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1// SPDX-License-Identifier: GPL-2.02// ak4554.c3//4// Copyright (C) 2013 Renesas Solutions Corp.5// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>6 7#include <linux/module.h>8#include <sound/soc.h>9 10/*11 * ak4554 is very simple DA/AD converter which has no setting register.12 *13 * CAUTION14 *15 * ak4554 playback format is SND_SOC_DAIFMT_RIGHT_J,16 * and, capture format is SND_SOC_DAIFMT_LEFT_J17 * on same bit clock, LR clock.18 * But, this driver doesn't have snd_soc_dai_ops :: set_fmt19 *20 * CPU/Codec DAI image21 *22 * CPU-DAI1 (plaback only fmt = RIGHT_J) --+-- ak455423 * |24 * CPU-DAI2 (capture only fmt = LEFT_J) ---+25 */26 27static const struct snd_soc_dapm_widget ak4554_dapm_widgets[] = {28SND_SOC_DAPM_INPUT("AINL"),29SND_SOC_DAPM_INPUT("AINR"),30 31SND_SOC_DAPM_OUTPUT("AOUTL"),32SND_SOC_DAPM_OUTPUT("AOUTR"),33};34 35static const struct snd_soc_dapm_route ak4554_dapm_routes[] = {36 { "Capture", NULL, "AINL" },37 { "Capture", NULL, "AINR" },38 39 { "AOUTL", NULL, "Playback" },40 { "AOUTR", NULL, "Playback" },41};42 43static struct snd_soc_dai_driver ak4554_dai = {44 .name = "ak4554-hifi",45 .playback = {46 .stream_name = "Playback",47 .channels_min = 2,48 .channels_max = 2,49 .rates = SNDRV_PCM_RATE_8000_48000,50 .formats = SNDRV_PCM_FMTBIT_S16_LE,51 },52 .capture = {53 .stream_name = "Capture",54 .channels_min = 2,55 .channels_max = 2,56 .rates = SNDRV_PCM_RATE_8000_48000,57 .formats = SNDRV_PCM_FMTBIT_S16_LE,58 },59 .symmetric_rate = 1,60};61 62static const struct snd_soc_component_driver soc_component_dev_ak4554 = {63 .dapm_widgets = ak4554_dapm_widgets,64 .num_dapm_widgets = ARRAY_SIZE(ak4554_dapm_widgets),65 .dapm_routes = ak4554_dapm_routes,66 .num_dapm_routes = ARRAY_SIZE(ak4554_dapm_routes),67 .idle_bias_on = 1,68 .use_pmdown_time = 1,69 .endianness = 1,70};71 72static int ak4554_soc_probe(struct platform_device *pdev)73{74 return devm_snd_soc_register_component(&pdev->dev,75 &soc_component_dev_ak4554,76 &ak4554_dai, 1);77}78 79static const struct of_device_id ak4554_of_match[] = {80 { .compatible = "asahi-kasei,ak4554" },81 {},82};83MODULE_DEVICE_TABLE(of, ak4554_of_match);84 85static struct platform_driver ak4554_driver = {86 .driver = {87 .name = "ak4554-adc-dac",88 .of_match_table = ak4554_of_match,89 },90 .probe = ak4554_soc_probe,91};92module_platform_driver(ak4554_driver);93 94MODULE_LICENSE("GPL v2");95MODULE_DESCRIPTION("SoC AK4554 driver");96MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");97