From patchwork Thu Jun 22 06:51:58 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shawn Guo X-Patchwork-Id: 9803593 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id CEE916086C for ; Thu, 22 Jun 2017 07:06:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BB9DE28545 for ; Thu, 22 Jun 2017 07:06:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AFC4E28641; Thu, 22 Jun 2017 07:06:13 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id D24ED28545 for ; Thu, 22 Jun 2017 07:06:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=XbOTHwWgZ68lWTxlPyDPMHqObbjDSghK4sYo3rwHatg=; b=eOYYnPLGw8YqNUYpDFlXhm6llF DogYMHAr0udSfGIW42/NOBDZmKzF4x+iAHO6xQwbmKuQMax6JafZ157ngb/rIA86A+URbe5jYJSnZ lVc5GwpDgJ1a1PJeULP1f6BnNfn12dcDTyCumT38g0CxNIJiI05n8YqjDr5KPUesL70H4Vkk/e/wb YgLu7nvKaEMRQalsmW13996rtaJoy4Fc3urchIoh3x+VefboQ+CelUysIwvHjsPvPt45rQ/bcAaRM gYoVXLKkkMkZNb0lQ9mNWhU+4cSSvSGKEHIX5R7yRlnXE2BSmmXyghBcGK9+fEvXuxwpxkVMSRdjd J5WEsYxg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dNwBw-0003Oj-Hx; Thu, 22 Jun 2017 07:06:12 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dNvzZ-00068H-I3 for linux-arm-kernel@lists.infradead.org; Thu, 22 Jun 2017 06:53:29 +0000 Received: from localhost.localdomain (li411-102.members.linode.com [106.187.91.102]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 85F6022B63; Thu, 22 Jun 2017 06:53:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 85F6022B63 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=shawnguo@kernel.org From: Shawn Guo To: Mark Brown Subject: [PATCH v2 2/2] ASoC: zx_aud96p22: add ZTE ZX AUD96P22 codec driver Date: Thu, 22 Jun 2017 14:51:58 +0800 Message-Id: <1498114318-32077-3-git-send-email-shawnguo@kernel.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1498114318-32077-1-git-send-email-shawnguo@kernel.org> References: <1498114318-32077-1-git-send-email-shawnguo@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170621_235325_789431_3233E696 X-CRM114-Status: GOOD ( 20.98 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, Shawn Guo , Baoyou Xie , Xin Zhou , Jun Nie , Baoyou Xie , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Baoyou Xie It adds ASoC driver for AUD96P22 stereo audio codec integrated on ZTE ZX family SoCs. The driver includes the support for a number of volume and mute controls, and power bits for various playback and recording components. Due to that the board for testing only supports playback, recording support is untested. Signed-off-by: Baoyou Xie Signed-off-by: Shawn Guo --- sound/soc/codecs/Kconfig | 5 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/zx_aud96p22.c | 403 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 410 insertions(+) create mode 100644 sound/soc/codecs/zx_aud96p22.c diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index c6286e5ba511..08f7b0861bc1 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -1118,6 +1118,11 @@ config SND_SOC_WM9713 tristate select REGMAP_AC97 +config SND_SOC_ZX_AUD96P22 + tristate "ZTE ZX AUD96P22 CODEC" + depends on I2C + select REGMAP_I2C + # Amp config SND_SOC_LM4857 tristate diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index e878306ce46e..1755a54e3dc9 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -225,6 +225,7 @@ snd-soc-wm9705-objs := wm9705.o snd-soc-wm9712-objs := wm9712.o snd-soc-wm9713-objs := wm9713.o snd-soc-wm-hubs-objs := wm_hubs.o +snd-soc-zx-aud96p22-objs := zx_aud96p22.o # Amp snd-soc-dio2125-objs := dio2125.o snd-soc-max9877-objs := max9877.o @@ -457,6 +458,7 @@ obj-$(CONFIG_SND_SOC_WM9712) += snd-soc-wm9712.o obj-$(CONFIG_SND_SOC_WM9713) += snd-soc-wm9713.o obj-$(CONFIG_SND_SOC_WM_ADSP) += snd-soc-wm-adsp.o obj-$(CONFIG_SND_SOC_WM_HUBS) += snd-soc-wm-hubs.o +obj-$(CONFIG_SND_SOC_ZX_AUD96P22) += snd-soc-zx-aud96p22.o # Amp obj-$(CONFIG_SND_SOC_DIO2125) += snd-soc-dio2125.o diff --git a/sound/soc/codecs/zx_aud96p22.c b/sound/soc/codecs/zx_aud96p22.c new file mode 100644 index 000000000000..032fb7cf6cbd --- /dev/null +++ b/sound/soc/codecs/zx_aud96p22.c @@ -0,0 +1,403 @@ +/* + * Copyright (C) 2017 Sanechips Technology Co., Ltd. + * Copyright 2017 Linaro Ltd. + * + * Author: Baoyou Xie + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define AUD96P22_RESET 0x00 +#define RST_DAC_DPZ BIT(0) +#define RST_ADC_DPZ BIT(1) +#define AUD96P22_I2S1_CONFIG_0 0x03 +#define I2S1_MS_MODE BIT(3) +#define I2S1_MODE_MASK 0x7 +#define I2S1_MODE_RIGHT_J 0x0 +#define I2S1_MODE_I2S 0x1 +#define I2S1_MODE_LEFT_J 0x2 +#define AUD96P22_PD_0 0x15 +#define AUD96P22_PD_1 0x16 +#define AUD96P22_PD_3 0x18 +#define AUD96P22_PD_4 0x19 +#define AUD96P22_MUTE_0 0x1d +#define AUD96P22_MUTE_2 0x1f +#define AUD96P22_MUTE_4 0x21 +#define AUD96P22_RECVOL_0 0x24 +#define AUD96P22_RECVOL_1 0x25 +#define AUD96P22_PGA1VOL_0 0x26 +#define AUD96P22_PGA1VOL_1 0x27 +#define AUD96P22_LMVOL_0 0x34 +#define AUD96P22_LMVOL_1 0x35 +#define AUD96P22_HS1VOL_0 0x38 +#define AUD96P22_HS1VOL_1 0x39 +#define AUD96P22_PGA1SEL_0 0x47 +#define AUD96P22_PGA1SEL_1 0x48 +#define AUD96P22_LDR1SEL_0 0x59 +#define AUD96P22_LDR1SEL_1 0x60 +#define AUD96P22_LDR2SEL_0 0x5d +#define AUD96P22_REG_MAX 0xfb + +struct aud96p22_priv { + struct regmap *regmap; +}; + +static int aud96p22_adc_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + struct aud96p22_priv *priv = snd_soc_codec_get_drvdata(codec); + struct regmap *regmap = priv->regmap; + + if (event != SND_SOC_DAPM_POST_PMU) + return -EINVAL; + + /* Assert/de-assert the bit to reset ADC data path */ + regmap_update_bits(regmap, AUD96P22_RESET, RST_ADC_DPZ, 0); + regmap_update_bits(regmap, AUD96P22_RESET, RST_ADC_DPZ, RST_ADC_DPZ); + + return 0; +} + +static int aud96p22_dac_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + struct aud96p22_priv *priv = snd_soc_codec_get_drvdata(codec); + struct regmap *regmap = priv->regmap; + + if (event != SND_SOC_DAPM_POST_PMU) + return -EINVAL; + + /* Assert/de-assert the bit to reset DAC data path */ + regmap_update_bits(regmap, AUD96P22_RESET, RST_DAC_DPZ, 0); + regmap_update_bits(regmap, AUD96P22_RESET, RST_DAC_DPZ, RST_DAC_DPZ); + + return 0; +} + +static const DECLARE_TLV_DB_SCALE(lm_tlv, -11550, 50, 0); +static const DECLARE_TLV_DB_SCALE(hs_tlv, -3900, 300, 0); +static const