[v2,08/11] ASoC: SOF: Intel: hda: add parameter to control SoundWire clock stop quirks
diff mbox series

Message ID 20200325215027.28716-9-pierre-louis.bossart@linux.intel.com
State New
Headers show
Series
  • ASoC: SOF: Intel: add SoundWire support
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Commit Message

Pierre-Louis Bossart March 25, 2020, 9:50 p.m. UTC
Add module parameter so that the different modes can be quickly tested.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
 sound/soc/sof/intel/hda.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

Patch
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diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
index ee4f1ceca883..1e69cfcee8e0 100644
--- a/sound/soc/sof/intel/hda.c
+++ b/sound/soc/sof/intel/hda.c
@@ -40,6 +40,16 @@ 
 
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE)
 
+/*
+ * The default for SoundWire clock stop quirks is to power gate the IP
+ * and do a Bus Reset, this will need to be modified when the DSP
+ * needs to remain in D0i3 so that the Master does not lose context
+ * and enumeration is not required on clock restart
+ */
+static int sdw_clock_stop_quirks = SDW_INTEL_CLK_STOP_BUS_RESET;
+module_param(sdw_clock_stop_quirks, int, 0444);
+MODULE_PARM_DESC(sdw_clock_stop_quirks, "SOF SoundWire clock stop quirks");
+
 static int sdw_params_stream(struct device *dev,
 			     struct sdw_intel_stream_params_data *params_data)
 {
@@ -149,6 +159,7 @@  static int hda_sdw_probe(struct snd_sof_dev *sdev)
 	res.parent = sdev->dev;
 	res.ops = &sdw_callback;
 	res.dev = sdev->dev;
+	res.clock_stop_quirks = sdw_clock_stop_quirks;
 
 	/*
 	 * ops and arg fields are not populated for now,