linux/drivers/clk/mediatek/clk-mt7622-aud.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Copyright (c) 2017 MediaTek Inc.
   4 * Author: Chen Zhong <chen.zhong@mediatek.com>
   5 *         Sean Wang <sean.wang@mediatek.com>
   6 */
   7
   8#include <linux/clk-provider.h>
   9#include <linux/of.h>
  10#include <linux/of_address.h>
  11#include <linux/of_device.h>
  12#include <linux/platform_device.h>
  13
  14#include "clk-mtk.h"
  15#include "clk-gate.h"
  16
  17#include <dt-bindings/clock/mt7622-clk.h>
  18
  19#define GATE_AUDIO0(_id, _name, _parent, _shift) {      \
  20                .id = _id,                              \
  21                .name = _name,                          \
  22                .parent_name = _parent,                 \
  23                .regs = &audio0_cg_regs,                        \
  24                .shift = _shift,                        \
  25                .ops = &mtk_clk_gate_ops_no_setclr,     \
  26        }
  27
  28#define GATE_AUDIO1(_id, _name, _parent, _shift) {      \
  29                .id = _id,                              \
  30                .name = _name,                          \
  31                .parent_name = _parent,                 \
  32                .regs = &audio1_cg_regs,                        \
  33                .shift = _shift,                        \
  34                .ops = &mtk_clk_gate_ops_no_setclr,     \
  35        }
  36
  37#define GATE_AUDIO2(_id, _name, _parent, _shift) {      \
  38                .id = _id,                              \
  39                .name = _name,                          \
  40                .parent_name = _parent,                 \
  41                .regs = &audio2_cg_regs,                        \
  42                .shift = _shift,                        \
  43                .ops = &mtk_clk_gate_ops_no_setclr,     \
  44        }
  45
  46#define GATE_AUDIO3(_id, _name, _parent, _shift) {      \
  47                .id = _id,                              \
  48                .name = _name,                          \
  49                .parent_name = _parent,                 \
  50                .regs = &audio3_cg_regs,                        \
  51                .shift = _shift,                        \
  52                .ops = &mtk_clk_gate_ops_no_setclr,     \
  53        }
  54
  55static const struct mtk_gate_regs audio0_cg_regs = {
  56        .set_ofs = 0x0,
  57        .clr_ofs = 0x0,
  58        .sta_ofs = 0x0,
  59};
  60
  61static const struct mtk_gate_regs audio1_cg_regs = {
  62        .set_ofs = 0x10,
  63        .clr_ofs = 0x10,
  64        .sta_ofs = 0x10,
  65};
  66
  67static const struct mtk_gate_regs audio2_cg_regs = {
  68        .set_ofs = 0x14,
  69        .clr_ofs = 0x14,
  70        .sta_ofs = 0x14,
  71};
  72
  73static const struct mtk_gate_regs audio3_cg_regs = {
  74        .set_ofs = 0x634,
