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hc
2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390 
 kernel/sound/soc/fsl/mpc5200_dma.c
....@@ -1,10 +1,10 @@
1
-/*
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- * Freescale MPC5200 PSC DMA
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- * ALSA SoC Platform driver
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- *
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- * Copyright (C) 2008 Secret Lab Technologies Ltd.
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- * Copyright (C) 2009 Jon Smirl, Digispeaker
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- */
1
+// SPDX-License-Identifier: GPL-2.0-only
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+//
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+// Freescale MPC5200 PSC DMA
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+// ALSA SoC Platform driver
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+//
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+// Copyright (C) 2008 Secret Lab Technologies Ltd.
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+// Copyright (C) 2009 Jon Smirl, Digispeaker
88 
99 #include <linux/module.h>
1010 #include <linux/of_device.h>
....@@ -98,7 +98,8 @@
9898 	return IRQ_HANDLED;
9999 }
100100 
101
-static int psc_dma_hw_free(struct snd_pcm_substream *substream)
101
+static int psc_dma_hw_free(struct snd_soc_component *component,
102
+			   struct snd_pcm_substream *substream)
102103 {
103104 	snd_pcm_set_runtime_buffer(substream, NULL);
104105 	return 0;
....@@ -110,10 +111,11 @@
110111  * This function is called by ALSA to start, stop, pause, and resume the DMA
111112  * transfer of data.
112113  */
113
-static int psc_dma_trigger(struct snd_pcm_substream *substream, int cmd)
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+static int psc_dma_trigger(struct snd_soc_component *component,
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+			   struct snd_pcm_substream *substream, int cmd)
114116 {
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-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
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-	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(rtd->cpu_dai);
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+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
117119 	struct snd_pcm_runtime *runtime = substream->runtime;
118120 	struct psc_dma_stream *s = to_psc_dma_stream(substream, psc_dma);
119121 	struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs;
....@@ -210,11 +212,12 @@
210212 	.fifo_size		= 512,
211213 };
212214 
213
-static int psc_dma_open(struct snd_pcm_substream *substream)
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+static int psc_dma_open(struct snd_soc_component *component,
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+			struct snd_pcm_substream *substream)
214217 {
215218 	struct snd_pcm_runtime *runtime = substream->runtime;
216
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
217
-	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(rtd->cpu_dai);
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+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
218221 	struct psc_dma_stream *s;
219222 	int rc;
220223 
....@@ -238,10 +241,11 @@
238241 	return 0;
239242 }
240243 
241
-static int psc_dma_close(struct snd_pcm_substream *substream)
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+static int psc_dma_close(struct snd_soc_component *component,
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+			 struct snd_pcm_substream *substream)
242246 {
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-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
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-	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(rtd->cpu_dai);
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+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
245249 	struct psc_dma_stream *s;
246250 
247251 	dev_dbg(psc_dma->dev, "psc_dma_close(substream=%p)\n", substream);
....@@ -263,10 +267,11 @@
263267 }
264268 
265269 static snd_pcm_uframes_t
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-psc_dma_pointer(struct snd_pcm_substream *substream)
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+psc_dma_pointer(struct snd_soc_component *component,
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+		struct snd_pcm_substream *substream)
267272 {
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-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
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-	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(rtd->cpu_dai);
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+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
270275 	struct psc_dma_stream *s;
271276 	dma_addr_t count;
272277 
....@@ -280,30 +285,20 @@
280285 	return bytes_to_frames(substream->runtime, count);
281286 }
282287 
283
-static int
284
-psc_dma_hw_params(struct snd_pcm_substream *substream,
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-			 struct snd_pcm_hw_params *params)
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+static int psc_dma_hw_params(struct snd_soc_component *component,
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+			     struct snd_pcm_substream *substream,
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+			     struct snd_pcm_hw_params *params)
286291 {
287292 	snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
288293 
289294 	return 0;
290295 }
291296 
292
-static const struct snd_pcm_ops psc_dma_ops = {
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-	.open		= psc_dma_open,
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-	.close		= psc_dma_close,
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-	.hw_free	= psc_dma_hw_free,
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-	.ioctl		= snd_pcm_lib_ioctl,
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-	.pointer	= psc_dma_pointer,
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-	.trigger	= psc_dma_trigger,
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-	.hw_params	= psc_dma_hw_params,
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-};
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-
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-static int psc_dma_new(struct snd_soc_pcm_runtime *rtd)
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+static int psc_dma_new(struct snd_soc_component *component,
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+		       struct snd_soc_pcm_runtime *rtd)
303299 {
304300 	struct snd_card *card = rtd->card->snd_card;
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-	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
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-	struct snd_soc_dai *dai = rtd->cpu_dai;
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+	struct snd_soc_dai *dai = asoc_rtd_to_cpu(rtd, 0);
307302 	struct snd_pcm *pcm = rtd->pcm;
308303 	size_t size = psc_dma_hardware.buffer_bytes_max;
309304 	int rc;
....@@ -341,10 +336,9 @@
341336 	return -ENOMEM;
342337 }
343338 
344
-static void psc_dma_free(struct snd_pcm *pcm)
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+static void psc_dma_free(struct snd_soc_component *component,
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+			 struct snd_pcm *pcm)
345341 {
346
-	struct snd_soc_pcm_runtime *rtd = pcm->private_data;
347
-	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
348342 	struct snd_pcm_substream *substream;
349343 	int stream;
350344 
....@@ -362,9 +356,14 @@
362356 
363357 static const struct snd_soc_component_driver mpc5200_audio_dma_component = {
364358 	.name		= DRV_NAME,
365
-	.ops		= &psc_dma_ops,
366
-	.pcm_new	= &psc_dma_new,
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-	.pcm_free	= &psc_dma_free,
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+	.open		= psc_dma_open,
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+	.close		= psc_dma_close,
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+	.hw_free	= psc_dma_hw_free,
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+	.pointer	= psc_dma_pointer,
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+	.trigger	= psc_dma_trigger,
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+	.hw_params	= psc_dma_hw_params,
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+	.pcm_construct	= psc_dma_new,
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+	.pcm_destruct	= psc_dma_free,
368367 };
369368 
370369 int mpc5200_audio_dma_create(struct platform_device *op)