[v4,16/30] drm/modes: Switch to named mode descriptors

Commit Message

Maxime Ripard Sept. 29, 2022, 4:31 p.m. UTC

The current named mode parsing relies only 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.

Signed-off-by: Maxime Ripard <[e-mail]>
---
 drivers/gpu/drm/drm_modes.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

Patch

diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 2f020ef2ddf2..7ed3fb839db7 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -2224,9 +2224,13 @@  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,
@@ -2262,14 +2266,15 @@  static int drm_mode_parse_cmdline_named_mode(const char *name,
 	 * We're sure we're a named mode at that 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;