From nobody Sat Oct 4 00:32:11 2025 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1D2AA257448; Fri, 22 Aug 2025 12:53:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.61.82.184 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755867225; cv=none; b=gH5aI7SHJ8uXtQr8YmBwrCmH+gsQqQ2rb0+tbZHzOPAsnmkyIxAp1Pgh9Zs0pKH4LHqR6EASkKLHGHDbqJspmNtq66xDuV0a5LpJQpRknIZQjdMf/uY89d7PEiWdGiTxg6xHPGtcdiyWbu23zFxI/9BPRAthG4RVXY3upDcezWA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755867225; c=relaxed/simple; bh=d6zzBNWKE+6nb+fa7EXKGQEEQh62lQSIU07SN44AloU=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=LgLK+xtOSHx2fcxN3Z4H/6Gw4PffXFo9dhlPRpgcQoEvOOU9ZoRYUP1vm38Jk48wl/tsIcfQkbuyNXmCQgQnIu1MgPK6ivopii1XAoBpq5pPpgFxWQG3WSq9ZambwbLnjxerKD39ZZAD+pKBIaw4sD5fgrOLUK2vUBGsqQCUEZk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com; spf=pass smtp.mailfrom=mediatek.com; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b=iuMg5LXP; arc=none smtp.client-ip=210.61.82.184 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mediatek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="iuMg5LXP" X-UUID: 048b6bdc7f5711f0b33aeb1e7f16c2b6-20250822 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=WG7/zNQZqDhYBGvRgpDodgyxqcJ2uteywX/oT6dXdeQ=; b=iuMg5LXPHnIuzD7INFQT7T18Nzr6IEBNJ7QcwwGPwWFzJBJGLhIQexbDH7E0RfoCK7Y6aiV5h7m19TQRH/bphcSsftJ+W9YbKxkj3LW9/CO5x3W01Pfi3d4j20gdYa34qA0S/UzQLxrAySKLdCzR1pqszz5yrjz97m/N7WigxoQ=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.3,REQID:5292a712-c650-4752-800a-8a547e604623,IP:0,UR L:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION:r elease,TS:0 X-CID-META: VersionHash:f1326cf,CLOUDID:42f7c344-18c5-4075-a135-4c0afe29f9d6,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:81|82|102,TC:-5,Content:0|15|50,EDM: -3,IP:nil,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0, AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: 048b6bdc7f5711f0b33aeb1e7f16c2b6-20250822 Received: from mtkmbs14n2.mediatek.inc [(172.21.101.76)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 140311896; Fri, 22 Aug 2025 20:53:36 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs11n1.mediatek.inc (172.21.101.185) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.39; Fri, 22 Aug 2025 20:53:34 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1258.39 via Frontend Transport; Fri, 22 Aug 2025 20:53:32 +0800 From: Darren.Ye To: Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Jaroslav Kysela , Takashi Iwai , Linus Walleij , Bartosz Golaszewski CC: , , , , , , Darren Ye Subject: [PATCH v7 03/10] ASoC: mediatek: mt8196: support audio clock control Date: Fri, 22 Aug 2025 20:52:32 +0800 Message-ID: <20250822125301.12333-4-darren.ye@mediatek.com> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20250822125301.12333-1-darren.ye@mediatek.com> References: <20250822125301.12333-1-darren.ye@mediatek.