1 // SPDX-License-Identifier: GPL-2.0+
2 // Copyright 2018-2021 NXP
5 #include <linux/clk-provider.h>
18 #include "imx-pcm.h"
46 	struct clk *p = rpmsg->mclk, *pll = NULL, *npll = NULL;  in fsl_rpmsg_hw_params()
51 	while (p && rpmsg->pll8k && rpmsg->pll11k) {  in fsl_rpmsg_hw_params()
54 		if (clk_is_match(pp, rpmsg->pll8k) ||  in fsl_rpmsg_hw_params()
55 		    clk_is_match(pp, rpmsg->pll11k)) {  in fsl_rpmsg_hw_params()
64 		npll = (do_div(rate, 8000) ? rpmsg->pll11k : rpmsg->pll8k);  in fsl_rpmsg_hw_params()
68 				dev_warn(dai->dev, "failed to set parent %s: %d\n",  in fsl_rpmsg_hw_params()
73 	if (!(rpmsg->mclk_streams & BIT(substream->stream))) {  in fsl_rpmsg_hw_params()
74 		ret = clk_prepare_enable(rpmsg->mclk);  in fsl_rpmsg_hw_params()
76 			dev_err(dai->dev, "failed to enable mclk: %d\n", ret);  in fsl_rpmsg_hw_params()
80 		rpmsg->mclk_streams |= BIT(substream->stream);  in fsl_rpmsg_hw_params()
91 	if (rpmsg->mclk_streams & BIT(substream->stream)) {  in fsl_rpmsg_hw_free()
92 		clk_disable_unprepare(rpmsg->mclk);  in fsl_rpmsg_hw_free()
93 		rpmsg->mclk_streams &= ~BIT(substream->stream);  in fsl_rpmsg_hw_free()
102 	return snd_pcm_hw_constraint_list(substream->runtime, 0,  in fsl_rpmsg_startup()
114 	.playback = {
115 		.stream_name = "CPU-Playback",
122 		.stream_name = "CPU-Capture",
135 	.name			= "fsl-rpmsg",
185 	{ .compatible = "fsl,imx7ulp-rpmsg-audio", .data = &imx7ulp_data},
186 	{ .compatible = "fsl,imx8mm-rpmsg-audio", .data = &imx8mm_data},
187 	{ .compatible = "fsl,imx8mn-rpmsg-audio", .data = &imx8mn_data},
188 	{ .compatible = "fsl,imx8mp-rpmsg-audio", .data = &imx8mp_data},
189 	{ .compatible = "fsl,imx8ulp-rpmsg-audio", .data = &imx7ulp_data},
190 	{ .compatible = "fsl,imx93-rpmsg-audio", .data = &imx93_data},
191 	{ .compatible = "fsl,imx95-rpmsg-audio", .data = &imx95_data},
198 	struct device_node *np = pdev->dev.of_node;  in fsl_rpmsg_probe()
204 	dai_drv = devm_kzalloc(&pdev->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL);  in fsl_rpmsg_probe()
206 		return -ENOMEM;  in fsl_rpmsg_probe()
209 	rpmsg = devm_kzalloc(&pdev->dev, sizeof(struct fsl_rpmsg), GFP_KERNEL);  in fsl_rpmsg_probe()
211 		return -ENOMEM;  in fsl_rpmsg_probe()
213 	rpmsg->soc_data = of_device_get_match_data(&pdev->dev);  in fsl_rpmsg_probe()
215 	if (rpmsg->soc_data) {  in fsl_rpmsg_probe()
216 		dai_drv->playback.rates = rpmsg->soc_data->rates;  in fsl_rpmsg_probe()
217 		dai_drv->capture.rates = rpmsg->soc_data->rates;  in fsl_rpmsg_probe()
218 		dai_drv->playback.formats = rpmsg->soc_data->formats;  in fsl_rpmsg_probe()
219 		dai_drv->capture.formats = rpmsg->soc_data->formats;  in fsl_rpmsg_probe()
223 	ret = of_property_read_string(np, "fsl,rpmsg-channel-name", &dai_name);  in fsl_rpmsg_probe()
225 		if (ret == -EINVAL) {  in fsl_rpmsg_probe()
226 			dai_name = "rpmsg-audio-channel";  in fsl_rpmsg_probe()
228 			dev_err(&pdev->dev, "Failed to get rpmsg channel name: %d!\n", ret);  in fsl_rpmsg_probe()
