[alsa-devel] [PATCH RFC v2 4/4] ASoC: add warning if the function is not support multi cpu yet.

[Bard liao]

Multi cpu is not supported by all functions yet. Add a warning message
to warn it.

Suggested-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Signed-off-by: Bard liao <yung-chuan.liao at linux.intel.com>
---
 sound/soc/soc-compress.c              |  7 ++++---
 sound/soc/soc-generic-dmaengine-pcm.c | 12 ++++++++++++
 sound/soc/soc-pcm.c                   | 12 ++++++++++++
 3 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index 223cd045719e..bf9d6a21bcd9 100644
--- a/sound/soc/soc-compress.c
+++ b/sound/soc/soc-compress.c
@@ -810,10 +810,11 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
 	int playback = 0, capture = 0;
 	int i;
 
-	if (rtd->num_codecs > 1) {
+	if (rtd->num_cpus > 1 ||
+	    rtd->num_codecs) {
 		dev_err(rtd->card->dev,
-			"Compress ASoC: Multicodec not supported\n");
-		return -EINVAL;
+			"Compress ASoC: Multi CPU/Codec not supported\n");
+		return -ENOTSUPP;
 	}
 
 	/* check client and interface hw capabilities */
diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index df57ec47ad60..a6c8623d03be 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -62,6 +62,10 @@ int snd_dmaengine_pcm_prepare_slave_config(struct snd_pcm_substream *substream,
 	struct snd_dmaengine_dai_dma_data *dma_data;
 	int ret;
 
+	if (rtd->num_cpus > 1)
+		dev_warn(rtd->dev,
+			 "%s doesn't support Multi CPU yet\n", __func__);
+
 	dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
 
 	ret = snd_hwparams_to_dma_slave_config(substream, params, slave_config);
@@ -119,6 +123,10 @@ dmaengine_pcm_set_runtime_hwparams(struct snd_soc_component *component,
 	struct snd_pcm_hardware hw;
 	int ret;
 
+	if (rtd->num_cpus > 1)
+		dev_warn(rtd->dev,
+			 "%s doesn't support Multi CPU yet\n", __func__);
+
 	if (pcm->config && pcm->config->pcm_hardware)
 		return snd_soc_set_runtime_hwparams(substream,
 				pcm->config->pcm_hardware);
@@ -183,6 +191,10 @@ static struct dma_chan *dmaengine_pcm_compat_request_channel(
 	struct snd_dmaengine_dai_dma_data *dma_data;
 	dma_filter_fn fn = NULL;
 
+	if (rtd->num_cpus > 1)
+		dev_warn(rtd->dev,
+			 "%s doesn't support Multi CPU yet\n", __func__);
+
 	dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
 
 	if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) && pcm->chan[0])
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 52c6f3c3ab63..e16af8effffa 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1469,6 +1469,10 @@ int dpcm_path_get(struct snd_soc_pcm_runtime *fe,
 	struct snd_soc_dai *cpu_dai = fe->cpu_dai;
 	int paths;
 
+	if (fe->num_cpus > 1)
+		dev_warn(fe->dev,
+			 "%s doesn't support Multi CPU yet\n", __func__);
+
 	/* get number of valid DAI paths and their widgets */
 	paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, list,
 			dpcm_end_walk_at_be);
@@ -2812,6 +2816,10 @@ static int soc_dpcm_fe_runtime_update(struct snd_soc_pcm_runtime *fe, int new)
 	struct snd_soc_dapm_widget_list *list;
 	int count, paths;
 
+	if (fe->num_cpus > 1)
+		dev_warn(fe->dev,
+			 "%s doesn't support Multi CPU yet\n", __func__);
+
 	if (!fe->dai_link->dynamic)
 		return 0;
 
@@ -3368,6 +3376,10 @@ static ssize_t dpcm_state_read_file(struct file *file, char __user *user_buf,
 	ssize_t out_count = PAGE_SIZE, offset = 0, ret = 0;
 	char *buf;
 
+	if (fe->num_cpus > 1)
+		dev_warn(fe->dev,
+			 "%s doesn't support Multi CPU yet\n", __func__);
+
 	buf = kmalloc(out_count, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
-- 
2.17.1