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Commit 6df022c6 authored by Rama Krishna Phani A's avatar Rama Krishna Phani A
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thermal: tsens: Add fuse-based correction factors for MSM8909 



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: I64aa07df75b1a5c9353ac7034958853e82d871a3
Signed-off-by: default avatarRama Krishna Phani A <rphani@codeaurora.org>
parent 2be5ff68

drivers/thermal/msm-tsens.c

+18 −0
Original line number Diff line number Diff line
@@ -580,6 +580,12 @@ 
#define TSENS3_MSM8909_POINT2_SHIFT	10

#define TSENS4_MSM8909_POINT2_SHIFT	22



#define TSENS_MSM8909_D30_WA_S1   10

#define TSENS_MSM8909_D30_WA_S3   9

#define TSENS_MSM8909_D30_WA_S4   8

#define TSENS_MSM8909_D120_WA_S1  6

#define TSENS_MSM8909_D120_WA_S3  9

#define TSENS_MSM8909_D120_WA_S4  10

#define TSENS_ZIRC_CAL_SEL		0x700

#define TSENS_ZIRC_CAL_SEL_SHIFT	8

#define TSENS_BASE0_ZIRC_MASK		0x3ff
@@ -3356,12 +3362,18 @@ static int tsens_calib_msm8909_sensors(struct tsens_tm_device *tmdev) 
			(((tsens_base0_data) + tsens0_point1) << 2);

		calib_tsens_point1_data[1] =

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

		calib_tsens_point1_data[1] = calib_tsens_point1_data[1] -

						TSENS_MSM8909_D30_WA_S1;

		calib_tsens_point1_data[2] =

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

		calib_tsens_point1_data[3] =

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

		calib_tsens_point1_data[3] = calib_tsens_point1_data[3] -

						TSENS_MSM8909_D30_WA_S3;

		calib_tsens_point1_data[4] =

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

		calib_tsens_point1_data[4] = calib_tsens_point1_data[4] -

						TSENS_MSM8909_D30_WA_S4;

	}



	if (tsens_calibration_mode == TSENS_TWO_POINT_CALIB) {
@@ -3370,12 +3382,18 @@ static int tsens_calib_msm8909_sensors(struct tsens_tm_device *tmdev) 
			((tsens_base1_data + tsens0_point2) << 2);

		calib_tsens_point2_data[1] =

			((tsens_base1_data + tsens1_point2) << 2);

		calib_tsens_point2_data[1] = calib_tsens_point2_data[1] -

						TSENS_MSM8909_D120_WA_S1;

		calib_tsens_point2_data[2] =

			((tsens_base1_data + tsens2_point2) << 2);

		calib_tsens_point2_data[3] =

			((tsens_base1_data + tsens3_point2) << 2);

		calib_tsens_point2_data[3] = calib_tsens_point2_data[3] -

						TSENS_MSM8909_D120_WA_S3;

		calib_tsens_point2_data[4] =

			((tsens_base1_data + tsens4_point2) << 2);

		calib_tsens_point2_data[4] = calib_tsens_point2_data[4] -

						TSENS_MSM8909_D120_WA_S4;

	}



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