thermal: qcom: tsens-v1: Add support for MSM8956 and MSM8976
Add support for reading calibrated value from thermistors in MSM8956, MSM8976 and their APQ variants. Signed-off-by: AngeloGioacchino Del Regno <kholk11@gmail.com> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191005104133.30297-2-kholk11@gmail.com
This commit is contained in:
AngeloGioacchino Del Regno
Daniel Lezcano
parent
573ae2d9e0
commit
0e58029017
@ -6,6 +6,7 @@
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#include <linux/bitops.h>
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#include <linux/regmap.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include "tsens.h"
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/* ----- SROT ------ */
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@ -20,6 +21,68 @@
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#define TM_HIGH_LOW_INT_STATUS_OFF 0x0088
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#define TM_HIGH_LOW_Sn_INT_THRESHOLD_OFF 0x0090
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/* eeprom layout data for msm8956/76 (v1) */
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#define MSM8976_BASE0_MASK 0xff
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#define MSM8976_BASE1_MASK 0xff
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#define MSM8976_BASE1_SHIFT 8
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#define MSM8976_S0_P1_MASK 0x3f00
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#define MSM8976_S1_P1_MASK 0x3f00000
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#define MSM8976_S2_P1_MASK 0x3f
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#define MSM8976_S3_P1_MASK 0x3f000
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#define MSM8976_S4_P1_MASK 0x3f00
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#define MSM8976_S5_P1_MASK 0x3f00000
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#define MSM8976_S6_P1_MASK 0x3f
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#define MSM8976_S7_P1_MASK 0x3f000
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#define MSM8976_S8_P1_MASK 0x1f8
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#define MSM8976_S9_P1_MASK 0x1f8000
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#define MSM8976_S10_P1_MASK 0xf8000000
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#define MSM8976_S10_P1_MASK_1 0x1
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#define MSM8976_S0_P2_MASK 0xfc000
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#define MSM8976_S1_P2_MASK 0xfc000000
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#define MSM8976_S2_P2_MASK 0xfc0
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#define MSM8976_S3_P2_MASK 0xfc0000
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#define MSM8976_S4_P2_MASK 0xfc000
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#define MSM8976_S5_P2_MASK 0xfc000000
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#define MSM8976_S6_P2_MASK 0xfc0
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#define MSM8976_S7_P2_MASK 0xfc0000
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#define MSM8976_S8_P2_MASK 0x7e00
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#define MSM8976_S9_P2_MASK 0x7e00000
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#define MSM8976_S10_P2_MASK 0x7e
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#define MSM8976_S0_P1_SHIFT 8
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#define MSM8976_S1_P1_SHIFT 20
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#define MSM8976_S2_P1_SHIFT 0
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#define MSM8976_S3_P1_SHIFT 12
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#define MSM8976_S4_P1_SHIFT 8
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#define MSM8976_S5_P1_SHIFT 20
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#define MSM8976_S6_P1_SHIFT 0
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#define MSM8976_S7_P1_SHIFT 12
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#define MSM8976_S8_P1_SHIFT 3
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#define MSM8976_S9_P1_SHIFT 15
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#define MSM8976_S10_P1_SHIFT 27
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#define MSM8976_S10_P1_SHIFT_1 0
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#define MSM8976_S0_P2_SHIFT 14
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#define MSM8976_S1_P2_SHIFT 26
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#define MSM8976_S2_P2_SHIFT 6
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#define MSM8976_S3_P2_SHIFT 18
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#define MSM8976_S4_P2_SHIFT 14
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#define MSM8976_S5_P2_SHIFT 26
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#define MSM8976_S6_P2_SHIFT 6
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#define MSM8976_S7_P2_SHIFT 18
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#define MSM8976_S8_P2_SHIFT 9
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#define MSM8976_S9_P2_SHIFT 21
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#define MSM8976_S10_P2_SHIFT 1
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#define MSM8976_CAL_SEL_MASK 0x3
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#define MSM8976_CAL_DEGC_PT1 30
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#define MSM8976_CAL_DEGC_PT2 120
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#define MSM8976_SLOPE_FACTOR 1000
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#define MSM8976_SLOPE_DEFAULT 3200
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/* eeprom layout data for qcs404/405 (v1) */
