diff options
| author | Takashi Iwai <tiwai@suse.de> | 2023-06-26 15:23:15 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2023-06-26 15:23:23 +0200 |
| commit | a15b51375684c2bfa6017bb185139477e7a3b96c (patch) | |
| tree | 6a4d7b4e7f09b858782cf2e5c0601d9f778cab15 /drivers/gpu/drm/ast/ast_main.c | |
| parent | e94f1f96f108ba96c0ed8bf3fbdd8ee6a6703880 (diff) | |
| parent | 4e0871333661d2ec0ed3dc00a945c2160eccae77 (diff) | |
Merge branch 'for-next' into for-linus
Pull the 6.5-devel branch for upstreaming.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'drivers/gpu/drm/ast/ast_main.c')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_main.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c index 794ffd4a29c5..f32ce29edba7 100644 --- a/drivers/gpu/drm/ast/ast_main.c +++ b/drivers/gpu/drm/ast/ast_main.c @@ -425,11 +425,12 @@ struct ast_device *ast_device_create(const struct drm_driver *drv, return ERR_PTR(-EIO); /* - * If we don't have IO space at all, use MMIO now and - * assume the chip has MMIO enabled by default (rev 0x20 - * and higher). + * After AST2500, MMIO is enabled by default, and it should be adopted + * to be compatible with Arm. */ - if (!(pci_resource_flags(pdev, 2) & IORESOURCE_IO)) { + if (pdev->revision >= 0x40) { + ast->ioregs = ast->regs + AST_IO_MM_OFFSET; + } else if (!(pci_resource_flags(pdev, 2) & IORESOURCE_IO)) { drm_info(dev, "platform has no IO space, trying MMIO\n"); ast->ioregs = ast->regs + AST_IO_MM_OFFSET; } |