root/sound/soc/mediatek/mt8195/mt8195-afe-clk.c
// SPDX-License-Identifier: GPL-2.0
/*
 * mt8195-afe-clk.c  --  Mediatek 8195 afe clock ctrl
 *
 * Copyright (c) 2021 MediaTek Inc.
 * Author: Bicycle Tsai <bicycle.tsai@mediatek.com>
 *         Trevor Wu <trevor.wu@mediatek.com>
 */

#include <linux/clk.h>

#include "mt8195-afe-common.h"
#include "mt8195-afe-clk.h"
#include "mt8195-reg.h"
#include "mt8195-audsys-clk.h"

static const char *aud_clks[MT8195_CLK_NUM] = {
        /* xtal */
        [MT8195_CLK_XTAL_26M] = "clk26m",
        /* divider */
        [MT8195_CLK_TOP_APLL1] = "apll1_ck",
        [MT8195_CLK_TOP_APLL2] = "apll2_ck",
        [MT8195_CLK_TOP_APLL12_DIV0] = "apll12_div0",
        [MT8195_CLK_TOP_APLL12_DIV1] = "apll12_div1",
        [MT8195_CLK_TOP_APLL12_DIV2] = "apll12_div2",
        [MT8195_CLK_TOP_APLL12_DIV3] = "apll12_div3",
        [MT8195_CLK_TOP_APLL12_DIV9] = "apll12_div9",
        /* mux */
        [MT8195_CLK_TOP_A1SYS_HP_SEL] = "a1sys_hp_sel",
        [MT8195_CLK_TOP_AUD_INTBUS_SEL] = "aud_intbus_sel",
        [MT8195_CLK_TOP_AUDIO_H_SEL] = "audio_h_sel",
        [MT8195_CLK_TOP_AUDIO_LOCAL_BUS_SEL] = "audio_local_bus_sel",
        [MT8195_CLK_TOP_DPTX_M_SEL] = "dptx_m_sel",
        [MT8195_CLK_TOP_I2SO1_M_SEL] = "i2so1_m_sel",
        [MT8195_CLK_TOP_I2SO2_M_SEL] = "i2so2_m_sel",
        [MT8195_CLK_TOP_I2SI1_M_SEL] = "i2si1_m_sel",
        [MT8195_CLK_TOP_I2SI2_M_SEL] = "i2si2_m_sel",
        /* clock gate */
        [MT8195_CLK_INFRA_AO_AUDIO_26M_B] = "infra_ao_audio_26m_b",
        [MT8195_CLK_SCP_ADSP_AUDIODSP] = "scp_adsp_audiodsp",
        /* afe clock gate */
        [MT8195_CLK_AUD_AFE] = "aud_afe",
        [MT8195_CLK_AUD_APLL1_TUNER] = "aud_apll1_tuner",
        [MT8195_CLK_AUD_APLL2_TUNER] = "aud_apll2_tuner",
        [MT8195_CLK_AUD_APLL] = "aud_apll",
        [MT8195_CLK_AUD_APLL2] = "aud_apll2",
        [MT8195_CLK_AUD_DAC] = "aud_dac",
        [MT8195_CLK_AUD_ADC] = "aud_adc",
        [MT8195_CLK_AUD_DAC_HIRES] = "aud_dac_hires",
        [MT8195_CLK_AUD_A1SYS_HP] = "aud_a1sys_hp",
        [MT8195_CLK_AUD_ADC_HIRES] = "aud_adc_hires",
        [MT8195_CLK_AUD_ADDA6_ADC] = "aud_adda6_adc",
        [MT8195_CLK_AUD_ADDA6_ADC_HIRES] = "aud_adda6_adc_hires",
        [MT8195_CLK_AUD_I2SIN] = "aud_i2sin",
        [MT8195_CLK_AUD_TDM_IN] = "aud_tdm_in",
        [MT8195_CLK_AUD_I2S_OUT] = "aud_i2s_out",
        [MT8195_CLK_AUD_TDM_OUT] = "aud_tdm_out",
        [MT8195_CLK_AUD_HDMI_OUT] = "aud_hdmi_out",
        [MT8195_CLK_AUD_ASRC11] = "aud_asrc11",
        [MT8195_CLK_AUD_ASRC12] = "aud_asrc12",
        [MT8195_CLK_AUD_A1SYS] = "aud_a1sys",
        [MT8195_CLK_AUD_A2SYS] = "aud_a2sys",
        [MT8195_CLK_AUD_PCMIF] = "aud_pcmif",
        [MT8195_CLK_AUD_MEMIF_UL1] = "aud_memif_ul1",
        [MT8195_CLK_AUD_MEMIF_UL2] = "aud_memif_ul2",
        [MT8195_CLK_AUD_MEMIF_UL3] = "aud_memif_ul3",
        [MT8195_CLK_AUD_MEMIF_UL4] = "aud_memif_ul4",
        [MT8195_CLK_AUD_MEMIF_UL5] = "aud_memif_ul5",
        [MT8195_CLK_AUD_MEMIF_UL6] = "aud_memif_ul6",
        [MT8195_CLK_AUD_MEMIF_UL8] = "aud_memif_ul8",
        [MT8195_CLK_AUD_MEMIF_UL9] = "aud_memif_ul9",
        [MT8195_CLK_AUD_MEMIF_UL10] = "aud_memif_ul10",
        [MT8195_CLK_AUD_MEMIF_DL2] = "aud_memif_dl2",
        [MT8195_CLK_AUD_MEMIF_DL3] = "aud_memif_dl3",
        [MT8195_CLK_AUD_MEMIF_DL6] = "aud_memif_dl6",
        [MT8195_CLK_AUD_MEMIF_DL7] = "aud_memif_dl7",
        [MT8195_CLK_AUD_MEMIF_DL8] = "aud_memif_dl8",
        [MT8195_CLK_AUD_MEMIF_DL10] = "aud_memif_dl10",
        [MT8195_CLK_AUD_MEMIF_DL11] = "aud_memif_dl11",
};

