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Commit 1fc40d83 authored by Ram Chandrasekar's avatar Ram Chandrasekar
Browse files

msm: lmh_lite: Make LMH intensity polling a high priority 



Add support for a new high priority workqueue to post
all the LMH polling work. This ensures that the LMH
poll work executes in high priority, which indirectly
ensures that intensity change notifications are sent
without much delay.

CRs-Fixed: 900507
Change-Id: I8670a68c83183288d674b0cf75f7da2744cbf86b
Signed-off-by: default avatarRam Chandrasekar <rkumbako@codeaurora.org>
parent a161fd21

drivers/thermal/lmh_lite.c

+13 −3
Original line number Diff line number Diff line
@@ -140,6 +140,7 @@ struct lmh_debug { 


struct lmh_driver_data {

	struct device			*dev;

	struct workqueue_struct		*poll_wq;

	struct delayed_work		poll_work;

	uint32_t			log_enabled;

	uint32_t			log_delay;
@@ -368,7 +369,7 @@ static void lmh_poll(struct work_struct *work) 
		enable_irq(lmh_data->irq_num);

		goto poll_exit;

	} else {

		schedule_delayed_work(&lmh_dat->poll_work,

		queue_delayed_work(lmh_dat->poll_wq, &lmh_dat->poll_work,

			msecs_to_jiffies(lmh_poll_interval));

	}
@@ -440,7 +441,7 @@ static irqreturn_t lmh_isr_thread(int irq, void *data) 


decide_next_action:

	if (lmh_dat->intr_state == LMH_ISR_POLLING)

		schedule_delayed_work(&lmh_dat->poll_work,

		queue_delayed_work(lmh_dat->poll_wq, &lmh_dat->poll_work,

			msecs_to_jiffies(lmh_poll_interval));

	else

		enable_irq(lmh_dat->irq_num);
@@ -1199,7 +1200,14 @@ static int lmh_probe(struct platform_device *pdev) 
	}

	lmh_data->dev = &pdev->dev;



	lmh_data->poll_wq = alloc_workqueue("lmh_poll_wq", WQ_HIGHPRI, 0);

	if (!lmh_data->poll_wq) {

		pr_err("Error allocating workqueue\n");

		ret = -ENOMEM;

		goto probe_exit;

	}

	INIT_DEFERRABLE_WORK(&lmh_data->poll_work, lmh_poll);



	ret = lmh_sensor_init(pdev);

	if (ret) {

		pr_err("Sensor Init failed. err:%d\n", ret);
@@ -1225,6 +1233,8 @@ static int lmh_probe(struct platform_device *pdev) 
	return ret;



probe_exit:

	if (lmh_data->poll_wq)

		destroy_workqueue(lmh_data->poll_wq);

	lmh_data = NULL;

	return ret;

}
@@ -1233,7 +1243,7 @@ static int lmh_remove(struct platform_device *pdev) 
{

	struct lmh_driver_data *lmh_dat = platform_get_drvdata(pdev);



	cancel_delayed_work_sync(&lmh_dat->poll_work);

	destroy_workqueue(lmh_dat->poll_wq);

	free_irq(lmh_dat->irq_num, lmh_dat);

	lmh_remove_sensors();

	lmh_device_deregister(&lmh_dat->dev_info.dev_ops);