drivers/mfd/twl4030-audio.c

3  * MFD driver for twl4030 audio submodule, which contains an audio codec, and
21 #include <linux/mfd/twl4030-audio.h>
46 	struct twl4030_audio *audio = platform_get_drvdata(twl4030_audio_dev);
50 			audio->resource[id].reg);
53 		val |= audio->resource[id].mask;
55 		val &= ~audio->resource[id].mask;
58 					val, audio->resource[id].reg);
65 	struct twl4030_audio *audio = platform_get_drvdata(twl4030_audio_dev);
69 			audio->resource[id].reg);
80 	struct twl4030_audio *audio = platform_get_drvdata(twl4030_audio_dev);
89 	mutex_lock(&audio->mutex);
90 	if (!audio->resource[id].request_count)
96 	audio->resource[id].request_count++;
97 	mutex_unlock(&audio->mutex);
109 	struct twl4030_audio *audio = platform_get_drvdata(twl4030_audio_dev);
118 	mutex_lock(&audio->mutex);
119 	if (!audio->resource[id].request_count) {
122 		mutex_unlock(&audio->mutex);
125 	audio->resource[id].request_count--;
127 	if (!audio->resource[id].request_count)
133 	mutex_unlock(&audio->mutex);
141 	struct twl4030_audio *audio = platform_get_drvdata(twl4030_audio_dev);
143 	return audio->audio_mclk;
180 	struct twl4030_audio *audio;
192 	audio = devm_kzalloc(&pdev->dev, sizeof(struct twl4030_audio),
194 	if (!audio)
197 	mutex_init(&audio->mutex);
198 	audio->audio_mclk = twl_get_hfclk_rate();
201 	switch (audio->audio_mclk) {
218 	audio->resource[TWL4030_AUDIO_RES_POWER].reg = TWL4030_REG_CODEC_MODE;
219 	audio->resource[TWL4030_AUDIO_RES_POWER].mask = TWL4030_CODECPDZ;
222 	audio->resource[TWL4030_AUDIO_RES_APLL].reg = TWL4030_REG_APLL_CTL;
223 	audio->resource[TWL4030_AUDIO_RES_APLL].mask = TWL4030_APLL_EN;
226 		cell = &audio->cells[childs];
235 		cell = &audio->cells[childs];
244 	platform_set_drvdata(pdev, audio);
248 		ret = mfd_add_devices(&pdev->dev, pdev->id, audio->cells,
268 	{.compatible = "ti,twl4030-audio", },
275 		.name	= "twl4030-audio",
285 MODULE_DESCRIPTION("TWL4030 audio block MFD driver");
286 MODULE_ALIAS("platform:twl4030-audio");