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// 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);
}
}
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