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-MTK: N Content-Type: text/plain; charset="utf-8" From: Darren Ye Add audio clock wrapper and audio tuner control. Signed-off-by: Darren Ye --- sound/soc/mediatek/mt8196/mt8196-afe-clk.c | 580 +++++++++++++++++++++ sound/soc/mediatek/mt8196/mt8196-afe-clk.h | 64 +++ 2 files changed, 644 insertions(+) create mode 100644 sound/soc/mediatek/mt8196/mt8196-afe-clk.c create mode 100644 sound/soc/mediatek/mt8196/mt8196-afe-clk.h diff --git a/sound/soc/mediatek/mt8196/mt8196-afe-clk.c b/sound/soc/mediate= k/mt8196/mt8196-afe-clk.c new file mode 100644 index 000000000000..d7f48f62ddc6 --- /dev/null +++ b/sound/soc/mediatek/mt8196/mt8196-afe-clk.c @@ -0,0 +1,580 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * mt8196-afe-clk.c -- Mediatek 8196 afe clock ctrl + * + * Copyright (c) 2025 MediaTek Inc. + * Author: Darren Ye + */ + +#include +#include +#include + +#include "mt8196-afe-clk.h" +#include "mt8196-afe-common.h" + +static const char *aud_clks[MT8196_CLK_NUM] =3D { + /* vlp clk */ + [MT8196_CLK_VLP_MUX_AUDIOINTBUS] =3D "top_aud_intbus", + [MT8196_CLK_VLP_MUX_AUD_ENG1] =3D "top_aud_eng1", + [MT8196_CLK_VLP_MUX_AUD_ENG2] =3D "top_aud_eng2", + [MT8196_CLK_VLP_MUX_AUDIO_H] =3D "top_aud_h", + /* pll */ + [MT8196_CLK_TOP_APLL1_CK] =3D "apll1", + [MT8196_CLK_TOP_APLL2_CK] =3D "apll2", + /* divider */ + [MT8196_CLK_TOP_APLL12_DIV_I2SIN0] =3D "apll12_div_i2sin0", + [MT8196_CLK_TOP_APLL12_DIV_I2SIN1] =3D "apll12_div_i2sin1", + [MT8196_CLK_TOP_APLL12_DIV_FMI2S] =3D "apll12_div_fmi2s", + [MT8196_CLK_TOP_APLL12_DIV_TDMOUT_M] =3D "apll12_div_tdmout_m", + [MT8196_CLK_TOP_APLL12_DIV_TDMOUT_B] =3D "apll12_div_tdmout_b", + /* mux */ + [MT8196_CLK_TOP_ADSP_SEL] =3D "top_adsp", +}; + +int mt8196_afe_enable_clk(struct mtk_base_afe *afe, struct clk *clk) +{ + int ret; + + ret =3D clk_prepare_enable(clk); + if (ret) { + dev_err(afe->dev, "failed to enable clk\n"); + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(mt8196_afe_enable_clk); + +void mt8196_afe_disable_clk(struct mtk_base_afe *afe, struct clk *clk) +{ + if (clk) + clk_disable_unprepare(clk); + else + dev_err(afe->dev, "NULL clk\n"); +} +EXPORT_SYMBOL_GPL(mt8196_afe_disable_clk); + +static int mt8196_afe_set_clk_rate(struct mtk_base_afe *afe, struct clk *c= lk, + unsigned int rate) +{ + int ret; + + if (clk) { + ret =3D clk_set_rate(clk, rate); + if (ret) { + dev_err(afe->dev, "failed to set clk rate\n"); + return ret; + } + } + + return 0; +} + +static unsigned int get_top_cg_reg(unsigned int cg_type) +{ + switch (cg_type) { + case MT8196_AUDIO_26M_EN_ON: + case MT8196_AUDIO_F3P25M_EN_ON: + case MT8196_AUDIO_APLL1_EN_ON: + case MT8196_AUDIO_APLL2_EN_ON: + return AUDIO_ENGEN_CON0; + case MT8196_CG_AUDIO_HOPPING_CK: + case MT8196_CG_AUDIO_F26M_CK: + case MT8196_CG_APLL1_CK: + case MT8196_CG_APLL2_CK: + case MT8196_PDN_APLL_TUNER2: + case MT8196_PDN_APLL_TUNER1: + return AUDIO_TOP_CON4; + default: + return 0; + } +} + +static unsigned int get_top_cg_mask(unsigned int cg_type) +{ + switch (cg_type) { + case MT8196_AUDIO_26M_EN_ON: + return AUDIO_26M_EN_ON_MASK_SFT; + case MT8196_AUDIO_F3P25M_EN_ON: + return AUDIO_F3P25M_EN_ON_MASK_SFT; + case