struct mt8195_afe_tuner_cfg {
        unsigned int id;
        int apll_div_reg;
        unsigned int apll_div_shift;
        unsigned int apll_div_maskbit;
        unsigned int apll_div_default;
        int ref_ck_sel_reg;
        unsigned int ref_ck_sel_shift;
        unsigned int ref_ck_sel_maskbit;
        unsigned int ref_ck_sel_default;
        int tuner_en_reg;
        unsigned int tuner_en_shift;
        unsigned int tuner_en_maskbit;
        int upper_bound_reg;
        unsigned int upper_bound_shift;
        unsigned int upper_bound_maskbit;
        unsigned int upper_bound_default;
        spinlock_t ctrl_lock; /* lock for apll tuner ctrl*/
        int ref_cnt;
};

static struct mt8195_afe_tuner_cfg mt8195_afe_tuner_cfgs[MT8195_AUD_PLL_NUM] = {
        [MT8195_AUD_PLL1] = {
                .id = MT8195_AUD_PLL1,
                .apll_div_reg = AFE_APLL_TUNER_CFG,
                .apll_div_shift = 4,
                .apll_div_maskbit = 0xf,
                .apll_div_default = 0x7,
                .ref_ck_sel_reg = AFE_APLL_TUNER_CFG,
                .ref_ck_sel_shift = 1,
                .ref_ck_sel_maskbit = 0x3,
                .ref_ck_sel_default = 0x2,
                .tuner_en_reg = AFE_APLL_TUNER_CFG,
                .tuner_en_shift = 0,
                .tuner_en_maskbit = 0x1,
                .upper_bound_reg = AFE_APLL_TUNER_CFG,
                .upper_bound_shift = 8,
                .upper_bound_maskbit = 0xff,
                .upper_bound_default = 0x3,
        },
        [MT8195_AUD_PLL2] = {
                .id = MT8195_AUD_PLL2,
                .apll_div_reg = AFE_APLL_TUNER_CFG1,
                .apll_div_shift = 4,
                .apll_div_maskbit = 0xf,
                .apll_div_default = 0x7,
                .ref_ck_sel_reg = AFE_APLL_TUNER_CFG1,
                .ref_ck_sel_shift = 1,
                .ref_ck_sel_maskbit = 0x3,
                .ref_ck_sel_default = 0x1,
                .tuner_en_reg = AFE_APLL_TUNER_CFG1,
                .tuner_en_shift = 0,
                .tuner_en_maskbit = 0x1,
                .upper_bound_reg = AFE_APLL_TUNER_CFG1,
                .upper_bound_shift = 8,
                .upper_bound_maskbit = 0xff,
                .upper_bound_default = 0x3,
        },
        [MT8195_AUD_PLL3] = {
                .id = MT8195_AUD_PLL3,
                .apll_div_reg = AFE_EARC_APLL_TUNER_CFG,
                .apll_div_shift = 4,
                .apll_div_maskbit = 0x3f,
                .apll_div_default = 0x3,
                .ref_ck_sel_reg = AFE_EARC_APLL_TUNER_CFG,
                .ref_ck_sel_shift = 24,
                .ref_ck_sel_maskbit = 0x3,
                .ref_ck_sel_default = 0x0,
                .tuner_en_reg = AFE_EARC_APLL_TUNER_CFG,
