^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * atmel_wm8904 - Atmel ASoC driver for boards with WM8904 codec.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2012 Atmel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author: Bo Shen <voice.shen@atmel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/clk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/of_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <sound/soc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "../codecs/wm8904.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "atmel_ssc_dai.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static const struct snd_soc_dapm_widget atmel_asoc_wm8904_dapm_widgets[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) SND_SOC_DAPM_HP("Headphone Jack", NULL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) SND_SOC_DAPM_MIC("Mic", NULL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) SND_SOC_DAPM_LINE("Line In Jack", NULL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static int atmel_asoc_wm8904_hw_params(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) struct snd_pcm_hw_params *params)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) ret = snd_soc_dai_set_pll(codec_dai, WM8904_FLL_MCLK, WM8904_FLL_MCLK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 32768, params_rate(params) * 256);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) pr_err("%s - failed to set wm8904 codec PLL.", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * As here wm8904 use FLL output as its system clock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * so calling set_sysclk won't care freq parameter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) * then we pass 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) ret = snd_soc_dai_set_sysclk(codec_dai, WM8904_CLK_FLL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 0, SND_SOC_CLOCK_IN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) pr_err("%s -failed to set wm8904 SYSCLK\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static const struct snd_soc_ops atmel_asoc_wm8904_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) .hw_params = atmel_asoc_wm8904_hw_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) SND_SOC_DAILINK_DEFS(pcm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) DAILINK_COMP_ARRAY(COMP_EMPTY()),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8904-hifi")),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) DAILINK_COMP_ARRAY(COMP_EMPTY()));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static struct snd_soc_dai_link atmel_asoc_wm8904_dailink = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) .name = "WM8904",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) .stream_name = "WM8904 PCM",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) .dai_fmt = SND_SOC_DAIFMT_I2S
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) | SND_SOC_DAIFMT_NB_NF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) | SND_SOC_DAIFMT_CBM_CFM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) .ops = &atmel_asoc_wm8904_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) SND_SOC_DAILINK_REG(pcm),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) static struct snd_soc_card atmel_asoc_wm8904_card = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .name = "atmel_asoc_wm8904",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .dai_link = &atmel_asoc_wm8904_dailink,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) .num_links = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .dapm_widgets = atmel_asoc_wm8904_dapm_widgets,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .num_dapm_widgets = ARRAY_SIZE(atmel_asoc_wm8904_dapm_widgets),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .fully_routed = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) static int atmel_asoc_wm8904_dt_init(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) struct device_node *np = pdev->dev.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct device_node *codec_np, *cpu_np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) struct snd_soc_card *card = &atmel_asoc_wm8904_card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct snd_soc_dai_link *dailink = &atmel_asoc_wm8904_dailink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) if (!np) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) dev_err(&pdev->dev, "only device tree supported\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) ret = snd_soc_of_parse_card_name(card, "atmel,model");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) dev_err(&pdev->dev, "failed to parse card name\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) ret = snd_soc_of_parse_audio_routing(card, "atmel,audio-routing");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) dev_err(&pdev->dev, "failed to parse audio routing\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if (!cpu_np) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) dev_err(&pdev->dev, "failed to get dai and pcm info\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) dailink->cpus->of_node = cpu_np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) dailink->platforms->of_node = cpu_np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) of_node_put(cpu_np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) codec_np = of_parse_phandle(np, "atmel,audio-codec", 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) if (!codec_np) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) dev_err(&pdev->dev, "failed to get codec info\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) dailink->codecs->of_node = codec_np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) of_node_put(codec_np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static int atmel_asoc_wm8904_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct snd_soc_card *card = &atmel_asoc_wm8904_card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) struct snd_soc_dai_link *dailink = &atmel_asoc_wm8904_dailink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) int id, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) card->dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) ret = atmel_asoc_wm8904_dt_init(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) dev_err(&pdev->dev, "failed to init dt info\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) id = of_alias_get_id((struct device_node *)dailink->cpus->of_node, "ssc");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) ret = atmel_ssc_set_audio(id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) if (ret != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) dev_err(&pdev->dev, "failed to set SSC %d for audio\n", id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) ret = snd_soc_register_card(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) dev_err(&pdev->dev, "snd_soc_register_card failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) goto err_set_audio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) err_set_audio:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) atmel_ssc_put_audio(id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) static int atmel_asoc_wm8904_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) struct snd_soc_card *card = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) struct snd_soc_dai_link *dailink = &atmel_asoc_wm8904_dailink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) int id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) id = of_alias_get_id((struct device_node *)dailink->cpus->of_node, "ssc");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) snd_soc_unregister_card(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) atmel_ssc_put_audio(id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) #ifdef CONFIG_OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) static const struct of_device_id atmel_asoc_wm8904_dt_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) { .compatible = "atmel,asoc-wm8904", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) MODULE_DEVICE_TABLE(of, atmel_asoc_wm8904_dt_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) static struct platform_driver atmel_asoc_wm8904_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) .name = "atmel-wm8904-audio",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) .of_match_table = of_match_ptr(atmel_asoc_wm8904_dt_ids),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) .pm = &snd_soc_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) .probe = atmel_asoc_wm8904_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) .remove = atmel_asoc_wm8904_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) module_platform_driver(atmel_asoc_wm8904_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) /* Module information */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) MODULE_AUTHOR("Bo Shen <voice.shen@atmel.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) MODULE_DESCRIPTION("ALSA SoC machine driver for Atmel EK with WM8904 codec");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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