18c2ecf20Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-only 28c2ecf20Sopenharmony_ci 38c2ecf20Sopenharmony_ci#include <linux/module.h> 48c2ecf20Sopenharmony_ci#include <sound/soc.h> 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ci#include <asm/mach-types.h> 78c2ecf20Sopenharmony_ci 88c2ecf20Sopenharmony_ci#include "../codecs/wm8940.h" 98c2ecf20Sopenharmony_ci#include "pxa2xx-i2s.h" 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_cistatic int imote2_asoc_hw_params(struct snd_pcm_substream *substream, 128c2ecf20Sopenharmony_ci struct snd_pcm_hw_params *params) 138c2ecf20Sopenharmony_ci{ 148c2ecf20Sopenharmony_ci struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 158c2ecf20Sopenharmony_ci struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); 168c2ecf20Sopenharmony_ci struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); 178c2ecf20Sopenharmony_ci unsigned int clk = 0; 188c2ecf20Sopenharmony_ci int ret; 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci switch (params_rate(params)) { 218c2ecf20Sopenharmony_ci case 8000: 228c2ecf20Sopenharmony_ci case 16000: 238c2ecf20Sopenharmony_ci case 48000: 248c2ecf20Sopenharmony_ci case 96000: 258c2ecf20Sopenharmony_ci clk = 12288000; 268c2ecf20Sopenharmony_ci break; 278c2ecf20Sopenharmony_ci case 11025: 288c2ecf20Sopenharmony_ci case 22050: 298c2ecf20Sopenharmony_ci case 44100: 308c2ecf20Sopenharmony_ci clk = 11289600; 318c2ecf20Sopenharmony_ci break; 328c2ecf20Sopenharmony_ci } 338c2ecf20Sopenharmony_ci 348c2ecf20Sopenharmony_ci ret = snd_soc_dai_set_sysclk(codec_dai, 0, clk, 358c2ecf20Sopenharmony_ci SND_SOC_CLOCK_IN); 368c2ecf20Sopenharmony_ci if (ret < 0) 378c2ecf20Sopenharmony_ci return ret; 388c2ecf20Sopenharmony_ci 398c2ecf20Sopenharmony_ci /* set the I2S system clock as input (unused) */ 408c2ecf20Sopenharmony_ci ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, clk, 418c2ecf20Sopenharmony_ci SND_SOC_CLOCK_OUT); 428c2ecf20Sopenharmony_ci 438c2ecf20Sopenharmony_ci return ret; 448c2ecf20Sopenharmony_ci} 458c2ecf20Sopenharmony_ci 468c2ecf20Sopenharmony_cistatic const struct snd_soc_ops imote2_asoc_ops = { 478c2ecf20Sopenharmony_ci .hw_params = imote2_asoc_hw_params, 488c2ecf20Sopenharmony_ci}; 498c2ecf20Sopenharmony_ci 508c2ecf20Sopenharmony_ciSND_SOC_DAILINK_DEFS(wm8940, 518c2ecf20Sopenharmony_ci DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-i2s")), 528c2ecf20Sopenharmony_ci DAILINK_COMP_ARRAY(COMP_CODEC("wm8940-codec.0-0034", 538c2ecf20Sopenharmony_ci "wm8940-hifi")), 548c2ecf20Sopenharmony_ci DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio"))); 558c2ecf20Sopenharmony_ci 568c2ecf20Sopenharmony_cistatic struct snd_soc_dai_link imote2_dai = { 578c2ecf20Sopenharmony_ci .name = "WM8940", 588c2ecf20Sopenharmony_ci .stream_name = "WM8940", 598c2ecf20Sopenharmony_ci .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 608c2ecf20Sopenharmony_ci SND_SOC_DAIFMT_CBS_CFS, 618c2ecf20Sopenharmony_ci .ops = &imote2_asoc_ops, 628c2ecf20Sopenharmony_ci SND_SOC_DAILINK_REG(wm8940), 638c2ecf20Sopenharmony_ci}; 648c2ecf20Sopenharmony_ci 658c2ecf20Sopenharmony_cistatic struct snd_soc_card imote2 = { 668c2ecf20Sopenharmony_ci .name = "Imote2", 678c2ecf20Sopenharmony_ci .owner = THIS_MODULE, 688c2ecf20Sopenharmony_ci .dai_link = &imote2_dai, 698c2ecf20Sopenharmony_ci .num_links = 1, 708c2ecf20Sopenharmony_ci}; 718c2ecf20Sopenharmony_ci 728c2ecf20Sopenharmony_cistatic int imote2_probe(struct platform_device *pdev) 738c2ecf20Sopenharmony_ci{ 748c2ecf20Sopenharmony_ci struct snd_soc_card *card = &imote2; 758c2ecf20Sopenharmony_ci int ret; 768c2ecf20Sopenharmony_ci 778c2ecf20Sopenharmony_ci card->dev = &pdev->dev; 788c2ecf20Sopenharmony_ci 798c2ecf20Sopenharmony_ci ret = devm_snd_soc_register_card(&pdev->dev, card); 808c2ecf20Sopenharmony_ci if (ret) 818c2ecf20Sopenharmony_ci dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", 828c2ecf20Sopenharmony_ci ret); 838c2ecf20Sopenharmony_ci return ret; 848c2ecf20Sopenharmony_ci} 858c2ecf20Sopenharmony_ci 868c2ecf20Sopenharmony_cistatic struct platform_driver imote2_driver = { 878c2ecf20Sopenharmony_ci .driver = { 888c2ecf20Sopenharmony_ci .name = "imote2-audio", 898c2ecf20Sopenharmony_ci .pm = &snd_soc_pm_ops, 908c2ecf20Sopenharmony_ci }, 918c2ecf20Sopenharmony_ci .probe = imote2_probe, 928c2ecf20Sopenharmony_ci}; 938c2ecf20Sopenharmony_ci 948c2ecf20Sopenharmony_cimodule_platform_driver(imote2_driver); 958c2ecf20Sopenharmony_ci 968c2ecf20Sopenharmony_ciMODULE_AUTHOR("Jonathan Cameron"); 978c2ecf20Sopenharmony_ciMODULE_DESCRIPTION("ALSA SoC Imote 2"); 988c2ecf20Sopenharmony_ciMODULE_LICENSE("GPL"); 998c2ecf20Sopenharmony_ciMODULE_ALIAS("platform:imote2-audio"); 100