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drm/radeon/kms: Get LVDS native mode details from EDID if necessary.

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Fixes RMX problems on older Apple laptops which don't have an x86 BIOS ROM.

Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Michel Dänzer
2009-09-15 17:09:27 +02:00
committed by Dave Airlie
parent f657c2a731
commit 8dfaa8a777
2 changed files with 41 additions and 5 deletions
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12
drivers/gpu/drm/radeon/radeon_combios.c
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@@ -863,8 +863,10 @@ struct radeon_encoder_lvds *radeon_combios_get_lvds_info(struct radeon_encoder
int tmp, i;
struct radeon_encoder_lvds *lvds = NULL;
if (rdev->bios == NULL)
return radeon_legacy_get_lvds_info_from_regs(rdev);
if (rdev->bios == NULL) {
lvds = radeon_legacy_get_lvds_info_from_regs(rdev);
goto out;
}
lcd_info = combios_get_table_offset(dev, COMBIOS_LCD_INFO_TABLE);
@@ -965,11 +967,13 @@ struct radeon_encoder_lvds *radeon_combios_get_lvds_info(struct radeon_encoder
lvds->native_mode.flags = 0;
}
}
encoder->native_mode = lvds->native_mode;
} else {
DRM_INFO("No panel info found in BIOS\n");
return radeon_legacy_get_lvds_info_from_regs(rdev);
lvds = radeon_legacy_get_lvds_info_from_regs(rdev);
}
out:
if (lvds)
encoder->native_mode = lvds->native_mode;
return lvds;
}