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path: root/drivers/gpu/drm/ast/ast_main.c
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Diffstat (limited to 'drivers/gpu/drm/ast/ast_main.c')
-rw-r--r--drivers/gpu/drm/ast/ast_main.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index d770d5a23c1a..067453266897 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -216,7 +216,7 @@ static int ast_detect_chip(struct drm_device *dev, bool *need_post)
}
/* Check 3rd Tx option (digital output afaik) */
- ast->tx_chip_type = AST_TX_NONE;
+ ast->tx_chip_types |= AST_TX_NONE_BIT;
/*
* VGACRA3 Enhanced Color Mode Register, check if DVO is already
@@ -229,7 +229,7 @@ static int ast_detect_chip(struct drm_device *dev, bool *need_post)
if (!*need_post) {
jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xff);
if (jreg & 0x80)
- ast->tx_chip_type = AST_TX_SIL164;
+ ast->tx_chip_types = AST_TX_SIL164_BIT;
}
if ((ast->chip == AST2300) || (ast->chip == AST2400) || (ast->chip == AST2500)) {
@@ -241,7 +241,7 @@ static int ast_detect_chip(struct drm_device *dev, bool *need_post)
jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff);
switch (jreg) {
case 0x04:
- ast->tx_chip_type = AST_TX_SIL164;
+ ast->tx_chip_types = AST_TX_SIL164_BIT;
break;
case 0x08:
ast->dp501_fw_addr = drmm_kzalloc(dev, 32*1024, GFP_KERNEL);
@@ -254,22 +254,19 @@ static int ast_detect_chip(struct drm_device *dev, bool *need_post)
}
fallthrough;
case 0x0c:
- ast->tx_chip_type = AST_TX_DP501;
+ ast->tx_chip_types = AST_TX_DP501_BIT;
}
} else if (ast->chip == AST2600)
ast_dp_launch(&ast->base, 0);
/* Print stuff for diagnostic purposes */
- switch(ast->tx_chip_type) {
- case AST_TX_SIL164:
+ if (ast->tx_chip_types & AST_TX_NONE_BIT)
+ drm_info(dev, "Using analog VGA\n");
+ if (ast->tx_chip_types & AST_TX_SIL164_BIT)
drm_info(dev, "Using Sil164 TMDS transmitter\n");
- break;
- case AST_TX_DP501:
+ if (ast->tx_chip_types & AST_TX_DP501_BIT)
drm_info(dev, "Using DP501 DisplayPort transmitter\n");
- break;
- default:
- drm_info(dev, "Analog VGA only\n");
- }
+
return 0;
}