target/linux/ipq807x/patches-6.1/0128-cpufreq-qcom-nvmem-add-support-for-IPQ8074.patch

   1 From 11592aa862e67f4477dee7e94d5c8244d893de1b Mon Sep 17 00:00:00 2001
   2 From: Robert Marko <robimarko@gmail.com>
   3 Date: Sat, 31 Dec 2022 13:03:41 +0100
   4 Subject: [PATCH] cpufreq: qcom-nvmem: add support for IPQ8074
   5
   6 IPQ8074 comes in 2 families:
   7 * IPQ8070A/IPQ8071A (Acorn) up to 1.4GHz
   8 * IPQ8072A/IPQ8074A/IPQ8076A/IPQ8078A (Hawkeye) up to 2.2GHz
   9
  10 So, in order to be able to share one OPP table lets add support for IPQ8074
  11 family based of SMEM SoC ID-s as speedbin fuse is always 0 on IPQ8074.
  12
  13 IPQ8074 compatible is blacklisted from DT platdev as the cpufreq device
  14 will get created by NVMEM CPUFreq driver.
  15
  16 Signed-off-by: Robert Marko <robimarko@gmail.com>
  17 ---
  18 Changes in v2:
  19 * Print an error if SMEM ID is not part of the IPQ8074 family
  20 and restrict the speed to Acorn variant (1.4GHz)
  21 ---
  22  drivers/cpufreq/cpufreq-dt-platdev.c |  1 +
  23  drivers/cpufreq/qcom-cpufreq-nvmem.c | 43 ++++++++++++++++++++++++++++
  24  2 files changed, 44 insertions(+)
  25
  26 --- a/drivers/cpufreq/cpufreq-dt-platdev.c
  27 +++ b/drivers/cpufreq/cpufreq-dt-platdev.c
  28 @@ -164,6 +164,7 @@ static const struct of_device_id blockli
  29         { .compatible = "ti,omap3", },
  30
  31         { .compatible = "qcom,ipq8064", },
  32 +       { .compatible = "qcom,ipq8074", },
  33         { .compatible = "qcom,apq8064", },
  34         { .compatible = "qcom,msm8974", },
  35         { .compatible = "qcom,msm8960", },
  36 --- a/drivers/cpufreq/qcom-cpufreq-nvmem.c
  37 +++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c
  38 @@ -31,6 +31,9 @@
  39
  40  #include <dt-bindings/arm/qcom,ids.h>
  41
  42 +#define IPQ8074_HAWKEYE_VERSION                BIT(0)
  43 +#define IPQ8074_ACORN_VERSION          BIT(1)
  44 +
  45  struct qcom_cpufreq_drv;
  46
  47  struct qcom_cpufreq_match_data {
  48 @@ -204,6 +207,41 @@ len_error:
  49         return ret;
  50  }
  51
  52 +static int qcom_cpufreq_ipq8074_name_version(struct device *cpu_dev,
  53 +                                            struct nvmem_cell *speedbin_nvmem,
  54 +                                            char **pvs_name,
  55 +                                            struct qcom_cpufreq_drv *drv)
  56 +{
  57 +       u32 msm_id;
  58 +       int ret;
  59 +       *pvs_name = NULL;
  60 +
  61 +       ret = qcom_smem_get_soc_id(&msm_id);
  62 +       if (ret)
  63 +               return ret;
  64 +
  65 +       switch (msm_id) {
  66 +       case QCOM_ID_IPQ8070A:
  67 +       case QCOM_ID_IPQ8071A:
  68 +               drv->versions = IPQ8074_ACORN_VERSION;
  69 +               break;
  70 +       case QCOM_ID_IPQ8072A:
  71 +       case QCOM_ID_IPQ8074A:
  72 +       case QCOM_ID_IPQ8076A:
  73 +       case QCOM_ID_IPQ8078A:
  74 +               drv->versions = IPQ8074_HAWKEYE_VERSION;
  75 +               break;
  76 +       default:
  77 +               dev_err(cpu_dev,
  78 +                       "SoC ID %u is not part of IPQ8074 family, limiting to 1.4GHz!\n",
  79 +                       msm_id);
  80 +               drv->versions = IPQ8074_ACORN_VERSION;
  81 +               break;
  82 +       }
  83 +
  84 +       return 0;
  85 +}
  86 +
  87  static const struct qcom_cpufreq_match_data match_data_kryo = {
  88         .get_version = qcom_cpufreq_kryo_name_version,
  89  };
  90 @@ -218,6 +256,10 @@ static const struct qcom_cpufreq_match_d
  91         .genpd_names = qcs404_genpd_names,
  92  };
  93
  94 +static const struct qcom_cpufreq_match_data match_data_ipq8074 = {
  95 +       .get_version = qcom_cpufreq_ipq8074_name_version,
  96 +};
  97 +
  98  static int qcom_cpufreq_probe(struct platform_device *pdev)
  99  {
 100         struct qcom_cpufreq_drv *drv;
 101 @@ -363,6 +405,7 @@ static const struct of_device_id qcom_cp
 102         { .compatible = "qcom,msm8996", .data = &match_data_kryo },
 103         { .compatible = "qcom,qcs404", .data = &match_data_qcs404 },
 104         { .compatible = "qcom,ipq8064", .data = &match_data_krait },
 105 +       { .compatible = "qcom,ipq8074", .data = &match_data_ipq8074 },
 106         { .compatible = "qcom,apq8064", .data = &match_data_krait },
 107         { .compatible = "qcom,msm8974", .data = &match_data_krait },
 108         { .compatible = "qcom,msm8960", .data = &match_data_krait },