ARM/Amlogic Meson..."
<linux-amlogic@lists.infradead.org>,
"Linux ARM" <linux-arm-kernel@lists.infradead.org>,
"Dom Cobley" <dom@raspberrypi.com>,
"Dave Stevenson" <dave.stevenson@raspberrypi.com>,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
"Mateusz Kwiatkowski" <kfyatek+publicgit@gmail.com>,
"Noralf Trønnes" <noralf@tronnes.org>,
"Thomas Zimmermann" <tzimmermann@suse.de>
Subject: Re: [PATCH v1 09/35] drm/modes: Move named modes parsing to a separate function
Date: Tue, 16 Aug 2022 15:46:24 +0200 [thread overview]
Message-ID: <20220816134624.cmb5s6i6pkdhu3qj@houat> (raw)
In-Reply-To: <CAMuHMdUiMEybnhgxgBXh1Cbv6syVe9iVU=sb17zHM72R8A2Dew@mail.gmail.com>
[-- Attachment #1: Type: text/plain, Size: 2314 bytes --]
On Fri, Aug 12, 2022 at 03:27:17PM +0200, Geert Uytterhoeven wrote:
> Hi Maxime,
>
> On Fri, Jul 29, 2022 at 6:36 PM Maxime Ripard <maxime@cerno.tech> wrote:
> > The current construction of the named mode parsing doesn't allow to extend
> > it easily. Let's move it to a separate function so we can add more
> > parameters and modes.
> >
> > Signed-off-by: Maxime Ripard <maxime@cerno.tech>
>
> Thanks for your patch, which looks similar to my "[PATCH v2 2/5]
> drm/modes: Extract drm_mode_parse_cmdline_named_mode()"
> (https://lore.kernel.org/dri-devel/1371554419ae63cb54c2a377db0c1016fcf200bb.1657788997.git.geert@linux-m68k.org
> ;-)
Indeed, I forgot about that one, sorry :/
I think I'd still prefer to have the check for refresh + named mode
outside of the function, since I see them as an "integration" issue, not
a parsing one.
It's not the named mode parsing that fails, but the fact that we both
have a valid refresh and a valid named mode.
>
> > --- a/drivers/gpu/drm/drm_modes.c
> > +++ b/drivers/gpu/drm/drm_modes.c
> > @@ -1773,6 +1773,28 @@ static const char * const drm_named_modes_whitelist[] = {
> > "PAL",
> > };
> >
> > +static bool drm_mode_parse_cmdline_named_mode(const char *name,
> > + unsigned int name_end,
> > + struct drm_cmdline_mode *cmdline_mode)
> > +{
> > + unsigned int i;
> > +
> > + for (i = 0; i < ARRAY_SIZE(drm_named_modes_whitelist); i++) {
> > + int ret;
> > +
> > + ret = str_has_prefix(name, drm_named_modes_whitelist[i]);
> > + if (ret != name_end)
> > + continue;
> > +
> > + strcpy(cmdline_mode->name, drm_named_modes_whitelist[i]);
> > + cmdline_mode->specified = true;
> > +
> > + return true;
> > + }
> > +
> > + return false;
>
> What's the point in returning a value, if it is never checked?
> Just make this function return void?
Yeah, it's something I went back and forth to between the dev, and it's
an artifact.
I'll drop that patch, take your version and move the refresh check to
drm_mode_parse_command_line_for_connector if that's alright for you?
Maxime
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next prev parent reply other threads:[~2022-08-16 13:46 UTC|newest]
Thread overview: 151+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-29 16:34 [PATCH v1 00/35] drm: Analog TV Improvements Maxime Ripard
2022-07-29 16:34 ` [PATCH v1 01/35] drm/atomic-helper: Rename drm_atomic_helper_connector_tv_reset to avoid ambiguity Maxime Ripard
2022-08-08 12:25 ` Noralf Trønnes
2022-07-29 16:34 ` [PATCH v1 02/35] drm/connector: Rename subconnector state variable Maxime Ripard
2022-08-08 12:26 ` Noralf Trønnes
2022-07-29 16:34 ` [PATCH v1 03/35] drm/atomic: Add TV subconnector property to get/set_property Maxime Ripard
2022-08-08 12:30 ` Noralf Trønnes
2022-08-15 7:35 ` Maxime Ripard
2022-08-15 10:48 ` Noralf Trønnes
