kernel.git/drivers/gpu/drm/ast/ast_2200.c, branch linux-rolling-stable

drm/ast: Store CRTC memory request threshold in device quirks

2025-10-15T07:59:43Z

Store each hardware's CRTC memory threshold in the specific instance of struct ast_device_quirks. Removes the calls to IS_AST_GENn() from ast_set_crtthd_reg(). The values stored in the registers appear to be plain limits. Hence write them in the driver in decimal format instead of hexadecimal. Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Link: https://lore.kernel.org/r/20251007150343.273718-4-tzimmermann@suse.de

drm/ast: Support device quirks

2025-10-15T07:59:41Z

Define struct ast_device_quirks and add an instance for each hardware generation. The type will provide information about per-gen constants and oddities. Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe > Link: https://lore.kernel.org/r/20251007150343.273718-3-tzimmermann@suse.de

drm/ast: Store DRAM clock table in struct ast_device

2025-10-15T07:59:40Z

Init the new field dclk_table in struct ast_device to the per-gen table of DRAM clock parameters. Use the field during modesetting. The table is static, so a setup is only required once. Removes the call to IS_AST_GEN() from the atomic commit's code path. Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Link: https://lore.kernel.org/r/20251007150343.273718-2-tzimmermann@suse.de

drm/ast: Move Gen3 device initialization into separate helper

2025-09-29T11:28:12Z

Split off device initialization for Gen3 hardware into the helpers ast_2200_device_create() and ast_2200_detect_wide_screen(). The new functions are duplicates of their counterparts in ast_main.c, but stripped from most non-Gen3 support. Simplifies maintenance as the driver's number of supported hardware generations grows. v2: - simplify widescreen-detection logic Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Link: https://lore.kernel.org/r/20250922083708.45564-8-tzimmermann@suse.de