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authorDharageswari R <dharageswari.r@intel.com>2020-09-08 12:28:24 +0300
committerMark Brown <broonie@kernel.org>2020-09-08 13:54:59 +0100
commit819b9f6002391925b53817ed96638bd40bd1d34f (patch)
tree48da27d9272922bfd0dfc5f11ede77787d4da4de
parent34ce41003bcbff8b20a30eb0938478b156e57a2d (diff)
ASoC: topology: Add support for WO and RO TLV byte kcontrols
This patch adds support for write-only and read-only TLV byte kcontrols by checking for appropriate get/put IO handlers. Signed-off-by: Dharageswari R <dharageswari.r@intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Link: https://lore.kernel.org/r/20200908092825.1813847-1-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r--sound/soc/soc-topology.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index cee998671318..28faaf58326e 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -603,10 +603,11 @@ static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
sbe->get = ext_ops[i].get;
}
- if (sbe->put && sbe->get)
- return 0;
- else
+ if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) && !sbe->get)
return -EINVAL;
+ if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) && !sbe->put)
+ return -EINVAL;
+ return 0;
}
/* try and map vendor specific kcontrol handlers first */