drivers/clk/mediatek/clk-mt6765-audio.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2018 MediaTek Inc.
   4  * Author: Owen Chen <owen.chen@mediatek.com>
   5  */
   6
   7 #include <linux/clk-provider.h>
   8 #include <linux/platform_device.h>
   9
  10 #include "clk-mtk.h"
  11 #include "clk-gate.h"
  12
  13 #include <dt-bindings/clock/mt6765-clk.h>
  14
  15 static const struct mtk_gate_regs audio0_cg_regs = {
  16         .set_ofs = 0x0,
  17         .clr_ofs = 0x0,
  18         .sta_ofs = 0x0,
  19 };
  20
  21 static const struct mtk_gate_regs audio1_cg_regs = {
  22         .set_ofs = 0x4,
  23         .clr_ofs = 0x4,
  24         .sta_ofs = 0x4,
  25 };
  26
  27 #define GATE_AUDIO0(_id, _name, _parent, _shift) {      \
  28                 .id = _id,                              \
  29                 .name = _name,                          \
  30                 .parent_name = _parent,                 \
  31                 .regs = &audio0_cg_regs,                \
  32                 .shift = _shift,                        \
  33                 .ops = &mtk_clk_gate_ops_no_setclr,     \
  34         }
  35
  36 #define GATE_AUDIO1(_id, _name, _parent, _shift) {      \
  37                 .id = _id,                              \
  38                 .name = _name,                          \
  39                 .parent_name = _parent,                 \
  40                 .regs = &audio1_cg_regs,                \
  41                 .shift = _shift,                        \
  42                 .ops = &mtk_clk_gate_ops_no_setclr,     \
  43         }
  44
  45 static const struct mtk_gate audio_clks[] = {
  46         /* AUDIO0 */
  47         GATE_AUDIO0(CLK_AUDIO_AFE, "aud_afe", "audio_ck", 2),
  48         GATE_AUDIO0(CLK_AUDIO_22M, "aud_22m", "aud_engen1_ck", 8),
  49         GATE_AUDIO0(CLK_AUDIO_APLL_TUNER, "aud_apll_tuner",
  50                     "aud_engen1_ck", 19),
  51         GATE_AUDIO0(CLK_AUDIO_ADC, "aud_adc", "audio_ck", 24),
  52         GATE_AUDIO0(CLK_AUDIO_DAC, "aud_dac", "audio_ck", 25),
  53         GATE_AUDIO0(CLK_AUDIO_DAC_PREDIS, "aud_dac_predis",
  54                     "audio_ck", 26),
  55         GATE_AUDIO0(CLK_AUDIO_TML, "aud_tml", "audio_ck", 27),
  56         /* AUDIO1 */
  57         GATE_AUDIO1(CLK_AUDIO_I2S1_BCLK, "aud_i2s1_bclk",
  58                     "audio_ck", 4),
  59         GATE_AUDIO1(CLK_AUDIO_I2S2_BCLK, "aud_i2s2_bclk",
  60                     "audio_ck", 5),
  61         GATE_AUDIO1(CLK_AUDIO_I2S3_BCLK, "aud_i2s3_bclk",
  62                     "audio_ck", 6),
  63         GATE_AUDIO1(CLK_AUDIO_I2S4_BCLK, "aud_i2s4_bclk",
  64                     "audio_ck", 7),
  65 };
  66
  67 static const struct mtk_clk_desc audio_desc = {
  68         .clks = audio_clks,
  69         .num_clks = ARRAY_SIZE(audio_clks),
  70 };
  71
  72 static const struct of_device_id of_match_clk_mt6765_audio[] = {
  73         {
  74                 .compatible = "mediatek,mt6765-audsys",
  75                 .data = &audio_desc,
  76         }, {
  77                 /* sentinel */
  78         }
  79 };
  80
  81 static struct platform_driver clk_mt6765_audio_drv = {
  82         .probe = mtk_clk_simple_probe,
  83         .remove = mtk_clk_simple_remove,
  84         .driver = {
  85                 .name = "clk-mt6765-audio",
  86                 .of_match_table = of_match_clk_mt6765_audio,
  87         },
  88 };
  89
  90 builtin_platform_driver(clk_mt6765_audio_drv);