[PATCH 5/5] drm/modes: parse_cmdline: Add support for named modes containing dashes
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: 2022-07-08 18:23:00
Also in:
dri-devel, linux-m68k, lkml
Subsystem:
drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
It is fairly common for named video modes to contain dashes (e.g. "tt-mid" on Atari, "dblntsc-ff" on Amiga). Currently such mode names are not recognized, as the dash is considered to be a separator between mode name and bpp. Fix this by skipping any dashes that are not followed immediately by a digit when looking for the separator. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> --- drivers/gpu/drm/drm_modes.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 7a00eb6df502e991..52e852518c6ad8e9 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c@@ -1828,6 +1828,8 @@ bool drm_mode_parse_command_line_for_connector(const char *mode_option, /* Try to locate the bpp and refresh specifiers, if any */ bpp_ptr = strchr(name, '-'); + while (bpp_ptr && !isdigit(bpp_ptr[1])) + bpp_ptr = strchr(bpp_ptr + 1, '-'); if (bpp_ptr) bpp_off = bpp_ptr - name;
--
2.25.1