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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2022-05-11 20:31:24 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-05-16 13:43:21 +0200 |
| commit | b959eb4f5b7ea49b47e95c9047d33d1b1cf81057 (patch) | |
| tree | f5a29ba81ab6ea052c73c7bca518d92d536b5377 /drivers/gpu/drm/drm_client_modeset.c | |
| parent | drm: Always warn if user-defined modes are not supported (diff) | |
| download | linux-b959eb4f5b7ea49b47e95c9047d33d1b1cf81057.tar.xz linux-b959eb4f5b7ea49b47e95c9047d33d1b1cf81057.zip | |
drm/client: Look for command-line modes first
When picking a mode, first look for modes that have been specified
by the user on the kernel's command line. Only if that fails, use
the existing heuristic of picking a nearby mode from it's various
parameters.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220511183125.14294-3-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/drm_client_modeset.c')
| -rw-r--r-- | drivers/gpu/drm/drm_client_modeset.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c index e6346a67cd98..b777faa87f04 100644 --- a/drivers/gpu/drm/drm_client_modeset.c +++ b/drivers/gpu/drm/drm_client_modeset.c @@ -165,6 +165,17 @@ drm_connector_pick_cmdline_mode(struct drm_connector *connector) struct drm_display_mode *mode; bool prefer_non_interlace; + /* + * Find a user-defined mode. If the user gave us a valid + * mode on the kernel command line, it will show up in this + * list. + */ + + list_for_each_entry(mode, &connector->modes, head) { + if (mode->type & DRM_MODE_TYPE_USERDEF) + return mode; + } + cmdline_mode = &connector->cmdline_mode; if (cmdline_mode->specified == false) return NULL; |