From patchwork Thu Feb 12 02:10:08 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kenneth Westfield X-Patchwork-Id: 5815381 Return-Path: X-Original-To: patchwork-linux-arm-msm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 88979BF440 for ; Thu, 12 Feb 2015 02:11:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8FB53201ED for ; Thu, 12 Feb 2015 02:11:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 403C120220 for ; Thu, 12 Feb 2015 02:11:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752185AbbBLCK5 (ORCPT ); Wed, 11 Feb 2015 21:10:57 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:55717 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754619AbbBLCKZ (ORCPT ); Wed, 11 Feb 2015 21:10:25 -0500 Received: from smtp.codeaurora.org (localhost [127.0.0.1]) by smtp.codeaurora.org (Postfix) with ESMTP id 6245E140BF2; Thu, 12 Feb 2015 02:10:25 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 486) id 5117F140BFA; Thu, 12 Feb 2015 02:10:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from localhost (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: kwestfie@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 9AA21140BFB; Thu, 12 Feb 2015 02:10:24 +0000 (UTC) From: Kenneth Westfield To: Mark Brown , Takashi Iwai , Liam Girdwood , David Brown , Bryan Huntsman , Greg KH , Banajit Goswami , Patrick Lai Cc: ALSA Mailing List , Device Tree Mailing List , MSM Mailing List , Kenneth Westfield Subject: [Patch V5 05/12] ASoC: codec: Add MAX98357A codec driver Date: Wed, 11 Feb 2015 18:10:08 -0800 Message-Id: <1423707015-14527-6-git-send-email-kwestfie@codeaurora.org> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1423707015-14527-1-git-send-email-kwestfie@codeaurora.org> References: <1423707015-14527-1-git-send-email-kwestfie@codeaurora.org> X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Kenneth Westfield Add codec driver for the Maxim MAX98357A DAC. Signed-off-by: Kenneth Westfield Acked-by: Banajit Goswami --- sound/soc/codecs/Kconfig | 4 ++ sound/soc/codecs/Makefile | 2 + sound/soc/codecs/max98357a.c | 145 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 151 insertions(+) create mode 100644 sound/soc/codecs/max98357a.c diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 8349f982a586841a3ac9e7b0526af05699c7deaf..0500b3ed5fa5ac4d45663ad659da9db3003bc5a3 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -69,6 +69,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_MAX98088 if I2C select SND_SOC_MAX98090 if I2C select SND_SOC_MAX98095 if I2C + select SND_SOC_MAX98357A if GPIOLIB select SND_SOC_MAX9850 if I2C select SND_SOC_MAX9768 if I2C select SND_SOC_MAX9877 if I2C @@ -456,6 +457,9 @@ config SND_SOC_MAX98090 config SND_SOC_MAX98095 tristate +config SND_SOC_MAX98357A + tristate + config SND_SOC_MAX9850 tristate diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index bbdfd1e1c182f9ee102f532f391f522e77a8922b..69b8666d187a0e8d1e2a532e68e2509acc95da7e 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -64,6 +64,7 @@ snd-soc-max9768-objs := max9768.o snd-soc-max98088-objs := max98088.o snd-soc-max98090-objs := max98090.o snd-soc-max98095-objs := max98095.o +snd-soc-max98357a-objs := max98357a.o snd-soc-max9850-objs := max9850.o snd-soc-mc13783-objs := mc13783.o snd-soc-ml26124-objs := ml26124.o @@ -245,6 +246,7 @@ obj-$(CONFIG_SND_SOC_MAX9768) += snd-soc-max9768.o obj-$(CONFIG_SND_SOC_MAX98088) += snd-soc-max98088.o obj-$(CONFIG_SND_SOC_MAX98090) += snd-soc-max98090.o