                .tuner_en_shift = 0,
                .tuner_en_maskbit = 0x1,
                .upper_bound_reg = AFE_EARC_APLL_TUNER_CFG,
                .upper_bound_shift = 12,
                .upper_bound_maskbit = 0xff,
                .upper_bound_default = 0x4,
        },
        [MT8195_AUD_PLL4] = {
                .id = MT8195_AUD_PLL4,
                .apll_div_reg = AFE_SPDIFIN_APLL_TUNER_CFG,
                .apll_div_shift = 4,
                .apll_div_maskbit = 0x3f,
                .apll_div_default = 0x7,
                .ref_ck_sel_reg = AFE_SPDIFIN_APLL_TUNER_CFG1,
                .ref_ck_sel_shift = 8,
                .ref_ck_sel_maskbit = 0x1,
                .ref_ck_sel_default = 0,
                .tuner_en_reg = AFE_SPDIFIN_APLL_TUNER_CFG,
                .tuner_en_shift = 0,
                .tuner_en_maskbit = 0x1,
                .upper_bound_reg = AFE_SPDIFIN_APLL_TUNER_CFG,
                .upper_bound_shift = 12,
                .upper_bound_maskbit = 0xff,
                .upper_bound_default = 0x4,
        },
        [MT8195_AUD_PLL5] = {
                .id = MT8195_AUD_PLL5,
                .apll_div_reg = AFE_LINEIN_APLL_TUNER_CFG,
                .apll_div_shift = 4,
                .apll_div_maskbit = 0x3f,
                .apll_div_default = 0x3,
                .ref_ck_sel_reg = AFE_LINEIN_APLL_TUNER_CFG,
                .ref_ck_sel_shift = 24,
                .ref_ck_sel_maskbit = 0x1,
                .ref_ck_sel_default = 0,
                .tuner_en_reg = AFE_LINEIN_APLL_TUNER_CFG,
                .tuner_en_shift = 0,
                .tuner_en_maskbit = 0x1,
                .upper_bound_reg = AFE_LINEIN_APLL_TUNER_CFG,
                .upper_bound_shift = 12,
                .upper_bound_maskbit = 0xff,
                .upper_bound_default = 0x4,
        },
};

static struct mt8195_afe_tuner_cfg *mt8195_afe_found_apll_tuner(unsigned int id)
{
        if (id >= MT8195_AUD_PLL_NUM)
                return NULL;

        return &mt8195_afe_tuner_cfgs[id];
}

static int mt8195_afe_init_apll_tuner(unsigned int id)
{
        struct mt8195_afe_tuner_cfg *cfg = mt8195_afe_found_apll_tuner(id);

        if (!cfg)
                return -EINVAL;

        cfg->ref_cnt = 0;
        spin_lock_init(&cfg->ctrl_lock);

        return 0;
}

static int mt8195_afe_setup_apll_tuner(struct mtk_base_afe *afe,
                                       unsigned int id)
{
        const struct mt8195_afe_tuner_cfg *cfg = mt8195_afe_found_apll_tuner(id);

        if (!cfg)
                return -EINVAL;

        regmap_update_bits(afe->regmap, cfg->apll_div_reg,
                           cfg->apll_div_maskbit << cfg->apll_div_shift,
                           cfg->apll_div_default << cfg->apll_div_shift);

