drivers/clk/qcom/lpasscc-sc8280xp.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2022, Linaro Limited
   4  */
   5
   6 #include <linux/clk-provider.h>
   7 #include <linux/err.h>
   8 #include <linux/kernel.h>
   9 #include <linux/mod_devicetable.h>
  10 #include <linux/module.h>
  11 #include <linux/of.h>
  12 #include <linux/platform_device.h>
  13 #include <linux/regmap.h>
  14
  15 #include <dt-bindings/clock/qcom,sc8280xp-lpasscc.h>
  16
  17 #include "common.h"
  18 #include "reset.h"
  19
  20 static const struct qcom_reset_map lpass_audiocc_sc8280xp_resets[] = {
  21         [LPASS_AUDIO_SWR_RX_CGCR] =  { 0xa0, 1 },
  22         [LPASS_AUDIO_SWR_WSA_CGCR] = { 0xb0, 1 },
  23         [LPASS_AUDIO_SWR_WSA2_CGCR] =  { 0xd8, 1 },
  24 };
  25
  26 static const struct regmap_config lpass_audiocc_sc8280xp_regmap_config = {
  27         .reg_bits = 32,
  28         .reg_stride = 4,
  29         .val_bits = 32,
  30         .name = "lpass-audio-csr",
  31         .max_register = 0x1000,
  32 };
  33
  34 static const struct qcom_cc_desc lpass_audiocc_sc8280xp_reset_desc = {
  35         .config = &lpass_audiocc_sc8280xp_regmap_config,
  36         .resets = lpass_audiocc_sc8280xp_resets,
  37         .num_resets = ARRAY_SIZE(lpass_audiocc_sc8280xp_resets),
  38 };
  39
  40 static const struct qcom_reset_map lpasscc_sc8280xp_resets[] = {
  41         [LPASS_AUDIO_SWR_TX_CGCR] = { 0xc010, 1 },
  42 };
  43
  44 static const struct regmap_config lpasscc_sc8280xp_regmap_config = {
  45         .reg_bits = 32,
  46         .reg_stride = 4,
  47         .val_bits = 32,
  48         .name = "lpass-tcsr",
  49         .max_register = 0x12000,
  50 };
  51
  52 static const struct qcom_cc_desc lpasscc_sc8280xp_reset_desc = {
  53         .config = &lpasscc_sc8280xp_regmap_config,
  54         .resets = lpasscc_sc8280xp_resets,
  55         .num_resets = ARRAY_SIZE(lpasscc_sc8280xp_resets),
  56 };
  57
  58 static const struct of_device_id lpasscc_sc8280xp_match_table[] = {
  59         {
  60                 .compatible = "qcom,sc8280xp-lpassaudiocc",
  61                 .data = &lpass_audiocc_sc8280xp_reset_desc,
  62         }, {
  63                 .compatible = "qcom,sc8280xp-lpasscc",
  64                 .data = &lpasscc_sc8280xp_reset_desc,
  65         },
  66         { }
  67 };
  68 MODULE_DEVICE_TABLE(of, lpasscc_sc8280xp_match_table);
  69
  70 static int lpasscc_sc8280xp_probe(struct platform_device *pdev)
  71 {
  72         const struct qcom_cc_desc *desc = of_device_get_match_data(&pdev->dev);
  73
  74         return qcom_cc_probe_by_index(pdev, 0, desc);
  75 }
  76
  77 static struct platform_driver lpasscc_sc8280xp_driver = {
  78         .probe = lpasscc_sc8280xp_probe,
  79         .driver = {
  80                 .name = "lpasscc-sc8280xp",
  81                 .of_match_table = lpasscc_sc8280xp_match_table,
  82         },
  83 };
  84
  85 module_platform_driver(lpasscc_sc8280xp_driver);
  86
  87 MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org>");
  88 MODULE_DESCRIPTION("QTI LPASSCC SC8280XP Driver");
  89 MODULE_LICENSE("GPL");