mei: recover after errors in runtime pm flow

Schedule link reset if failed to perform runtime suspend or resume.
Set active runtime pm stte on link reset
to clean runtimr pm error, if present.

Signed-off-by: Alexander Usyskin <[e-mail]>
Signed-off-by: Tomas Winkler <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/misc/mei/hw-me.c

···
 
 #include <linux/kthread.h>
 #include <linux/interrupt.h>
+#include <linux/pm_runtime.h>
 
 #include "mei_dev.h"
 #include "hbm.h"
···
 				return ret;
 		}
 	}
+
+	pm_runtime_set_active(dev->dev);
 
 	hcsr = mei_hcsr_read(dev);
 	/* H_RST may be found lit before reset is started,

drivers/misc/mei/hw-txe.c

···
 #include <linux/delay.h>
 #include <linux/kthread.h>
 #include <linux/irqreturn.h>
+#include <linux/pm_runtime.h>
 
 #include <linux/mei.h>
 
···
 		dev_err(dev->dev, "wait for aliveness failed ... bailing out\n");
 		return ret;
 	}
+
+	pm_runtime_set_active(dev->dev);
 
 	/* enable input ready interrupts:
 	 * SEC_IPC_HOST_INT_MASK.IPC_INPUT_READY_INT_MASK

drivers/misc/mei/pci-me.c

···
 
 	dev_dbg(&pdev->dev, "rpm: me: runtime suspend ret=%d\n", ret);
 
+	if (ret && ret != -EAGAIN)
+		schedule_work(&dev->reset_work);
+
 	return ret;
 }
 
···
 	mutex_unlock(&dev->device_lock);
 
 	dev_dbg(&pdev->dev, "rpm: me: runtime resume ret = %d\n", ret);
+
+	if (ret)
+		schedule_work(&dev->reset_work);
 
 	return ret;
 }

drivers/misc/mei/pci-txe.c

···
 	dev_dbg(&pdev->dev, "rpm: txe: runtime suspend ret=%d\n", ret);
 
 	mutex_unlock(&dev->device_lock);
+
+	if (ret && ret != -EAGAIN)
+		schedule_work(&dev->reset_work);
+
 	return ret;
 }
 
···
 	mutex_unlock(&dev->device_lock);
 
 	dev_dbg(&pdev->dev, "rpm: txe: runtime resume ret = %d\n", ret);
+
+	if (ret)
+		schedule_work(&dev->reset_work);
 
 	return ret;
 }