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i3c: master: Report wakeup events for IBIs

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An I3C device configured as a wakeup source can wake the system by
generating an In-Band Interrupt (IBI).

When an IBI is queued for processing, record a wakeup event for the
device if wakeup is enabled.  Use a 100 ms processing interval to give
the I3C device driver time to process the IBI.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260807145638.168865-10-adrian.hunter@intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Adrian Hunter 2026-08-07 17:56:33 +03:00 committed by Alexandre Belloni
parent 9fd18a8655
commit ff2b20f8f1
1 changed files with 6 additions and 0 deletions
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6
drivers/i3c/master.c
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@ -3384,6 +3384,9 @@ static void i3c_master_unregister_i3c_devs(struct i3c_master_controller *master)
}
}
/* Approximate time for IBI handler to run */
#define I3C_WAKEUP_PROCESSING_TIME_MS 100
/**
* i3c_master_queue_ibi() - Queue an IBI
* @dev: the device this IBI is coming from
@ -3397,6 +3400,9 @@ void i3c_master_queue_ibi(struct i3c_dev_desc *dev, struct i3c_ibi_slot *slot)
if (!dev->ibi || !slot)
return;
if (device_may_wakeup(&dev->dev->dev))
pm_wakeup_event(&dev->dev->dev, I3C_WAKEUP_PROCESSING_TIME_MS);
atomic_inc(&dev->ibi->pending_ibis);
queue_work(dev->ibi->wq, &slot->work);
}