drm: dp helper: extract drm_dp_channel_eq_ok
radeon and intel use the exact same definition.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index d5699fe..3f46bb1 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -34,7 +34,6 @@
/* move these to drm_dp_helper.c/h */
#define DP_LINK_CONFIGURATION_SIZE 9
-#define DP_LINK_STATUS_SIZE 6
#define DP_DPCD_SIZE 8
static char *voltage_names[] = {
@@ -318,25 +317,6 @@
return true;
}
-static bool dp_channel_eq_ok(u8 link_status[DP_LINK_STATUS_SIZE],
- int lane_count)
-{
- u8 lane_align;
- u8 lane_status;
- int lane;
-
- lane_align = dp_link_status(link_status,
- DP_LANE_ALIGN_STATUS_UPDATED);
- if ((lane_align & DP_INTERLANE_ALIGN_DONE) == 0)
- return false;
- for (lane = 0; lane < lane_count; lane++) {
- lane_status = dp_get_lane_status(link_status, lane);
- if ((lane_status & DP_CHANNEL_EQ_BITS) != DP_CHANNEL_EQ_BITS)
- return false;
- }
- return true;
-}
-
static u8 dp_get_adjust_request_voltage(u8 link_status[DP_LINK_STATUS_SIZE],
int lane)
@@ -664,7 +644,7 @@
if (!radeon_dp_get_link_status(radeon_connector, link_status))
return false;
- if (dp_channel_eq_ok(link_status, dig->dp_lane_count))
+ if (drm_dp_channel_eq_ok(link_status, dig->dp_lane_count))
return false;
return true;
}
@@ -896,7 +876,7 @@
break;
}
- if (dp_channel_eq_ok(dp_info->link_status, dp_info->dp_lane_count)) {
+ if (drm_dp_channel_eq_ok(dp_info->link_status, dp_info->dp_lane_count)) {
channel_eq = true;
break;
}