linux-kernel - [PATCH] soundwire: qcom: add support for get_sdw

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Date:   Tue, 17 Mar 2020 09:26:45 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     vkoul@...nel.org
Cc:     pierre-louis.bossart@...ux.intel.com, linux-kernel@...r.kernel.org,
        alsa-devel@...a-project.org,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH] soundwire: qcom: add support for get_sdw_stream()

Adding support to new get_sdw_stream() that can help machine
driver to deal with soundwire stream.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 drivers/soundwire/qcom.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index 440effed6df6..ba810fbfa3c7 100644
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -588,6 +588,13 @@ static int qcom_swrm_set_sdw_stream(struct snd_soc_dai *dai,
 	return 0;
 }
 
+static void * qcom_swrm_get_sdw_stream(struct snd_soc_dai *dai, int direction)
+{
+	struct qcom_swrm_ctrl *ctrl = dev_get_drvdata(dai->dev);
+
+	return ctrl->sruntime[dai->id];
+}
+
 static int qcom_swrm_startup(struct snd_pcm_substream *substream,
 			     struct snd_soc_dai *dai)
 {
@@ -632,6 +639,7 @@ static const struct snd_soc_dai_ops qcom_swrm_pdm_dai_ops = {
 	.startup = qcom_swrm_startup,
 	.shutdown = qcom_swrm_shutdown,
 	.set_sdw_stream = qcom_swrm_set_sdw_stream,
+	.get_sdw_stream = qcom_swrm_get_sdw_stream,
 };
 
 static const struct snd_soc_component_driver qcom_swrm_dai_component = {
-- 
2.21.0