From 5e6703bd2d83548998848865cb9a9a795f31a311 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Thu, 5 May 2016 14:21:41 +0530 Subject: thermal: qcom: tsens-8974: Add support for 8974 family of SoCs Add .calibrate support for 8974 family as part of tsens_ops. Based on the original code by Siddartha Mohanadoss and Stephen Boyd. Signed-off-by: Rajendra Nayak Signed-off-by: Eduardo Valentin Signed-off-by: Zhang Rui --- drivers/thermal/qcom/Makefile | 2 +- drivers/thermal/qcom/tsens-8974.c | 244 ++++++++++++++++++++++++++++++++++++++ drivers/thermal/qcom/tsens.c | 1 + drivers/thermal/qcom/tsens.h | 2 +- 4 files changed, 247 insertions(+), 2 deletions(-) create mode 100644 drivers/thermal/qcom/tsens-8974.c (limited to 'drivers/thermal') diff --git a/drivers/thermal/qcom/Makefile b/drivers/thermal/qcom/Makefile index 05c98e4b73a3..a471100ac5f6 100644 --- a/drivers/thermal/qcom/Makefile +++ b/drivers/thermal/qcom/Makefile @@ -1,2 +1,2 @@ obj-$(CONFIG_QCOM_TSENS) += qcom_tsens.o -qcom_tsens-y += tsens.o tsens-common.o tsens-8916.o +qcom_tsens-y += tsens.o tsens-common.o tsens-8916.o tsens-8974.o diff --git a/drivers/thermal/qcom/tsens-8974.c b/drivers/thermal/qcom/tsens-8974.c new file mode 100644 index 000000000000..da3ca4c18999 --- /dev/null +++ b/drivers/thermal/qcom/tsens-8974.c @@ -0,0 +1,244 @@ +/* + * Copyright (c) 2015, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include +#include "tsens.h" + +/* eeprom layout data for 8974 */ +#define BASE1_MASK 0xff +#define S0_P1_MASK 0x3f00 +#define S1_P1_MASK 0xfc000 +#define S2_P1_MASK 0x3f00000 +#define S3_P1_MASK 0xfc000000 +#define S4_P1_MASK 0x3f +#define S5_P1_MASK 0xfc0 +#define S6_P1_MASK 0x3f000 +#define S7_P1_MASK 0xfc0000 +#define S8_P1_MASK 0x3f000000 +#define S8_P1_MASK_BKP 0x3f +#define S9_P1_MASK 0x3f +#define S9_P1_MASK_BKP 0xfc0 +#define S10_P1_MASK 0xfc0 +#define S10_P1_MASK_BKP 0x3f000 +#define CAL_SEL_0_1 0xc0000000 +#define CAL_SEL_2 0x40000000 +#define CAL_SEL_SHIFT 30 +#define CAL_SEL_SHIFT_2 28 + +#define S0_P1_SHIFT 8 +#define S1_P1_SHIFT 14 +#define S2_P1_SHIFT 20 +#define S3_P1_SHIFT 26 +#define S5_P1_SHIFT 6 +#define S6_P1_SHIFT 12 +#define S7_P1_SHIFT 18 +#define S8_P1_SHIFT 24 +#define S9_P1_BKP_SHIFT 6 +#define S10_P1_SHIFT 6 +#define S10_P1_BKP_SHIFT 12 + +#define BASE2_SHIFT 12 +#define BASE2_BKP_SHIFT 18 +#define S0_P2_SHIFT 20 +#define S0_P2_BKP_SHIFT 26 +#define S1_P2_SHIFT 26 +#define S2_P2_BKP_SHIFT 6 +#define S3_P2_SHIFT 6 +#define S3_P2_BKP_SHIFT 12 +#define S4_P2_SHIFT 12 +#define S4_P2_BKP_SHIFT 18 +#define S5_P2_SHIFT 18 +#define S5_P2_BKP_SHIFT 24 +#define S6_P2_SHIFT 24 +#define S7_P2_BKP_SHIFT 6 +#define S8_P2_SHIFT 6 +#define S8_P2_BKP_SHIFT 12 +#define S9_P2_SHIFT 12 +#define S9_P2_BKP_SHIFT 18 +#define S10_P2_SHIFT 18 +#define S10_P2_BKP_SHIFT 24 + +#define BASE2_MASK 0xff000 +#define BASE2_BKP_MASK 0xfc0000 +#define S0_P2_MASK 0x3f00000 +#define