1 // SPDX-License-Identifier: GPL-2.0
28 /* P1022-specific PMUXCR and DMUXCR bit definitions */
38 #define CCSR_GUTS_DMUXCR_SSI	2	/* DMA controller/channel set to SSI */
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
85  * This function is used to initialize the board-specific hardware.
97 		dev_err(card->dev, "could not map global utilities\n");  in p1022_rdk_machine_probe()
98 		return -ENOMEM;  in p1022_rdk_machine_probe()
101 	/* Enable SSI Tx signal */  in p1022_rdk_machine_probe()
102 	clrsetbits_be32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_UART0_I2C1_MASK,  in p1022_rdk_machine_probe()
105 	/* Enable SSI Rx signal */  in p1022_rdk_machine_probe()
106 	clrsetbits_be32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_SSI_DMA_TDM_MASK,  in p1022_rdk_machine_probe()
109 	/* Enable DMA Channel for SSI */  in p1022_rdk_machine_probe()
110 	guts_set_dmuxcr(guts, mdata->dma_id[0], mdata->dma_channel_id[0],  in p1022_rdk_machine_probe()
113 	guts_set_dmuxcr(guts, mdata->dma_id[1], mdata->dma_channel_id[1],  in p1022_rdk_machine_probe()
124  * This function takes board-specific information, like clock frequencies
132 		container_of(rtd->card, struct machine_data, card);  in p1022_rdk_startup()
133 	struct device *dev = rtd->card->dev;  in p1022_rdk_startup()
137 	ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0), mdata->dai_format);  in p1022_rdk_startup()
144 	ret = snd_soc_dai_set_pll(asoc_rtd_to_codec(rtd, 0), 0, 0, mdata->clk_frequency,  in p1022_rdk_startup()
145 		mdata->clk_frequency);  in p1022_rdk_startup()
158  * This function is called to remove the sound device for one SSI.  We
159  * de-program the DMACR and PMUXCR register.
169 		dev_err(card->dev, "could not map global utilities\n");  in p1022_rdk_machine_remove()
170 		return -ENOMEM;  in p1022_rdk_machine_remove()
174 	clrbits32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_UART0_I2C1_MASK);  in p1022_rdk_machine_remove()
175 	clrbits32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_SSI_DMA_TDM_MASK);  in p1022_rdk_machine_remove()
176 	guts_set_dmuxcr(guts, mdata->dma_id[0], mdata->dma_channel_id[0], 0);  in p1022_rdk_machine_remove()
177 	guts_set_dmuxcr(guts, mdata->dma_id[1], mdata->dma_channel_id[1], 0);  in p1022_rdk_machine_remove()
194  * Although this is a machine driver, the SSI node is the "master" node with
196  * device for each new SSI node that has a codec attached.
200 	struct device *dev = pdev->dev.parent;  in p1022_rdk_probe()
201 	/* ssi_pdev is the platform device for the SSI node that probed us */  in p1022_rdk_probe()
203 	struct device_node *np = ssi_pdev->dev.of_node;  in p1022_rdk_probe()
210 	/* Find the codec node for this SSI. */  in p1022_rdk_probe()
211 	codec_np = of_parse_phandle(np, "codec-handle", 0);  in p1022_rdk_probe()
214 		return -EINVAL;  in p1022_rdk_probe()
219 		ret = -ENOMEM;  in p1022_rdk_probe()
223 	comp = devm_kzalloc(&pdev->dev, 6 * sizeof(*comp), GFP_KERNEL);  in p1022_rdk_probe()
225 		ret = -ENOMEM;  in p1022_rdk_probe()
229 	mdata->dai[0].cpus	= &comp[0];  in p1022_rdk_probe()
230 	mdata->dai[0].codecs	= &comp[1];  in p1022_rdk_probe()
231 	mdata->dai[0].platforms	= &comp[2];  in p1022_rdk_probe()
233 	mdata->dai[0].num_cpus		= 1;  in p1022_rdk_probe()
234 	mdata->dai[0].num_codecs	= 1;  in p1022_rdk_probe()
235 	mdata->dai[0].num_platforms	= 1;  in p1022_rdk_probe()
237 	mdata->dai[1].cpus	= &comp[3];  in p1022_rdk_probe()
238 	mdata->dai[1].codecs	= &comp[4];  in p1022_rdk_probe()
239 	mdata->dai[1].platforms	= &comp[5];  in p1022_rdk_probe()
241 	mdata->dai[1].num_cpus		= 1;  in p1022_rdk_probe()
