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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 <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Usyskin 2016-06-16 17:58:52 +03:00 committed by Greg Kroah-Hartman
parent aab3b1a34a
commit 77537ad291
4 changed files with 19 additions and 0 deletions
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3
drivers/misc/mei/hw-me.c
View File

@ -18,6 +18,7 @@
#include <linux/kthread.h>
#include <linux/interrupt.h>
#include <linux/pm_runtime.h>
#include "mei_dev.h"
#include "hbm.h"
@ -1063,6 +1064,8 @@ static int mei_me_hw_reset(struct mei_device *dev, bool intr_enable)
}
}
pm_runtime_set_active(dev->dev);
hcsr = mei_hcsr_read(dev);
/* H_RST may be found lit before reset is started,
* for example if preceding reset flow hasn't completed.

3
drivers/misc/mei/hw-txe.c
View File

@ -20,6 +20,7 @@
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/irqreturn.h>
#include <linux/pm_runtime.h>
#include <linux/mei.h>
@ -935,6 +936,8 @@ static int mei_txe_hw_start(struct mei_device *dev)
return ret;
}
pm_runtime_set_active(dev->dev);
/* enable input ready interrupts:
* SEC_IPC_HOST_INT_MASK.IPC_INPUT_READY_INT_MASK
*/

6
drivers/misc/mei/pci-me.c
View File

@ -400,6 +400,9 @@ static int mei_me_pm_runtime_suspend(struct device *device)
dev_dbg(&pdev->dev, "rpm: me: runtime suspend ret=%d\n", ret);
if (ret && ret != -EAGAIN)
schedule_work(&dev->reset_work);
return ret;
}
@ -423,6 +426,9 @@ static int mei_me_pm_runtime_resume(struct device *device)
dev_dbg(&pdev->dev, "rpm: me: runtime resume ret = %d\n", ret);
if (ret)
schedule_work(&dev->reset_work);
return ret;
}

7
drivers/misc/mei/pci-txe.c
View File

@ -347,6 +347,10 @@ static int mei_txe_pm_runtime_suspend(struct device *device)
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;
}
@ -372,6 +376,9 @@ static int mei_txe_pm_runtime_resume(struct device *device)
dev_dbg(&pdev->dev, "rpm: txe: runtime resume ret = %d\n", ret);
if (ret)
schedule_work(&dev->reset_work);
return ret;
}