sound/soc/soc-utils.c

1 // SPDX-License-Identifier: GPL-2.0+
3 // soc-util.c  --  ALSA SoC Audio Layer utility functions
57  * snd_soc_tdm_params_to_bclk - calculate bclk from params and tdm slot info.
59  * Calculate the bclk from the params sample rate, the tdm slot count and the
60  * tdm slot width. Optionally round-up the slot count to a given multiple.
63  * If tdm_width == 0:	use params_width() as the slot width.
64  * If tdm_slots == 0:	use params_channels() as the slot count.
66  * If slot_multiple > 1 the slot count (or params_channels() if tdm_slots == 0)
75  * @tdm_width:     Width in bits of the tdm slots. Must be >= 0.
76  * @tdm_slots:     Number of tdm slots per frame. Must be >= 0.
77  * @slot_multiple: If >1 roundup slot count to a multiple of this value.
122 	 * If there are other components associated with rtd, we shouldn't  in dummy_dma_open()
126 		if (component->driver == &dummy_platform)  in dummy_dma_open()
131 	if (!rtd->dai_link->no_pcm)  in dummy_dma_open()
195 	.name = "snd-soc-dummy-dai",
217 int snd_soc_dai_is_dummy(const struct snd_soc_dai *dai)  in snd_soc_dai_is_dummy()  argument
219 	if (dai->driver == &dummy_dai)  in snd_soc_dai_is_dummy()
227 	return ((component->driver == &dummy_platform) ||  in snd_soc_component_is_dummy()
228 		(component->driver == &dummy_codec));  in snd_soc_component_is_dummy()
233 	.dai_name	= "snd-soc-dummy-dai",
234 	.name		= "snd-soc-dummy",
242 	ret = devm_snd_soc_register_component(&pdev->dev,  in snd_soc_dummy_probe()
247 	ret = devm_snd_soc_register_component(&pdev->dev, &dummy_platform,  in snd_soc_dummy_probe()
255 		.name = "snd-soc-dummy",
267 		platform_device_register_simple("snd-soc-dummy", -1, NULL, 0);  in snd_soc_util_init()