        regmap_update_bits(afe->regmap, cfg->ref_ck_sel_reg,
                           cfg->ref_ck_sel_maskbit << cfg->ref_ck_sel_shift,
                           cfg->ref_ck_sel_default << cfg->ref_ck_sel_shift);

        regmap_update_bits(afe->regmap, cfg->upper_bound_reg,
                           cfg->upper_bound_maskbit << cfg->upper_bound_shift,
                           cfg->upper_bound_default << cfg->upper_bound_shift);

        return 0;
}

static int mt8195_afe_enable_tuner_clk(struct mtk_base_afe *afe,
                                       unsigned int id)
{
        struct mt8195_afe_private *afe_priv = afe->platform_priv;

        switch (id) {
        case MT8195_AUD_PLL1:
                mt8195_afe_enable_clk(afe, afe_priv->clk[MT8195_CLK_AUD_APLL]);
                mt8195_afe_enable_clk(afe, afe_priv->clk[MT8195_CLK_AUD_APLL1_TUNER]);
                break;
        case MT8195_AUD_PLL2:
                mt8195_afe_enable_clk(afe, afe_priv->clk[MT8195_CLK_AUD_APLL2]);
                mt8195_afe_enable_clk(afe, afe_priv->clk[MT8195_CLK_AUD_APLL2_TUNER]);
                break;
        default:
                break;
        }

        return 0;
}

static int mt8195_afe_disable_tuner_clk(struct mtk_base_afe *afe,
                                        unsigned int id)
{
        struct mt8195_afe_private *afe_priv = afe->platform_priv;

        switch (id) {
        case MT8195_AUD_PLL1:
                mt8195_afe_disable_clk(afe, afe_priv->clk[MT8195_CLK_AUD_APLL1_TUNER]);
                mt8195_afe_disable_clk(afe, afe_priv->clk[MT8195_CLK_AUD_APLL]);
                break;
        case MT8195_AUD_PLL2:
                mt8195_afe_disable_clk(afe, afe_priv->clk[MT8195_CLK_AUD_APLL2_TUNER]);
                mt8195_afe_disable_clk(afe, afe_priv->clk[MT8195_CLK_AUD_APLL2]);
                break;
        default:
                break;
        }

        return 0;
}

static int mt8195_afe_enable_apll_tuner(struct mtk_base_afe *afe,
                                        unsigned int id)
{
        struct mt8195_afe_tuner_cfg *cfg = mt8195_afe_found_apll_tuner(id);
        unsigned long flags;
        int ret;

        if (!cfg)
                return -EINVAL;

        ret = mt8195_afe_setup_apll_tuner(afe, id);
        if (ret)
                return ret;

        ret = mt8195_afe_enable_tuner_clk(afe, id);
        if (ret)
                return ret;

        spin_lock_irqsave(&cfg->ctrl_lock, flags);

        cfg->ref_cnt++;
        if (cfg->ref_cnt == 1)
                regmap_update_bits(afe->regmap,
                                   cfg->tuner_en_reg,
                                   cfg->tuner_en_maskbit << cfg->tuner_en_shift,
                                   1 << cfg->tuner_en_shift);

        spin_unlock_irqrestore(&cfg->ctrl_lock, flags);

        return 0;
}

static int mt8195_afe_disable_apll_tuner(struct mtk_base_afe *afe,
                                         unsigned int id)
{
        struct mt8195_afe_tuner_cfg *cfg = mt8195_afe_found_apll_tuner(id);
        unsigned long flags;
        int ret;

        if (!cfg)
                return -EINVAL;

        spin_lock_irqsave(&cfg->ctrl_lock, flags);

        cfg->ref_cnt--;
        if (cfg->ref_cnt == 0)
                regmap_update_bits(afe->regmap,
                                   cfg->tuner_en_reg,
                                   cfg->tuner_en_maskbit << cfg->tuner_en_shift,
                                   0 << cfg->tuner_en_shift);
        else if (cfg->ref_cnt < 0)
                cfg->ref_cnt = 0;

        spin_unlock_irqrestore(&cfg->ctrl_lock, flags);

        ret = mt8195_afe_disable_tuner_clk(afe, id);
        if (ret)
                return ret;

