Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753240AbbD3V25 (ORCPT ); Thu, 30 Apr 2015 17:28:57 -0400 Received: from mail-wi0-f173.google.com ([209.85.212.173]:35191 "EHLO mail-wi0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751408AbbD3V2R (ORCPT ); Thu, 30 Apr 2015 17:28:17 -0400 From: Marek Belisko To: perex@perex.cz, tiwai@suse.de Cc: broonie@kernel.org, hns@goldelico.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org, Marek Belisko Subject: [PATCH 1/3] ASoC: Add gtm601 codec driver Date: Thu, 30 Apr 2015 23:28:01 +0200 Message-Id: <1430429283-27907-2-git-send-email-marek@goldelico.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1430429283-27907-1-git-send-email-marek@goldelico.com> References: <1430429283-27907-1-git-send-email-marek@goldelico.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5077 Lines: 173 This driver add PCM interface to a GTM601 UMTS modem chip. There is no configuration interface. Signed-off-by: Marek Belisko --- sound/soc/codecs/Kconfig | 4 ++ sound/soc/codecs/Makefile | 2 + sound/soc/codecs/gtm601.c | 106 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 112 insertions(+) create mode 100644 sound/soc/codecs/gtm601.c diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 061c465..c399a5d 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -170,6 +170,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_WM9705 if SND_SOC_AC97_BUS select SND_SOC_WM9712 if SND_SOC_AC97_BUS select SND_SOC_WM9713 if SND_SOC_AC97_BUS + select SND_SOC_GTM601 help Normally ASoC codec drivers are only built if a machine driver which uses them is also built since they are only usable with a machine @@ -844,6 +845,9 @@ config SND_SOC_WM9712 config SND_SOC_WM9713 tristate +config SND_SOC_GTM601 + tristate 'GTM601 UMTS modem audio codec' + # Amp config SND_SOC_LM4857 tristate diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index abe2d7e..bcafd4a 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -175,6 +175,7 @@ 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-gtm601-objs := gtm601.o # Amp snd-soc-max9877-objs := max9877.o @@ -357,6 +358,7 @@ 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-$(CONFIG_SND_SOC_GTM601) += snd-soc-gtm601.o # Amp obj-$(CONFIG_SND_SOC_MAX9877) += snd-soc-max9877.o diff --git a/sound/soc/codecs/gtm601.c b/sound/soc/codecs/gtm601.c new file mode 100644 index 0000000..05234a1 --- /dev/null +++ b/sound/soc/codecs/gtm601.c @@ -0,0 +1,106 @@ +/* + * This is a simple driver for the GTM601 Voice PCM interface + * + * Copyright (C) 2015 Goldelico GmbH + * + * Author: Marek Belisko + * + * Based on wm8727.c driver + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static const struct snd_soc_dapm_widget gtm601_dapm_widgets[] = { + SND_SOC_DAPM_OUTPUT("AOUT"), + SND_SOC_DAPM_INPUT("AIN"), +}; + +static const struct snd_soc_dapm_route gtm601_dapm_routes[] = { + { "AOUT", NULL, "Playback" }, + { "Capture", NULL, "AIN" }, +}; + +/* + * Note this is a simple chip with no configuration interface, sample rate is + * determined automatically by examining the Master clock and Bit clock ratios + */ + +#define GTM601_RATES (SNDRV_PCM_RATE_8000) + +struct snd_soc_dai_driver gtm601_dai = { + .name = "gtm601", + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = 1, + .rates = GTM601_RATES, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 1, + .rates = GTM601_RATES, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, +}; + +static struct snd_soc_codec_driver soc_codec_dev_gtm601 = { + .dapm_widgets = gtm601_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(gtm601_dapm_widgets), + .dapm_routes = gtm601_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(gtm601_dapm_routes), +}; + +static int gtm601_platform_probe(struct platform_device *pdev) +{ + return snd_soc_register_codec(&pdev->dev, + &soc_codec_dev_gtm601, >m601_dai, 1); +} + +static int gtm601_platform_remove(struct platform_device *pdev) +{ + snd_soc_unregister_codec(&pdev->dev); + return 0; +} + +MODULE_ALIAS("platform:gtm601_codec_audio"); + +#if defined(CONFIG_OF) +static const struct of_device_id gtm601_codec_of_match[] = { + { .compatible = "option,gtm601", }, + {}, +}; +MODULE_DEVICE_TABLE(of, gtm601_codec_of_match); +#endif + +static struct platform_driver gtm601_codec_driver = { + .driver = { + .name = "gtm601", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(gtm601_codec_of_match), + }, + + .probe = gtm601_platform_probe, + .remove = gtm601_platform_remove, +}; + +module_platform_driver(gtm601_codec_driver); + +MODULE_DESCRIPTION("ASoC gtm601 driver"); +MODULE_AUTHOR("Marek Belisko "); +MODULE_LICENSE("GPL v2"); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/