drm/radeon/kms/atom: fix duallink on some early DCE3.2 cards
[linux-2.6.git] / drivers / gpu / drm / radeon / radeon_encoders.c
index f55b64c..012f802 100644 (file)
@@ -1431,7 +1431,11 @@ radeon_atom_encoder_dpms(struct drm_encoder *encoder, int mode)
        if (is_dig) {
                switch (mode) {
                case DRM_MODE_DPMS_ON:
-                       atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0);
+                       /* some early dce3.2 boards have a bug in their transmitter control table */
+                       if ((rdev->family == CHIP_RV710) || (rdev->family == CHIP_RV730))
+                               atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0);
+                       else
+                               atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0);
                        if (atombios_get_encoder_mode(encoder) == ATOM_ENCODER_MODE_DP) {
                                struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);