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- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * This is a simple driver for the GTM601 Voice PCM interface
- *
- * Copyright (C) 2015 Goldelico GmbH
- *
- * Author: Marek Belisko <[email protected]>
- *
- * Based on wm8727.c driver
- */
- #include <linux/init.h>
- #include <linux/slab.h>
- #include <linux/module.h>
- #include <linux/kernel.h>
- #include <linux/of_device.h>
- #include <sound/core.h>
- #include <sound/pcm.h>
- #include <sound/initval.h>
- #include <sound/soc.h>
- 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" },
- };
- static struct snd_soc_dai_driver gtm601_dai = {
- .name = "gtm601",
- .playback = {
- .stream_name = "Playback",
- .channels_min = 1,
- .channels_max = 1,
- .rates = SNDRV_PCM_RATE_8000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- },
- .capture = {
- .stream_name = "Capture",
- .channels_min = 1,
- .channels_max = 1,
- .rates = SNDRV_PCM_RATE_8000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- },
- };
- static struct snd_soc_dai_driver bm818_dai = {
- .name = "bm818",
- .playback = {
- .stream_name = "Playback",
- .channels_min = 2,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_48000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- },
- .capture = {
- .stream_name = "Capture",
- .channels_min = 2,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_48000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- },
- };
- static const struct snd_soc_component_driver soc_component_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),
- .idle_bias_on = 1,
- .use_pmdown_time = 1,
- .endianness = 1,
- };
- static int gtm601_platform_probe(struct platform_device *pdev)
- {
- const struct snd_soc_dai_driver *dai_driver;
- dai_driver = of_device_get_match_data(&pdev->dev);
- return devm_snd_soc_register_component(&pdev->dev,
- &soc_component_dev_gtm601,
- (struct snd_soc_dai_driver *)dai_driver, 1);
- }
- static const struct of_device_id gtm601_codec_of_match[] __maybe_unused = {
- { .compatible = "option,gtm601", .data = (void *)>m601_dai },
- { .compatible = "broadmobi,bm818", .data = (void *)&bm818_dai },
- {},
- };
- MODULE_DEVICE_TABLE(of, gtm601_codec_of_match);
- static struct platform_driver gtm601_codec_driver = {
- .driver = {
- .name = "gtm601",
- .of_match_table = of_match_ptr(gtm601_codec_of_match),
- },
- .probe = gtm601_platform_probe,
- };
- module_platform_driver(gtm601_codec_driver);
- MODULE_DESCRIPTION("ASoC gtm601 driver");
- MODULE_AUTHOR("Marek Belisko <[email protected]>");
- MODULE_LICENSE("GPL");
- MODULE_ALIAS("platform:gtm601");
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