From 0c309f4e86c827cd5fd2eb0e36d5d1f19927380d Mon Sep 17 00:00:00 2001 From: Caleb Connolly Date: Fri, 29 Apr 2022 23:08:58 +0100 Subject: [PATCH] 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: Caleb Connolly Reviewed-by: Dmitry Baryshkov Tested-by: Dmitry Baryshkov Acked-by: Lee Jones Link: https://lore.kernel.org/r/20220429220904.137297-4-caleb.connolly@linaro.org Signed-off-by: Jonathan Cameron --- drivers/mfd/qcom-spmi-pmic.c | 7 +++++++ include/soc/qcom/qcom-spmi-pmic.h | 1 + 2 files changed, 8 insertions(+) --- a/drivers/mfd/qcom-spmi-pmic.c +++ b/drivers/mfd/qcom-spmi-pmic.c @@ -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 r 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). --- a/include/soc/qcom/qcom-spmi-pmic.h +++ b/include/soc/qcom/qcom-spmi-pmic.h @@ -52,6 +52,7 @@ struct qcom_spmi_pmic { unsigned int major; unsigned int minor; unsigned int rev2; + unsigned int fab_id; const char *name; };