drm/radeon/kms: fix LVDS setup on r4xx

R4xx mobility chips use atombios, which does not store
the LVDS_GEN_CNTL parameter setup like combios.  Rather,
it's configured in LVDSEncoderControl.  As such,
LVDS_GEN_CNTL is set wrong when on resume.  Call
LVDSEncoderControl to set it properly.

Should fix fdo bug 25336

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 5c25930d9bcf..135693d5437e 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -385,6 +385,7 @@ struct drm_encoder *radeon_encoder_legacy_tv_dac_add(struct drm_device *dev, int
 struct drm_encoder *radeon_encoder_legacy_tmds_int_add(struct drm_device *dev, int bios_index);
 struct drm_encoder *radeon_encoder_legacy_tmds_ext_add(struct drm_device *dev, int bios_index);
 extern void atombios_external_tmds_setup(struct drm_encoder *encoder, int action);
+extern void atombios_digital_setup(struct drm_encoder *encoder, int action);
 extern int atombios_get_encoder_mode(struct drm_encoder *encoder);
 extern void radeon_encoder_set_active_device(struct drm_encoder *encoder);