[Intel-gfx] [PATCH 03/10] drm: dp helper: extract drm_dp_clock_recovery_ok

[Daniel Vetter]

radeon and intel use the exact same definition.

Signed-off-by: Daniel Vetter <daniel.vet...@ffwll.ch>
---
 drivers/gpu/drm/i915/intel_dp.c      |  4 ++--
 drivers/gpu/drm/radeon/atombios_dp.c | 25 +------------------------
 include/drm/drm_dp_helper.h          |  2 ++
 3 files changed, 5 insertions(+), 26 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index d3f4db0..5a9ab3a 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1845,7 +1845,7 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
                        break;
                }
 
-               if (intel_clock_recovery_ok(link_status, intel_dp->lane_count)) 
{
+               if (drm_dp_clock_recovery_ok(link_status, 
intel_dp->lane_count)) {
                        DRM_DEBUG_KMS("clock recovery OK\n");
                        clock_recovery = true;
                        break;
@@ -1932,7 +1932,7 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp)
                        break;
 
                /* Make sure clock is still ok */
-               if (!intel_clock_recovery_ok(link_status, 
intel_dp->lane_count)) {
+               if (!drm_dp_clock_recovery_ok(link_status, 
intel_dp->lane_count)) {
                        intel_dp_start_link_train(intel_dp);
                        cr_tries++;
                        continue;
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c 
b/drivers/gpu/drm/radeon/atombios_dp.c
index 8aa8187..75fdf34 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -294,29 +294,6 @@ static u8 dp_link_status(u8 
link_status[DP_LINK_STATUS_SIZE], int r)
        return link_status[r - DP_LANE0_1_STATUS];
 }
 
-static u8 dp_get_lane_status(u8 link_status[DP_LINK_STATUS_SIZE],
-                            int lane)
-{
-       int i = DP_LANE0_1_STATUS + (lane >> 1);
-       int s = (lane & 1) * 4;
-       u8 l = dp_link_status(link_status, i);
-       return (l >> s) & 0xf;
-}
-
-static bool dp_clock_recovery_ok(u8 link_status[DP_LINK_STATUS_SIZE],
-                                int lane_count)
-{
-       int lane;
-       u8 lane_status;
-
-       for (lane = 0; lane < lane_count; lane++) {
-               lane_status = dp_get_lane_status(link_status, lane);
-               if ((lane_status & DP_LANE_CR_DONE) == 0)
-                       return false;
-       }
-       return true;
-}
-
 static u8 dp_get_adjust_request_voltage(u8 link_status[DP_LINK_STATUS_SIZE],
                                        int lane)
 
@@ -811,7 +788,7 @@ static int radeon_dp_link_train_cr(struct 
radeon_dp_link_train_info *dp_info)
                        break;
                }
 
-               if (dp_clock_recovery_ok(dp_info->link_status, 
dp_info->dp_lane_count)) {
+               if (drm_dp_clock_recovery_ok(dp_info->link_status, 
dp_info->dp_lane_count)) {
                        clock_recovery = true;
                        break;
                }
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 9e10420..89e92c9 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -326,5 +326,7 @@ i2c_dp_aux_add_bus(struct i2c_adapter *adapter);
 #define DP_LINK_STATUS_SIZE       6
 bool drm_dp_channel_eq_ok(u8 link_status[DP_LINK_STATUS_SIZE],
                          int lane_count);
+bool drm_dp_clock_recovery_ok(u8 link_status[DP_LINK_STATUS_SIZE],
+                             int lane_count);
 
 #endif /* _DRM_DP_HELPER_H_ */
-- 
1.7.11.4

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