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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/sound/soc/au1x/dma.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Au1000/Au1500/Au1100 Audio DMA support.
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  *
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@@ -173,27 +174,28 @@
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 	.fifo_size	  = 16,
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 };
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-static inline struct alchemy_pcm_ctx *ss_to_ctx(struct snd_pcm_substream *ss)
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+static inline struct alchemy_pcm_ctx *ss_to_ctx(struct snd_pcm_substream *ss,
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+						struct snd_soc_component *component)
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 {
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-	struct snd_soc_pcm_runtime *rtd = ss->private_data;
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-	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
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 	return snd_soc_component_get_drvdata(component);
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 }
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-static inline struct audio_stream *ss_to_as(struct snd_pcm_substream *ss)
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+static inline struct audio_stream *ss_to_as(struct snd_pcm_substream *ss,
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+					    struct snd_soc_component *component)
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 {
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-	struct alchemy_pcm_ctx *ctx = ss_to_ctx(ss);
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+	struct alchemy_pcm_ctx *ctx = ss_to_ctx(ss, component);
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 	return &(ctx->stream[ss->stream]);
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 }
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-static int alchemy_pcm_open(struct snd_pcm_substream *substream)
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+static int alchemy_pcm_open(struct snd_soc_component *component,
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+			    struct snd_pcm_substream *substream)
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 {
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-	struct alchemy_pcm_ctx *ctx = ss_to_ctx(substream);
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-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
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+	struct alchemy_pcm_ctx *ctx = ss_to_ctx(substream, component);
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+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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 	int *dmaids, s = substream->stream;
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 	char *name;
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-	dmaids = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
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+	dmaids = snd_soc_dai_get_dma_data(asoc_rtd_to_cpu(rtd, 0), substream);
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 	if (!dmaids)
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 		return -ENODEV;	/* whoa, has ordering changed? */
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@@ -212,9 +214,10 @@
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 	return 0;
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 }
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-static int alchemy_pcm_close(struct snd_pcm_substream *substream)
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+static int alchemy_pcm_close(struct snd_soc_component *component,
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+			     struct snd_pcm_substream *substream)
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 {
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-	struct alchemy_pcm_ctx *ctx = ss_to_ctx(substream);
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+	struct alchemy_pcm_ctx *ctx = ss_to_ctx(substream, component);
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 	int stype = substream->stream;
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 	ctx->stream[stype].substream = NULL;
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@@ -223,35 +226,29 @@
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 	return 0;
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 }
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-static int alchemy_pcm_hw_params(struct snd_pcm_substream *substream,
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+static int alchemy_pcm_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 *hw_params)
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 {
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-	struct audio_stream *stream = ss_to_as(substream);
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-	int err;
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+	struct audio_stream *stream = ss_to_as(substream, component);
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-	err = snd_pcm_lib_malloc_pages(substream,
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-				       params_buffer_bytes(hw_params));
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-	if (err < 0)
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-		return err;
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-	err = au1000_setup_dma_link(stream,
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-				    params_period_bytes(hw_params),
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-				    params_periods(hw_params));
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-	if (err)
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-		snd_pcm_lib_free_pages(substream);
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-
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-	return err;
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+	return au1000_setup_dma_link(stream,
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+				     params_period_bytes(hw_params),
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+				     params_periods(hw_params));
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 }
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-static int alchemy_pcm_hw_free(struct snd_pcm_substream *substream)
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+static int alchemy_pcm_hw_free(struct snd_soc_component *component,
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+			       struct snd_pcm_substream *substream)
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 {
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-	struct audio_stream *stream = ss_to_as(substream);
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+	struct audio_stream *stream = ss_to_as(substream, component);
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 	au1000_release_dma_link(stream);
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-	return snd_pcm_lib_free_pages(substream);
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+	return 0;
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 }
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-static int alchemy_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
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+static int alchemy_pcm_trigger(struct snd_soc_component *component,
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+			       struct snd_pcm_substream *substream, int cmd)
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 {
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-	struct audio_stream *stream = ss_to_as(substream);
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+	struct audio_stream *stream = ss_to_as(substream, component);
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 	int err = 0;
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 	switch (cmd) {
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@@ -268,9 +265,10 @@
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 	return err;
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 }
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-static snd_pcm_uframes_t alchemy_pcm_pointer(struct snd_pcm_substream *ss)
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+static snd_pcm_uframes_t alchemy_pcm_pointer(struct snd_soc_component *component,
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+					     struct snd_pcm_substream *ss)
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 {
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-	struct audio_stream *stream = ss_to_as(ss);
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+	struct audio_stream *stream = ss_to_as(ss, component);
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 	long location;
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 	location = get_dma_residue(stream->dma);
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@@ -280,30 +278,26 @@
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 	return bytes_to_frames(ss->runtime, location);
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 }
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-static const struct snd_pcm_ops alchemy_pcm_ops = {
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-	.open			= alchemy_pcm_open,
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-	.close			= alchemy_pcm_close,
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-	.ioctl			= snd_pcm_lib_ioctl,
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-	.hw_params	        = alchemy_pcm_hw_params,
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-	.hw_free	        = alchemy_pcm_hw_free,
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-	.trigger		= alchemy_pcm_trigger,
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-	.pointer		= alchemy_pcm_pointer,
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-};
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-
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-static int alchemy_pcm_new(struct snd_soc_pcm_runtime *rtd)
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+static int alchemy_pcm_new(struct snd_soc_component *component,
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+			   struct snd_soc_pcm_runtime *rtd)
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 {
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 	struct snd_pcm *pcm = rtd->pcm;
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-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
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-		snd_dma_continuous_data(GFP_KERNEL), 65536, (4096 * 1024) - 1);
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+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
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+				       NULL, 65536, (4096 * 1024) - 1);
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 	return 0;
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 }
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 static struct snd_soc_component_driver alchemy_pcm_soc_component = {
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 	.name		= DRV_NAME,
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-	.ops		= &alchemy_pcm_ops,
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-	.pcm_new	= alchemy_pcm_new,
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+	.open		= alchemy_pcm_open,
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+	.close		= alchemy_pcm_close,
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+	.hw_params	= alchemy_pcm_hw_params,
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+	.hw_free	= alchemy_pcm_hw_free,
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+	.trigger	= alchemy_pcm_trigger,
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+	.pointer	= alchemy_pcm_pointer,
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+	.pcm_construct	= alchemy_pcm_new,
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 };
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 static int alchemy_pcm_drvprobe(struct platform_device *pdev)