MT8196_AUDIO_APLL1_EN_ON: + return AUDIO_APLL1_EN_ON_MASK_SFT; + case MT8196_AUDIO_APLL2_EN_ON: + return AUDIO_APLL2_EN_ON_MASK_SFT; + case MT8196_CG_AUDIO_HOPPING_CK: + return CG_AUDIO_HOPPING_CK_MASK_SFT; + case MT8196_CG_AUDIO_F26M_CK: + return CG_AUDIO_F26M_CK_MASK_SFT; + case MT8196_CG_APLL1_CK: + return CG_APLL1_CK_MASK_SFT; + case MT8196_CG_APLL2_CK: + return CG_APLL2_CK_MASK_SFT; + case MT8196_PDN_APLL_TUNER2: + return PDN_APLL_TUNER2_MASK_SFT; + case MT8196_PDN_APLL_TUNER1: + return PDN_APLL_TUNER1_MASK_SFT; + default: + return 0; + } +} + +static unsigned int get_top_cg_on_val(unsigned int cg_type) +{ + switch (cg_type) { + case MT8196_AUDIO_26M_EN_ON: + case MT8196_AUDIO_F3P25M_EN_ON: + case MT8196_AUDIO_APLL1_EN_ON: + case MT8196_AUDIO_APLL2_EN_ON: + return get_top_cg_mask(cg_type); + case MT8196_CG_AUDIO_HOPPING_CK: + case MT8196_CG_AUDIO_F26M_CK: + case MT8196_CG_APLL1_CK: + case MT8196_CG_APLL2_CK: + case MT8196_PDN_APLL_TUNER2: + case MT8196_PDN_APLL_TUNER1: + return 0; + default: + return 0; + } +} + +static unsigned int get_top_cg_off_val(unsigned int cg_type) +{ + switch (cg_type) { + case MT8196_AUDIO_26M_EN_ON: + case MT8196_AUDIO_F3P25M_EN_ON: + case MT8196_AUDIO_APLL1_EN_ON: + case MT8196_AUDIO_APLL2_EN_ON: + return 0; + case MT8196_CG_AUDIO_HOPPING_CK: + case MT8196_CG_AUDIO_F26M_CK: + case MT8196_CG_APLL1_CK: + case MT8196_CG_APLL2_CK: + case MT8196_PDN_APLL_TUNER2: + case MT8196_PDN_APLL_TUNER1: + return get_top_cg_mask(cg_type); + default: + return get_top_cg_mask(cg_type); + } +} + +static int mt8196_afe_enable_top_cg(struct mtk_base_afe *afe, unsigned int= cg_type) +{ + int ret; + unsigned int reg =3D get_top_cg_reg(cg_type); + unsigned int mask =3D get_top_cg_mask(cg_type); + unsigned int val =3D get_top_cg_on_val(cg_type); + + if (!afe->regmap) { + dev_err(afe->dev, "afe regmap is null !!!\n"); + return 0; + } + + dev_dbg(afe->dev, "reg: 0x%x, mask: 0x%x, val: 0x%x\n", reg, mask, val); + + ret =3D regmap_update_bits(afe->regmap, reg, mask, val); + if (ret) + dev_err(afe->dev, "regmap_update_bits failed: %d\n", ret); + + return ret; +} + +static int mt8196_afe_disable_top_cg(struct mtk_base_afe *afe, unsigned in= t cg_type) +{ + int ret; + unsigned int reg =3D get_top_cg_reg(cg_type); + unsigned int mask =3D get_top_cg_mask(cg_type); + unsigned int val =3D get_top_cg_off_val(cg_type); + + if (!afe->regmap) { + dev_err(afe->dev, "afe regmap is null !!!\n"); + return 0; + } + + dev_dbg(afe->dev, "reg: 0x%x, mask: 0x%x, val: 0x%x\n", reg, mask, val); + + ret =3D regmap_update_bits(afe->regmap, reg, mask, val); + if (ret) + dev_err(afe->dev, "regmap_update_bits failed: %d\n", ret); + + return ret; +} + +static int apll1_mux_setting(struct mtk_base_afe *afe, bool enable) +{ + struct mt8196_afe_private *afe_priv =3D afe->platform_priv; + int apll_rate; + int ret; + + dev_dbg(afe->dev, "enable: %d\n", enable); + + if (enable) { + apll_rate =3D mt8196_get_apll_rate(afe, MT8196_APLL1); + + /* 180.6336 / 4 =3D 45.1584MHz */ + ret =3D