drm/ast: Gen1: Fix open-coded register access

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Replace all open-coded access to MCR registers in Gen1 with the
appropriate calls to ast_moutdwm() and ast_mindwm(). Use MCR register
constants.

For the poll loop on MCR100, add ast_moutdwm_poll(). The helper polls
the register until it has been updated to the given value. Relax the
CPU while busy-waiting.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-11-tzimmermann@suse.de

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This commit is contained in:

Thomas Zimmermann 2026-03-27 14:33:02 +01:00

parent 5e9ced3d6c

commit d467bcab7b

4 changed files with 22 additions and 11 deletions

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18

drivers/gpu/drm/ast/ast_2000.c

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12

drivers/gpu/drm/ast/ast_drv.c

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1

drivers/gpu/drm/ast/ast_drv.h

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2

drivers/gpu/drm/ast/ast_reg.h

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