1 // SPDX-License-Identifier: GPL-2.0
28 /* P1022-specific PMUXCR and DMUXCR bit definitions */
37 #define CCSR_GUTS_DMUXCR_PAD	1	/* DMA controller/channel set to pad */
38 #define CCSR_GUTS_DMUXCR_SSI	2	/* DMA controller/channel set to SSI */
44  * channel on each DMA controller.  Rather than have a bunch of repetitive
49  * co: The DMA controller (0 or 1)
50  * ch: The channel on the DMA controller (0, 1, 2, or 3)
56 	unsigned int shift = 16 + (8 * (1 - co) + 2 * (3 - ch));  in guts_set_dmuxcr()
58 	clrsetbits_be32(&guts->dmuxcr, 3 << shift, device << shift);  in guts_set_dmuxcr()
65  * machine_data: machine-specific ASoC device data
71 	struct snd_soc_dai_link dai[2];  member
83  * p1022_rdk_machine_probe - initialize the board
86  * This function is used to initialize the board-specific hardware.
100 		dev_err(card->dev, "could not map global utilities\n");  in p1022_rdk_machine_probe()
101 		return -ENOMEM;  in p1022_rdk_machine_probe()
105 	clrsetbits_be32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_UART0_I2C1_MASK,  in p1022_rdk_machine_probe()
109 	clrsetbits_be32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_SSI_DMA_TDM_MASK,  in p1022_rdk_machine_probe()
113 	guts_set_dmuxcr(guts, mdata->dma_id[0], mdata->dma_channel_id[0],  in p1022_rdk_machine_probe()
116 	guts_set_dmuxcr(guts, mdata->dma_id[1], mdata->dma_channel_id[1],  in p1022_rdk_machine_probe()
125  * p1022_rdk_startup - program the board with various hardware parameters
128  * This function takes board-specific information, like clock frequencies
138 		container_of(rtd->card, struct machine_data, card);  in p1022_rdk_startup()
139 	struct device *dev = rtd->card->dev;  in p1022_rdk_startup()
143 	ret = snd_soc_dai_set_fmt(snd_soc_rtd_to_codec(rtd, 0), mdata->dai_format);  in p1022_rdk_startup()
150 	ret = snd_soc_dai_set_pll(snd_soc_rtd_to_codec(rtd, 0), 0, 0, mdata->clk_frequency,  in p1022_rdk_startup()
151 		mdata->clk_frequency);  in p1022_rdk_startup()
162  * p1022_rdk_machine_remove - Remove the sound device
166  * de-program the DMACR and PMUXCR register.
178 		dev_err(card->dev, "could not map global utilities\n");  in p1022_rdk_machine_remove()
179 		return -ENOMEM;  in p1022_rdk_machine_remove()
183 	clrbits32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_UART0_I2C1_MASK);  in p1022_rdk_machine_remove()
184 	clrbits32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_SSI_DMA_TDM_MASK);  in p1022_rdk_machine_remove()
185 	guts_set_dmuxcr(guts, mdata->dma_id[0], mdata->dma_channel_id[0], 0);  in p1022_rdk_machine_remove()
186 	guts_set_dmuxcr(guts, mdata->dma_id[1], mdata->dma_channel_id[1], 0);  in p1022_rdk_machine_remove()
201  * p1022_rdk_probe - platform probe function for the machine driver
212 	struct device *dev = pdev->dev.parent;  in p1022_rdk_probe()
215 	struct device_node *np = ssi_pdev->dev.of_node;  in p1022_rdk_probe()
223 	codec_np = of_parse_phandle(np, "codec-handle", 0);  in p1022_rdk_probe()
226 		return -EINVAL;  in p1022_rdk_probe()
231 		ret = -ENOMEM;  in p1022_rdk_probe()
235 	comp = devm_kzalloc(&pdev->dev, 6 * sizeof(*comp), GFP_KERNEL);  in p1022_rdk_probe()
237 		ret = -ENOMEM;  in p1022_rdk_probe()
241 	mdata->dai[0].cpus	= &comp[0];  in p1022_rdk_probe()
242 	mdata->dai[0].codecs	= &comp[1];  in p1022_rdk_probe()
243 	mdata->dai[0].platforms	= &comp[2];  in p1022_rdk_probe()
245 	mdata->dai[0].num_cpus		= 1;  in p1022_rdk_probe()
246 	mdata->dai[0].num_codecs	= 1;  in p1022_rdk_probe()
247 	mdata->dai[0].num_platforms	= 1;  in p1022_rdk_probe()
249 	mdata->dai[1].cpus	= &comp[3];  in p1022_rdk_probe()
250 	mdata->dai[1].codecs	= &comp[4];  in p1022_rdk_probe()
251 	mdata->dai[1].platforms	= &comp[5];  in p1022_rdk_probe()