mt8196_afe_enable_clk(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AUD_= ENG1]); + if (ret) + return ret; + + ret =3D mt8196_afe_set_clk_rate(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AU= D_ENG1], + MT8196_AUD_ENG1_CLK); + if (ret) + return ret; + + ret =3D mt8196_afe_enable_clk(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AUDI= O_H]); + if (ret) + return ret; + + ret =3D mt8196_afe_set_clk_rate(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AU= DIO_H], + apll_rate); + if (ret) + return ret; + } else { + ret =3D mt8196_afe_set_clk_rate(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AU= D_ENG1], + MT8196_AFE_26M); + if (ret) + return ret; + + mt8196_afe_disable_clk(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AUD_ENG1]); + + ret =3D mt8196_afe_set_clk_rate(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AU= DIO_H], + MT8196_AFE_26M); + if (ret) + return ret; + + mt8196_afe_disable_clk(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AUDIO_H]); + } + + return 0; +} + +static int apll2_mux_setting(struct mtk_base_afe *afe, bool enable) +{ + struct mt8196_afe_private *afe_priv =3D afe->platform_priv; + int apll_rate; + int ret; + + dev_dbg(afe->dev, "enable: %d\n", enable); + + if (enable) { + apll_rate =3D mt8196_get_apll_rate(afe, MT8196_APLL2); + + /* 196.608 / 4 =3D 49.152MHz */ + ret =3D mt8196_afe_enable_clk(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AUD_= ENG2]); + if (ret) + return ret; + + ret =3D mt8196_afe_set_clk_rate(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AU= D_ENG2], + MT8196_AUD_ENG2_CLK); + if (ret) + return ret; + + ret =3D mt8196_afe_enable_clk(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AUDI= O_H]); + if (ret) + return ret; + + ret =3D mt8196_afe_set_clk_rate(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AU= DIO_H], apll_rate); + if (ret) + return ret; + } else { + ret =3D mt8196_afe_set_clk_rate(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AU= D_ENG2], + MT8196_AFE_26M); + if (ret) + return ret; + + mt8196_afe_disable_clk(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AUD_ENG2]); + + ret =3D mt8196_afe_set_clk_rate(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AU= DIO_H], + MT8196_AFE_26M); + if (ret) + return ret; + + mt8196_afe_disable_clk(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AUDIO_H]); + } + + return 0; +} + +int mt8196_apll1_enable(struct mtk_base_afe *afe) +{ + int ret; + + /* setting for APLL */ + apll1_mux_setting(afe, true); + + ret =3D mt8196_afe_enable_top_cg(afe, MT8196_CG_APLL1_CK); + if (ret) + goto err_clk_apll1; + + ret =3D mt8196_afe_enable_top_cg(afe, MT8196_PDN_APLL_TUNER1); + if (ret) + goto err_clk_apll1_tuner; + + /* sel 44.1kHz:1, apll_div:7, upper bound:3 */ + regmap_update_bits(afe->regmap, AFE_APLL1_TUNER_CFG, + XTAL_EN_128FS_SEL_MASK_SFT | APLL_DIV_MASK_SFT | UPPER_BOUND_MASK_SF= T, + (0x1 << XTAL_EN_128FS_SEL_SFT) | (7 << APLL_DIV_SFT) | + (3 << UPPER_BOUND_SFT)); + + /* apll1 freq tuner enable */ + regmap_update_bits(afe->regmap, AFE_APLL1_TUNER_CFG, + FREQ_TUNER_EN_MASK_SFT, + 