kernel/linux.git/drivers/gpu/drm/sysfb/drm_sysfb.c, branch v7.1-rc5

drm/sysfb: Generalize pixel-format matching

2026-02-20T13:38:23+00:00

Provide drm_sysfb_get_format(), a helper that finds a specific DRM format from a list of pixel formats. The new function builds upon drm_sysfb_get_format_si(), which finds the DRM format from a given instance of struct screen_info. Now get the screen_info's pixel format in the caller. Allows for matching pixel formats in drivers without screen_info. Convert the callers in efidrm and vesadrm to the new interface. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Acked-by: Julius Werner Link: https://patch.msgid.link/20260217155836.96267-11-tzimmermann@suse.de

drm/sysfb: Share helpers for integer validation

2025-04-14T08:16:13+00:00

Provide sysfb helpers for validating framebuffer integer values against limits. Update drivers. If a driver did not specify a limit for a certain value, use INT_MAX. v2: - declare module information near EOF (Javier) Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://lore.kernel.org/r/20250410083834.10810-3-tzimmermann@suse.de

drm/sysfb: Split source file

2025-04-14T08:16:12+00:00

Split drm_sysfb_helper.c into two source files. There's now one source file for the mode-setting pipeline and one source file for module meta data. Prepares for adding additional source code to sysfb helpers. v2: - fix typo in commit message (Javier) Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://lore.kernel.org/r/20250410083834.10810-2-tzimmermann@suse.de