diff options
Diffstat (limited to 'sound/soc/mediatek/mt8186/mt8186-audsys-clk.c')
| -rw-r--r-- | sound/soc/mediatek/mt8186/mt8186-audsys-clk.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/sound/soc/mediatek/mt8186/mt8186-audsys-clk.c b/sound/soc/mediatek/mt8186/mt8186-audsys-clk.c new file mode 100644 index 000000000000..578969ca91c8 --- /dev/null +++ b/sound/soc/mediatek/mt8186/mt8186-audsys-clk.c @@ -0,0 +1,150 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// mt8186-audsys-clk.h -- Mediatek 8186 audsys clock control +// +// Copyright (c) 2022 MediaTek Inc. +// Author: Jiaxin Yu <jiaxin.yu@mediatek.com> + +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/clkdev.h> +#include "mt8186-afe-common.h" +#include "mt8186-audsys-clk.h" +#include "mt8186-audsys-clkid.h" +#include "mt8186-reg.h" + +struct afe_gate { + int id; + const char *name; + const char *parent_name; + int reg; + u8 bit; + const struct clk_ops *ops; + unsigned long flags; + u8 cg_flags; +}; + +#define GATE_AFE_FLAGS(_id, _name, _parent, _reg, _bit, _flags, _cgflags) {\ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .reg = _reg, \ + .bit = _bit, \ + .flags = _flags, \ + .cg_flags = _cgflags, \ + } + +#define GATE_AFE(_id, _name, _parent, _reg, _bit) \ + GATE_AFE_FLAGS(_id, _name, _parent, _reg, _bit, \ + CLK_SET_RATE_PARENT, CLK_GATE_SET_TO_DISABLE) + +#define GATE_AUD0(_id, _name, _parent, _bit) \ + GATE_AFE(_id, _name, _parent, AUDIO_TOP_CON0, _bit) + +#define GATE_AUD1(_id, _name, _parent, _bit) \ + GATE_AFE(_id, _name, _parent, AUDIO_TOP_CON1, _bit) + +#define GATE_AUD2(_id, _name, _parent, _bit) \ + GATE_AFE(_id, _name, _parent, AUDIO_TOP_CON2, _bit) + +static const struct afe_gate aud_clks[CLK_AUD_NR_CLK] = { + /* AUD0 */ + GATE_AUD0(CLK_AUD_AFE, "aud_afe_clk", "top_audio", 2), + GATE_AUD0(CLK_AUD_22M, "aud_apll22m_clk", "top_aud_engen1", 8), + GATE_AUD0(CLK_AUD_24M, "aud_apll24m_clk", "top_aud_engen2", 9), + GATE_AUD0(CLK_AUD_APLL2_TUNER, "aud_apll2_tuner_clk", "top_aud_engen2", 18), + GATE_AUD0(CLK_AUD_APLL_TUNER, "aud_apll_tuner_clk", "top_aud_engen1", 19), + GATE_AUD0(CLK_AUD_TDM, "aud_tdm_clk", "top_aud_1", 20), + GATE_AUD0(CLK_AUD_ADC, "aud_adc_clk", "top_audio", 24), + GATE_AUD0(CLK_AUD_DAC, "aud_dac_clk", "top_audio", 25), + GATE_AUD0(CLK_AUD_DAC_PREDIS, "aud_dac_predis_clk", "top_audio", 26), + GATE_AUD0(CLK_AUD_TML, "aud_tml_clk", "top_audio", 27), + GATE_AUD0(CLK_AUD_NLE, "aud_nle_clk", "top_audio", 28), + + /* AUD1 */ + GATE_AUD1(CLK_AUD_I2S1_BCLK, "aud_i2s1_bclk", "top_audio", 4), + GATE_AUD1(CLK_AUD_I2S2_BCLK, "aud_i2s2_bclk", "top_audio", 