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drm/modes: Switch to named mode descriptors

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The current named mode parsing relies only on the mode name, and doesn't
allow to specify any other parameter.

Let's convert that string list to an array of a custom structure that will
hold the name and some additional parameters in the future.

Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Tested-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
Link: https://lore.kernel.org/r/20220728-rpi-analog-tv-properties-v9-10-24b168e5bcd5@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
This commit is contained in:
Maxime Ripard 2022-11-14 14:00:29 +01:00
parent a631bf30eb
commit a7ab155397
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GPG Key ID: E3EF0D6F671851C5
1 changed files with 11 additions and 6 deletions
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17
drivers/gpu/drm/drm_modes.c
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@ -1750,9 +1750,13 @@ static int drm_mode_parse_cmdline_options(const char *str,
return 0;
}
static const char * const drm_named_modes_whitelist[] = {
"NTSC",
"PAL",
struct drm_named_mode {
const char *name;
};
static const struct drm_named_mode drm_named_modes[] = {
{ "NTSC", },
{ "PAL", },
};
static int drm_mode_parse_cmdline_named_mode(const char *name,
@ -1784,14 +1788,15 @@ static int drm_mode_parse_cmdline_named_mode(const char *name,
* We're sure we're a named mode at this point, iterate over the
* list of modes we're aware of.
*/
for (i = 0; i < ARRAY_SIZE(drm_named_modes_whitelist); i++) {
for (i = 0; i < ARRAY_SIZE(drm_named_modes); i++) {
const struct drm_named_mode *mode = &drm_named_modes[i];
int ret;
ret = str_has_prefix(name, drm_named_modes_whitelist[i]);
ret = str_has_prefix(name, mode->name);
if (ret != name_end)
continue;
strcpy(cmdline_mode->name, drm_named_modes_whitelist[i]);
strcpy(cmdline_mode->name, mode->name);
cmdline_mode->specified = true;
return 1;