DECLARE_TLV_DB_SCALE(rec_tlv, -9550, 50, 0); +static const DECLARE_TLV_DB_SCALE(pga_tlv, -1800, 100, 0); + +static const struct snd_kcontrol_new aud96p22_snd_controls[] = { + /* Volume control */ + SOC_DOUBLE_R_TLV("Master Playback Volume", AUD96P22_LMVOL_0, + AUD96P22_LMVOL_1, 0, 0xff, 0, lm_tlv), + SOC_DOUBLE_R_TLV("Headphone Volume", AUD96P22_HS1VOL_0, + AUD96P22_HS1VOL_1, 0, 0xf, 0, hs_tlv), + SOC_DOUBLE_R_TLV("Master Capture Volume", AUD96P22_RECVOL_0, + AUD96P22_RECVOL_1, 0, 0xff, 0, rec_tlv), + SOC_DOUBLE_R_TLV("Analogue Capture Volume", AUD96P22_PGA1VOL_0, + AUD96P22_PGA1VOL_1, 0, 0x37, 0, pga_tlv), + + /* Mute control */ + SOC_DOUBLE("Master Playback Switch", AUD96P22_MUTE_2, 0, 1, 1, 1), + SOC_DOUBLE("Headphone Switch", AUD96P22_MUTE_2, 4, 5, 1, 1), + SOC_DOUBLE("Line Out Switch", AUD96P22_MUTE_4, 0, 1, 1, 1), + SOC_DOUBLE("Speaker Switch", AUD96P22_MUTE_4, 2, 3, 1, 1), + SOC_DOUBLE("Master Capture Switch", AUD96P22_MUTE_0, 0, 1, 1, 1), + SOC_DOUBLE("Analogue Capture Switch", AUD96P22_MUTE_0, 2, 3, 1, 1), +}; + +/* Input mux kcontrols */ +static const unsigned int ain_mux_values[] = { + 0, 1, 3, 4, 5, +}; + +static const char * const ainl_mux_texts[] = { + "AINL1 differential", + "AINL1 single-ended", + "AINL3 single-ended", + "AINL2 differential", + "AINL2 single-ended", +}; + +static const char * const ainr_mux_texts[] = { + "AINR1 differential", + "AINR1 single-ended", + "AINR3 single-ended", + "AINR2 differential", + "AINR2 single-ended", +}; + +static SOC_VALUE_ENUM_SINGLE_DECL(ainl_mux_enum, AUD96P22_PGA1SEL_0, + 0, 0x7, ainl_mux_texts, ain_mux_values); +static SOC_VALUE_ENUM_SINGLE_DECL(ainr_mux_enum, AUD96P22_PGA1SEL_1, + 0, 0x7, ainr_mux_texts, ain_mux_values); + +static const struct snd_kcontrol_new ainl_mux_kcontrol = + SOC_DAPM_ENUM("AINL Mux", ainl_mux_enum); +static const struct snd_kcontrol_new ainr_mux_kcontrol = + SOC_DAPM_ENUM("AINR Mux", ainr_mux_enum); + +/* Output mixer kcontrols */ +static const struct snd_kcontrol_new ld1_left_kcontrols[] = { + SOC_DAPM_SINGLE("DACL LD1L Switch", AUD96P22_LDR1SEL_0, 0, 1, 0), + SOC_DAPM_SINGLE("AINL LD1L Switch", AUD96P22_LDR1SEL_0, 1, 1, 0), + SOC_DAPM_SINGLE("AINR LD1L Switch", AUD96P22_LDR1SEL_0, 2, 1, 0), +}; + +static const struct snd_kcontrol_new ld1_right_kcontrols[] = { + SOC_DAPM_SINGLE("DACR LD1R Switch", AUD96P22_LDR1SEL_1, 8, 1, 0), + SOC_DAPM_SINGLE("AINR LD1R Switch", AUD96P22_LDR1SEL_1, 9, 1, 0), + SOC_DAPM_SINGLE("AINL LD1R Switch", AUD96P22_LDR1SEL_1, 10, 1, 0), +}; + +static const struct snd_kcontrol_new ld2_kcontrols[] = { + SOC_DAPM_SINGLE("DACL LD2 Switch", AUD96P22_LDR2SEL_0, 0, 1, 0), + SOC_DAPM_SINGLE("AINL LD2 Switch", AUD96P22_LDR2SEL_0, 1, 1, 0), + SOC_DAPM_SINGLE("DACR LD2 Switch", AUD96P22_LDR2SEL_0, 2, 1, 0), +}; + +static const struct snd_soc_dapm_widget aud96p22_dapm_widgets[] = { + /* Overall power bit */ + SND_SOC_DAPM_SUPPLY("POWER", AUD96P22_PD_0, 0, 0, NULL, 0), + + /* Input pins */ + SND_SOC_DAPM_INPUT("AINL1P"), + SND_SOC_DAPM_INPUT("AINL2P"), + SND_SOC_DAPM_INPUT("AINL3"), + SND_SOC_DAPM_INPUT("AINL1N"), + SND_SOC_DAPM_INPUT("AINL2N"), + SND_SOC_DAPM_INPUT("AINR2N"), + SND_SOC_DAPM_INPUT("AINR1N"), + SND_SOC_DAPM_INPUT("AINR3"), + SND_SOC_DAPM_INPUT("AINR2P"), + SND_SOC_DAPM_INPUT("AINR1P"), + + /* Input