obj-$(CONFIG_SND_SOC_MAX98095) += snd-soc-max98095.o +obj-$(CONFIG_SND_SOC_MAX98357A) += snd-soc-max98357a.o obj-$(CONFIG_SND_SOC_MAX9850) += snd-soc-max9850.o obj-$(CONFIG_SND_SOC_MC13783) += snd-soc-mc13783.o obj-$(CONFIG_SND_SOC_ML26124) += snd-soc-ml26124.o diff --git a/sound/soc/codecs/max98357a.c b/sound/soc/codecs/max98357a.c new file mode 100644 index 0000000000000000000000000000000000000000..4ee23fbc4e1237268ae104319a9cfe4fc369934e --- /dev/null +++ b/sound/soc/codecs/max98357a.c @@ -0,0 +1,145 @@ +/* Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * max98357a.c -- MAX98357A ALSA SoC Codec driver + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static int max98357a_daiops_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) +{ + struct gpio_desc *sdmode = snd_soc_dai_get_drvdata(dai); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + gpiod_set_value(sdmode, 1); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + gpiod_set_value(sdmode, 0); + break; + } + + return 0; +} + +static const struct snd_soc_dapm_widget max98357a_dapm_widgets[] = { + SND_SOC_DAPM_DAC("SDMode", NULL, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_OUTPUT("Speaker"), +}; + +static const struct snd_soc_dapm_route max98357a_dapm_routes[] = { + {"Speaker", NULL, "SDMode"}, +}; + +static int max98357a_codec_probe(struct snd_soc_codec *codec) +{ + struct gpio_desc *sdmode; + + sdmode = devm_gpiod_get(codec->dev, "sdmode"); + if (IS_ERR(sdmode)) { + dev_err(codec->dev, "%s() unable to get sdmode GPIO: %ld\n", + __func__, PTR_ERR(sdmode)); + return PTR_ERR(sdmode); + } + gpiod_direction_output(sdmode, 0); + snd_soc_codec_set_drvdata(codec, sdmode); + + return 0; +} + +static struct snd_soc_codec_driver max98357a_codec_driver = { + .probe = max98357a_codec_probe, + .dapm_widgets = max98357a_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(max98357a_dapm_widgets), + .dapm_routes = max98357a_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(max98357a_dapm_routes), +}; + +static struct snd_soc_dai_ops max98357a_dai_ops = { + .trigger = max98357a_daiops_trigger, +}; + +static struct snd_soc_dai_driver max98357a_dai_driver = { + .name = "max98357a", + .playback = { + .stream_name = "max98357a-playback", + .formats = SNDRV_PCM_FMTBIT_S16 | + SNDRV_PCM_FMTBIT_S24 | + SNDRV_PCM_FMTBIT_S32, + .rates = SNDRV_PCM_RATE_8000 | + SNDRV_PCM_RATE_16000 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_96000, + .rate_min = 8000, + .rate_max = 96000, + .channels_min = 1, + .channels_max = 2, + }, + .ops = &max98357a_dai_ops, +}; + +static int max98357a_platform_probe(struct platform_device *pdev) +{ + int ret; + + ret = snd_soc_register_codec(&pdev->dev, &max98357a_codec_driver, + &max98357a_dai_driver, 1); + if (ret) + dev_err(&pdev->dev, "%s() error registering codec driver: %d\n", + __func__, ret); + + return ret; +} + +static int max98357a_platform_remove(struct platform_device *pdev) +{ + snd_soc_unregister_codec(&pdev->dev); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id max98357a_device_id[] = { + { .compatible = "maxim,max98357a" }, + {} +}; +MODULE_DEVICE_TABLE(of, max98357a_device_id); +#endif + +static struct platform_driver max98357a_platform_driver = { + .driver = { + .name = "max98357a", + .of_match_table = of_match_ptr(max98357a_device_id), + }, + .probe = max98357a_platform_probe, + .remove = max98357a_platform_remove, +}; +module_platform_driver(max98357a_platform_driver); + +MODULE_DESCRIPTION("Maxim MAX98357A Codec Driver"); +MODULE_LICENSE("GPL v2");