0x1 << FREQ_TUNER_EN_SFT); + + /* audio apll1 on */ + mt8196_afe_enable_top_cg(afe, MT8196_AUDIO_APLL1_EN_ON); + + return 0; + +err_clk_apll1_tuner: + mt8196_afe_disable_top_cg(afe, MT8196_PDN_APLL_TUNER1); +err_clk_apll1: + mt8196_afe_disable_top_cg(afe, MT8196_CG_APLL1_CK); + return ret; +} + +void mt8196_apll1_disable(struct mtk_base_afe *afe) +{ + /* audio apll1 off */ + mt8196_afe_disable_top_cg(afe, MT8196_AUDIO_APLL1_EN_ON); + + /* apll1 freq tuner disable */ + regmap_update_bits(afe->regmap, AFE_APLL1_TUNER_CFG, + FREQ_TUNER_EN_MASK_SFT, + 0x0); + + mt8196_afe_disable_top_cg(afe, MT8196_PDN_APLL_TUNER1); + mt8196_afe_disable_top_cg(afe, MT8196_CG_APLL1_CK); + apll1_mux_setting(afe, false); +} + +int mt8196_apll2_enable(struct mtk_base_afe *afe) +{ + int ret; + + /* setting for APLL */ + apll2_mux_setting(afe, true); + + ret =3D mt8196_afe_enable_top_cg(afe, MT8196_CG_APLL2_CK); + if (ret) + goto err_clk_apll2; + + ret =3D mt8196_afe_enable_top_cg(afe, MT8196_PDN_APLL_TUNER2); + if (ret) + goto err_clk_apll2_tuner; + + /* sel 48kHz: 2, apll_div: 7, upper bound: 3*/ + regmap_update_bits(afe->regmap, AFE_APLL2_TUNER_CFG, + XTAL_EN_128FS_SEL_MASK_SFT | APLL_DIV_MASK_SFT | UPPER_BOUND_MASK_SF= T, + (0x2 << XTAL_EN_128FS_SEL_SFT) | (7 << APLL_DIV_SFT) | + (3 << UPPER_BOUND_SFT)); + + /* apll2 freq tuner enable */ + regmap_update_bits(afe->regmap, AFE_APLL2_TUNER_CFG, + FREQ_TUNER_EN_MASK_SFT, + 0x1 << FREQ_TUNER_EN_SFT); + + /* audio apll2 on */ + mt8196_afe_enable_top_cg(afe, MT8196_AUDIO_APLL2_EN_ON); + return 0; + +err_clk_apll2_tuner: + mt8196_afe_disable_top_cg(afe, MT8196_PDN_APLL_TUNER2); +err_clk_apll2: + mt8196_afe_disable_top_cg(afe, MT8196_CG_APLL2_CK); + return 0; +} + +void mt8196_apll2_disable(struct mtk_base_afe *afe) +{ + /* audio apll2 off */ + mt8196_afe_disable_top_cg(afe, MT8196_AUDIO_APLL2_EN_ON); + + /* apll2 freq tuner disable */ + regmap_update_bits(afe->regmap, AFE_APLL2_TUNER_CFG, + FREQ_TUNER_EN_MASK_SFT, + 0x0); + + mt8196_afe_disable_top_cg(afe, MT8196_PDN_APLL_TUNER2); + mt8196_afe_disable_top_cg(afe, MT8196_CG_APLL2_CK); + apll2_mux_setting(afe, false); +} + +int mt8196_get_apll_rate(struct mtk_base_afe *afe, int apll) +{ + struct mt8196_afe_private *afe_priv =3D afe->platform_priv; + int clk_id =3D 0; + + if (apll < MT8196_APLL1 || apll > MT8196_APLL2) { + dev_warn(afe->dev, "invalid clk id %d\n", apll); + return 0; + } + + if (apll =3D=3D MT8196_APLL1) + clk_id =3D MT8196_CLK_TOP_APLL1_CK; + else + clk_id =3D MT8196_CLK_TOP_APLL2_CK; + + return clk_get_rate(afe_priv->clk[clk_id]); +} + +/* 48K: select APLL2; 44.1k: select APLL1 */ +int mt8196_get_apll_by_rate(struct mtk_base_afe *afe, int rate) +{ + return (rate % 8000) ? MT8196_APLL1 : MT8196_APLL2; +} + +int mt8196_get_apll_by_name(struct mtk_base_afe *afe, const char *name) +{ + if (strcmp(name, APLL1_W_NAME) =3D=3D 0) + return MT8196_APLL1; + + return MT8196_APLL2; +} + +static const int mck_div[MT8196_MCK_NUM] =3D { + [MT8196_I2SIN0_MCK] =3D MT8196_CLK_TOP_APLL12_DIV_I2SIN0, + [MT8196_I2SIN1_MCK] =3D