From 819b9f6002391925b53817ed96638bd40bd1d34f Mon Sep 17 00:00:00 2001 From: Dharageswari R Date: Tue, 8 Sep 2020 12:28:24 +0300 Subject: [PATCH] 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 Reviewed-by: Guennadi Liakhovetski Reviewed-by: Ranjani Sridharan Reviewed-by: Pierre-Louis Bossart Signed-off-by: Kai Vehmanen Link: https://lore.kernel.org/r/20200908092825.1813847-1-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown --- sound/soc/soc-topology.c | 7 ++++--- 1 file 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 */ -- 2.11.0