253 	mdata->dai[1].num_cpus		= 1;  in p1022_rdk_probe()
254 	mdata->dai[1].num_codecs	= 1;  in p1022_rdk_probe()
255 	mdata->dai[1].num_platforms	= 1;  in p1022_rdk_probe()
257 	mdata->dai[0].cpus->dai_name = dev_name(&ssi_pdev->dev);  in p1022_rdk_probe()
258 	mdata->dai[0].ops = &p1022_rdk_ops;  in p1022_rdk_probe()
261 	mdata->dai[0].codecs->of_node = codec_np;  in p1022_rdk_probe()
268 	memcpy(&mdata->dai[1], &mdata->dai[0], sizeof(struct snd_soc_dai_link));  in p1022_rdk_probe()
270 	/* The DAI names from the codec (snd_soc_dai_driver.name) */  in p1022_rdk_probe()
271 	mdata->dai[0].codecs->dai_name = "wm8960-hifi";  in p1022_rdk_probe()
272 	mdata->dai[1].codecs->dai_name = mdata->dai[0].codecs->dai_name;  in p1022_rdk_probe()
279 	mdata->dai_format = SND_SOC_DAIFMT_NB_NF |  in p1022_rdk_probe()
281 	mdata->codec_clk_direction = SND_SOC_CLOCK_OUT;  in p1022_rdk_probe()
282 	mdata->cpu_clk_direction = SND_SOC_CLOCK_IN;  in p1022_rdk_probe()
285 	 * In i2s-slave mode, the codec has its own clock source, so we  in p1022_rdk_probe()
289 	iprop = of_get_property(codec_np, "clock-frequency", NULL);  in p1022_rdk_probe()
291 		dev_err(&pdev->dev, "codec bus-frequency property is missing or invalid\n");  in p1022_rdk_probe()
292 		ret = -EINVAL;  in p1022_rdk_probe()
295 	mdata->clk_frequency = be32_to_cpup(iprop);  in p1022_rdk_probe()
297 	if (!mdata->clk_frequency) {  in p1022_rdk_probe()
298 		dev_err(&pdev->dev, "unknown clock frequency\n");  in p1022_rdk_probe()
299 		ret = -EINVAL;  in p1022_rdk_probe()
304 	mdata->dai[0].platforms->name = mdata->platform_name[0];  in p1022_rdk_probe()
305 	ret = fsl_asoc_get_dma_channel(np, "fsl,playback-dma", &mdata->dai[0],  in p1022_rdk_probe()
306 				       &mdata->dma_channel_id[0],  in p1022_rdk_probe()
307 				       &mdata->dma_id[0]);  in p1022_rdk_probe()
309 		dev_err(&pdev->dev, "missing/invalid playback DMA phandle (ret=%i)\n",  in p1022_rdk_probe()
315 	mdata->dai[1].platforms->name = mdata->platform_name[1];  in p1022_rdk_probe()
316 	ret = fsl_asoc_get_dma_channel(np, "fsl,capture-dma", &mdata->dai[1],  in p1022_rdk_probe()
317 				       &mdata->dma_channel_id[1],  in p1022_rdk_probe()
318 				       &mdata->dma_id[1]);  in p1022_rdk_probe()
320 		dev_err(&pdev->dev, "missing/invalid capture DMA phandle (ret=%i)\n",  in p1022_rdk_probe()
325 	/* Initialize our DAI data structure.  */  in p1022_rdk_probe()
326 	mdata->dai[0].stream_name = "playback";  in p1022_rdk_probe()
327 	mdata->dai[1].stream_name = "capture";  in p1022_rdk_probe()
328 	mdata->dai[0].name = mdata->dai[0].stream_name;  in p1022_rdk_probe()
329 	mdata->dai[1].name = mdata->dai[1].stream_name;  in p1022_rdk_probe()
331 	mdata->card.probe = p1022_rdk_machine_probe;  in p1022_rdk_probe()
332 	mdata->card.remove = p1022_rdk_machine_remove;  in p1022_rdk_probe()
333 	mdata->card.name = pdev->name; /* The platform driver name */  in p1022_rdk_probe()
334 	mdata->card.owner = THIS_MODULE;  in p1022_rdk_probe()
335 	mdata->card.dev = &pdev->dev;  in p1022_rdk_probe()
336 	mdata->card.num_links = 2;  in p1022_rdk_probe()
337 	mdata->card.dai_link = mdata->dai;  in p1022_rdk_probe()
340 	ret = snd_soc_register_card(&mdata->card);  in p1022_rdk_probe()
342 		dev_err(&pdev->dev, "could not register card (ret=%i)\n", ret);  in p1022_rdk_probe()
356  * p1022_rdk_remove - remove the platform device
379 		.name = "snd-soc-p1022rdk",
384  * p1022_rdk_init - machine driver initialization.
396 	guts_np = of_find_compatible_node(NULL, NULL, "fsl,p1022-guts");  in p1022_rdk_init()
398 		pr_err("snd-soc-p1022rdk: missing/invalid global utils node\n");  in p1022_rdk_init()
400 		return -EINVAL;  in p1022_rdk_init()
409  * p1022_rdk_exit - machine driver exit