MT8196_CLK_TOP_APLL12_DIV_I2SIN1, + [MT8196_FMI2S_MCK] =3D MT8196_CLK_TOP_APLL12_DIV_FMI2S, + [MT8196_TDMOUT_MCK] =3D MT8196_CLK_TOP_APLL12_DIV_TDMOUT_M, + [MT8196_TDMOUT_BCK] =3D MT8196_CLK_TOP_APLL12_DIV_TDMOUT_B, +}; + +int mt8196_mck_enable(struct mtk_base_afe *afe, int mck_id, int rate) +{ + struct mt8196_afe_private *afe_priv =3D afe->platform_priv; + int div_clk_id; + int ret; + + dev_dbg(afe->dev, "mck_id: %d, rate: %d\n", mck_id, rate); + + if (mck_id >=3D MT8196_MCK_NUM || mck_id < 0) + return -EINVAL; + + div_clk_id =3D mck_div[mck_id]; + + /* enable div, set rate */ + if (div_clk_id < 0) { + dev_err(afe->dev, "invalid div_clk_id %d\n", div_clk_id); + return -EINVAL; + } + + if (div_clk_id =3D=3D MT8196_CLK_TOP_APLL12_DIV_TDMOUT_B) + rate *=3D 16; + + ret =3D mt8196_afe_enable_clk(afe, afe_priv->clk[div_clk_id]); + if (ret) + return ret; + + ret =3D mt8196_afe_set_clk_rate(afe, afe_priv->clk[div_clk_id], rate); + if (ret) + return ret; + + return 0; +} + +int mt8196_mck_disable(struct mtk_base_afe *afe, int mck_id) +{ + struct mt8196_afe_private *afe_priv =3D afe->platform_priv; + int div_clk_id; + int ret; + + dev_dbg(afe->dev, "mck_id: %d.\n", mck_id); + + if (mck_id < 0) { + dev_err(afe->dev, "mck_id =3D %d < 0\n", mck_id); + return -EINVAL; + } + + div_clk_id =3D mck_div[mck_id]; + + if (div_clk_id < 0) { + dev_err(afe->dev, "div_clk_id =3D %d < 0\n", + div_clk_id); + return -EINVAL; + } + + ret =3D mt8196_afe_set_clk_rate(afe, afe_priv->clk[div_clk_id], MT8196_AF= E_26M); + if (ret) + return ret; + + mt8196_afe_disable_clk(afe, afe_priv->clk[div_clk_id]); + + return 0; +} + +int mt8196_afe_enable_reg_rw_clk(struct mtk_base_afe *afe) +{ + struct mt8196_afe_private *afe_priv =3D afe->platform_priv; + int ret; + + /* bus clock for AFE external access, like DRAM */ + mt8196_afe_enable_clk(afe, afe_priv->clk[MT8196_CLK_TOP_ADSP_SEL]); + + /* bus clock for AFE internal access, like AFE SRAM */ + mt8196_afe_enable_clk(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AUDIOINTBUS]); + ret =3D mt8196_afe_set_clk_rate(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AUD= IOINTBUS], + MT8196_AFE_26M); + if (ret) + return ret; + + /* enable audio h clock */ + mt8196_afe_enable_clk(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AUDIO_H]); + ret =3D mt8196_afe_set_clk_rate(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AUD= IO_H], + MT8196_AFE_26M); + if (ret) + return ret; + + /* AFE hw clock */ + /* IPM2.0: USE HOPPING & 26M */ + /* set in the regmap_register_patch */ + return 0; +} + +int mt8196_afe_disable_reg_rw_clk(struct mtk_base_afe *afe) +{ + struct mt8196_afe_private *afe_priv =3D afe->platform_priv; + + /* IPM2.0: Use HOPPING & 26M */ + /* set in the regmap_register_patch */ + + mt8196_afe_disable_clk(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AUDIO_H]); + mt8196_afe_disable_clk(afe, afe_priv->clk[MT8196_CLK_VLP_MUX_AUDIOINTBUS]= ); + mt8196_afe_disable_clk(afe, afe_priv->clk[MT8196_CLK_TOP_ADSP_SEL]); + return 