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asoc: Add dummy PCM backend

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Add dummy PCM backend definition for virtual devices.
This is being added to support echo reference capture.

Change-Id: If44ca144dbcf478a898380a094e42c866590890f
Signed-off-by: Zihao Lin <quic_zihalin@quicinc.com>
This commit is contained in:
Zihao Lin
2024-01-15 10:27:00 +08:00
parent 74ecbee24e
commit 4b6288d849
1 changed files with 11 additions and 1 deletions
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12
asoc/gvm_auto_spf_dummy.c
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@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only // SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2014-2021, The Linux Foundation. All rights reserved. /* Copyright (c) 2014-2021, The Linux Foundation. All rights reserved.
* Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved. * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
*/ */
#include <linux/clk.h> #include <linux/clk.h>
@@ -487,6 +487,16 @@ static struct snd_soc_dai_link msm_gvm_auto_dai_links[] = {
.ignore_pmdown_time = 1, .ignore_pmdown_time = 1,
SND_SOC_DAILINK_REG(hs_if4_tdm_tx_0_dummy), SND_SOC_DAILINK_REG(hs_if4_tdm_tx_0_dummy),
}, },
{
.name = "PCM_DUMMY-TX-0",
.stream_name = "PCM_DUMMY-TX-0",
.dpcm_capture = 1,
.trigger = {SND_SOC_DPCM_TRIGGER_POST,
SND_SOC_DPCM_TRIGGER_POST},
.ignore_suspend = 1,
.ignore_pmdown_time = 1,
SND_SOC_DAILINK_REG(pcm_dummy_tx0),
},
}; };
int snd_card_notify_user(snd_card_status_t card_status) int snd_card_notify_user(snd_card_status_t card_status)