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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2019-04-04 09:52:15 +0900
committerMark Brown <broonie@kernel.org>2019-04-04 14:58:31 +0700
commitc2c616021d64d952dc9d37793924ce57833d7754 (patch)
treee406472f2dd6df4f7f0cbb4f162bbf85f27a41e5 /sound
parent7297ba6c74c5b9e78d8e936af82eecfcf7d32dfb (diff)
downloadlinux-c2c616021d64d952dc9d37793924ce57833d7754.tar.bz2
ASoC: audio-graph-card: don't select DPCM via audio-graph-card
commit ae3cb5790906b ("ASoC: audio-graph-card: merge audio-graph-scu-card") merged audio-graph-scu-card which can handle DPCM into audio-graph-card. By this patch, the judgement to select "normal sound card" or "DPCM sound card" is based on its OF-graph endpoint connection. But, because of it, existing "audio-graph-card" user who is assuming "normal sound card" might select DPCM unintentionally. To solve this issue, this patch allows "audio-graph-card" user can select "normal sound card", and "audio-graph-scu-card" user can select both "normal sound card" and "DPCM sound card". This keeps compatibility collectry. Fixes: ae3cb5790906b ("ASoC: audio-graph-card: merge audio-graph-scu-card") Reported-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/generic/audio-graph-card.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
index bb12351330e8..69bc4848d787 100644
--- a/sound/soc/generic/audio-graph-card.c
+++ b/sound/soc/generic/audio-graph-card.c
@@ -20,6 +20,8 @@
#include <linux/string.h>
#include <sound/simple_card_utils.h>
+#define DPCM_SELECTABLE 1
+
struct graph_priv {
struct snd_soc_card snd_card;
struct graph_dai_props {
@@ -440,6 +442,7 @@ static int graph_for_each_link(struct graph_priv *priv,
struct device_node *codec_port;
struct device_node *codec_port_old = NULL;
struct asoc_simple_card_data adata;
+ uintptr_t dpcm_selectable = (uintptr_t)of_device_get_match_data(dev);
int rc, ret;
/* loop for all listed CPU port */
@@ -470,8 +473,9 @@ static int graph_for_each_link(struct graph_priv *priv,
* if Codec port has many endpoints,
* or has convert-xxx property
*/
- if ((of_get_child_count(codec_port) > 1) ||
- adata.convert_rate || adata.convert_channels)
+ if (dpcm_selectable &&
+ ((of_get_child_count(codec_port) > 1) ||
+ adata.convert_rate || adata.convert_channels))
ret = func_dpcm(priv, cpu_ep, codec_ep, li,
(codec_port_old == codec_port));
/* else normal sound */
@@ -732,7 +736,8 @@ static int graph_remove(struct platform_device *pdev)
static const struct of_device_id graph_of_match[] = {
{ .compatible = "audio-graph-card", },
- { .compatible = "audio-graph-scu-card", },
+ { .compatible = "audio-graph-scu-card",
+ .data = (void *)DPCM_SELECTABLE },
{},
};
MODULE_DEVICE_TABLE(of, graph_of_match);