0; +} + +int mt8196_afe_enable_main_clock(struct mtk_base_afe *afe) +{ + mt8196_afe_enable_top_cg(afe, MT8196_AUDIO_26M_EN_ON); + return 0; +} + +int mt8196_afe_disable_main_clock(struct mtk_base_afe *afe) +{ + mt8196_afe_disable_top_cg(afe, MT8196_AUDIO_26M_EN_ON); + return 0; +} + +int mt8196_init_clock(struct mtk_base_afe *afe) +{ + struct mt8196_afe_private *afe_priv =3D afe->platform_priv; + int i; + + afe_priv->clk =3D devm_kcalloc(afe->dev, MT8196_CLK_NUM, sizeof(*afe_priv= ->clk), + GFP_KERNEL); + if (!afe_priv->clk) + return -ENOMEM; + + for (i =3D 0; i < MT8196_CLK_NUM; i++) { + afe_priv->clk[i] =3D devm_clk_get(afe->dev, aud_clks[i]); + if (IS_ERR(afe_priv->clk[i])) { + dev_err(afe->dev, "devm_clk_get %s fail\n", aud_clks[i]); + return PTR_ERR(afe_priv->clk[i]); + } + } + + return 0; +} + diff --git a/sound/soc/mediatek/mt8196/mt8196-afe-clk.h b/sound/soc/mediate= k/mt8196/mt8196-afe-clk.h new file mode 100644 index 000000000000..7d47dcff768b --- /dev/null +++ b/sound/soc/mediatek/mt8196/mt8196-afe-clk.h @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * mt8196-afe-clk.h -- Mediatek MT8196 AFE Clock Control definitions + * + * Copyright (c) 2025 MediaTek Inc. + * Author: Darren Ye + */ + +#ifndef _MT8196_AFE_CLOCK_CTRL_H_ +#define _MT8196_AFE_CLOCK_CTRL_H_ + +#define MT8196_AFE_26M 26000000 +#define MT8196_AUD_ENG1_CLK 45158400 +#define MT8196_AUD_ENG2_CLK 49152000 + +/* APLL */ +#define APLL1_W_NAME "APLL1" +#define APLL2_W_NAME "APLL2" + +enum { + MT8196_APLL1 =3D 0, + MT8196_APLL2, +}; + +enum { + /* vlp clk */ + MT8196_CLK_VLP_MUX_AUDIOINTBUS, + MT8196_CLK_VLP_MUX_AUD_ENG1, + MT8196_CLK_VLP_MUX_AUD_ENG2, + MT8196_CLK_VLP_MUX_AUDIO_H, + /* pll */ + MT8196_CLK_TOP_APLL1_CK, + MT8196_CLK_TOP_APLL2_CK, + /* divider */ + MT8196_CLK_TOP_APLL12_DIV_I2SIN0, + MT8196_CLK_TOP_APLL12_DIV_I2SIN1, + MT8196_CLK_TOP_APLL12_DIV_FMI2S, + MT8196_CLK_TOP_APLL12_DIV_TDMOUT_M, + MT8196_CLK_TOP_APLL12_DIV_TDMOUT_B, + /* mux */ + MT8196_CLK_TOP_ADSP_SEL, + MT8196_CLK_NUM, +}; + +struct mtk_base_afe; + +int mt8196_mck_enable(struct mtk_base_afe *afe, int mck_id, int rate); +int mt8196_mck_disable(struct mtk_base_afe *afe, int mck_id); +int mt8196_get_apll_rate(struct mtk_base_afe *afe, int apll); +int mt8196_get_apll_by_rate(struct mtk_base_afe *afe, int rate); +int mt8196_get_apll_by_name(struct mtk_base_afe *afe, const char *name); +int mt8196_init_clock(struct mtk_base_afe *afe); +int mt8196_afe_enable_clk(struct mtk_base_afe *afe, struct clk *clk); +void mt8196_afe_disable_clk(struct mtk_base_afe *afe, struct clk *clk); +int mt8196_apll1_enable(struct mtk_base_afe *afe); +void mt8196_apll1_disable(struct mtk_base_afe *afe); +int mt8196_apll2_enable(struct mtk_base_afe *afe); +void mt8196_apll2_disable(struct mtk_base_afe *afe); +int mt8196_afe_enable_main_clock(struct mtk_base_afe *afe); +int mt8196_afe_disable_main_clock(struct mtk_base_afe *afe); +int mt8196_afe_enable_reg_rw_clk(struct mtk_base_afe *afe); +int mt8196_afe_disable_reg_rw_clk(struct mtk_base_afe *afe); + +#endif --=20 2.45.2