1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2019 MediaTek Inc. 4 * Author: James Liao <jamesjj.liao@mediatek.com> 5 * Fabien Parent <fparent@baylibre.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/mt8516-clk.h> 18 19 static const struct mtk_gate_regs aud_cg_regs = { 20 .set_ofs = 0x0, 21 .clr_ofs = 0x0, 22 .sta_ofs = 0x0, 23 }; 24 25 #define GATE_AUD(_id, _name, _parent, _shift) { \ 26 .id = _id, \ 27 .name = _name, \ 28 .parent_name = _parent, \ 29 .regs = &aud_cg_regs, \ 30 .shift = _shift, \ 31 .ops = &mtk_clk_gate_ops_no_setclr, \ 32 } 33 34 static const struct mtk_gate aud_clks[] __initconst = { 35 GATE_AUD(CLK_AUD_AFE, "aud_afe", "clk26m_ck", 2), 36 GATE_AUD(CLK_AUD_I2S, "aud_i2s", "i2s_infra_bck", 6), 37 GATE_AUD(CLK_AUD_22M, "aud_22m", "rg_aud_engen1", 8), 38 GATE_AUD(CLK_AUD_24M, "aud_24m", "rg_aud_engen2", 9), 39 GATE_AUD(CLK_AUD_INTDIR, "aud_intdir", "rg_aud_spdif_in", 15), 40 GATE_AUD(CLK_AUD_APLL2_TUNER, "aud_apll2_tuner", "rg_aud_engen2", 18), 41 GATE_AUD(CLK_AUD_APLL_TUNER, "aud_apll_tuner", "rg_aud_engen1", 19), 42 GATE_AUD(CLK_AUD_HDMI, "aud_hdmi", "apll12_div4", 20), 43 GATE_AUD(CLK_AUD_SPDF, "aud_spdf", "apll12_div6", 21), 44 GATE_AUD(CLK_AUD_ADC, "aud_adc", "aud_afe", 24), 45 GATE_AUD(CLK_AUD_DAC, "aud_dac", "aud_afe", 25), 46 GATE_AUD(CLK_AUD_DAC_PREDIS, "aud_dac_predis", "aud_afe", 26), 47 GATE_AUD(CLK_AUD_TML, "aud_tml", "aud_afe", 27), 48 }; 49 50 static void __init mtk_audsys_init(struct device_node *node) 51 { 52 struct clk_hw_onecell_data *clk_data; 53 int r; 54 55 clk_data = mtk_alloc_clk_data(CLK_AUD_NR_CLK); 56 57 mtk_clk_register_gates(node, aud_clks, ARRAY_SIZE(aud_clks), clk_data); 58 59 r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); 60 if (r) 61 pr_err("%s(): could not register clock provider: %d\n", 62 __func__, r); 63 64 } 65 CLK_OF_DECLARE(mtk_audsys, "mediatek,mt8516-audsys", mtk_audsys_init); 66