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#define BASE0_MASK 0x000007f8
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#define BASE1_MASK 0x0007f800
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@ -79,6 +142,30 @@
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#define CAL_SEL_MASK 7
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#define CAL_SEL_SHIFT 0
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static void compute_intercept_slope_8976(struct tsens_priv *priv,
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u32 *p1, u32 *p2, u32 mode)
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{
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int i;
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priv->sensor[0].slope = 3313;
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priv->sensor[1].slope = 3275;
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priv->sensor[2].slope = 3320;
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priv->sensor[3].slope = 3246;
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priv->sensor[4].slope = 3279;
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priv->sensor[5].slope = 3257;
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priv->sensor[6].slope = 3234;
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priv->sensor[7].slope = 3269;
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priv->sensor[8].slope = 3255;
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priv->sensor[9].slope = 3239;
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priv->sensor[10].slope = 3286;
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for (i = 0; i < priv->num_sensors; i++) {
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priv->sensor[i].offset = (p1[i] * MSM8976_SLOPE_FACTOR) -
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(MSM8976_CAL_DEGC_PT1 *
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priv->sensor[i].slope);
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}
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}
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static int calibrate_v1(struct tsens_priv *priv)
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{
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u32 base0 = 0, base1 = 0;
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@ -145,7 +232,74 @@ static int calibrate_v1(struct tsens_priv *priv)
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return 0;
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}
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/* v1.x: qcs404,405 */
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static int calibrate_8976(struct tsens_priv *priv)
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{
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int base0 = 0, base1 = 0, i;
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u32 p1[11], p2[11];
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int mode = 0, tmp = 0;
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u32 *qfprom_cdata;
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qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
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if (IS_ERR(qfprom_cdata)) {
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kfree(qfprom_cdata);
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return PTR_ERR(qfprom_cdata);
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}
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mode = (qfprom_cdata[4] & MSM8976_CAL_SEL_MASK);
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dev_dbg(priv->dev, "calibration mode is %d\n", mode);
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switch (mode) {
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case TWO_PT_CALIB:
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base1 = (qfprom_cdata[2] & MSM8976_BASE1_MASK) >> MSM8976_BASE1_SHIFT;
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p2[0] = (qfprom_cdata[0] & MSM8976_S0_P2_MASK) >> MSM8976_S0_P2_SHIFT;
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p2[1] = (qfprom_cdata[0] & MSM8976_S1_P2_MASK) >> MSM8976_S1_P2_SHIFT;
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p2[2] = (qfprom_cdata[1] & MSM8976_S2_P2_MASK) >> MSM8976_S2_P2_SHIFT;
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p2[3] = (qfprom_cdata[1] & MSM8976_S3_P2_MASK) >> MSM8976_S3_P2_SHIFT;
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p2[4] = (qfprom_cdata[2] & MSM8976_S4_P2_MASK) >> MSM8976_S4_P2_SHIFT;
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p2[5] = (qfprom_cdata[2] & MSM8976_S5_P2_MASK) >> MSM8976_S5_P2_SHIFT;
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p2[6] = (qfprom_cdata[3] & MSM8976_S6_P2_MASK) >> MSM8976_S6_P2_SHIFT;
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p2[7] = (qfprom_cdata[3] & MSM8976_S7_P2_MASK) >> MSM8976_S7_P2_SHIFT;
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p2[8] = (qfprom_cdata[4] & MSM8976_S8_P2_MASK) >> MSM8976_S8_P2_SHIFT;
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p2[9] = (qfprom_cdata[4] & MSM8976_S9_P2_MASK) >> MSM8976_S9_P2_SHIFT;
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p2[10] = (qfprom_cdata[5] & MSM8976_S10_P2_MASK) >> MSM8976_S10_P2_SHIFT;
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for (i = 0; i < priv->num_sensors; i++)
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p2[i] = ((base1 + p2[i]) << 2);
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/* Fall through */
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case ONE_PT_CALIB2:
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base0 = qfprom_cdata[0] & MSM8976_BASE0_MASK;
