diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-02-09 14:55:06 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-02-20 14:56:48 +0100 |
| commit | 93604a5ade3a021fe3daf37f8d378b12cabb26b4 (patch) | |
| tree | 3c9943124d14113bac4f362f37850c5e1406c023 /include/video | |
| parent | 367221793d4796b18181021b7a39091c268bf39b (diff) | |
fbdev: Handle video= parameter in video/cmdline.c
Handle the command-line parameter video= in video/cmdline.c. Implement
the fbdev helper fb_get_options() on top. Will allows to handle the
kernel parameter in DRM without fbdev dependencies.
Note that __video_get_options() has the meaning of its return value
inverted compared to fb_get_options(). The new helper returns true if
the adapter has been enabled, and false otherwise.
There is the ofonly parameter, which disables output for non-OF-based
framebuffers. It is only for offb and looks like a workaround. The actual
purpose it not clear to me. Use 'video=off' or 'nomodeset' instead.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230209135509.7786-9-tzimmermann@suse.de
Diffstat (limited to 'include/video')
| -rw-r--r-- | include/video/cmdline.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/video/cmdline.h b/include/video/cmdline.h new file mode 100644 index 000000000000..26b80cdaef79 --- /dev/null +++ b/include/video/cmdline.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef VIDEO_CMDLINE_H +#define VIDEO_CMDLINE_H + +#include <linux/types.h> + +#if defined(CONFIG_VIDEO_CMDLINE) +const char *video_get_options(const char *name); + +/* exported for compatibility with fbdev; don't use in new code */ +bool __video_get_options(const char *name, const char **option, bool is_of); +#else +static inline const char *video_get_options(const char *name) +{ + return NULL; +} +#endif + +#endif |