mei: extract fw status registers

Fetch FW status registers, as they are important in
in understanding of FW reset reasons

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 7 insertions, 3 deletions

diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index abc5ea053bf7..b3f70eb17934 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -74,9 +74,13 @@ int mei_reset(struct mei_device *dev)
         if (state != MEI_DEV_INITIALIZING &&
             state != MEI_DEV_DISABLED &&
             state != MEI_DEV_POWER_DOWN &&
-            state != MEI_DEV_POWER_UP)
-                dev_warn(&dev->pdev->dev, "unexpected reset: dev_state = %s\n",
-                         mei_dev_state_str(state));
+            state != MEI_DEV_POWER_UP) {
+                struct mei_fw_status fw_status;
+                mei_fw_status(dev, &fw_status);
+                dev_warn(&dev->pdev->dev,
+                        "unexpected reset: dev_state = %s " FW_STS_FMT "\n",
+                        mei_dev_state_str(state), FW_STS_PRM(fw_status));
+        }
 
         /* we're already in reset, cancel the init timer
          * if the reset was called due the hbm protocol error