5), + GATE_AUD1(CLK_AUD_I2S3_BCLK, "aud_i2s3_bclk", "top_audio", 6), + GATE_AUD1(CLK_AUD_I2S4_BCLK, "aud_i2s4_bclk", "top_audio", 7), + GATE_AUD1(CLK_AUD_CONNSYS_I2S_ASRC, "aud_connsys_i2s_asrc", "top_audio", 12), + GATE_AUD1(CLK_AUD_GENERAL1_ASRC, "aud_general1_asrc", "top_audio", 13), + GATE_AUD1(CLK_AUD_GENERAL2_ASRC, "aud_general2_asrc", "top_audio", 14), + GATE_AUD1(CLK_AUD_DAC_HIRES, "aud_dac_hires_clk", "top_audio_h", 15), + GATE_AUD1(CLK_AUD_ADC_HIRES, "aud_adc_hires_clk", "top_audio_h", 16), + GATE_AUD1(CLK_AUD_ADC_HIRES_TML, "aud_adc_hires_tml", "top_audio_h", 17), + GATE_AUD1(CLK_AUD_ADDA6_ADC, "aud_adda6_adc", "top_audio", 20), + GATE_AUD1(CLK_AUD_ADDA6_ADC_HIRES, "aud_adda6_adc_hires", "top_audio_h", 21), + GATE_AUD1(CLK_AUD_3RD_DAC, "aud_3rd_dac", "top_audio", 28), + GATE_AUD1(CLK_AUD_3RD_DAC_PREDIS, "aud_3rd_dac_predis", "top_audio", 29), + GATE_AUD1(CLK_AUD_3RD_DAC_TML, "aud_3rd_dac_tml", "top_audio", 30), + GATE_AUD1(CLK_AUD_3RD_DAC_HIRES, "aud_3rd_dac_hires", "top_audio_h", 31), + + /* AUD2 */ + GATE_AUD2(CLK_AUD_ETDM_IN1_BCLK, "aud_etdm_in1_bclk", "top_audio", 23), + GATE_AUD2(CLK_AUD_ETDM_OUT1_BCLK, "aud_etdm_out1_bclk", "top_audio", 24), +}; + +int mt8186_audsys_clk_register(struct mtk_base_afe *afe) +{ + struct mt8186_afe_private *afe_priv = afe->platform_priv; + struct clk *clk; + struct clk_lookup *cl; + int i; + + afe_priv->lookup = devm_kcalloc(afe->dev, CLK_AUD_NR_CLK, + sizeof(*afe_priv->lookup), + GFP_KERNEL); + + if (!afe_priv->lookup) + return -ENOMEM; + + for (i = 0; i < ARRAY_SIZE(aud_clks); i++) { + const struct afe_gate *gate = &aud_clks[i]; + + clk = clk_register_gate(afe->dev, gate->name, gate->parent_name, + gate->flags, afe->base_addr + gate->reg, + gate->bit, gate->cg_flags, NULL); + + if (IS_ERR(clk)) { + dev_err(afe->dev, "Failed to register clk %s: %ld\n", + gate->name, PTR_ERR(clk)); + continue; + } + + /* add clk_lookup for devm_clk_get(SND_SOC_DAPM_CLOCK_SUPPLY) */ + cl = kzalloc(sizeof(*cl), GFP_KERNEL); + if (!cl) + return -ENOMEM; + + cl->clk = clk; + cl->con_id = gate->name; + cl->dev_id = dev_name(afe->dev); + clkdev_add(cl); + + afe_priv->lookup[i] = cl; + } + + return 0; +} + +void mt8186_audsys_clk_unregister(struct mtk_base_afe *afe) +{ + struct mt8186_afe_private *afe_priv = afe->platform_priv; + struct clk *clk; + struct clk_lookup *cl; + int i; + + if (!afe_priv) + return; + + for (i = 0; i < CLK_AUD_NR_CLK; i++) { + cl = afe_priv->lookup[i]; + if (!cl) + continue; + + clk = cl->clk; + clk_unregister_gate(clk); + + clkdev_drop(cl); + } +} |