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| /openbmc/linux/drivers/gpu/drm/ast/ |
| H A D | ast_mode.c | 202fb33b Thu Oct 13 06:29:23 CDT 2022 Thomas Zimmermann <tzimmermann@suse.de> drm/ast: Avoid reprogramming primary-plane scanout address
Some AST-based BMCs stop display output for up to 5 seconds after
reprogramming the scanout address. As the address is fixed, avoid
re-setting the address' value.
v2:
* only update offset if it changed (Jocelyn)
Reported-by: Jocelyn Falempe <jfalempe@redhat.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Tested-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221013112923.769-9-tzimmermann@suse.de
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