diff options
| author | Lyude Paul <lyude@redhat.com> | 2020-04-03 14:08:32 -0400 |
|---|---|---|
| committer | Lyude Paul <lyude@redhat.com> | 2020-04-09 12:08:39 -0400 |
| commit | a5cb5fa6c3a5c2cf492db667b8670ee7b044b79f (patch) | |
| tree | 70fb24a56fe51fbf4318b86112dd8e6b3208a0c7 /drivers/gpu/drm/drm_dp_mst_topology.c | |
| parent | 17e03aa8cc16e3d43848fb459f0435372f1c5b9b (diff) | |
drm/dp_mst: Reformat drm_dp_check_act_status() a bit
Just add a bit more line wrapping, get rid of some extraneous
whitespace, remove an unneeded goto label, and move around some variable
declarations. No functional changes here.
Signed-off-by: Lyude Paul <lyude@redhat.com>
[this isn't a fix, but it's needed for the fix that comes after this]
Fixes: ad7f8a1f9ced ("drm/helper: add Displayport multi-stream helper (v0.6)")
Cc: Sean Paul <sean@poorly.run>
Cc: <stable@vger.kernel.org> # v3.17+
Reviewed-by: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20200406221253.1307209-3-lyude@redhat.com
Diffstat (limited to 'drivers/gpu/drm/drm_dp_mst_topology.c')
| -rw-r--r-- | drivers/gpu/drm/drm_dp_mst_topology.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index c6caa0d604ae..e7a5bd3e6015 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -4451,33 +4451,31 @@ fail: */ int drm_dp_check_act_status(struct drm_dp_mst_topology_mgr *mgr) { + int count = 0, ret; u8 status; - int ret; - int count = 0; do { - ret = drm_dp_dpcd_readb(mgr->aux, DP_PAYLOAD_TABLE_UPDATE_STATUS, &status); - + ret = drm_dp_dpcd_readb(mgr->aux, + DP_PAYLOAD_TABLE_UPDATE_STATUS, + &status); if (ret < 0) { - DRM_DEBUG_KMS("failed to read payload table status %d\n", ret); - goto fail; + DRM_DEBUG_KMS("failed to read payload table status %d\n", + ret); + return ret; } if (status & DP_PAYLOAD_ACT_HANDLED) break; count++; udelay(100); - } while (count < 30); if (!(status & DP_PAYLOAD_ACT_HANDLED)) { - DRM_DEBUG_KMS("failed to get ACT bit %d after %d retries\n", status, count); - ret = -EINVAL; - goto fail; + DRM_DEBUG_KMS("failed to get ACT bit %d after %d retries\n", + status, count); + return -EINVAL; } return 0; -fail: - return ret; } EXPORT_SYMBOL(drm_dp_check_act_status); |