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drm/ast: Enable VGA without ast device instance

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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
This commit is contained in:
Thomas Zimmermann
2023-11-16 10:59:24 +01:00
parent cdac0cd459
commit 73b05bb4c0
2 changed files with 19 additions and 19 deletions
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9
drivers/gpu/drm/ast/ast_reg.h
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@@ -13,8 +13,14 @@
#define AST_IO_MM_LENGTH (128)
#define AST_IO_VGAARI_W (0x40)
#define AST_IO_VGAMR_W (0x42)
#define AST_IO_VGAMR_R (0x4c)
#define AST_IO_VGAMR_IOSEL BIT(0)
#define AST_IO_VGAER (0x43)
#define AST_IO_VGAER_VGA_ENABLE BIT(0)
#define AST_IO_VGASRI (0x44)
#define AST_IO_VGADRR (0x47)
#define AST_IO_VGADWR (0x48)
@@ -22,14 +28,13 @@
#define AST_IO_VGAGRI (0x4E)
#define AST_IO_VGACRI (0x54)
#define AST_IO_VGACR80_PASSWORD (0xa8)
#define AST_IO_VGACRCB_HWC_16BPP BIT(0) /* set: ARGB4444, cleared: 2bpp palette */
#define AST_IO_VGACRCB_HWC_ENABLED BIT(1)
#define AST_IO_VGAIR1_R (0x5A)
#define AST_IO_VGAIR1_VREFRESH BIT(3)
#define AST_IO_VGAMR_R (0x4C)
/*
* Display Transmitter Type
*/