summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/ast/ast_reg.h
diff options
context:
space:
mode:
authorThomas Zimmermann <tzimmermann@suse.de>2023-11-16 10:59:25 +0100
committerThomas Zimmermann <tzimmermann@suse.de>2023-11-28 16:17:08 +0100
commit66f843d6703513b9ee8d3d10694a21931feb32c7 (patch)
treedd04d6f9227862cec6e04523a6c237197ba6714a /drivers/gpu/drm/ast/ast_reg.h
parent73b05bb4c0539d89111ed2f9c5a2eac1b577f83d (diff)
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
Diffstat (limited to 'drivers/gpu/drm/ast/ast_reg.h')
-rw-r--r--drivers/gpu/drm/ast/ast_reg.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ast/ast_reg.h b/drivers/gpu/drm/ast/ast_reg.h
index 5258a84ef3a6..62dddbf3fe56 100644
--- a/drivers/gpu/drm/ast/ast_reg.h
+++ b/drivers/gpu/drm/ast/ast_reg.h
@@ -29,6 +29,8 @@
#define AST_IO_VGACRI (0x54)
#define AST_IO_VGACR80_PASSWORD (0xa8)
+#define AST_IO_VGACRA1_VGAIO_DISABLED BIT(1)
+#define AST_IO_VGACRA1_MMIO_ENABLED BIT(2)
#define AST_IO_VGACRCB_HWC_16BPP BIT(0) /* set: ARGB4444, cleared: 2bpp palette */
#define AST_IO_VGACRCB_HWC_ENABLED BIT(1)