1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // Copyright (c) 2018 MediaTek Inc. 4 // Author: Weiyi Lu <weiyi.lu@mediatek.com> 5 6 #include <linux/clk-provider.h> 7 #include <linux/of_platform.h> 8 #include <linux/platform_device.h> 9 10 #include "clk-mtk.h" 11 #include "clk-gate.h" 12 13 #include <dt-bindings/clock/mt8183-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 GATE_MTK(_id, _name, _parent, &audio0_cg_regs, _shift, \ 29 &mtk_clk_gate_ops_no_setclr) 30 31 #define GATE_AUDIO1(_id, _name, _parent, _shift) \ 32 GATE_MTK(_id, _name, _parent, &audio1_cg_regs, _shift, \ 33 &mtk_clk_gate_ops_no_setclr) 34 35 static const struct mtk_gate audio_clks[] = { 36 /* AUDIO0 */ 37 GATE_AUDIO0(CLK_AUDIO_AFE, "aud_afe", "audio_sel", 38 2), 39 GATE_AUDIO0(CLK_AUDIO_22M, "aud_22m", "aud_eng1_sel", 40 8), 41 GATE_AUDIO0(CLK_AUDIO_24M, "aud_24m", "aud_eng2_sel", 42 9), 43 GATE_AUDIO0(CLK_AUDIO_APLL2_TUNER, "aud_apll2_tuner", "aud_eng2_sel", 44 18), 45 GATE_AUDIO0(CLK_AUDIO_APLL_TUNER, "aud_apll_tuner", "aud_eng1_sel", 46 19), 47 GATE_AUDIO0(CLK_AUDIO_TDM, "aud_tdm", "apll12_divb", 48 20), 49 GATE_AUDIO0(CLK_AUDIO_ADC, "aud_adc", "audio_sel", 50 24), 51 GATE_AUDIO0(CLK_AUDIO_DAC, "aud_dac", "audio_sel", 52 25), 53 GATE_AUDIO0(CLK_AUDIO_DAC_PREDIS, "aud_dac_predis", "audio_sel", 54 26), 55 GATE_AUDIO0(CLK_AUDIO_TML, "aud_tml", "audio_sel", 56 27), 57 /* AUDIO1 */ 58 GATE_AUDIO1(CLK_AUDIO_I2S1, "aud_i2s1", "audio_sel", 59 4), 60 GATE_AUDIO1(CLK_AUDIO_I2S2, "aud_i2s2", "audio_sel", 61 5), 62 GATE_AUDIO1(CLK_AUDIO_I2S3, "aud_i2s3", "audio_sel", 63 6), 64 GATE_AUDIO1(CLK_AUDIO_I2S4, "aud_i2s4", "audio_sel", 65 7), 66 GATE_AUDIO1(CLK_AUDIO_PDN_ADDA6_ADC, "aud_pdn_adda6_adc", "audio_sel", 67 20), 68 }; 69 70 static const struct mtk_clk_desc audio_desc = { 71 .clks = audio_clks, 72 .num_clks = ARRAY_SIZE(audio_clks), 73 }; 74 75 static int clk_mt8183_audio_probe(struct platform_device *pdev) 76 { 77 int r; 78 79 r = mtk_clk_simple_probe(pdev); 80 if (r) 81 return r; 82 83 r = devm_of_platform_populate(&pdev->dev); 84 if (r) 85 mtk_clk_simple_remove(pdev); 86 87 return r; 88 } 89 90 static void clk_mt8183_audio_remove(struct platform_device *pdev) 91 { 92 of_platform_depopulate(&pdev->dev); 93 mtk_clk_simple_remove(pdev); 94 } 95 96 static const struct of_device_id of_match_clk_mt8183_audio[] = { 97 { .compatible = "mediatek,mt8183-audiosys", .data = &audio_desc }, 98 { /* sentinel */ } 99 }; 100 MODULE_DEVICE_TABLE(of, of_match_clk_mt8183_audio); 101 102 static struct platform_driver clk_mt8183_audio_drv = { 103 .probe = clk_mt8183_audio_probe, 104 .remove_new = clk_mt8183_audio_remove, 105 .driver = { 106 .name = "clk-mt8183-audio", 107 .of_match_table = of_match_clk_mt8183_audio, 108 }, 109 }; 110 module_platform_driver(clk_mt8183_audio_drv); 111 112 MODULE_DESCRIPTION("MediaTek MT8183 audio clocks driver"); 113 MODULE_LICENSE("GPL"); 114