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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
21 lines
444 B
C
21 lines
444 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef VIDEO_CMDLINE_H
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#define VIDEO_CMDLINE_H
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#include <linux/types.h>
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#if defined(CONFIG_VIDEO_CMDLINE)
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const char *video_get_options(const char *name);
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/* exported for compatibility with fbdev; don't use in new code */
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bool __video_get_options(const char *name, const char **option, bool is_of);
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#else
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static inline const char *video_get_options(const char *name)
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{
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return NULL;
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}
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#endif
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#endif
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