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 55 static const struct mtk_gate_regs audio0_cg_regs = { 56 .set_ofs = 0x0, 57 .clr_ofs = 0x0, 58 .sta_ofs = 0x0, 59 }; 60 61 static const struct mtk_gate_regs audio1_cg_regs = { 62 .set_ofs = 0x10, 63 .clr_ofs = 0x10, 64 .sta_ofs = 0x10, 65 }; 66 67 static const struct mtk_gate_regs audio2_cg_regs = { 68 .set_ofs = 0x14, 69 .clr_ofs = 0x14, 70 .sta_ofs = 0x14, 71 }; 72 73 static const struct mtk_gate_regs audio3_cg_regs = { 74 .set_ofs = 0x634, 75 .clr_ofs = 0x634, 76 .sta_ofs = 0x634, 77 }; 78 79 static 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 }; 132 133 static int clk_mt7622_audiosys_init(struct platform_device *pdev) 134 { 135 struct clk_hw_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_hw_provider(node, of_clk_hw_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; 158 159 err_plat_populate: 160 of_clk_del_provider(node); 161 err_clk_provider: 162 return r; 163 } 164 165 static 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 }; 173 174 static 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 } 191 192 static 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 }; 199 200 builtin_platform_driver(clk_mt7622_aud_drv); 201