Product Adv Post Design Sample

@@ -930,7 +930,24 @@ void DCP_FW_NAME(iomfb_poweroff)(struct apple_dcp *dcp)
  swap_id = cookie->swap_id;
  kref_put(&cookie->refcount, release_swap_cookie);
  if (ret <= 0) {
- dcp->crashed = true;
+ /*
+ * The DCP did not acknowledge the poweroff clear swap.
+ *
+ * Do not latch ->crashed here: dcp_crtc_atomic_check() bails
+ * out on that flag, so every subsequent atomic commit for this
+ * device is rejected with -EINVAL, permanently. Nothing ever
+ * clears it, so the display stays dark until reboot.
+ *
+ * This is not a crash. The DCP keeps working afterwards: it
+ * renegotiates the link, publishes its mode list and asserts
+ * HPD. ->crashed belongs to dcp_rtk_crashed(), the RTKit crash
+ * callback, which also logs.
+ *
+ * Warn instead, so the timeout is at least visible.
+ */
+ dev_warn(dcp->dev,
+ "%s: timed out waiting for the poweroff clear swap; continuing\n",
+ __func__);
  return;
  }