| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| 641 | 55.59% | 2 | 9.09% | |
| 346 | 30.01% | 4 | 18.18% | |
| 133 | 11.54% | 9 | 40.91% | |
| 17 | 1.47% | 1 | 4.55% | |
| 7 | 0.61% | 1 | 4.55% | |
| 5 | 0.43% | 1 | 4.55% | |
| 2 | 0.17% | 2 | 9.09% | |
| 1 | 0.09% | 1 | 4.55% | |
| 1 | 0.09% | 1 | 4.55% | |
| Total | 1153 | 22 |
| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Sylwester Nawrocki | 641 | 55.59% | 2 | 9.09% |
| Tushar Behera | 346 | 30.01% | 4 | 18.18% |
| Kuninori Morimoto | 133 | 11.54% | 9 | 40.91% |
| Mengdong Lin | 17 | 1.47% | 1 | 4.55% |
| Andreas Färber | 7 | 0.61% | 1 | 4.55% |
| Axel Lin | 5 | 0.43% | 1 | 4.55% |
| Uwe Kleine-König | 2 | 0.17% | 2 | 9.09% |
| Julia Lawall | 1 | 0.09% | 1 | 4.55% |
| Pierre-Louis Bossart | 1 | 0.09% | 1 | 4.55% |
| Total | 1153 | 22 |
// SPDX-License-Identifier: GPL-2.0 // // ASoC machine driver for Snow boards #include <linux/clk.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/of.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include "i2s.h" #define FIN_PLL_RATE 24000000 SND_SOC_DAILINK_DEFS(links, DAILINK_COMP_ARRAY(COMP_EMPTY()), DAILINK_COMP_ARRAY(COMP_EMPTY()), DAILINK_COMP_ARRAY(COMP_EMPTY())); struct snow_priv { struct snd_soc_dai_link dai_link; struct clk *clk_i2s_bus; }; static int snow_card_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { static const unsigned int pll_rate[] = { 73728000U, 67737602U, 49152000U, 45158401U, 32768001U }; struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct snow_priv *priv = snd_soc_card_get_drvdata(rtd->card); int bfs, psr, rfs, bitwidth; unsigned long int rclk; long int freq = -EINVAL; int ret, i; bitwidth = snd_pcm_format_width(params_format(params)); if (bitwidth < 0) { dev_err(rtd->card->dev, "Invalid bit-width: %d\n", bitwidth); return bitwidth; } if (bitwidth != 16 && bitwidth != 24) { dev_err(rtd->card->dev, "Unsupported bit-width: %d\n", bitwidth); return -EINVAL; } bfs = 2 * bitwidth; switch (params_rate(params)) { case 16000: case 22050: case 24000: case 32000: case 44100: case 48000: case 88200: case 96000: rfs = 8 * bfs; break; case 64000: rfs = 384; break; case 8000: case 11025: case 12000: rfs = 16 * bfs; break; default: return -EINVAL; } rclk = params_rate(params) * rfs; for (psr = 8; psr > 0; psr /= 2) { for (i = 0; i < ARRAY_SIZE(pll_rate); i++) { if ((pll_rate[i] - rclk * psr) <= 2) { freq = pll_rate[i]; break; } } } if (freq < 0) { dev_err(rtd->card->dev, "Unsupported RCLK rate: %lu\n", rclk); return -EINVAL; } ret = clk_set_rate(priv->clk_i2s_bus, freq); if (ret < 0) { dev_err(rtd->card->dev, "I2S bus clock rate set failed\n"); return ret; } return 0; } static const struct snd_soc_ops snow_card_ops = { .hw_params = snow_card_hw_params, }; static int snow_late_probe(struct snd_soc_card *card) { struct snd_soc_pcm_runtime *rtd; struct snd_soc_dai *codec_dai; rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]); /* In the multi-codec case codec_dais 0 is MAX98095 and 1 is HDMI. */ codec_dai = snd_soc_rtd_to_codec(rtd, 0); /* Set the MCLK rate for the codec */ return snd_soc_dai_set_sysclk(codec_dai, 0, FIN_PLL_RATE, SND_SOC_CLOCK_IN); } static struct snd_soc_card