2022-07-29 16:34 ` [PATCH v1 04/35] drm/modes: Introduce 480i and 576i modes Maxime Ripard
2022-08-02 13:58 ` Jani Nikula
2022-08-02 14:16 ` Thomas Zimmermann
2022-08-16 11:58 ` Maxime Ripard
2022-08-12 13:18 ` Geert Uytterhoeven
2022-08-16 13:26 ` Maxime Ripard
2022-08-16 15:00 ` Geert Uytterhoeven
2022-08-17 7:53 ` Maxime Ripard
2022-08-17 8:51 ` Geert Uytterhoeven
2022-08-17 13:14 ` Maxime Ripard
2022-08-17 14:01 ` Geert Uytterhoeven
2022-08-18 12:39 ` Maxime Ripard
2022-08-18 12:57 ` Geert Uytterhoeven
2022-08-18 13:42 ` Maxime Ripard
2022-08-18 15:34 ` Geert Uytterhoeven
2022-08-18 15:46 ` Maxime Ripard
2022-08-18 15:56 ` Geert Uytterhoeven
2022-08-24 16:42 ` Mateusz Kwiatkowski
2022-08-29 13:29 ` Maxime Ripard
2022-08-29 14:14 ` Geert Uytterhoeven
2022-08-29 14:33 ` Maxime Ripard
2022-07-29 16:34 ` [PATCH v1 05/35] drm/connector: Add TV standard property Maxime Ripard
2022-08-08 12:44 ` Noralf Trønnes
2022-08-16 8:26 ` Maxime Ripard
2022-08-16 9:42 ` Noralf Trønnes
2022-08-16 9:49 ` Maxime Ripard
2022-08-16 19:35 ` Noralf Trønnes
2022-08-17 11:46 ` Maxime Ripard
2022-08-17 13:11 ` Noralf Trønnes
2022-08-17 23:23 ` Noralf Trønnes
2022-08-18 15:01 ` Noralf Trønnes
2022-08-18 15:31 ` Maxime Ripard
2022-08-21 11:43 ` Noralf Trønnes
2022-08-26 8:21 ` Maxime Ripard
2022-08-18 15:27 ` Maxime Ripard
2022-08-12 13:25 ` Geert Uytterhoeven
2022-08-16 13:20 ` Maxime Ripard
2022-08-16 13:29 ` Geert Uytterhoeven
2022-08-16 14:11 ` Maxime Ripard
2022-08-16 14:43 ` Geert Uytterhoeven
2022-08-16 15:49 ` Maxime Ripard
2022-08-17 7:31 ` Geert Uytterhoeven
2022-08-17 7:32 ` Geert Uytterhoeven
2022-08-17 7:47 ` Maxime Ripard
2022-08-17 8:35 ` Geert Uytterhoeven
2022-08-17 11:14 ` Maxime Ripard
2022-08-17 13:05 ` Geert Uytterhoeven
2022-08-17 13:18 ` Maxime Ripard
2022-08-17 14:04 ` Geert Uytterhoeven
2022-08-18 14:54 ` Maxime Ripard
2022-08-18 15:20 ` Geert Uytterhoeven
2022-08-18 15:34 ` Maxime Ripard
2022-08-19 9:35 ` Geert Uytterhoeven
2022-08-25 13:39 ` Maxime Ripard
2022-08-20 20:12 ` Noralf Trønnes
2022-08-25 13:44 ` Maxime Ripard
2022-08-25 15:13 ` Noralf Trønnes
2022-08-29 8:28 ` Maxime Ripard
2022-07-29 16:34 ` [PATCH v1 06/35] drm/connector: Only register TV mode property if present Maxime Ripard
2022-08-08 12:49 ` Noralf Trønnes
2022-08-15 10:40 ` Maxime Ripard
2022-08-15 10:49 ` Noralf Trønnes
2022-07-29 16:34 ` [PATCH v1 07/35] drm/modes: Only consider bpp and refresh before options Maxime Ripard
2022-08-12 13:25 ` Geert Uytterhoeven
2022-08-16 12:20 ` Maxime Ripard
2022-07-29 16:34 ` [PATCH v1 08/35] drm/client: Add some tests for drm_connector_pick_cmdline_mode() Maxime Ripard
2022-08-02 10:14 ` Thomas Zimmermann
2022-08-15 8:42 ` Maxime Ripard
2022-07-29 16:34 ` [PATCH v1 09/35] drm/modes: Move named modes parsing to a separate function Maxime Ripard
2022-08-12 13:27 ` Geert Uytterhoeven
2022-08-16 13:46 ` Maxime Ripard [this message]
2022-08-16 14:44 ` Geert Uytterhoeven
2022-07-29 16:34 ` [PATCH v1 10/35] drm/modes: Switch to named mode descriptors Maxime Ripard
2022-07-29 16:34 ` [PATCH v1 11/35] drm/modes: Fill drm_cmdline mode from named modes Maxime Ripard
2022-07-29 16:34 ` [PATCH v1 12/35] drmi/modes: Properly generate a drm_display_mode from a named mode Maxime Ripard
2022-07-29 16:34 ` [PATCH v1 13/35] drm/atomic-helper: Add a TV properties reset helper Maxime Ripard
2022-07-29 16:34 ` [PATCH v1 14/35] drm/atomic-helper: Add an analog TV atomic_check implementation Maxime Ripard
2022-07-29 17:16 ` Mateusz Kwiatkowski
2022-08-15 8:30 ` Maxime Ripard
