Commit a2149ab8 authored by Konrad Dybcio's avatar Konrad Dybcio Committed by Daniel Lezcano
Browse files

thermal/drivers/qcom/tsens-v0_1: Add support for MDM9607 



MDM9607 TSENS IP is very similar to the one of MSM8916, with
minor adjustments to various tuning values.

Signed-off-by: default avatarKonrad Dybcio <konrad.dybcio@somainline.org>
Acked-by: default avatarThara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210319220802.198215-2-konrad.dybcio@somainline.org
parent c0612265

drivers/thermal/qcom/tsens-v0_1.c

+97 −1
Original line number Diff line number Diff line
@@ -190,6 +190,39 @@ 


#define BIT_APPEND		0x3



/* eeprom layout data for mdm9607 */

#define MDM9607_BASE0_MASK	0x000000ff

#define MDM9607_BASE1_MASK	0x000ff000

#define MDM9607_BASE0_SHIFT	0

#define MDM9607_BASE1_SHIFT	12



#define MDM9607_S0_P1_MASK	0x00003f00

#define MDM9607_S1_P1_MASK	0x03f00000

#define MDM9607_S2_P1_MASK	0x0000003f

#define MDM9607_S3_P1_MASK	0x0003f000

#define MDM9607_S4_P1_MASK	0x0000003f



#define MDM9607_S0_P2_MASK	0x000fc000

#define MDM9607_S1_P2_MASK	0xfc000000

#define MDM9607_S2_P2_MASK	0x00000fc0

#define MDM9607_S3_P2_MASK	0x00fc0000

#define MDM9607_S4_P2_MASK	0x00000fc0



#define MDM9607_S0_P1_SHIFT	8

#define MDM9607_S1_P1_SHIFT	20

#define MDM9607_S2_P1_SHIFT	0

#define MDM9607_S3_P1_SHIFT	12

#define MDM9607_S4_P1_SHIFT	0



#define MDM9607_S0_P2_SHIFT	14

#define MDM9607_S1_P2_SHIFT	26

#define MDM9607_S2_P2_SHIFT	6

#define MDM9607_S3_P2_SHIFT	18

#define MDM9607_S4_P2_SHIFT	6



#define MDM9607_CAL_SEL_MASK	0x00700000

#define MDM9607_CAL_SEL_SHIFT	20



static int calibrate_8916(struct tsens_priv *priv)

{

	int base0 = 0, base1 = 0, i;
@@ -452,7 +485,56 @@ static int calibrate_8974(struct tsens_priv *priv) 
	return 0;

}



/* v0.1: 8916, 8939, 8974 */

static int calibrate_9607(struct tsens_priv *priv)

{

	int base, i;

	u32 p1[5], p2[5];

	int mode = 0;

	u32 *qfprom_cdata;



	qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");

	if (IS_ERR(qfprom_cdata))

		return PTR_ERR(qfprom_cdata);



	mode = (qfprom_cdata[2] & MDM9607_CAL_SEL_MASK) >> MDM9607_CAL_SEL_SHIFT;

	dev_dbg(priv->dev, "calibration mode is %d\n", mode);



	switch (mode) {

	case TWO_PT_CALIB:

		base = (qfprom_cdata[2] & MDM9607_BASE1_MASK) >> MDM9607_BASE1_SHIFT;

		p2[0] = (qfprom_cdata[0] & MDM9607_S0_P2_MASK) >> MDM9607_S0_P2_SHIFT;

		p2[1] = (qfprom_cdata[0] & MDM9607_S1_P2_MASK) >> MDM9607_S1_P2_SHIFT;

		p2[2] = (qfprom_cdata[1] & MDM9607_S2_P2_MASK) >> MDM9607_S2_P2_SHIFT;

		p2[3] = (qfprom_cdata[1] & MDM9607_S3_P2_MASK) >> MDM9607_S3_P2_SHIFT;

		p2[4] = (qfprom_cdata[2] & MDM9607_S4_P2_MASK) >> MDM9607_S4_P2_SHIFT;

		for (i = 0; i < priv->num_sensors; i++)

			p2[i] = ((base + p2[i]) << 2);

		fallthrough;

	case ONE_PT_CALIB2:

		base = (qfprom_cdata[0] & MDM9607_BASE0_MASK);

		p1[0] = (qfprom_cdata[0] & MDM9607_S0_P1_MASK) >> MDM9607_S0_P1_SHIFT;

		p1[1] = (qfprom_cdata[0] & MDM9607_S1_P1_MASK) >> MDM9607_S1_P1_SHIFT;

		p1[2] = (qfprom_cdata[1] & MDM9607_S2_P1_MASK) >> MDM9607_S2_P1_SHIFT;

		p1[3] = (qfprom_cdata[1] & MDM9607_S3_P1_MASK) >> MDM9607_S3_P1_SHIFT;

		p1[4] = (qfprom_cdata[2] & MDM9607_S4_P1_MASK) >> MDM9607_S4_P1_SHIFT;

		for (i = 0; i < priv->num_sensors; i++)

			p1[i] = ((base + p1[i]) << 2);

		break;

	default:

		for (i = 0; i < priv->num_sensors; i++) {

			p1[i] = 500;

			p2[i] = 780;

		}

		break;

	}



	compute_intercept_slope(priv, p1, p2, mode);

	kfree(qfprom_cdata);



	return 0;

}



/* v0.1: 8916, 8939, 8974, 9607 */



static struct tsens_features tsens_v0_1_feat = {

	.ver_major	= VER_0_1,
@@ -540,3 +622,17 @@ struct tsens_plat_data data_8974 = { 
	.feat		= &tsens_v0_1_feat,

	.fields	= tsens_v0_1_regfields,

};



static const struct tsens_ops ops_9607 = {

	.init		= init_common,

	.calibrate	= calibrate_9607,

	.get_temp	= get_temp_common,

};



struct tsens_plat_data data_9607 = {

	.num_sensors	= 5,

	.ops		= &ops_9607,

	.hw_ids		= (unsigned int []){ 0, 1, 2, 3, 4 },

	.feat		= &tsens_v0_1_feat,

	.fields	= tsens_v0_1_regfields,

};

drivers/thermal/qcom/tsens.c

+3 −0
Original line number Diff line number Diff line
@@ -897,6 +897,9 @@ static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume); 


static const struct of_device_id tsens_table[] = {

	{

		.compatible = "qcom,mdm9607-tsens",

		.data = &data_9607,

	}, {

		.compatible = "qcom,msm8916-tsens",

		.data = &data_8916,

	}, {

drivers/thermal/qcom/tsens.h

+1 −1
Original line number Diff line number Diff line
@@ -585,7 +585,7 @@ int get_temp_common(const struct tsens_sensor *s, int *temp); 
extern struct tsens_plat_data data_8960;



/* TSENS v0.1 targets */

extern struct tsens_plat_data data_8916, data_8939, data_8974;

extern struct tsens_plat_data data_8916, data_8939, data_8974, data_9607;



/* TSENS v1 targets */

extern struct tsens_plat_data data_tsens_v1, data_8976;