muxes */ + SND_SOC_DAPM_MUX("AINLMUX", AUD96P22_PD_1, 2, 0, &ainl_mux_kcontrol), + SND_SOC_DAPM_MUX("AINRMUX", AUD96P22_PD_1, 3, 0, &ainr_mux_kcontrol), + + /* ADCs */ + SND_SOC_DAPM_ADC_E("ADCL", "Capture Left", AUD96P22_PD_1, 0, 0, + aud96p22_adc_event, SND_SOC_DAPM_POST_PMU), + SND_SOC_DAPM_ADC_E("ADCR", "Capture Right", AUD96P22_PD_1, 1, 0, + aud96p22_adc_event, SND_SOC_DAPM_POST_PMU), + + /* DACs */ + SND_SOC_DAPM_DAC_E("DACL", "Playback Left", AUD96P22_PD_3, 0, 0, + aud96p22_dac_event, SND_SOC_DAPM_POST_PMU), + SND_SOC_DAPM_DAC_E("DACR", "Playback Right", AUD96P22_PD_3, 1, 0, + aud96p22_dac_event, SND_SOC_DAPM_POST_PMU), + + /* Output mixers */ + SND_SOC_DAPM_MIXER("LD1L", AUD96P22_PD_3, 6, 0, ld1_left_kcontrols, + ARRAY_SIZE(ld1_left_kcontrols)), + SND_SOC_DAPM_MIXER("LD1R", AUD96P22_PD_3, 7, 0, ld1_right_kcontrols, + ARRAY_SIZE(ld1_right_kcontrols)), + SND_SOC_DAPM_MIXER("LD2", AUD96P22_PD_4, 2, 0, ld2_kcontrols, + ARRAY_SIZE(ld2_kcontrols)), + + /* Headset power switch */ + SND_SOC_DAPM_SUPPLY("HS1L", AUD96P22_PD_3, 4, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("HS1R", AUD96P22_PD_3, 5, 0, NULL, 0), + + /* Output pins */ + SND_SOC_DAPM_OUTPUT("HSOUTL"), + SND_SOC_DAPM_OUTPUT("LINEOUTL"), + SND_SOC_DAPM_OUTPUT("LINEOUTMP"), + SND_SOC_DAPM_OUTPUT("LINEOUTMN"), + SND_SOC_DAPM_OUTPUT("LINEOUTR"), + SND_SOC_DAPM_OUTPUT("HSOUTR"), +}; + +static const struct snd_soc_dapm_route aud96p22_dapm_routes[] = { + { "AINLMUX", "AINL1 differential", "AINL1N" }, + { "AINLMUX", "AINL1 single-ended", "AINL1P" }, + { "AINLMUX", "AINL3 single-ended", "AINL3" }, + { "AINLMUX", "AINL2 differential", "AINL2N" }, + { "AINLMUX", "AINL2 single-ended", "AINL2P" }, + + { "AINRMUX", "AINR1 differential", "AINR1N" }, + { "AINRMUX", "AINR1 single-ended", "AINR1P" }, + { "AINRMUX", "AINR3 single-ended", "AINR3" }, + { "AINRMUX", "AINR2 differential", "AINR2N" }, + { "AINRMUX", "AINR2 single-ended", "AINR2P" }, + + { "ADCL", NULL, "AINLMUX" }, + { "ADCR", NULL, "AINRMUX" }, + + { "ADCL", NULL, "POWER" }, + { "ADCR", NULL, "POWER" }, + { "DACL", NULL, "POWER" }, + { "DACR", NULL, "POWER" }, + + { "LD1L", "DACL LD1L Switch", "DACL" }, + { "LD1L", "AINL LD1L Switch", "AINLMUX" }, + { "LD1L", "AINR LD1L Switch", "AINRMUX" }, + + { "LD1R", "DACR LD1R Switch", "DACR" }, + { "LD1R", "AINR LD1R Switch", "AINRMUX" }, + { "LD1R", "AINL LD1R Switch", "AINLMUX" }, + + { "LD2", "DACL LD2 Switch", "DACL" }, + { "LD2", "AINL LD2 Switch", "AINLMUX" }, + { "LD2", "DACR LD2 Switch", "DACR" }, + + { "HSOUTL", NULL, "LD1L" }, + { "HSOUTR", NULL, "LD1R" }, + { "HSOUTL", NULL, "HS1L" }, + { "HSOUTR", NULL, "HS1R" }, + + { "LINEOUTL", NULL, "LD1L" }, + { "LINEOUTR", NULL, "LD1R" }, + + { "LINEOUTMP", NULL, "LD2" }, + { "LINEOUTMN", NULL, "LD2" }, +}; + +static struct snd_soc_codec_driver aud96p22_driver = { + .component_driver = { + .controls = aud96p22_snd_controls, + .num_controls = ARRAY_SIZE(aud96p22_snd_controls), + .dapm_widgets = aud96p22_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(aud96p22_dapm_widgets), + .dapm_routes = aud96p22_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(aud96p22_dapm_routes), + }, +}; + +static int aud96p22_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct aud96p22_priv *priv = snd_soc_codec_get_drvdata(dai->codec); + struct regmap *regmap = priv->regmap; + unsigned int val; + + /* Master/slave mode */ + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + val = 0; + break; + case SND_SOC_DAIFMT_CBM_CFM: + val = I2S1_MS_MODE; + break; + default: + return -EINVAL; + } + + regmap_update_bits(regmap, AUD96P22_I2S1_CONFIG_0, I2S1_MS_MODE, val); + + /* Audio format */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_RIGHT_J: + val = I2S1_MODE_RIGHT_J; + break; + case SND_SOC_DAIFMT_I2S: + val = I2S1_MODE_I2S; + break; + case SND_SOC_DAIFMT_LEFT_J: + val = I2S1_MODE_LEFT_J; + break; + default: + return -EINVAL; + } + + regmap_update_bits(regmap, AUD96P22_I2S1_CONFIG_0, I2S1_MODE_MASK, val); + + return 0; +} + +static struct snd_soc_dai_ops aud96p22_dai_ops = { + .set_fmt = aud96p22_set_fmt, +}; + +#define AUD96P22_RATES SNDRV_PCM_RATE_8000_192000 +#define AUD96P22_FORMATS (\ + SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S18_3LE | \ + SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE) + +static struct snd_soc_dai_driver aud96p22_dai = { + .name = "aud96p22-dai", + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = 2, + .rates = AUD96P22_RATES, + .formats = AUD96P22_FORMATS, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 2, + .rates = AUD96P22_RATES, + .formats = AUD96P22_FORMATS, + }, + .ops = &aud96p22_dai_ops, +}; + +static const struct regmap_config aud96p22_regmap = { + .reg_bits = 8, + .val_bits = 8, + .max_register = AUD96P22_REG_MAX, + .cache_type = REGCACHE_RBTREE, +}; + +static int aud96p22_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct device *dev = &i2c->dev; + struct aud96p22_priv *priv; + int ret; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (priv == NULL) + return -ENOMEM; + + priv->regmap = devm_regmap_init_i2c(i2c, &aud96p22_regmap); + if (IS_ERR(priv->regmap)) { + ret = PTR_ERR(priv->regmap); + dev_err(dev, "failed to init i2c regmap: %d\n", ret); + return ret; + } + + i2c_set_clientdata(i2c, priv); + + ret = snd_soc_register_codec(dev, &aud96p22_driver, &aud96p22_dai, 1); + if (ret) { + dev_err(dev, "failed to register codec: %d\n", ret); + return ret; + } + + return 0; +} + +static int aud96p22_i2c_remove(struct i2c_client *i2c) +{ + snd_soc_unregister_codec(&i2c->dev); + return 0; +} + +const struct of_device_id aud96p22_dt_ids[] = { + { .compatible = "zte,zx-aud96p22", }, + { } +}; +MODULE_DEVICE_TABLE(of, aud96p22_dt_ids); + +static struct i2c_driver aud96p22_i2c_driver = { + .driver = { + .name = "zx_aud96p22", + .of_match_table = aud96p22_dt_ids, + }, + .probe = aud96p22_i2c_probe, + .remove = aud96p22_i2c_remove, +}; +module_i2c_driver(aud96p22_i2c_driver); + +MODULE_DESCRIPTION("ZTE ASoC AUD96P22 CODEC driver"); +MODULE_AUTHOR("Baoyou Xie "); +MODULE_LICENSE("GPL v2");