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150 lines
4.6 KiB
150 lines
4.6 KiB
// SPDX-License-Identifier: GPL-2.0 |
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// |
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// mt8186-audsys-clk.h -- Mediatek 8186 audsys clock control |
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// |
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// Copyright (c) 2022 MediaTek Inc. |
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// Author: Jiaxin Yu <[email protected]> |
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#include <linux/clk.h> |
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#include <linux/clk-provider.h> |
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#include <linux/clkdev.h> |
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#include "mt8186-afe-common.h" |
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#include "mt8186-audsys-clk.h" |
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#include "mt8186-audsys-clkid.h" |
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#include "mt8186-reg.h" |
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struct afe_gate { |
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int id; |
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const char *name; |
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const char *parent_name; |
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int reg; |
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u8 bit; |
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const struct clk_ops *ops; |
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unsigned long flags; |
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u8 cg_flags; |
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}; |
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#define GATE_AFE_FLAGS(_id, _name, _parent, _reg, _bit, _flags, _cgflags) {\ |
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.id = _id, \ |
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.name = _name, \ |
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.parent_name = _parent, \ |
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.reg = _reg, \ |
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.bit = _bit, \ |
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.flags = _flags, \ |
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.cg_flags = _cgflags, \ |
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} |
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#define GATE_AFE(_id, _name, _parent, _reg, _bit) \ |
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GATE_AFE_FLAGS(_id, _name, _parent, _reg, _bit, \ |
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CLK_SET_RATE_PARENT, CLK_GATE_SET_TO_DISABLE) |
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#define GATE_AUD0(_id, _name, _parent, _bit) \ |
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GATE_AFE(_id, _name, _parent, AUDIO_TOP_CON0, _bit) |
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#define GATE_AUD1(_id, _name, _parent, _bit) \ |
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GATE_AFE(_id, _name, _parent, AUDIO_TOP_CON1, _bit) |
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#define GATE_AUD2(_id, _name, _parent, _bit) \ |
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GATE_AFE(_id, _name, _parent, AUDIO_TOP_CON2, _bit) |
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static const struct afe_gate aud_clks[CLK_AUD_NR_CLK] = { |
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/* AUD0 */ |
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GATE_AUD0(CLK_AUD_AFE, "aud_afe_clk", "top_audio", 2), |
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GATE_AUD0(CLK_AUD_22M, "aud_apll22m_clk", "top_aud_engen1", 8), |
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GATE_AUD0(CLK_AUD_24M, "aud_apll24m_clk", "top_aud_engen2", 9), |
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GATE_AUD0(CLK_AUD_APLL2_TUNER, "aud_apll2_tuner_clk", "top_aud_engen2", 18), |
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GATE_AUD0(CLK_AUD_APLL_TUNER, "aud_apll_tuner_clk", "top_aud_engen1", 19), |
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GATE_AUD0(CLK_AUD_TDM, "aud_tdm_clk", "top_aud_1", 20), |
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GATE_AUD0(CLK_AUD_ADC, "aud_adc_clk", "top_audio", 24), |
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GATE_AUD0(CLK_AUD_DAC, "aud_dac_clk", "top_audio", 25), |
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GATE_AUD0(CLK_AUD_DAC_PREDIS, "aud_dac_predis_clk", "top_audio", 26), |
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GATE_AUD0(CLK_AUD_TML, "aud_tml_clk", "top_audio", 27), |
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GATE_AUD0(CLK_AUD_NLE, "aud_nle_clk", "top_audio", 28), |
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/* AUD1 */ |
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GATE_AUD1(CLK_AUD_I2S1_BCLK, "aud_i2s1_bclk", "top_audio", 4), |
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GATE_AUD1(CLK_AUD_I2S2_BCLK, "aud_i2s2_bclk", "top_audio", 5), |
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GATE_AUD1(CLK_AUD_I2S3_BCLK, "aud_i2s3_bclk", "top_audio", 6), |
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GATE_AUD1(CLK_AUD_I2S4_BCLK, "aud_i2s4_bclk", "top_audio", 7), |
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GATE_AUD1(CLK_AUD_CONNSYS_I2S_ASRC, "aud_connsys_i2s_asrc", "top_audio", 12), |
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GATE_AUD1(CLK_AUD_GENERAL1_ASRC, "aud_general1_asrc", "top_audio", 13), |
