From: Keyon Jie <yang.jie@xxxxxxxxxxxxxxx>
Add field d0_substate to struct snd_sof_dev to store the current DSP
D0 sub-state(only meaningful when DSP in D0), which could be D0I0 or
D0I3.
Signed-off-by: Keyon Jie <yang.jie@xxxxxxxxxxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
sound/soc/sof/sof-priv.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
index 2d40de5ee285..481dfe4ee2d0 100644
--- a/sound/soc/sof/sof-priv.h
+++ b/sound/soc/sof/sof-priv.h
@@ -68,6 +68,12 @@ extern int sof_core_debug;
#define DMA_CHAN_INVALID 0xFFFFFFFF
+/* DSP D0ix sub-state */
+enum sof_d0_substate {
+ SOF_DSP_D0I0 = 0, /* DSP default D0 substate */
+ SOF_DSP_D0I3, /* DSP D0i3(low power) substate*/
+};
+
struct snd_sof_dev;
struct snd_sof_ipc_msg;
struct snd_sof_ipc;
@@ -387,6 +393,9 @@ struct snd_sof_dev {
*/
struct snd_soc_component_driver plat_drv;
+ /* power states related */
+ enum sof_d0_substate d0_substate;
+
/* DSP firmware boot */
wait_queue_head_t boot_wait;
u32 boot_complete;
--
2.20.1
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