drivers/clk/mediatek/clk-mt6779-aud.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2019 MediaTek Inc.
   4  * Author: Wendell Lin <[email protected]>
   5  */
   6
   7 #include <linux/module.h>
   8 #include <linux/clk-provider.h>
   9 #include <linux/mod_devicetable.h>
  10 #include <linux/platform_device.h>
  11
  12 #include "clk-mtk.h"
  13 #include "clk-gate.h"
  14
  15 #include <dt-bindings/clock/mt6779-clk.h>
  16
  17 static const struct mtk_gate_regs audio0_cg_regs = {
  18         .set_ofs = 0x0,
  19         .clr_ofs = 0x0,
  20         .sta_ofs = 0x0,
  21 };
  22
  23 static const struct mtk_gate_regs audio1_cg_regs = {
  24         .set_ofs = 0x4,
  25         .clr_ofs = 0x4,
  26         .sta_ofs = 0x4,
  27 };
  28
  29 #define GATE_AUDIO0(_id, _name, _parent, _shift)                \
  30         GATE_MTK(_id, _name, _parent, &audio0_cg_regs, _shift,  \
  31                 &mtk_clk_gate_ops_no_setclr)
  32 #define GATE_AUDIO1(_id, _name, _parent, _shift)                \
  33         GATE_MTK(_id, _name, _parent, &audio1_cg_regs, _shift,  \
  34                 &mtk_clk_gate_ops_no_setclr)
  35
  36 static const struct mtk_gate audio_clks[] = {
  37         /* AUDIO0 */
  38         GATE_AUDIO0(CLK_AUD_AFE, "aud_afe", "audio_sel", 2),
  39         GATE_AUDIO0(CLK_AUD_22M, "aud_22m", "aud_eng1_sel", 8),
  40         GATE_AUDIO0(CLK_AUD_24M, "aud_24m", "aud_eng2_sel", 9),
  41         GATE_AUDIO0(CLK_AUD_APLL2_TUNER, "aud_apll2_tuner",
  42                     "aud_eng2_sel", 18),
  43         GATE_AUDIO0(CLK_AUD_APLL_TUNER, "aud_apll_tuner",
  44                     "aud_eng1_sel", 19),
  45         GATE_AUDIO0(CLK_AUD_TDM, "aud_tdm", "aud_eng1_sel", 20),
  46         GATE_AUDIO0(CLK_AUD_ADC, "aud_adc", "audio_sel", 24),
  47         GATE_AUDIO0(CLK_AUD_DAC, "aud_dac", "audio_sel", 25),
  48         GATE_AUDIO0(CLK_AUD_DAC_PREDIS, "aud_dac_predis",
  49                     "audio_sel", 26),
  50         GATE_AUDIO0(CLK_AUD_TML, "aud_tml", "audio_sel", 27),
  51         GATE_AUDIO0(CLK_AUD_NLE, "aud_nle", "audio_sel", 28),
  52         /* AUDIO1 */
  53         GATE_AUDIO1(CLK_AUD_I2S1_BCLK_SW, "aud_i2s1_bclk",
  54                     "audio_sel", 4),
  55         GATE_AUDIO1(CLK_AUD_I2S2_BCLK_SW, "aud_i2s2_bclk",
  56                     "audio_sel", 5),
  57         GATE_AUDIO1(CLK_AUD_I2S3_BCLK_SW, "aud_i2s3_bclk",
  58                     "audio_sel", 6),
  59         GATE_AUDIO1(CLK_AUD_I2S4_BCLK_SW, "aud_i2s4_bclk",
  60                     "audio_sel", 7),
  61         GATE_AUDIO1(CLK_AUD_I2S5_BCLK_SW, "aud_i2s5_bclk",
  62                     "audio_sel", 8),
  63         GATE_AUDIO1(CLK_AUD_CONN_I2S_ASRC, "aud_conn_i2s",
  64                     "audio_sel", 12),
  65         GATE_AUDIO1(CLK_AUD_GENERAL1_ASRC, "aud_general1",
  66                     "audio_sel", 13),
  67         GATE_AUDIO1(CLK_AUD_GENERAL2_ASRC, "aud_general2",
  68                     "audio_sel", 14),
  69         GATE_AUDIO1(CLK_AUD_DAC_HIRES, "aud_dac_hires",
  70                     "audio_h_sel", 15),
  71         GATE_AUDIO1(CLK_AUD_ADC_HIRES, "aud_adc_hires",
  72                     "audio_h_sel", 16),
  73         GATE_AUDIO1(CLK_AUD_ADC_HIRES_TML, "aud_adc_hires_tml",
  74                     "audio_h_sel", 17),
  75         GATE_AUDIO1(CLK_AUD_PDN_ADDA6_ADC, "aud_pdn_adda6_adc",
  76                     "audio_sel", 20),
  77         GATE_AUDIO1(CLK_AUD_ADDA6_ADC_HIRES, "aud_adda6_adc_hires",
  78                     "audio_h_sel",
  79                     21),
  80         GATE_AUDIO1(CLK_AUD_3RD_DAC, "aud_3rd_dac", "audio_sel",
  81                     28),
  82         GATE_AUDIO1(CLK_AUD_3RD_DAC_PREDIS, "aud_3rd_dac_predis",
  83                     "audio_sel", 29),
  84         GATE_AUDIO1(CLK_AUD_3RD_DAC_TML, "aud_3rd_dac_tml",
  85                     "audio_sel", 30),
  86         GATE_AUDIO1(CLK_AUD_3RD_DAC_HIRES, "aud_3rd_dac_hires",
  87                     "audio_h_sel", 31),
  88 };
  89
  90 static const struct mtk_clk_desc audio_desc = {
  91         .clks = audio_clks,
  92         .num_clks = ARRAY_SIZE(audio_clks),
  93 };
  94
  95 static const struct of_device_id of_match_clk_mt6779_aud[] = {
  96         {
  97                 .compatible = "mediatek,mt6779-audio",
  98                 .data = &audio_desc,
  99         }, {
 100                 /* sentinel */
 101         }
 102 };
 103 MODULE_DEVICE_TABLE(of, of_match_clk_mt6779_aud);
 104
 105 static struct platform_driver clk_mt6779_aud_drv = {
 106         .probe = mtk_clk_simple_probe,
 107         .remove = mtk_clk_simple_remove,
 108         .driver = {
 109                 .name = "clk-mt6779-aud",
 110                 .of_match_table = of_match_clk_mt6779_aud,
 111         },
 112 };
 113 module_platform_driver(clk_mt6779_aud_drv);
 114
 115 MODULE_DESCRIPTION("MediaTek MT6779 audio clocks driver");
 116 MODULE_LICENSE("GPL");