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GATE_AUD1(CLK_AUD_GENERAL2_ASRC, "aud_general2_asrc", "top_audio", 14), |
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GATE_AUD1(CLK_AUD_DAC_HIRES, "aud_dac_hires_clk", "top_audio_h", 15), |
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GATE_AUD1(CLK_AUD_ADC_HIRES, "aud_adc_hires_clk", "top_audio_h", 16), |
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GATE_AUD1(CLK_AUD_ADC_HIRES_TML, "aud_adc_hires_tml", "top_audio_h", 17), |
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GATE_AUD1(CLK_AUD_ADDA6_ADC, "aud_adda6_adc", "top_audio", 20), |
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GATE_AUD1(CLK_AUD_ADDA6_ADC_HIRES, "aud_adda6_adc_hires", "top_audio_h", 21), |
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GATE_AUD1(CLK_AUD_3RD_DAC, "aud_3rd_dac", "top_audio", 28), |
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GATE_AUD1(CLK_AUD_3RD_DAC_PREDIS, "aud_3rd_dac_predis", "top_audio", 29), |
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GATE_AUD1(CLK_AUD_3RD_DAC_TML, "aud_3rd_dac_tml", "top_audio", 30), |
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GATE_AUD1(CLK_AUD_3RD_DAC_HIRES, "aud_3rd_dac_hires", "top_audio_h", 31), |
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/* AUD2 */ |
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GATE_AUD2(CLK_AUD_ETDM_IN1_BCLK, "aud_etdm_in1_bclk", "top_audio", 23), |
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GATE_AUD2(CLK_AUD_ETDM_OUT1_BCLK, "aud_etdm_out1_bclk", "top_audio", 24), |
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}; |
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int mt8186_audsys_clk_register(struct mtk_base_afe *afe) |
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{ |
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struct mt8186_afe_private *afe_priv = afe->platform_priv; |
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struct clk *clk; |
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struct clk_lookup *cl; |
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int i; |
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afe_priv->lookup = devm_kcalloc(afe->dev, CLK_AUD_NR_CLK, |
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sizeof(*afe_priv->lookup), |
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GFP_KERNEL); |
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if (!afe_priv->lookup) |
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return -ENOMEM; |
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for (i = 0; i < ARRAY_SIZE(aud_clks); i++) { |
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const struct afe_gate *gate = &aud_clks[i]; |
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clk = clk_register_gate(afe->dev, gate->name, gate->parent_name, |
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gate->flags, afe->base_addr + gate->reg, |
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gate->bit, gate->cg_flags, NULL); |
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if (IS_ERR(clk)) { |
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dev_err(afe->dev, "Failed to register clk %s: %ld\n", |
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gate->name, PTR_ERR(clk)); |
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continue; |
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} |
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/* add clk_lookup for devm_clk_get(SND_SOC_DAPM_CLOCK_SUPPLY) */ |
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cl = kzalloc(sizeof(*cl), GFP_KERNEL); |
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if (!cl) |
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return -ENOMEM; |
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cl->clk = clk; |
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cl->con_id = gate->name; |
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cl->dev_id = dev_name(afe->dev); |
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clkdev_add(cl); |
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afe_priv->lookup[i] = cl; |
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} |
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return 0; |
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} |
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void mt8186_audsys_clk_unregister(struct mtk_base_afe *afe) |
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{ |
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struct mt8186_afe_private *afe_priv = afe->platform_priv; |
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struct clk *clk; |
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struct clk_lookup *cl; |
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int i; |
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if (!afe_priv) |
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return; |
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for (i = 0; i < CLK_AUD_NR_CLK; i++) { |
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cl = afe_priv->lookup[i]; |
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if (!cl) |
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continue; |
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clk = cl->clk; |
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clk_unregister_gate(clk); |
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clkdev_drop(cl); |
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} |
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}
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