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4 Commits

Author SHA1 Message Date
Thomas Zimmermann
66f843d670 drm/ast: Enable MMIO without ast device instance 
We'll have to enable the MMIO access for detecting the ast device
type. Make this work without an instance of the ast device.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231116100240.22975-7-tzimmermann@suse.de
 2023-11-28 16:17:08 +01:00
Thomas Zimmermann
73b05bb4c0 drm/ast: Enable VGA without ast device instance 
We'll have to enable the VGA functionality for detecting the ast
device type. Make this work without an instance of the ast device.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231116100240.22975-6-tzimmermann@suse.de
 2023-11-28 16:17:08 +01:00
Thomas Zimmermann
0ccaa3dde9 drm/ast: Rework I/O register setup 
There are three different ways of retrieving the I/O-memory ranges
for AST devices: either from PCI BAR 1, from PCI BAR 2 or from PCI
BAR 1 by 'guessing'.

Make the respective code more readable by making each case self-
contained. Also add error checking against the length of the PCI
BARs.

v2:
	* fix I/O range length to 128 bytes
	* fix length test for PCI BAR 2

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231116100240.22975-3-tzimmermann@suse.de
 2023-11-28 16:12:29 +01:00
Thomas Zimmermann
6c73f1dbd9 drm/ast: Move register constants to ast_reg.h 
Improve readability by putting all register constants into a separate
header file. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231017083653.10063-13-tzimmermann@suse.de
 2023-10-19 13:55:44 +02:00