        return 0;
}

int mt8195_afe_get_mclk_source_clk_id(int sel)
{
        switch (sel) {
        case MT8195_MCK_SEL_26M:
                return MT8195_CLK_XTAL_26M;
        case MT8195_MCK_SEL_APLL1:
                return MT8195_CLK_TOP_APLL1;
        case MT8195_MCK_SEL_APLL2:
                return MT8195_CLK_TOP_APLL2;
        default:
                return -EINVAL;
        }
}

int mt8195_afe_get_mclk_source_rate(struct mtk_base_afe *afe, int apll)
{
        struct mt8195_afe_private *afe_priv = afe->platform_priv;
        int clk_id = mt8195_afe_get_mclk_source_clk_id(apll);

        if (clk_id < 0) {
                dev_dbg(afe->dev, "invalid clk id\n");
                return 0;
        }

        return clk_get_rate(afe_priv->clk[clk_id]);
}

int mt8195_afe_get_default_mclk_source_by_rate(int rate)
{
        return ((rate % 8000) == 0) ?
                MT8195_MCK_SEL_APLL1 : MT8195_MCK_SEL_APLL2;
}

int mt8195_afe_init_clock(struct mtk_base_afe *afe)
{
        struct mt8195_afe_private *afe_priv = afe->platform_priv;
        int i, ret;

        mt8195_audsys_clk_register(afe);

        afe_priv->clk =
                devm_kcalloc(afe->dev, MT8195_CLK_NUM, sizeof(*afe_priv->clk),
                             GFP_KERNEL);
        if (!afe_priv->clk)
                return -ENOMEM;

        for (i = 0; i < MT8195_CLK_NUM; i++) {
                afe_priv->clk[i] = devm_clk_get(afe->dev, aud_clks[i]);
                if (IS_ERR(afe_priv->clk[i])) {
                        dev_dbg(afe->dev, "%s(), devm_clk_get %s fail, ret %ld\n",
                                __func__, aud_clks[i],
                                PTR_ERR(afe_priv->clk[i]));
                        return PTR_ERR(afe_priv->clk[i]);
                }
        }

        /* initial tuner */
        for (i = 0; i < MT8195_AUD_PLL_NUM; i++) {
                ret = mt8195_afe_init_apll_tuner(i);
                if (ret) {
                        dev_dbg(afe->dev, "%s(), init apll_tuner%d failed",
                                __func__, (i + 1));
                        return -EINVAL;
                }
        }

        return 0;
}

int mt8195_afe_enable_clk(struct mtk_base_afe *afe, struct clk *clk)
{
        int ret;

        if (clk) {
                ret = clk_prepare_enable(clk);
                if (ret) {
                        dev_dbg(afe->dev, "%s(), failed to enable clk\n",
                                __func__);
                        return ret;
                }
        } else {
                dev_dbg(afe->dev, "NULL clk\n");
        }
        return 0;
}
EXPORT_SYMBOL_GPL(mt8195_afe_enable_clk);

void mt8195_afe_disable_clk(struct mtk_base_afe *afe, struct clk *clk)
{
        if (clk)
                clk_disable_unprepare(clk);
        else
                dev_dbg(afe->dev, "NULL clk\n");
}
EXPORT_SYMBOL_GPL(mt8195_afe_disable_clk);

int mt8195_afe_prepare_clk(struct mtk_base_afe *afe, struct clk *clk)
{
        int ret;

        if (clk) {
                ret = clk_prepare(clk);
                if (ret) {
                        dev_dbg(afe->dev, "%s(), failed to prepare clk\n",
                                __func__);
                        return ret;
                }
        } else {
                dev_dbg(afe->dev, "NULL clk\n");
        }
        return 0;
}

void mt8195_afe_unprepare_clk(struct mtk_base_afe *afe, struct clk *clk)
{
        if (clk)
                clk_unprepare(clk);
        else
                dev_dbg(afe->dev, "NULL clk\n");
}

int mt8195_afe_enable_clk_atomic(struct mtk_base_afe *afe, struct clk *clk)
{
        int ret;

        if (clk) {
                ret = clk_enable(clk);
                if (ret) {
                        dev_dbg(afe->dev, "%s(), failed to clk enable\n",
                                __func__);
                        return ret;
                }
        } else {
                dev_dbg(afe->dev, "NULL clk\n");
        }
        return 0;
}

