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From 0c309f4e86c827cd5fd2eb0e36d5d1f19927380d Mon Sep 17 00:00:00 2001
From: Caleb Connolly <caleb.connolly@linaro.org>
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 <caleb.connolly@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220429220904.137297-4-caleb.connolly@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
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;
};
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