242 	mdata->dai[1].num_codecs	= 1;  in p1022_rdk_probe()
243 	mdata->dai[1].num_platforms	= 1;  in p1022_rdk_probe()
245 	mdata->dai[0].cpus->dai_name = dev_name(&ssi_pdev->dev);  in p1022_rdk_probe()
246 	mdata->dai[0].ops = &p1022_rdk_ops;  in p1022_rdk_probe()
249 	mdata->dai[0].codecs->of_node = codec_np;  in p1022_rdk_probe()
252 	 * We register two DAIs per SSI, one for playback and the other for  in p1022_rdk_probe()
256 	memcpy(&mdata->dai[1], &mdata->dai[0], sizeof(struct snd_soc_dai_link));  in p1022_rdk_probe()
259 	mdata->dai[0].codecs->dai_name = "wm8960-hifi";  in p1022_rdk_probe()
260 	mdata->dai[1].codecs->dai_name = mdata->dai[0].codecs->dai_name;  in p1022_rdk_probe()
263 	 * Configure the SSI for I2S slave mode.  Older device trees have  in p1022_rdk_probe()
265 	 * only one way to configure the SSI.  in p1022_rdk_probe()
267 	mdata->dai_format = SND_SOC_DAIFMT_NB_NF |  in p1022_rdk_probe()
269 	mdata->codec_clk_direction = SND_SOC_CLOCK_OUT;  in p1022_rdk_probe()
270 	mdata->cpu_clk_direction = SND_SOC_CLOCK_IN;  in p1022_rdk_probe()
273 	 * In i2s-slave mode, the codec has its own clock source, so we  in p1022_rdk_probe()
277 	iprop = of_get_property(codec_np, "clock-frequency", NULL);  in p1022_rdk_probe()
279 		dev_err(&pdev->dev, "codec bus-frequency property is missing or invalid\n");  in p1022_rdk_probe()
280 		ret = -EINVAL;  in p1022_rdk_probe()
283 	mdata->clk_frequency = be32_to_cpup(iprop);  in p1022_rdk_probe()
285 	if (!mdata->clk_frequency) {  in p1022_rdk_probe()
286 		dev_err(&pdev->dev, "unknown clock frequency\n");  in p1022_rdk_probe()
287 		ret = -EINVAL;  in p1022_rdk_probe()
292 	mdata->dai[0].platforms->name = mdata->platform_name[0];  in p1022_rdk_probe()
293 	ret = fsl_asoc_get_dma_channel(np, "fsl,playback-dma", &mdata->dai[0],  in p1022_rdk_probe()
294 				       &mdata->dma_channel_id[0],  in p1022_rdk_probe()
295 				       &mdata->dma_id[0]);  in p1022_rdk_probe()
297 		dev_err(&pdev->dev, "missing/invalid playback DMA phandle (ret=%i)\n",  in p1022_rdk_probe()
303 	mdata->dai[1].platforms->name = mdata->platform_name[1];  in p1022_rdk_probe()
304 	ret = fsl_asoc_get_dma_channel(np, "fsl,capture-dma", &mdata->dai[1],  in p1022_rdk_probe()
305 				       &mdata->dma_channel_id[1],  in p1022_rdk_probe()
306 				       &mdata->dma_id[1]);  in p1022_rdk_probe()
308 		dev_err(&pdev->dev, "missing/invalid capture DMA phandle (ret=%i)\n",  in p1022_rdk_probe()
314 	mdata->dai[0].stream_name = "playback";  in p1022_rdk_probe()
315 	mdata->dai[1].stream_name = "capture";  in p1022_rdk_probe()
316 	mdata->dai[0].name = mdata->dai[0].stream_name;  in p1022_rdk_probe()
317 	mdata->dai[1].name = mdata->dai[1].stream_name;  in p1022_rdk_probe()
319 	mdata->card.probe = p1022_rdk_machine_probe;  in p1022_rdk_probe()
320 	mdata->card.remove = p1022_rdk_machine_remove;  in p1022_rdk_probe()
321 	mdata->card.name = pdev->name; /* The platform driver name */  in p1022_rdk_probe()
322 	mdata->card.owner = THIS_MODULE;  in p1022_rdk_probe()
323 	mdata->card.dev = &pdev->dev;  in p1022_rdk_probe()
324 	mdata->card.num_links = 2;  in p1022_rdk_probe()
325 	mdata->card.dai_link = mdata->dai;  in p1022_rdk_probe()
328 	ret = snd_soc_register_card(&mdata->card);  in p1022_rdk_probe()
330 		dev_err(&pdev->dev, "could not register card (ret=%i)\n", ret);  in p1022_rdk_probe()
368 		.name = "snd-soc-p1022rdk",
383 	guts_np = of_find_compatible_node(NULL, NULL, "fsl,p1022-guts");  in p1022_rdk_init()
385 		pr_err("snd-soc-p1022rdk: missing/invalid global utils node\n");  in p1022_rdk_init()
387 		return -EINVAL;  in p1022_rdk_init()