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 <wendell.lin@mediatek.com>
   5  */
   6
   7 #include <linux/clk-provider.h>
   8 #include <linux/of.h>
   9 #include <linux/of_address.h>
  10 #include <linux/of_device.h>
  11 #include <linux/platform_device.h>
  12
  13 #include "clk-mtk.h"
  14 #include "clk-gate.h"
  15
  16 #include <dt-bindings/clock/mt6779-clk.h>
  17
  18 static const struct mtk_gate_regs audio0_cg_regs = {
  19         .set_ofs = 0x0,
  20         .clr_ofs = 0x0,
  21         .sta_ofs = 0x0,
  22 };
  23
  24 static const struct mtk_gate_regs audio1_cg_regs = {
  25         .set_ofs = 0x4,
  26         .clr_ofs = 0x4,
  27         .sta_ofs = 0x4,
  28 };
  29
  30 #define GATE_AUDIO0(_id, _name, _parent, _shift)                \
  31         GATE_MTK(_id, _name, _parent, &audio0_cg_regs, _shift,  \
  32                 &mtk_clk_gate_ops_no_setclr)
  33 #define GATE_AUDIO1(_id, _name, _parent, _shift)                \
  34         GATE_MTK(_id, _name, _parent, &audio1_cg_regs, _shift,  \
  35                 &mtk_clk_gate_ops_no_setclr)
  36
  37 static const struct mtk_gate audio_clks[] = {
  38         /* AUDIO0 */
  39         GATE_AUDIO0(CLK_AUD_AFE, "aud_afe", "audio_sel", 2),
  40         GATE_AUDIO0(CLK_AUD_22M, "aud_22m", "aud_eng1_sel", 8),
  41         GATE_AUDIO0(CLK_AUD_24M, "aud_24m", "aud_eng2_sel", 9),
  42         GATE_AUDIO0(CLK_AUD_APLL2_TUNER, "aud_apll2_tuner",
  43                     "aud_eng2_sel", 18),
  44         GATE_AUDIO0(CLK_AUD_APLL_TUNER, "aud_apll_tuner",
  45                     "aud_eng1_sel", 19),
  46         GATE_AUDIO0(CLK_AUD_TDM, "aud_tdm", "aud_eng1_sel", 20),
  47         GATE_AUDIO0(CLK_AUD_ADC, "aud_adc", "audio_sel", 24),
  48         GATE_AUDIO0(CLK_AUD_DAC, "aud_dac", "audio_sel", 25),
  49         GATE_AUDIO0(CLK_AUD_DAC_PREDIS, "aud_dac_predis",
  50                     "audio_sel", 26),
  51         GATE_AUDIO0(CLK_AUD_TML, "aud_tml", "audio_sel", 27),
  52         GATE_AUDIO0(CLK_AUD_NLE, "aud_nle", "audio_sel", 28),
  53         /* AUDIO1 */
  54         GATE_AUDIO1(CLK_AUD_I2S1_BCLK_SW, "aud_i2s1_bclk",
  55                     "audio_sel", 4),
  56         GATE_AUDIO1(CLK_AUD_I2S2_BCLK_SW, "aud_i2s2_bclk",
  57                     "audio_sel", 5),
  58         GATE_AUDIO1(CLK_AUD_I2S3_BCLK_SW, "aud_i2s3_bclk",
  59                     "audio_sel", 6),
  60         GATE_AUDIO1(CLK_AUD_I2S4_BCLK_SW, "aud_i2s4_bclk",
  61                     "audio_sel", 7),
  62         GATE_AUDIO1(CLK_AUD_I2S5_BCLK_SW, "aud_i2s5_bclk",
  63                     "audio_sel", 8),
  64         GATE_AUDIO1(CLK_AUD_CONN_I2S_ASRC, "aud_conn_i2s",
  65                     "audio_sel", 12),
  66         GATE_AUDIO1(CLK_AUD_GENERAL1_ASRC, "aud_general1",
  67                     "audio_sel", 13),
  68         GATE_AUDIO1(CLK_AUD_GENERAL2_ASRC, "aud_general2",
  69                     "audio_sel", 14),
  70         GATE_AUDIO1(CLK_AUD_DAC_HIRES, "aud_dac_hires",
  71                     "audio_h_sel", 15),
  72         GATE_AUDIO1(CLK_AUD_ADC_HIRES, "aud_adc_hires",
  73                     "audio_h_sel", 16),
  74         GATE_AUDIO1(CLK_AUD_ADC_HIRES_TML, "aud_adc_hires_tml",
  75                     "audio_h_sel", 17),
  76         GATE_AUDIO1(CLK_AUD_PDN_ADDA6_ADC, "aud_pdn_adda6_adc",
  77                     "audio_sel", 20),
  78         GATE_AUDIO1(CLK_AUD_ADDA6_ADC_HIRES, "aud_adda6_adc_hires",
  79                     "audio_h_sel",
  80                     21),
  81         GATE_AUDIO1(CLK_AUD_3RD_DAC, "aud_3rd_dac", "audio_sel",
  82                     28),
  83         GATE_AUDIO1(CLK_AUD_3RD_DAC_PREDIS, "aud_3rd_dac_predis",
  84                     "audio_sel", 29),
  85         GATE_AUDIO1(CLK_AUD_3RD_DAC_TML, "aud_3rd_dac_tml",
  86                     "audio_sel", 30),
  87         GATE_AUDIO1(CLK_AUD_3RD_DAC_HIRES, "aud_3rd_dac_hires",
  88                     "audio_h_sel", 31),
  89 };
  90
  91 static const struct of_device_id of_match_clk_mt6779_aud[] = {
  92         { .compatible = "mediatek,mt6779-audio", },
  93         {}
  94 };
  95
  96 static int clk_mt6779_aud_probe(struct platform_device *pdev)
  97 {
  98         struct clk_onecell_data *clk_data;
  99         struct device_node *node = pdev->dev.of_node;
 100
 101         clk_data = mtk_alloc_clk_data(CLK_AUD_NR_CLK);
 102
 103         mtk_clk_register_gates(node, audio_clks, ARRAY_SIZE(audio_clks),
 104                                clk_data);
 105
 106         return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
 107 }
 108
 109 static struct platform_driver clk_mt6779_aud_drv = {
 110         .probe = clk_mt6779_aud_probe,
 111         .driver = {
 112                 .name = "clk-mt6779-aud",
 113                 .of_match_table = of_match_clk_mt6779_aud,
 114         },
 115 };
 116
 117 builtin_platform_driver(clk_mt6779_aud_drv);