  75        .clr_ofs = 0x634,
  76        .sta_ofs = 0x634,
  77};
  78
  79static const struct mtk_gate audio_clks[] = {
  80        /* AUDIO0 */
  81        GATE_AUDIO0(CLK_AUDIO_AFE, "audio_afe", "rtc", 2),
  82        GATE_AUDIO0(CLK_AUDIO_HDMI, "audio_hdmi", "apll1_ck_sel", 20),
  83        GATE_AUDIO0(CLK_AUDIO_SPDF, "audio_spdf", "apll1_ck_sel", 21),
  84        GATE_AUDIO0(CLK_AUDIO_APLL, "audio_apll", "apll1_ck_sel", 23),
  85        /* AUDIO1 */
  86        GATE_AUDIO1(CLK_AUDIO_I2SIN1, "audio_i2sin1", "a1sys_hp_sel", 0),
  87        GATE_AUDIO1(CLK_AUDIO_I2SIN2, "audio_i2sin2", "a1sys_hp_sel", 1),
  88        GATE_AUDIO1(CLK_AUDIO_I2SIN3, "audio_i2sin3", "a1sys_hp_sel", 2),
  89        GATE_AUDIO1(CLK_AUDIO_I2SIN4, "audio_i2sin4", "a1sys_hp_sel", 3),
  90        GATE_AUDIO1(CLK_AUDIO_I2SO1, "audio_i2so1", "a1sys_hp_sel", 6),
  91        GATE_AUDIO1(CLK_AUDIO_I2SO2, "audio_i2so2", "a1sys_hp_sel", 7),
  92        GATE_AUDIO1(CLK_AUDIO_I2SO3, "audio_i2so3", "a1sys_hp_sel", 8),
  93        GATE_AUDIO1(CLK_AUDIO_I2SO4, "audio_i2so4", "a1sys_hp_sel", 9),
  94        GATE_AUDIO1(CLK_AUDIO_ASRCI1, "audio_asrci1", "asm_h_sel", 12),
  95        GATE_AUDIO1(CLK_AUDIO_ASRCI2, "audio_asrci2", "asm_h_sel", 13),
  96        GATE_AUDIO1(CLK_AUDIO_ASRCO1, "audio_asrco1", "asm_h_sel", 14),
  97        GATE_AUDIO1(CLK_AUDIO_ASRCO2, "audio_asrco2", "asm_h_sel", 15),
  98        GATE_AUDIO1(CLK_AUDIO_INTDIR, "audio_intdir", "intdir_sel", 20),
  99        GATE_AUDIO1(CLK_AUDIO_A1SYS, "audio_a1sys", "a1sys_hp_sel", 21),
 100        GATE_AUDIO1(CLK_AUDIO_A2SYS, "audio_a2sys", "a2sys_hp_sel", 22),
 101        GATE_AUDIO1(CLK_AUDIO_AFE_CONN, "audio_afe_conn", "a1sys_hp_sel", 23),
 102        /* AUDIO2 */
 103        GATE_AUDIO2(CLK_AUDIO_UL1, "audio_ul1", "a1sys_hp_sel", 0),
 104        GATE_AUDIO2(CLK_AUDIO_UL2, "audio_ul2", "a1sys_hp_sel", 1),
 105        GATE_AUDIO2(CLK_AUDIO_UL3, "audio_ul3", "a1sys_hp_sel", 2),
 106        GATE_AUDIO2(CLK_AUDIO_UL4, "audio_ul4", "a1sys_hp_sel", 3),
 107        GATE_AUDIO2(CLK_AUDIO_UL5, "audio_ul5", "a1sys_hp_sel", 4),
 108        GATE_AUDIO2(CLK_AUDIO_UL6, "audio_ul6", "a1sys_hp_sel", 5),
 109        GATE_AUDIO2(CLK_AUDIO_DL1, "audio_dl1", "a1sys_hp_sel", 6),
 110        GATE_AUDIO2(CLK_AUDIO_DL2, "audio_dl2", "a1sys_hp_sel", 7),
 111        GATE_AUDIO2(CLK_AUDIO_DL3, "audio_dl3", "a1sys_hp_sel", 8),
 112        GATE_AUDIO2(CLK_AUDIO_DL4, "audio_dl4", "a1sys_hp_sel", 9),
 113        GATE_AUDIO2(CLK_AUDIO_DL5, "audio_dl5", "a1sys_hp_sel", 10),
 114        GATE_AUDIO2(CLK_AUDIO_DL6, "audio_dl6", "a1sys_hp_sel", 11),
 115        GATE_AUDIO2(CLK_AUDIO_DLMCH, "audio_dlmch", "a1sys_hp_sel", 12),
 116        GATE_AUDIO2(CLK_AUDIO_ARB1, "audio_arb1", "a1sys_hp_sel", 13),
 117        GATE_AUDIO2(CLK_AUDIO_AWB, "audio_awb", "a1sys_hp_sel", 14),
 118        GATE_AUDIO2(CLK_AUDIO_AWB2, "audio_awb2", "a1sys_hp_sel", 15),
 119        GATE_AUDIO2(CLK_AUDIO_DAI, "audio_dai", "a1sys_hp_sel", 16),