snow_snd = { .name = "Snow-I2S", .owner = THIS_MODULE, .late_probe = snow_late_probe, }; static int snow_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct snd_soc_card *card = &snow_snd; struct device_node *cpu, *codec; struct snd_soc_dai_link *link; struct snow_priv *priv; int ret; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; link = &priv->dai_link; link->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC; link->name = "Primary"; link->stream_name = link->name; link->cpus = links_cpus; link->num_cpus = ARRAY_SIZE(links_cpus); link->codecs = links_codecs; link->num_codecs = ARRAY_SIZE(links_codecs); link->platforms = links_platforms; link->num_platforms = ARRAY_SIZE(links_platforms); card->dai_link = link; card->num_links = 1; card->dev = dev; /* Try new DT bindings with HDMI support first. */ cpu = of_get_child_by_name(dev->of_node, "cpu"); if (cpu) { link->ops = &snow_card_ops; link->cpus->of_node = of_parse_phandle(cpu, "sound-dai", 0); of_node_put(cpu); if (!link->cpus->of_node) { dev_err(dev, "Failed parsing cpu/sound-dai property\n"); return -EINVAL; } codec = of_get_child_by_name(dev->of_node, "codec"); ret = snd_soc_of_get_dai_link_codecs(dev, codec, link); of_node_put(codec); if (ret < 0) { of_node_put(link->cpus->of_node); dev_err(dev, "Failed parsing codec node\n"); return ret; } priv->clk_i2s_bus = of_clk_get_by_name(link->cpus->of_node, "i2s_opclk0"); if (IS_ERR(priv->clk_i2s_bus)) { snd_soc_of_put_dai_link_codecs(link); of_node_put(link->cpus->of_node); return PTR_ERR(priv->clk_i2s_bus); } } else { link->codecs->dai_name = "HiFi"; link->cpus->of_node = of_parse_phandle(dev->of_node, "samsung,i2s-controller", 0); if (!link->cpus->of_node) { dev_err(dev, "i2s-controller property parse error\n"); return -EINVAL; } link->codecs->of_node = of_parse_phandle(dev->of_node, "samsung,audio-codec", 0); if (!link->codecs->of_node) { of_node_put(link->cpus->of_node); dev_err(dev, "audio-codec property parse error\n"); return -EINVAL; } } link->platforms->of_node = link->cpus->of_node; /* Update card-name if provided through DT, else use default name */ snd_soc_of_parse_card_name(card, "samsung,model"); snd_soc_card_set_drvdata(card, priv); ret = devm_snd_soc_register_card(dev, card); if (ret) return dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n"); return 0; } static void snow_remove(struct platform_device *pdev) { struct snow_priv *priv = platform_get_drvdata(pdev); struct snd_soc_dai_link *link = &priv->dai_link; of_node_put(link->cpus->of_node); of_node_put(link->codecs->of_node); snd_soc_of_put_dai_link_codecs(link); clk_put(priv->clk_i2s_bus); } static const struct of_device_id snow_of_match[] = { { .compatible = "google,snow-audio-max98090", }, { .compatible = "google,snow-audio-max98091", }, { .compatible = "google,snow-audio-max98095", }, {}, }; MODULE_DEVICE_TABLE(of, snow_of_match); static struct platform_driver snow_driver = { .driver = { .name = "snow-audio", .pm = &snd_soc_pm_ops, .of_match_table = snow_of_match, }, .probe = snow_probe, .remove = snow_remove, }; module_platform_driver(snow_driver); MODULE_DESCRIPTION("ALSA SoC Audio machine driver for Snow"); MODULE_LICENSE("GPL");