drm/radeon: export max link rate calculation

We need this in the MST code later.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

2 files changed, 4 insertions, 2 deletions

diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index a014c7bfa764..3e3290c203c6 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -310,8 +310,8 @@ static int dp_get_max_dp_pix_clock(int link_rate,
 
 /***** radeon specific DP functions *****/
 
-static int radeon_dp_get_max_link_rate(struct drm_connector *connector,
-                                       u8 dpcd[DP_DPCD_SIZE])
+int radeon_dp_get_max_link_rate(struct drm_connector *connector,
+                                u8 dpcd[DP_DPCD_SIZE])
 {
         int max_link_rate;
 
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index f6a43461b76c..e66a4b4caab2 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -719,6 +719,8 @@ extern u8 radeon_dp_getsinktype(struct radeon_connector *radeon_connector);
 extern bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector);
 extern int radeon_dp_get_panel_mode(struct drm_encoder *encoder,
                                     struct drm_connector *connector);
+int radeon_dp_get_max_link_rate(struct drm_connector *connector,
+                                u8 *dpcd);
 extern void radeon_dp_set_rx_power_state(struct drm_connector *connector,
                                          u8 power_state);
 extern void radeon_dp_aux_init(struct radeon_connector *radeon_connector);