linux-kernel - [PATCH 15/19] soundwire: amd: add startup and shutdown dai ops

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Date:   Wed, 11 Jan 2023 14:32:18 +0530
From:   Vijendar Mukunda <Vijendar.Mukunda@....com>
To:     <broonie@...nel.org>, <vkoul@...nel.org>,
        <alsa-devel@...a-project.org>
CC:     <Basavaraj.Hiregoudar@....com>, <Sunil-kumar.Dommati@....com>,
        <Mario.Limonciello@....com>, <Mastan.Katragadda@....com>,
        <arungopal.kondaveeti@....com>,
        Vijendar Mukunda <Vijendar.Mukunda@....com>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Sanyog Kale <sanyog.r.kale@...el.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: [PATCH 15/19] soundwire: amd: add startup and shutdown dai ops

Add start up and shutdown dai ops for AMD Master driver.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@....com>
---
 drivers/soundwire/amd_master.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/drivers/soundwire/amd_master.c b/drivers/soundwire/amd_master.c
index d2d7f07de202..290c59ab7760 100644
--- a/drivers/soundwire/amd_master.c
+++ b/drivers/soundwire/amd_master.c
@@ -1117,6 +1117,15 @@ static int amd_set_sdw_stream(struct snd_soc_dai *dai, void *stream, int directi
 	return 0;
 }
 
+static void amd_sdwc_shutdown(struct snd_pcm_substream *substream,
+			      struct snd_soc_dai *dai)
+{
+	struct amd_sdwc_ctrl *ctrl = snd_soc_dai_get_drvdata(dai);
+
+	pm_runtime_mark_last_busy(ctrl->dev);
+	pm_runtime_put_autosuspend(ctrl->dev);
+}
+
 static int amd_pcm_set_sdw_stream(struct snd_soc_dai *dai, void *stream, int direction)
 {
 	return amd_set_sdw_stream(dai, stream, direction);
@@ -1137,9 +1146,27 @@ static void *amd_get_sdw_stream(struct snd_soc_dai *dai, int direction)
 	return dma->stream;
 }
 
+static int amd_sdwc_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+	struct amd_sdwc_ctrl *ctrl = snd_soc_dai_get_drvdata(dai);
+	int ret;
+
+	ret = pm_runtime_get_sync(ctrl->dev);
+	if (ret < 0 && ret != -EACCES) {
+		dev_err_ratelimited(ctrl->dev,
+				    "pm_runtime_get_sync failed in %s, ret %d\n",
+				     __func__, ret);
+		pm_runtime_put_noidle(ctrl->dev);
+		return ret;
+	}
+	return 0;
+}
+
 static const struct snd_soc_dai_ops amd_sdwc_dai_ops = {
 	.hw_params = amd_sdwc_hw_params,
 	.hw_free = amd_sdwc_hw_free,
+	.startup = amd_sdwc_startup,
+	.shutdown = amd_sdwc_shutdown,
 	.set_stream = amd_pcm_set_sdw_stream,
 	.get_stream = amd_get_sdw_stream,
 };
-- 
2.34.1