void mt8195_afe_disable_clk_atomic(struct mtk_base_afe *afe, struct clk *clk)
{
        if (clk)
                clk_disable(clk);
        else
                dev_dbg(afe->dev, "NULL clk\n");
}

int mt8195_afe_set_clk_rate(struct mtk_base_afe *afe, struct clk *clk,
                            unsigned int rate)
{
        int ret;

        if (clk) {
                ret = clk_set_rate(clk, rate);
                if (ret) {
                        dev_dbg(afe->dev, "%s(), failed to set clk rate\n",
                                __func__);
                        return ret;
                }
        }

        return 0;
}

int mt8195_afe_set_clk_parent(struct mtk_base_afe *afe, struct clk *clk,
                              struct clk *parent)
{
        int ret;

        if (clk && parent) {
                ret = clk_set_parent(clk, parent);
                if (ret) {
                        dev_dbg(afe->dev, "%s(), failed to set clk parent\n",
                                __func__);
                        return ret;
                }
        }

        return 0;
}

static unsigned int get_top_cg_reg(unsigned int cg_type)
{
        switch (cg_type) {
        case MT8195_TOP_CG_A1SYS_TIMING:
        case MT8195_TOP_CG_A2SYS_TIMING:
        case MT8195_TOP_CG_26M_TIMING:
                return ASYS_TOP_CON;
        default:
                return 0;
        }
}

static unsigned int get_top_cg_mask(unsigned int cg_type)
{
        switch (cg_type) {
        case MT8195_TOP_CG_A1SYS_TIMING:
                return ASYS_TOP_CON_A1SYS_TIMING_ON;
        case MT8195_TOP_CG_A2SYS_TIMING:
                return ASYS_TOP_CON_A2SYS_TIMING_ON;
        case MT8195_TOP_CG_26M_TIMING:
                return ASYS_TOP_CON_26M_TIMING_ON;
        default:
                return 0;
        }
}

static unsigned int get_top_cg_on_val(unsigned int cg_type)
{
        switch (cg_type) {
        case MT8195_TOP_CG_A1SYS_TIMING:
        case MT8195_TOP_CG_A2SYS_TIMING:
        case MT8195_TOP_CG_26M_TIMING:
                return get_top_cg_mask(cg_type);
        default:
                return 0;
        }
}

static unsigned int get_top_cg_off_val(unsigned int cg_type)
{
        switch (cg_type) {
        case MT8195_TOP_CG_A1SYS_TIMING:
        case MT8195_TOP_CG_A2SYS_TIMING:
        case MT8195_TOP_CG_26M_TIMING:
                return 0;
        default:
                return get_top_cg_mask(cg_type);
        }
}

static int mt8195_afe_enable_top_cg(struct mtk_base_afe *afe, unsigned int cg_type)
{
        unsigned int reg = get_top_cg_reg(cg_type);
        unsigned int mask = get_top_cg_mask(cg_type);
        unsigned int val = get_top_cg_on_val(cg_type);

        regmap_update_bits(afe->regmap, reg, mask, val);
        return 0;
}

static int mt8195_afe_disable_top_cg(struct mtk_base_afe *afe, unsigned int cg_type)
{
        unsigned int reg = get_top_cg_reg(cg_type);
        unsigned int mask = get_top_cg_mask(cg_type);
        unsigned int val = get_top_cg_off_val(cg_type);

        regmap_update_bits(afe->regmap, reg, mask, val);
        return 0;
}

int mt8195_afe_enable_reg_rw_clk(struct mtk_base_afe *afe)
{
        struct mt8195_afe_private *afe_priv = afe->platform_priv;
        int i;
        static const unsigned int clk_array[] = {
                MT8195_CLK_SCP_ADSP_AUDIODSP, /* bus clock for infra */
                MT8195_CLK_TOP_AUDIO_H_SEL, /* clock for ADSP bus */
                MT8195_CLK_TOP_AUDIO_LOCAL_BUS_SEL, /* bus clock for DRAM access */
                MT8195_CLK_TOP_AUD_INTBUS_SEL, /* bus clock for AFE SRAM access */
                MT8195_CLK_INFRA_AO_AUDIO_26M_B, /* audio 26M clock */
                MT8195_CLK_AUD_AFE, /* AFE HW master switch */
                MT8195_CLK_AUD_A1SYS_HP, /* AFE HW clock*/
                MT8195_CLK_AUD_A1SYS, /* AFE HW clock */
        };

