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@linaro.org>
Link: https://lore.kernel.org/r/20200317092645.5705-1-srinivas.kandagatla@linaro.org
[fix checkpatch error for "void * qcom_swrm_get_sdw_stream"]
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index 1c6c6a2..1ab3ec7 100644 (file)
--- 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)
 {
@@ -631,6 +638,7 @@ 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 = {