S0_P2_BKP_MASK 0xfc000000 +#define S1_P2_MASK 0xfc000000 +#define S1_P2_BKP_MASK 0x3f +#define S2_P2_MASK 0x3f +#define S2_P2_BKP_MASK 0xfc0 +#define S3_P2_MASK 0xfc0 +#define S3_P2_BKP_MASK 0x3f000 +#define S4_P2_MASK 0x3f000 +#define S4_P2_BKP_MASK 0xfc0000 +#define S5_P2_MASK 0xfc0000 +#define S5_P2_BKP_MASK 0x3f000000 +#define S6_P2_MASK 0x3f000000 +#define S6_P2_BKP_MASK 0x3f +#define S7_P2_MASK 0x3f +#define S7_P2_BKP_MASK 0xfc0 +#define S8_P2_MASK 0xfc0 +#define S8_P2_BKP_MASK 0x3f000 +#define S9_P2_MASK 0x3f000 +#define S9_P2_BKP_MASK 0xfc0000 +#define S10_P2_MASK 0xfc0000 +#define S10_P2_BKP_MASK 0x3f000000 + +#define BKP_SEL 0x3 +#define BKP_REDUN_SEL 0xe0000000 +#define BKP_REDUN_SHIFT 29 + +#define BIT_APPEND 0x3 + +static int calibrate_8974(struct tsens_device *tmdev) +{ + int base1 = 0, base2 = 0, i; + u32 p1[11], p2[11]; + int mode = 0; + u32 *calib, *bkp; + u32 calib_redun_sel; + + calib = (u32 *)qfprom_read(tmdev->dev, "calib"); + if (IS_ERR(calib)) + return PTR_ERR(calib); + + bkp = (u32 *)qfprom_read(tmdev->dev, "calib_backup"); + if (IS_ERR(bkp)) + return PTR_ERR(bkp); + + calib_redun_sel = bkp[1] & BKP_REDUN_SEL; + calib_redun_sel >>= BKP_REDUN_SHIFT; + + if (calib_redun_sel == BKP_SEL) { + mode = (calib[4] & CAL_SEL_0_1) >> CAL_SEL_SHIFT; + mode |= (calib[5] & CAL_SEL_2) >> CAL_SEL_SHIFT_2; + + switch (mode) { + case TWO_PT_CALIB: + base2 = (bkp[2] & BASE2_BKP_MASK) >> BASE2_BKP_SHIFT; + p2[0] = (bkp[2] & S0_P2_BKP_MASK) >> S0_P2_BKP_SHIFT; + p2[1] = (bkp[3] & S1_P2_BKP_MASK); + p2[2] = (bkp[3] & S2_P2_BKP_MASK) >> S2_P2_BKP_SHIFT; + p2[3] = (bkp[3] & S3_P2_BKP_MASK) >> S3_P2_BKP_SHIFT; + p2[4] = (bkp[3] & S4_P2_BKP_MASK) >> S4_P2_BKP_SHIFT; + p2[5] = (calib[4] & S5_P2_BKP_MASK) >> S5_P2_BKP_SHIFT; + p2[6] = (calib[5] & S6_P2_BKP_MASK); + p2[7] = (calib[5] & S7_P2_BKP_MASK) >> S7_P2_BKP_SHIFT; + p2[8] = (calib[5] & S8_P2_BKP_MASK) >> S8_P2_BKP_SHIFT; + p2[9] = (calib[5] & S9_P2_BKP_MASK) >> S9_P2_BKP_SHIFT; + p2[10] = (calib[5] & S10_P2_BKP_MASK) >> S10_P2_BKP_SHIFT; + /* Fall through */ + case ONE_PT_CALIB: + case ONE_PT_CALIB2: + base1 = bkp[0] & BASE1_MASK; + p1[0] = (bkp[0] & S0_P1_MASK) >> S0_P1_SHIFT; + p1[1] = (bkp[0] & S1_P1_MASK) >> S1_P1_SHIFT; + p1[2] = (bkp[0] & S2_P1_MASK) >> S2_P1_SHIFT; + p1[3] = (bkp[0] & S3_P1_MASK) >> S3_P1_SHIFT; + p1[4] = (bkp[1] & S4_P1_MASK); + p1[5] = (bkp[1] & S5_P1_MASK) >> S5_P1_SHIFT; + p1[6] = (bkp[1] & S6_P1_MASK) >> S6_P1_SHIFT; + p1[7] = (bkp[1] & S7_P1_MASK) >> S7_P1_SHIFT; + p1[8] = (bkp[2] & S8_P1_MASK_BKP) >> S8_P1_SHIFT; + p1[9] = (bkp[2] & S9_P1_MASK_BKP) >> S9_P1_BKP_SHIFT; + p1[10] = (bkp[2] & S10_P1_MASK_BKP) >> S10_P1_BKP_SHIFT; + break; + } + } else { + mode = (calib[1] & CAL_SEL_0_1) >> CAL_SEL_SHIFT; + mode |= (calib[3] & CAL_SEL_2) >> CAL_SEL_SHIFT_2; + + switch (mode) { + case TWO_PT_CALIB: + base2 = (calib[2] & BASE2_MASK) >> BASE2_SHIFT; + p2[0] = (calib[2] & S0_P2_MASK) >> S0_P2_SHIFT; + p2[1] = (calib[2] & S1_P2_MASK) >> S1_P2_SHIFT; + p2[2] = (calib[3] & S2_P2_MASK); + p2[3] = (calib[3] & S3_P2_MASK) >> S3_P2_SHIFT; + p2[4] = (calib[3] & S4_P2_MASK) >> S4_P2_SHIFT; + p2[5] = (calib[3] & S5_P2_MASK) >> S5_P2_SHIFT; + p2[6] = (calib[3] & S6_P2_MASK) >> S6_P2_SHIFT; + p2[7] = (calib[4] & S7_P2_MASK); + p2[8] = (calib[4] & S8_P2_MASK) >> S8_P2_SHIFT; + p2[9] = (calib[4] & S9_P2_MASK) >> S9_P2_SHIFT; + p2[10] = (calib[4] & S10_P2_MASK) >> S10_P2_SHIFT; + /* Fall through */ + case ONE_PT_CALIB: + case ONE_PT_CALIB2: + base1 = calib[0] & BASE1_MASK; + p1[0] = (calib[0] & S0_P1_MASK) >> S0_P1_SHIFT; + p1[1] = (calib[0] & S1_P1_MASK) >> S1_P1_SHIFT; + p1[2] = (calib[0] & S2_P1_MASK) >> S2_P1_SHIFT; + p1[3] = (calib[0] & S3_P1_MASK) >> S3_P1_SHIFT; + p1[4] = (calib[1] & S4_P1_MASK); + p1[5] = (calib[1] & S5_P1_MASK) >> S5_P1_SHIFT; + p1[6] = (calib[1] & S6_P1_MASK) >> S6_P1_SHIFT; + p1[7] = (calib[1] & S7_P1_MASK) >> S7_P1_SHIFT; + p1[8] = (calib[1] & S8_P1_MASK) >> S8_P1_SHIFT; + p1[9] = (calib[2] & S9_P1_MASK); + p1[10] = (calib[2] & S10_P1_MASK) >> S10_P1_SHIFT; + break; + } + } + + switch (mode) { + case ONE_PT_CALIB: + for (i = 0; i < tmdev->num_sensors; i++) + p1[i] += (base1 << 2) | BIT_APPEND; + break; + case TWO_PT_CALIB: + for (i = 0; i < tmdev->num_sensors; i++) { + p2[i] += base2; + p2[i] <<= 2; + p2[i] |= BIT_APPEND; + } + /* Fall through */ + case ONE_PT_CALIB2: + for (i = 0; i < tmdev->num_sensors; i++) { + p1[i] += base1; + p1[i] <<= 2; + p1[i] |= BIT_APPEND; + } + break; + default: + for (i = 0; i < tmdev->num_sensors; i++) + p2[i] = 780; + p1[0] = 502; + p1[1] = 509; + p1[2] = 503; + p1[3] = 509; + p1[4] = 505; + p1[5] = 509; + p1[6] = 507; + p1[7] = 510; + p1[8] = 508; + p1[9] = 509; + p1[10] = 508; + break; + } + + compute_intercept_slope(tmdev, p1, p2, mode); + + return 0; +} + +const struct tsens_ops ops_8974 = { + .init = init_common, + .calibrate = calibrate_8974, + .get_temp = get_temp_common, +}; + +const struct tsens_data data_8974 = { + .num_sensors = 11, + .ops = &ops_8974, +}; diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c index 7f3dfa1d6757..5f206e3c9198 100644 --- a/drivers/thermal/qcom/tsens.c +++ b/drivers/thermal/qcom/tsens.c @@ -68,6 +68,7 @@ static const struct of_device_id tsens_table[] = { .data = &data_8916, }, { .compatible = "qcom,msm8974-tsens", + .data = &data_8974, }, {} }; diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h index e767ad566340..8ab99971a1a7 100644 --- a/drivers/thermal/qcom/tsens.h +++ b/drivers/thermal/qcom/tsens.h @@ -87,6 +87,6 @@ void compute_intercept_slope(struct tsens_device *, u32 *, u32 *, u32); int init_common(struct tsens_device *); int get_temp_common(struct tsens_device *, int, int *); -extern const struct tsens_data data_8916; +extern const struct tsens_data data_8916, data_8974; #endif /* __QCOM_TSENS_H__ */ -- cgit v1.2.1