232 	dai_drv->name = dai_name;  in fsl_rpmsg_probe()
234 	/* Setup cpu dai for sound card that sits on rpmsg-micfil-channel */  in fsl_rpmsg_probe()
235 	if (!strcmp(dai_name, "rpmsg-micfil-channel")) {  in fsl_rpmsg_probe()
236 		dai_drv->capture.channels_min = 1;  in fsl_rpmsg_probe()
237 		dai_drv->capture.channels_max = 8;  in fsl_rpmsg_probe()
238 		dai_drv->capture.rates = SNDRV_PCM_RATE_8000_48000;  in fsl_rpmsg_probe()
239 		dai_drv->capture.formats = SNDRV_PCM_FMTBIT_S32_LE;  in fsl_rpmsg_probe()
240 		if (of_device_is_compatible(np, "fsl,imx8mm-rpmsg-audio"))  in fsl_rpmsg_probe()
241 			dai_drv->capture.formats = SNDRV_PCM_FMTBIT_S16_LE;  in fsl_rpmsg_probe()
244 	if (of_property_read_bool(np, "fsl,enable-lpa")) {  in fsl_rpmsg_probe()
245 		rpmsg->enable_lpa = 1;  in fsl_rpmsg_probe()
246 		rpmsg->buffer_size[SNDRV_PCM_STREAM_PLAYBACK] = LPA_LARGE_BUFFER_SIZE;  in fsl_rpmsg_probe()
247 		rpmsg->buffer_size[SNDRV_PCM_STREAM_CAPTURE] = LPA_CAPTURE_BUFFER_SIZE;  in fsl_rpmsg_probe()
249 		rpmsg->buffer_size[SNDRV_PCM_STREAM_PLAYBACK] = IMX_DEFAULT_DMABUF_SIZE;  in fsl_rpmsg_probe()
250 		rpmsg->buffer_size[SNDRV_PCM_STREAM_CAPTURE] = IMX_DEFAULT_DMABUF_SIZE;  in fsl_rpmsg_probe()
254 	rpmsg->ipg = devm_clk_get_optional(&pdev->dev, "ipg");  in fsl_rpmsg_probe()
255 	if (IS_ERR(rpmsg->ipg))  in fsl_rpmsg_probe()
256 		return PTR_ERR(rpmsg->ipg);  in fsl_rpmsg_probe()
258 	rpmsg->mclk = devm_clk_get_optional(&pdev->dev, "mclk");  in fsl_rpmsg_probe()
259 	if (IS_ERR(rpmsg->mclk))  in fsl_rpmsg_probe()
260 		return PTR_ERR(rpmsg->mclk);  in fsl_rpmsg_probe()
262 	rpmsg->dma = devm_clk_get_optional(&pdev->dev, "dma");  in fsl_rpmsg_probe()
263 	if (IS_ERR(rpmsg->dma))  in fsl_rpmsg_probe()
264 		return PTR_ERR(rpmsg->dma);  in fsl_rpmsg_probe()
266 	rpmsg->pll8k = devm_clk_get_optional(&pdev->dev, "pll8k");  in fsl_rpmsg_probe()
267 	if (IS_ERR(rpmsg->pll8k))  in fsl_rpmsg_probe()
268 		return PTR_ERR(rpmsg->pll8k);  in fsl_rpmsg_probe()
270 	rpmsg->pll11k = devm_clk_get_optional(&pdev->dev, "pll11k");  in fsl_rpmsg_probe()
271 	if (IS_ERR(rpmsg->pll11k))  in fsl_rpmsg_probe()
272 		return PTR_ERR(rpmsg->pll11k);  in fsl_rpmsg_probe()
275 	pm_runtime_enable(&pdev->dev);  in fsl_rpmsg_probe()
277 	ret = devm_snd_soc_register_component(&pdev->dev, &fsl_component,  in fsl_rpmsg_probe()
285 	pm_runtime_disable(&pdev->dev);  in fsl_rpmsg_probe()
293 	pm_runtime_disable(&pdev->dev);  in fsl_rpmsg_remove()
295 	if (rpmsg->card_pdev)  in fsl_rpmsg_remove()
296 		platform_device_unregister(rpmsg->card_pdev);  in fsl_rpmsg_remove()
304 	ret = clk_prepare_enable(rpmsg->ipg);  in fsl_rpmsg_runtime_resume()
310 	ret = clk_prepare_enable(rpmsg->dma);  in fsl_rpmsg_runtime_resume()
312 		dev_err(dev, "Failed to enable dma clock %d\n", ret);  in fsl_rpmsg_runtime_resume()
319 	clk_disable_unprepare(rpmsg->ipg);  in fsl_rpmsg_runtime_resume()
328 	clk_disable_unprepare(rpmsg->dma);  in fsl_rpmsg_runtime_suspend()
329 	clk_disable_unprepare(rpmsg->ipg);  in fsl_rpmsg_runtime_suspend()