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mei: recover after errors in runtime pm flow

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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;
}