Commit d23c3c08 authored by Casey Connolly's avatar Casey Connolly Committed by Jonathan Cameron
Browse files

mfd: qcom-spmi-pmic: read fab id on supported PMICs 



The PMI8998 and PM660 expose the fab_id, this is needed by drivers like
the RRADC to calibrate ADC values.

Signed-off-by: default avatarCaleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: default avatarLee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220429220904.137297-4-caleb.connolly@linaro.org


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent e9c11c6e

drivers/mfd/qcom-spmi-pmic.c

+7 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 
#define PMIC_REV4		0x103

#define PMIC_TYPE		0x104

#define PMIC_SUBTYPE		0x105

#define PMIC_FAB_ID		0x1f2



#define PMIC_TYPE_VALUE		0x51
@@ -157,6 +158,12 @@ static int pmic_spmi_load_revid(struct regmap *map, struct device *dev, 
	if (ret < 0)

		return ret;



	if (pmic->subtype == PMI8998_SUBTYPE || pmic->subtype == PM660_SUBTYPE) {

		ret = regmap_read(map, PMIC_FAB_ID, &pmic->fab_id);

		if (ret < 0)

			return ret;

	}



	/*

	 * In early versions of PM8941 and PM8226, the major revision number

	 * started incrementing from 0 (eg 0 = v1.0, 1 = v2.0).

include/soc/qcom/qcom-spmi-pmic.h

+1 −0
Original line number Diff line number Diff line
@@ -52,6 +52,7 @@ struct qcom_spmi_pmic { 
	unsigned int major;

	unsigned int minor;

	unsigned int rev2;

	unsigned int fab_id;

	const char *name;

};