drm/ast: Don't clear base address and offset with default values
authorThomas Zimmermann <tzimmermann@suse.de>
Thu, 7 Nov 2019 08:33:58 +0000 (09:33 +0100)
committerThomas Zimmermann <tzimmermann@suse.de>
Fri, 8 Nov 2019 10:03:01 +0000 (11:03 +0100)
commita21fdd7a4cd6952f39a2e2b0695f62c376bb28f4
tree72ab53ac386994cd647c221313c77c5b02ab645a
parent9253f830c9166bfa6cc07d5ed59e174e9d5ec6ca
drm/ast: Don't clear base address and offset with default values

The content of the base-address and offset registers are state of
the primary plane. Clearing it to default values will interfere with
plane functions for atomic mode setting.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107083404.6852-4-tzimmermann@suse.de
drivers/gpu/drm/ast/ast_mode.c