diff options
Diffstat (limited to 'drivers/gpu/drm/ast/ast_main.c')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_main.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c index c29cc7f19863..189d783f6e2c 100644 --- a/drivers/gpu/drm/ast/ast_main.c +++ b/drivers/gpu/drm/ast/ast_main.c @@ -99,7 +99,7 @@ static void ast_detect_config_mode(struct drm_device *dev, u32 *scu_rev) if (!(jregd0 & 0x80) || !(jregd1 & 0x10)) { /* Double check it's actually working */ data = ast_read32(ast, 0xf004); - if (data != 0xFFFFFFFF) { + if ((data != 0xFFFFFFFF) && (data != 0x00)) { /* P2A works, grab silicon revision */ ast->config_mode = ast_use_p2a; @@ -411,6 +411,7 @@ struct ast_private *ast_device_create(const struct drm_driver *drv, return ast; dev = &ast->base; + dev->pdev = pdev; pci_set_drvdata(pdev, dev); ast->regs = pcim_iomap(pdev, 1, 0); @@ -450,6 +451,14 @@ struct ast_private *ast_device_create(const struct drm_driver *drv, if (ret) return ERR_PTR(ret); + /* map reserved buffer */ + ast->dp501_fw_buf = NULL; + if (dev->vram_mm->vram_size < pci_resource_len(dev->pdev, 0)) { + ast->dp501_fw_buf = pci_iomap_range(dev->pdev, 0, dev->vram_mm->vram_size, 0); + if (!ast->dp501_fw_buf) + drm_info(dev, "failed to map reserved buffer!\n"); + } + ret = ast_mode_config_init(ast); if (ret) return ERR_PTR(ret); |