2022-07-29 16:34 ` [PATCH v1 15/35] drm/vc4: vec: Remove empty mode_fixup Maxime Ripard
2022-07-29 16:34 ` [PATCH v1 16/35] drm/vc4: vec: Convert to atomic helpers Maxime Ripard
2022-07-29 16:35 ` [PATCH v1 17/35] drm/vc4: vec: Refactor VEC TV mode setting Maxime Ripard
2022-07-29 16:35 ` [PATCH v1 18/35] drm/vc4: vec: Remove redundant atomic_mode_set Maxime Ripard
2022-07-29 16:35 ` [PATCH v1 19/35] drm/vc4: vec: Fix timings for VEC modes Maxime Ripard
2022-07-29 16:35 ` [PATCH v1 20/35] drm/vc4: vec: Switch for common modes Maxime Ripard
2022-07-29 18:12 ` Mateusz Kwiatkowski
2022-08-16 11:57 ` Maxime Ripard
2022-07-29 16:35 ` [PATCH v1 21/35] drm/vc4: vec: Fix definition of PAL-M mode Maxime Ripard
2022-07-29 16:35 ` [PATCH v1 22/35] drm/vc4: vec: Use TV Reset implementation Maxime Ripard
2022-07-30 3:03 ` kernel test robot
2022-07-29 16:35 ` [PATCH v1 23/35] drm/vc4: vec: Convert to the new TV mode property Maxime Ripard
2022-08-20 17:22 ` Noralf Trønnes
2022-08-24 15:26 ` Maxime Ripard
2022-08-25 13:14 ` Noralf Trønnes
2022-08-29 12:13 ` Maxime Ripard
2022-07-29 16:35 ` [PATCH v1 24/35] drm/vc4: vec: Add support for more analog TV standards Maxime Ripard
2022-07-29 17:55 ` Mateusz Kwiatkowski
2022-08-15 8:37 ` Maxime Ripard
2022-08-24 16:59 ` Mateusz Kwiatkowski
2022-07-29 16:35 ` [PATCH v1 25/35] drm/sun4i: tv: Remove unused mode_valid Maxime Ripard
2022-07-30 9:13 ` Jernej Škrabec
2022-07-29 16:35 ` [PATCH v1 26/35] drm/sun4i: tv: Convert to atomic hooks Maxime Ripard
2022-07-30 9:12 ` Jernej Škrabec
2022-07-29 16:35 ` [PATCH v1 27/35] drm/sun4i: tv: Merge mode_set into atomic_enable Maxime Ripard
2022-07-29 16:35 ` [PATCH v1 28/35] drm/sun4i: tv: Remove useless function Maxime Ripard
2022-07-29 16:35 ` [PATCH v1 29/35] drm/sun4i: tv: Remove useless destroy function Maxime Ripard
2022-07-30 9:14 ` Jernej Škrabec
2022-07-29 16:35 ` [PATCH v1 30/35] drm/sun4i: tv: Rename error label Maxime Ripard
2022-07-30 9:15 ` Jernej Škrabec
2022-07-29 16:35 ` [PATCH v1 31/35] drm/sun4i: tv: Add missing reset assertion Maxime Ripard
2022-07-30 9:16 ` Jernej Škrabec
2022-07-29 16:35 ` [PATCH v1 32/35] drm/sun4i: tv: Convert to the new TV mode property Maxime Ripard
2022-08-28 17:12 ` Noralf Trønnes
2022-07-29 16:35 ` [PATCH v1 33/35] drm/connector: Remove TV modes property Maxime Ripard
2022-07-29 20:06 ` kernel test robot
2022-07-29 20:16 ` kernel test robot
2022-07-29 16:35 ` [PATCH v1 34/35] drm/modes: Introduce the tv_mode property as a command-line option Maxime Ripard
2022-08-12 13:31 ` Geert Uytterhoeven
2022-08-16 13:51 ` Maxime Ripard
2022-08-20 20:18 ` Noralf Trønnes
2022-08-24 15:45 ` Maxime Ripard
2022-08-24 17:08 ` Mateusz Kwiatkowski
2022-08-25 12:41 ` Noralf Trønnes
2022-08-26 6:46 ` Maxime Ripard
2022-08-28 17:06 ` Noralf Trønnes
2022-07-29 16:35 ` [PATCH v1 35/35] drm/modes: Introduce more named modes Maxime Ripard
2022-08-21 16:16 ` Noralf Trønnes
2022-08-25 14:22 ` Maxime Ripard
2022-08-08 13:03 ` [PATCH v1 00/35] drm: Analog TV Improvements Noralf Trønnes
2022-08-21 16:33 ` Noralf Trønnes
2022-08-22 7:48 ` Maxime Ripard
2022-08-22 8:57 ` Mateusz Kwiatkowski
2022-08-25 15:55 ` Maxime Ripard
2022-08-25 16:17 ` Mateusz Kwiatkowski
2022-08-26 4:07 ` Mateusz Kwiatkowski
2022-08-26 8:39 ` Maxime Ripard
2022-08-26 14:56 ` Dom Cobley
2022-08-27 16:11 ` Noralf Trønnes
2022-08-30 21:31 ` kFYatek
2022-08-22 13:21 ` Noralf Trønnes
2022-08-25 16:21 ` Maxime Ripard
2022-08-25 19:36 ` Noralf Trønnes
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