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path: root/drivers/gpu/drm/radeon/radeon_combios.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_combios.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_combios.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 7914455c96ca..e7b19440102e 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -687,6 +687,9 @@ radeon_combios_get_tv_info(struct radeon_device *rdev)
687 uint16_t tv_info; 687 uint16_t tv_info;
688 enum radeon_tv_std tv_std = TV_STD_NTSC; 688 enum radeon_tv_std tv_std = TV_STD_NTSC;
689 689
690 if (rdev->bios == NULL)
691 return tv_std;
692
690 tv_info = combios_get_table_offset(dev, COMBIOS_TV_INFO_TABLE); 693 tv_info = combios_get_table_offset(dev, COMBIOS_TV_INFO_TABLE);
691 if (tv_info) { 694 if (tv_info) {
692 if (RBIOS8(tv_info + 6) == 'T') { 695 if (RBIOS8(tv_info + 6) == 'T') {
@@ -968,8 +971,7 @@ struct radeon_encoder_lvds *radeon_combios_get_lvds_info(struct radeon_encoder
968 lvds->native_mode.vdisplay); 971 lvds->native_mode.vdisplay);
969 972
970 lvds->panel_vcc_delay = RBIOS16(lcd_info + 0x2c); 973 lvds->panel_vcc_delay = RBIOS16(lcd_info + 0x2c);
971 if (lvds->panel_vcc_delay > 2000 || lvds->panel_vcc_delay < 0) 974 lvds->panel_vcc_delay = min_t(u16, lvds->panel_vcc_delay, 2000);
972 lvds->panel_vcc_delay = 2000;
973 975
974 lvds->panel_pwr_delay = RBIOS8(lcd_info + 0x24); 976 lvds->panel_pwr_delay = RBIOS8(lcd_info + 0x24);
975 lvds->panel_digon_delay = RBIOS16(lcd_info + 0x38) & 0xf; 977 lvds->panel_digon_delay = RBIOS16(lcd_info + 0x38) & 0xf;