ASoC: amd: Fix reference to PCM buffer address

PCM buffers might be allocated dynamically when the buffer
preallocation failed or a larger buffer is requested, and it's not
guaranteed that substream->dma_buffer points to the actually used
buffer.  The driver needs to refer to substream->runtime->dma_addr
instead for the buffer address.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20210731084331.32225-1-tiwai@suse.deSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/acp-pcm-dma.c

@@ -969,7 +969,7 @@ static int acp_dma_hw_params(struct snd_soc_component *component,
 
 	acp_set_sram_bank_state(rtd->acp_mmio, 0, true);
 	/* Save for runtime private data */
-	rtd->dma_addr = substream->dma_buffer.addr;
+	rtd->dma_addr = runtime->dma_addr;
 	rtd->order = get_order(size);
 
 	/* Fill the page table entries in ACP SRAM */

sound/soc/amd/raven/acp3x-pcm-dma.c

@@ -286,7 +286,7 @@ static int acp3x_dma_hw_params(struct snd_soc_component *component,
 		pr_err("pinfo failed\n");
 	}
 	size = params_buffer_bytes(params);
-	rtd->dma_addr = substream->dma_buffer.addr;
+	rtd->dma_addr = substream->runtime->dma_addr;
 	rtd->num_pages = (PAGE_ALIGN(size) >> PAGE_SHIFT);
 	config_acp3x_dma(rtd, substream->stream);
 	return 0;

sound/soc/amd/renoir/acp3x-pdm-dma.c

@@ -242,7 +242,7 @@ static int acp_pdm_dma_hw_params(struct snd_soc_component *component,
 		return -EINVAL;
 	size = params_buffer_bytes(params);
 	period_bytes = params_period_bytes(params);
-	rtd->dma_addr = substream->dma_buffer.addr;
+	rtd->dma_addr = substream->runtime->dma_addr;
 	rtd->num_pages = (PAGE_ALIGN(size) >> PAGE_SHIFT);
 	config_acp_dma(rtd, substream->stream);
 	init_pdm_ring_buffer(MEM_WINDOW_START, size, period_bytes,