        for (i = 0; i < ARRAY_SIZE(clk_array); i++)
                mt8195_afe_enable_clk(afe, afe_priv->clk[clk_array[i]]);

        return 0;
}

int mt8195_afe_disable_reg_rw_clk(struct mtk_base_afe *afe)
{
        struct mt8195_afe_private *afe_priv = afe->platform_priv;
        int i;
        static const unsigned int clk_array[] = {
                MT8195_CLK_AUD_A1SYS,
                MT8195_CLK_AUD_A1SYS_HP,
                MT8195_CLK_AUD_AFE,
                MT8195_CLK_INFRA_AO_AUDIO_26M_B,
                MT8195_CLK_TOP_AUD_INTBUS_SEL,
                MT8195_CLK_TOP_AUDIO_LOCAL_BUS_SEL,
                MT8195_CLK_TOP_AUDIO_H_SEL,
                MT8195_CLK_SCP_ADSP_AUDIODSP,
        };

        for (i = 0; i < ARRAY_SIZE(clk_array); i++)
                mt8195_afe_disable_clk(afe, afe_priv->clk[clk_array[i]]);

        return 0;
}

static int mt8195_afe_enable_afe_on(struct mtk_base_afe *afe)
{
        regmap_update_bits(afe->regmap, AFE_DAC_CON0, 0x1, 0x1);
        return 0;
}

static int mt8195_afe_disable_afe_on(struct mtk_base_afe *afe)
{
        regmap_update_bits(afe->regmap, AFE_DAC_CON0, 0x1, 0x0);
        return 0;
}

static int mt8195_afe_enable_timing_sys(struct mtk_base_afe *afe)
{
        struct mt8195_afe_private *afe_priv = afe->platform_priv;
        int i;
        static const unsigned int clk_array[] = {
                MT8195_CLK_AUD_A1SYS,
                MT8195_CLK_AUD_A2SYS,
        };
        static const unsigned int cg_array[] = {
                MT8195_TOP_CG_A1SYS_TIMING,
                MT8195_TOP_CG_A2SYS_TIMING,
                MT8195_TOP_CG_26M_TIMING,
        };

        for (i = 0; i < ARRAY_SIZE(clk_array); i++)
                mt8195_afe_enable_clk(afe, afe_priv->clk[clk_array[i]]);

        for (i = 0; i < ARRAY_SIZE(cg_array); i++)
                mt8195_afe_enable_top_cg(afe, cg_array[i]);

        return 0;
}

static int mt8195_afe_disable_timing_sys(struct mtk_base_afe *afe)
{
        struct mt8195_afe_private *afe_priv = afe->platform_priv;
        int i;
        static const unsigned int clk_array[] = {
                MT8195_CLK_AUD_A2SYS,
                MT8195_CLK_AUD_A1SYS,
        };
        static const unsigned int cg_array[] = {
                MT8195_TOP_CG_26M_TIMING,
                MT8195_TOP_CG_A2SYS_TIMING,
                MT8195_TOP_CG_A1SYS_TIMING,
        };

        for (i = 0; i < ARRAY_SIZE(cg_array); i++)
                mt8195_afe_disable_top_cg(afe, cg_array[i]);

        for (i = 0; i < ARRAY_SIZE(clk_array); i++)
                mt8195_afe_disable_clk(afe, afe_priv->clk[clk_array[i]]);

        return 0;
}

int mt8195_afe_enable_main_clock(struct mtk_base_afe *afe)
{
        mt8195_afe_enable_timing_sys(afe);

        mt8195_afe_enable_afe_on(afe);

        mt8195_afe_enable_apll_tuner(afe, MT8195_AUD_PLL1);
        mt8195_afe_enable_apll_tuner(afe, MT8195_AUD_PLL2);

        return 0;
}

int mt8195_afe_disable_main_clock(struct mtk_base_afe *afe)
{
        mt8195_afe_disable_apll_tuner(afe, MT8195_AUD_PLL2);
        mt8195_afe_disable_apll_tuner(afe, MT8195_AUD_PLL1);

        mt8195_afe_disable_afe_on(afe);

        mt8195_afe_disable_timing_sys(afe);

        return 0;
}