diff options
Diffstat (limited to 'drivers/gpu/drm/ast/ast_main.c')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_main.c | 94 |
1 files changed, 5 insertions, 89 deletions
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c index 1678845274c7..8ed15563173c 100644 --- a/drivers/gpu/drm/ast/ast_main.c +++ b/drivers/gpu/drm/ast/ast_main.c @@ -95,94 +95,6 @@ static void ast_detect_widescreen(struct ast_device *ast) } } -static void ast_detect_tx_chip(struct ast_device *ast, bool need_post) -{ - static const char * const info_str[] = { - "analog VGA", - "Sil164 TMDS transmitter", - "DP501 DisplayPort transmitter", - "ASPEED DisplayPort transmitter", - }; - - struct drm_device *dev = &ast->base; - u8 vgacra3, vgacrd1; - - /* Check 3rd Tx option (digital output afaik) */ - ast->tx_chip = AST_TX_NONE; - - if (AST_GEN(ast) <= 3) { - /* - * VGACRA3 Enhanced Color Mode Register, check if DVO is already - * enabled, in that case, assume we have a SIL164 TMDS transmitter - * - * Don't make that assumption if we the chip wasn't enabled and - * is at power-on reset, otherwise we'll incorrectly "detect" a - * SIL164 when there is none. - */ - if (!need_post) { - vgacra3 = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xa3, 0xff); - if (vgacra3 & AST_IO_VGACRA3_DVO_ENABLED) - ast->tx_chip = AST_TX_SIL164; - } - } else { - /* - * On AST GEN4+, look at the configuration set by the SoC in - * the SOC scratch register #1 bits 11:8 (interestingly marked - * as "reserved" in the spec) - */ - vgacrd1 = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xd1, - AST_IO_VGACRD1_TX_TYPE_MASK); - switch (vgacrd1) { - /* - * GEN4 to GEN6 - */ - case AST_IO_VGACRD1_TX_SIL164_VBIOS: - ast->tx_chip = AST_TX_SIL164; - break; - case AST_IO_VGACRD1_TX_DP501_VBIOS: - ast->dp501_fw_addr = drmm_kzalloc(dev, 32*1024, GFP_KERNEL); - if (ast->dp501_fw_addr) { - /* backup firmware */ - if (ast_backup_fw(ast, ast->dp501_fw_addr, 32*1024)) { - drmm_kfree(dev, ast->dp501_fw_addr); - ast->dp501_fw_addr = NULL; - } - } - fallthrough; - case AST_IO_VGACRD1_TX_FW_EMBEDDED_FW: - ast->tx_chip = AST_TX_DP501; - break; - /* - * GEN7+ - */ - case AST_IO_VGACRD1_TX_ASTDP: - ast->tx_chip = AST_TX_ASTDP; - break; - /* - * Several of the listed TX chips are not explicitly supported - * by the ast driver. If these exist in real-world devices, they - * are most likely reported as VGA or SIL164 outputs. We warn here - * to get bug reports for these devices. If none come in for some - * time, we can begin to fail device probing on these values. - */ - case AST_IO_VGACRD1_TX_ITE66121_VBIOS: - drm_warn(dev, "ITE IT66121 detected, 0x%x, Gen%lu\n", - vgacrd1, AST_GEN(ast)); - break; - case AST_IO_VGACRD1_TX_CH7003_VBIOS: - drm_warn(dev, "Chrontel CH7003 detected, 0x%x, Gen%lu\n", - vgacrd1, AST_GEN(ast)); - break; - case AST_IO_VGACRD1_TX_ANX9807_VBIOS: - drm_warn(dev, "Analogix ANX9807 detected, 0x%x, Gen%lu\n", - vgacrd1, AST_GEN(ast)); - break; - } - } - - drm_info(dev, "Using %s\n", info_str[ast->tx_chip]); -} - struct drm_device *ast_device_create(struct pci_dev *pdev, const struct drm_driver *drv, enum ast_chip chip, @@ -205,7 +117,11 @@ struct drm_device *ast_device_create(struct pci_dev *pdev, ast->regs = regs; ast->ioregs = ioregs; - ast_detect_tx_chip(ast, need_post); + if (AST_GEN(ast) >= 4) + ast_2300_detect_tx_chip(ast); + else + ast_2000_detect_tx_chip(ast, need_post); + switch (ast->tx_chip) { case AST_TX_ASTDP: ret = ast_post_gpu(ast); |