From: Keyon Jie yang.jie@linux.intel.com
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@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- 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;