1. 21 Apr, 2020 1 commit
    • Kuninori Morimoto's avatar
      ASoC: soc-compress: add snd_compress_ops · c6cb522c
      Kuninori Morimoto authored
      Current snd_soc_component_driver has compr_ops, and each driver can
      have callback via it. But, it is mainly created for ALSA, thus, it
      doesn't have "component" as parameter.
      Thus, each callback can't know it is called for which component.
      Each callback currently is getting "component" by using
      snd_soc_rtdcom_lookup() with driver name.
      
      	--- ALSA SoC  ---
      	...
      	if (component->driver->compr_ops &&
      	    component->driver->compr_ops->open)
      =>		return component->driver->compr_ops->open(stream);
      	...
      
      	--- driver ---
      	static int xxx_open(struct snd_compr_stream *stream)
      	{
      		struct snd_soc_pcm_runtime *rtd = stream->private_data;
      =>		struct snd_soc_component *component = snd_soc_rtdcom_lookup(..);
      		...
      	}
      
      It works today, but, will not work in the future if we support multi
      CPU/Codec/Platform, because 1 rtd might have multiple same driver
      name component.
      
      To solve this issue, each callback need to be called with component.
      We already have many component driver callbacks.
      This patch adds new snd_compress_ops, and call it with "component".
      
      	--- ALSA SoC  ---
      	...
      	if (component->driver->compress_ops->open)
      =>		return component->driver->compress_ops->open(
      			component, substream);
      			~~~~~~~~~
      	...
      
      	--- driver ---
      	static int xxx_open(struct snd_soc_component *component,
      			    struct snd_compr_stream *stream)
      	{
      =>		/* it don't need to use snd_soc_rtdcom_lookup() */
      		...
      	}
      Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
      Tested-by: default avatarCharles Keepax <ckeepax@opensource.cirrus.com>
      Reviewed-by: default avatarCharles Keepax <ckeepax@opensource.cirrus.com>
      Reviewed-by: default avatarRanjani Sridharan <ranjani.sridharan@linux.intel.com>
      Link: https://lore.kernel.org/r/87v9luvdmh.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: default avatarMark Brown <broonie@kernel.org>
      c6cb522c
  2. 20 Apr, 2020 15 commits
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