ASoC: soc-pcm: remove soc_rtdcom_ack()

No ALSA SoC driver has .ack at component->driver->ops.
We can revive it if some-driver want to use it, but let's remove it
so far to avoid maintaining complex code

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87muh15roz.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index ce7297c375372c69e000c410f2b2eb32010ac61f..bf04b69d68780fc9aba4acc6dd183a63ac27e16a 100644 (file)
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -2873,26 +2873,6 @@ static void soc_pcm_private_free(struct snd_pcm *pcm)
        }
 }
 
-static int soc_rtdcom_ack(struct snd_pcm_substream *substream)
-{
-       struct snd_soc_pcm_runtime *rtd = substream->private_data;
-       struct snd_soc_rtdcom_list *rtdcom;
-       struct snd_soc_component *component;
-
-       for_each_rtdcom(rtd, rtdcom) {
-               component = rtdcom->component;
-
-               if (!component->driver->ops ||
-                   !component->driver->ops->ack)
-                       continue;
-
-               /* FIXME. it returns 1st ask now */
-               return component->driver->ops->ack(substream);
-       }
-
-       return -EINVAL;
-}
-
 static int soc_rtdcom_copy_user(struct snd_pcm_substream *substream, int channel,
                                unsigned long pos, void __user *buf,
                                unsigned long bytes)
@@ -3129,8 +3109,6 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
                if (!ops)
                        continue;
 
-               if (ops->ack)
-                       rtd->ops.ack            = soc_rtdcom_ack;
                if (ops->copy_user)
                        rtd->ops.copy_user      = soc_rtdcom_copy_user;
                if (ops->copy_kernel)