 120        GATE_AUDIO2(CLK_AUDIO_MOD, "audio_mod", "a1sys_hp_sel", 17),
 121        /* AUDIO3 */
 122        GATE_AUDIO3(CLK_AUDIO_ASRCI3, "audio_asrci3", "asm_h_sel", 2),
 123        GATE_AUDIO3(CLK_AUDIO_ASRCI4, "audio_asrci4", "asm_h_sel", 3),
 124        GATE_AUDIO3(CLK_AUDIO_ASRCO3, "audio_asrco3", "asm_h_sel", 6),
 125        GATE_AUDIO3(CLK_AUDIO_ASRCO4, "audio_asrco4", "asm_h_sel", 7),
 126        GATE_AUDIO3(CLK_AUDIO_MEM_ASRC1, "audio_mem_asrc1", "asm_h_sel", 10),
 127        GATE_AUDIO3(CLK_AUDIO_MEM_ASRC2, "audio_mem_asrc2", "asm_h_sel", 11),
 128        GATE_AUDIO3(CLK_AUDIO_MEM_ASRC3, "audio_mem_asrc3", "asm_h_sel", 12),
 129        GATE_AUDIO3(CLK_AUDIO_MEM_ASRC4, "audio_mem_asrc4", "asm_h_sel", 13),
 130        GATE_AUDIO3(CLK_AUDIO_MEM_ASRC5, "audio_mem_asrc5", "asm_h_sel", 14),
 131};
 132
 133static int clk_mt7622_audiosys_init(struct platform_device *pdev)
 134{
 135        struct clk_onecell_data *clk_data;
 136        struct device_node *node = pdev->dev.of_node;
 137        int r;
 138
 139        clk_data = mtk_alloc_clk_data(CLK_AUDIO_NR_CLK);
 140
 141        mtk_clk_register_gates(node, audio_clks, ARRAY_SIZE(audio_clks),
 142                               clk_data);
 143
 144        r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
 145        if (r) {
 146                dev_err(&pdev->dev,
 147                        "could not register clock provider: %s: %d\n",
 148                        pdev->name, r);
 149
 150                goto err_clk_provider;
 151        }
 152
 153        r = devm_of_platform_populate(&pdev->dev);
 154        if (r)
 155                goto err_plat_populate;
 156
 157        return 0;
 158
 159err_plat_populate:
 160        of_clk_del_provider(node);
 161err_clk_provider:
 162        return r;
 163}
 164
 165static const struct of_device_id of_match_clk_mt7622_aud[] = {
 166        {
 167                .compatible = "mediatek,mt7622-audsys",
 168                .data = clk_mt7622_audiosys_init,
 169        }, {
 170                /* sentinel */
 171        }
 172};
 173
 174static int clk_mt7622_aud_probe(struct platform_device *pdev)
 175{
 176        int (*clk_init)(struct platform_device *);
 177        int r;
 178
 179        clk_init = of_device_get_match_data(&pdev->dev);
 180        if (!clk_init)
 181                return -EINVAL;
 182
 183        r = clk_init(pdev);
 184        if (r)
 185                dev_err(&pdev->dev,
 186                        "could not register clock provider: %s: %d\n",
 187                        pdev->name, r);
 188
 189        return r;
 190}
 191
 192static struct platform_driver clk_mt7622_aud_drv = {
 193        .probe = clk_mt7622_aud_probe,
 194        .driver = {
 195                .name = "clk-mt7622-aud",
 196                .of_match_table = of_match_clk_mt7622_aud,
 197        },
 198};
 199
 200builtin_platform_driver(clk_mt7622_aud_drv);
 201