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Commit 2c7ed23c authored by Siddartha Mohanadoss's avatar Siddartha Mohanadoss
Browse files

thermal: tsens_debug: Add tsens debug 



-Add debug count to the ISR and workqueue patch with timestamp.
-Log the last 10 samples of temperature read for each sensor.

Change-Id: Icc2e3809460eb382bbc1e6b2549706b9b21f9994
Signed-off-by: default avatarSiddartha Mohanadoss <smohanad@codeaurora.org>
parent 04e700e7

drivers/thermal/msm8974-tsens.c

+45 −1
Original line number Diff line number Diff line
@@ -551,6 +551,18 @@ struct tsens_tm_device_sensor { 
	uint32_t			slope_mul_tsens_factor;

};



struct tsens_dbg_counter {

	uint32_t			dbg_count[10];

	uint32_t			idx;

	unsigned long long		time_stmp[10];

};



struct tsens_sensor_dbg_info {

	unsigned long			temp[10];

	uint32_t			idx;

	unsigned long long		time_stmp[10];

};



struct tsens_tm_device {

	struct platform_device		*pdev;

	struct workqueue_struct		*tsens_wq;
@@ -571,6 +583,9 @@ struct tsens_tm_device { 
	uint32_t			calib_mode;

	uint32_t			tsens_type;

	bool				tsens_valid_status_check;

	struct tsens_dbg_counter	tsens_irq_dbg;

	struct tsens_dbg_counter	tsens_wq_dbg;

	struct tsens_sensor_dbg_info	sensor_dbg_info[16];

	struct tsens_tm_device_sensor	sensor[0];

};
@@ -748,12 +763,20 @@ static int tsens_tz_get_temp(struct thermal_zone_device *thermal, 
			     unsigned long *temp)

{

	struct tsens_tm_device_sensor *tm_sensor = thermal->devdata;

	uint32_t idx = 0;



	if (!tm_sensor || tm_sensor->mode != THERMAL_DEVICE_ENABLED || !temp)

		return -EINVAL;



	msm_tsens_get_temp(tm_sensor->sensor_hw_num, temp);



	idx = tmdev->sensor_dbg_info[tm_sensor->sensor_hw_num].idx;

	tmdev->sensor_dbg_info[tm_sensor->sensor_hw_num].temp[idx%10] = *temp;

	tmdev->sensor_dbg_info[tm_sensor->sensor_hw_num].time_stmp[idx%10] =

					sched_clock();

	idx++;

	tmdev->sensor_dbg_info[tm_sensor->sensor_hw_num].idx = idx;



	return 0;

}
@@ -973,6 +996,9 @@ static struct thermal_zone_device_ops tsens_thermal_zone_ops = { 
	.notify = tsens_tz_notify,

};



uint32_t tsens1_dbg_cnt;

unsigned long long tsens1_time_stmp;



static void tsens_scheduler_fn(struct work_struct *work)

{

	struct tsens_tm_device *tm = container_of(work, struct tsens_tm_device,
@@ -981,6 +1007,7 @@ static void tsens_scheduler_fn(struct work_struct *work) 
	void __iomem *sensor_status_addr;

	void __iomem *sensor_status_ctrl_addr;

	int sensor_sw_id = -EINVAL, rc = 0;

	uint32_t idx = 0;



	if (tmdev->tsens_type == TSENS_TYPE2)

		sensor_status_addr = TSENS2_SN_STATUS_ADDR(tmdev->tsens_addr);
@@ -1045,6 +1072,12 @@ static void tsens_scheduler_fn(struct work_struct *work) 
					tm->sensor[i].sensor_hw_num);

		}

	}

	/* debug */

	idx = tmdev->tsens_wq_dbg.idx;

	tmdev->tsens_wq_dbg.dbg_count[idx%10]++;

	tmdev->tsens_wq_dbg.time_stmp[idx%10] = sched_clock();

	tmdev->tsens_wq_dbg.idx++;



	mb();



	enable_irq(tmdev->tsens_irq);
@@ -1052,8 +1085,16 @@ static void tsens_scheduler_fn(struct work_struct *work) 


static irqreturn_t tsens_isr(int irq, void *data)

{

	uint32_t idx = 0;



	disable_irq_nosync(tmdev->tsens_irq);



	/* debug */

	idx = tmdev->tsens_irq_dbg.idx;

	tmdev->tsens_irq_dbg.dbg_count[idx%10]++;

	tmdev->tsens_irq_dbg.time_stmp[idx%10] = sched_clock();

	tmdev->tsens_irq_dbg.idx++;



	queue_work(tmdev->tsens_wq, &tmdev->tsens_work);



	return IRQ_HANDLED;
@@ -3264,7 +3305,7 @@ fail_tmdev: 


static int tsens_tm_probe(struct platform_device *pdev)

{

	int rc;

	int rc, i;



	if (tmdev) {

		pr_err("TSENS device already in use\n");
@@ -3297,6 +3338,9 @@ static int tsens_tm_probe(struct platform_device *pdev) 


	tmdev->prev_reading_avail = true;



	for (i = 0; i < 16; i++)

		tmdev->sensor_dbg_info[i].idx = 0;



	tmdev->is_ready = true;



	platform_set_drvdata(pdev, tmdev);