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p1[0] = (qfprom_cdata[0] & MSM8976_S0_P1_MASK) >> MSM8976_S0_P1_SHIFT;
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p1[1] = (qfprom_cdata[0] & MSM8976_S1_P1_MASK) >> MSM8976_S1_P1_SHIFT;
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p1[2] = (qfprom_cdata[1] & MSM8976_S2_P1_MASK) >> MSM8976_S2_P1_SHIFT;
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p1[3] = (qfprom_cdata[1] & MSM8976_S3_P1_MASK) >> MSM8976_S3_P1_SHIFT;
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p1[4] = (qfprom_cdata[2] & MSM8976_S4_P1_MASK) >> MSM8976_S4_P1_SHIFT;
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p1[5] = (qfprom_cdata[2] & MSM8976_S5_P1_MASK) >> MSM8976_S5_P1_SHIFT;
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p1[6] = (qfprom_cdata[3] & MSM8976_S6_P1_MASK) >> MSM8976_S6_P1_SHIFT;
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p1[7] = (qfprom_cdata[3] & MSM8976_S7_P1_MASK) >> MSM8976_S7_P1_SHIFT;
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p1[8] = (qfprom_cdata[4] & MSM8976_S8_P1_MASK) >> MSM8976_S8_P1_SHIFT;
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p1[9] = (qfprom_cdata[4] & MSM8976_S9_P1_MASK) >> MSM8976_S9_P1_SHIFT;
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p1[10] = (qfprom_cdata[4] & MSM8976_S10_P1_MASK) >> MSM8976_S10_P1_SHIFT;
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tmp = (qfprom_cdata[5] & MSM8976_S10_P1_MASK_1) << MSM8976_S10_P1_SHIFT_1;
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p1[10] |= tmp;
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for (i = 0; i < priv->num_sensors; i++)
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p1[i] = (((base0) + p1[i]) << 2);
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break;
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default:
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for (i = 0; i < priv->num_sensors; i++) {
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p1[i] = 500;
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p2[i] = 780;
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}
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break;
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}
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compute_intercept_slope_8976(priv, p1, p2, mode);
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kfree(qfprom_cdata);
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return 0;
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}
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/* v1.x: msm8956,8976,qcs404,405 */
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static const struct tsens_features tsens_v1_feat = {
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.ver_major = VER_1_X,
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@ -221,3 +375,18 @@ const struct tsens_plat_data data_tsens_v1 = {
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.feat = &tsens_v1_feat,
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.fields = tsens_v1_regfields,
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};
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static const struct tsens_ops ops_8976 = {
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.init = init_common,
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.calibrate = calibrate_8976,
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.get_temp = get_temp_tsens_valid,
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};
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/* Valid for both MSM8956 and MSM8976. Sensor ID 3 is unused. */
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const struct tsens_plat_data data_8976 = {
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.num_sensors = 11,
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.ops = &ops_8976,
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.hw_ids = (unsigned int[]){0, 1, 2, 4, 5, 6, 7, 8, 9, 10},
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.feat = &tsens_v1_feat,
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.fields = tsens_v1_regfields,
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};
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@ -62,6 +62,9 @@ static const struct of_device_id tsens_table[] = {
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}, {
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.compatible = "qcom,msm8974-tsens",
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.data = &data_8974,
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}, {
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.compatible = "qcom,msm8976-tsens",
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.data = &data_8976,
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}, {
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.compatible = "qcom,msm8996-tsens",
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.data = &data_8996,
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@ -508,7 +508,7 @@ extern const struct tsens_plat_data data_8960;
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extern const struct tsens_plat_data data_8916, data_8974;
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/* TSENS v1 targets */
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extern const struct tsens_plat_data data_tsens_v1;
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extern const struct tsens_plat_data data_tsens_v1, data_8976;
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/* TSENS v2 targets */
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extern const struct tsens_plat_data data_8996, data_tsens_v2;
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