drm/sysfb: Clear entire framebuffer in atomic_disable

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drm_sysfb_plane_helper_atomic_disable() previously used
plane_state->src_* coordinates to construct the clear rectangle,
which depends on user-controlled input. Instead, clear the entire
visible framebuffer region using fb_mode dimensions, and use
drm_format_info_min_pitch() to compute the safe per-line clear size
without touching non-visible bytes at the end of each line.

Signed-off-by: Shixiong Ou <oushixiong@kylinos.cn>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260826075613.483617-1-oushixiong1025@163.com

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Shixiong Ou 2026-08-26 15:56:13 +08:00 • committed by Thomas Zimmermann

parent b35be235d9

commit bd4f73ca0e

1 changed files with 7 additions and 7 deletions

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drivers/gpu/drm/sysfb/drm_sysfb_modeset.c

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