target/linux/ipq807x/patches-5.15/0059-v6.0-mfd-qcom-spmi-pmic-read-fab-id-on-supported-PMICs.patch

   1 From 0c309f4e86c827cd5fd2eb0e36d5d1f19927380d Mon Sep 17 00:00:00 2001
   2 From: Caleb Connolly <caleb.connolly@linaro.org>
   3 Date: Fri, 29 Apr 2022 23:08:58 +0100
   4 Subject: [PATCH] mfd: qcom-spmi-pmic: read fab id on supported PMICs
   5
   6 The PMI8998 and PM660 expose the fab_id, this is needed by drivers like
   7 the RRADC to calibrate ADC values.
   8
   9 Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
  10 Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
  11 Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
  12 Acked-by: Lee Jones <lee.jones@linaro.org>
  13 Link: https://lore.kernel.org/r/20220429220904.137297-4-caleb.connolly@linaro.org
  14 Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
  15 ---
  16  drivers/mfd/qcom-spmi-pmic.c      | 7 +++++++
  17  include/soc/qcom/qcom-spmi-pmic.h | 1 +
  18  2 files changed, 8 insertions(+)
  19
  20 --- a/drivers/mfd/qcom-spmi-pmic.c
  21 +++ b/drivers/mfd/qcom-spmi-pmic.c
  22 @@ -19,6 +19,7 @@
  23  #define PMIC_REV4              0x103
  24  #define PMIC_TYPE              0x104
  25  #define PMIC_SUBTYPE           0x105
  26 +#define PMIC_FAB_ID            0x1f2
  27
  28  #define PMIC_TYPE_VALUE                0x51
  29
  30 @@ -157,6 +158,12 @@ static int pmic_spmi_load_revid(struct r
  31         if (ret < 0)
  32                 return ret;
  33
  34 +       if (pmic->subtype == PMI8998_SUBTYPE || pmic->subtype == PM660_SUBTYPE) {
  35 +               ret = regmap_read(map, PMIC_FAB_ID, &pmic->fab_id);
  36 +               if (ret < 0)
  37 +                       return ret;
  38 +       }
  39 +
  40         /*
  41          * In early versions of PM8941 and PM8226, the major revision number
  42          * started incrementing from 0 (eg 0 = v1.0, 1 = v2.0).
  43 --- a/include/soc/qcom/qcom-spmi-pmic.h
  44 +++ b/include/soc/qcom/qcom-spmi-pmic.h
  45 @@ -52,6 +52,7 @@ struct qcom_spmi_pmic {
  46         unsigned int major;
  47         unsigned int minor;
  48         unsigned int rev2;
  49 +       unsigned int fab_id;
  50         const char *name;
  51  };
  52