[alsa-devel] [PATCH 03/26] ASoC: SOF: add set_power_state() to dsp_ops for power state update

[Pierre-Louis Bossart]

From: Keyon Jie <yang.jie at linux.intel.com>

D0i3 is a platform-defined substate of D0, so we need a
platform-specific callback in dsp_ops to handle the relevant
configurations.

Signed-off-by: Keyon Jie <yang.jie at linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
---
 sound/soc/sof/ops.h      | 9 +++++++++
 sound/soc/sof/sof-priv.h | 2 ++
 2 files changed, 11 insertions(+)

diff --git a/sound/soc/sof/ops.h b/sound/soc/sof/ops.h
index 824d36fe59fd..d7c8fc06f961 100644
--- a/sound/soc/sof/ops.h
+++ b/sound/soc/sof/ops.h
@@ -193,6 +193,15 @@ static inline int snd_sof_dsp_set_clk(struct snd_sof_dev *sdev, u32 freq)
 	return 0;
 }
 
+static inline int snd_sof_dsp_set_power_state(struct snd_sof_dev *sdev,
+					      enum sof_d0_substate substate)
+{
+	if (sof_ops(sdev)->set_power_state)
+		return sof_ops(sdev)->set_power_state(sdev, substate);
+
+	return 0;
+}
+
 /* debug */
 static inline void snd_sof_dsp_dbg_dump(struct snd_sof_dev *sdev, u32 flags)
 {
diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
index 481dfe4ee2d0..e9902e4e8e55 100644
--- a/sound/soc/sof/sof-priv.h
+++ b/sound/soc/sof/sof-priv.h
@@ -189,6 +189,8 @@ struct snd_sof_dsp_ops {
 	int (*runtime_resume)(struct snd_sof_dev *sof_dev); /* optional */
 	int (*runtime_idle)(struct snd_sof_dev *sof_dev); /* optional */
 	int (*set_hw_params_upon_resume)(struct snd_sof_dev *sdev); /* optional */
+	int (*set_power_state)(struct snd_sof_dev *sdev,
+			       enum sof_d0_substate d0_substate); /* optional */
 
 	/* DSP clocking */
 	int (*set_clk)(struct snd_sof_dev *sof_dev, u32 freq); /* optional */
-- 
2.20.1