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-rw-r--r--drivers/gpu/drm/radeon/radeon_atombios.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index dd881d035f09..90dfb2b8cf03 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -1574,9 +1574,17 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct
ATOM_FAKE_EDID_PATCH_RECORD *fake_edid_record;
ATOM_PANEL_RESOLUTION_PATCH_RECORD *panel_res_record;
bool bad_record = false;
- u8 *record = (u8 *)(mode_info->atom_context->bios +
- data_offset +
- le16_to_cpu(lvds_info->info.usModePatchTableOffset));
+ u8 *record;
+
+ if ((frev == 1) && (crev < 2))
+ /* absolute */
+ record = (u8 *)(mode_info->atom_context->bios +
+ le16_to_cpu(lvds_info->info.usModePatchTableOffset));
+ else
+ /* relative */
+ record = (u8 *)(mode_info->atom_context->bios +
+ data_offset +
+ le16_to_cpu(lvds_info->info.usModePatchTableOffset));
while (*record != ATOM_RECORD_END_TYPE) {
switch (*record) {
case LCD_MODE_PATCH_RECORD_MODE_TYPE: