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Commit 59b57c39 authored by Rama Krishna Phani A's avatar Rama Krishna Phani A
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thermal: tsens: Add fuse-based correction factors for MDM9607 



Additional per-sensor offets are being observed after factory
calibration. Fuse-based correction factors are implemented to the
existing 30 / 120 deg C calibration fuses.

Change-Id: I14de925a1619a54be0deb6a40d28013bb4be0d79
Signed-off-by: default avatarRama Krishna Phani A <rphani@codeaurora.org>
parent 2be5ff68

drivers/thermal/msm-tsens.c

+47 −15
Original line number Diff line number Diff line
@@ -2879,8 +2879,21 @@ static int tsens_calib_mdm9607_sensors(struct tsens_tm_device *tmdev) 
		pr_debug("calib mode is %d\n", tsens_calibration_mode);

	}



	if ((tsens_calibration_mode == TSENS_TWO_POINT_CALIB_N_WA) ||

		(tsens_calibration_mode ==

					TSENS_TWO_POINT_CALIB_N_OFFSET_WA)) {

		pr_debug("No offsets needed for these calib modes\n");

		for (i = 0; i < tmdev->tsens_num_sensor; i++) {

			tmdev->sensor[i].wa_temp1_calib_offset_factor = 0;

			tmdev->sensor[i].wa_temp2_calib_offset_factor = 0;

		}

	}



	if ((tsens_calibration_mode == TSENS_TWO_POINT_CALIB) ||

		(tsens_calibration_mode == TSENS_ONE_POINT_CALIB_OPTION_2)) {

		(tsens_calibration_mode == TSENS_ONE_POINT_CALIB_OPTION_2) ||

		(tsens_calibration_mode == TSENS_TWO_POINT_CALIB_N_WA) ||

		(tsens_calibration_mode ==

					TSENS_TWO_POINT_CALIB_N_OFFSET_WA)) {

		tsens_base0_data =

				(calib_data[0] & TSENS_MDM9607_BASE0_MASK);

		tsens0_point1 = (calib_data[0] & TSENS0_MDM9607_POINT1_MASK)
@@ -2893,7 +2906,9 @@ static int tsens_calib_mdm9607_sensors(struct tsens_tm_device *tmdev) 
		tsens4_point1 = (calib_data[2] & TSENS4_MDM9607_POINT1_MASK);

	}



	if (tsens_calibration_mode == TSENS_TWO_POINT_CALIB) {

	if ((tsens_calibration_mode == TSENS_TWO_POINT_CALIB) ||

		(tsens_calibration_mode ==

					TSENS_TWO_POINT_CALIB_N_OFFSET_WA)) {

		tsens_base1_data = (calib_data[2] & TSENS_MDM9607_BASE1_MASK)

			>> TSENS_MDM9607_BASE1_SHIFT;

		tsens0_point2 = (calib_data[0] & TSENS0_MDM9607_POINT2_MASK)
@@ -2917,31 +2932,46 @@ static int tsens_calib_mdm9607_sensors(struct tsens_tm_device *tmdev) 
	}



	if ((tsens_calibration_mode == TSENS_ONE_POINT_CALIB_OPTION_2) ||

			(tsens_calibration_mode == TSENS_TWO_POINT_CALIB)) {

		(tsens_calibration_mode == TSENS_TWO_POINT_CALIB) ||

		(tsens_calibration_mode == TSENS_TWO_POINT_CALIB_N_WA) ||

		(tsens_calibration_mode ==

					TSENS_TWO_POINT_CALIB_N_OFFSET_WA)) {

		calib_tsens_point1_data[0] =

			(((tsens_base0_data) + tsens0_point1) << 2);

			(((tsens_base0_data) + tsens0_point1) << 2) +

				tmdev->sensor[0].wa_temp1_calib_offset_factor;

		calib_tsens_point1_data[1] =

			(((tsens_base0_data) + tsens1_point1) << 2);

			(((tsens_base0_data) + tsens1_point1) << 2) +

				tmdev->sensor[1].wa_temp1_calib_offset_factor;

		calib_tsens_point1_data[2] =

			(((tsens_base0_data) + tsens2_point1) << 2);

			(((tsens_base0_data) + tsens2_point1) << 2) +

				tmdev->sensor[2].wa_temp1_calib_offset_factor;

		calib_tsens_point1_data[3] =

			(((tsens_base0_data) + tsens3_point1) << 2);

			(((tsens_base0_data) + tsens3_point1) << 2) +

				tmdev->sensor[3].wa_temp1_calib_offset_factor;

		calib_tsens_point1_data[4] =

			(((tsens_base0_data) + tsens4_point1) << 2);

			(((tsens_base0_data) + tsens4_point1) << 2)  +

				tmdev->sensor[4].wa_temp1_calib_offset_factor;

	}



	if (tsens_calibration_mode == TSENS_TWO_POINT_CALIB) {

	if ((tsens_calibration_mode == TSENS_TWO_POINT_CALIB) ||

		(tsens_calibration_mode ==

					TSENS_TWO_POINT_CALIB_N_OFFSET_WA)){

		pr_debug("two point calibration calculation\n");

		calib_tsens_point2_data[0] =

			((tsens_base1_data + tsens0_point2) << 2);

			((tsens_base1_data + tsens0_point2) << 2) +

				tmdev->sensor[0].wa_temp2_calib_offset_factor;

		calib_tsens_point2_data[1] =

			((tsens_base1_data + tsens1_point2) << 2);

			((tsens_base1_data + tsens1_point2) << 2) +

				tmdev->sensor[1].wa_temp2_calib_offset_factor;

		calib_tsens_point2_data[2] =

			((tsens_base1_data + tsens2_point2) << 2);

			((tsens_base1_data + tsens2_point2) << 2) +

				tmdev->sensor[2].wa_temp2_calib_offset_factor;

		calib_tsens_point2_data[3] =

			((tsens_base1_data + tsens3_point2) << 2);

			((tsens_base1_data + tsens3_point2) << 2) +

				tmdev->sensor[3].wa_temp2_calib_offset_factor;

		calib_tsens_point2_data[4] =

			((tsens_base1_data + tsens4_point2) << 2);

			((tsens_base1_data + tsens4_point2) << 2) +

				tmdev->sensor[4].wa_temp2_calib_offset_factor;

	}



	for (i = 0; i < tmdev->tsens_num_sensor; i++) {
@@ -2952,7 +2982,9 @@ static int tsens_calib_mdm9607_sensors(struct tsens_tm_device *tmdev) 
		pr_debug("sensor:%d - calib_data_point1:0x%x, calib_data_point2:0x%x\n",

				i, tmdev->sensor[i].calib_data_point1,

				tmdev->sensor[i].calib_data_point2);

		if (tsens_calibration_mode == TSENS_TWO_POINT_CALIB) {

		if ((tsens_calibration_mode == TSENS_TWO_POINT_CALIB) ||

			(tsens_calibration_mode ==

					TSENS_TWO_POINT_CALIB_N_OFFSET_WA)){

			/*

			 * slope (m) = adc_code2 - adc_code1 (y2 - y1)/

			 * temp_120_degc - temp_30_degc (x2 - x1)