Add generic functions to support DSP sleep, wake and stall.
Signed-off-by: Liam Girdwood liam.r.girdwood@linux.intel.com --- sound/soc/intel/sst-dsp-priv.h | 3 +++ sound/soc/intel/sst-dsp.c | 23 +++++++++++++++++++++++ sound/soc/intel/sst-dsp.h | 4 ++++ 3 files changed, 30 insertions(+)
diff --git a/sound/soc/intel/sst-dsp-priv.h b/sound/soc/intel/sst-dsp-priv.h index be81b86..b9da030 100644 --- a/sound/soc/intel/sst-dsp-priv.h +++ b/sound/soc/intel/sst-dsp-priv.h @@ -36,6 +36,9 @@ struct sst_ops { /* DSP core boot / reset */ void (*boot)(struct sst_dsp *); void (*reset)(struct sst_dsp *); + int (*wake)(struct sst_dsp *); + void (*sleep)(struct sst_dsp *); + void (*stall)(struct sst_dsp *);
/* Shim IO */ void (*write)(void __iomem *addr, u32 offset, u32 value); diff --git a/sound/soc/intel/sst-dsp.c b/sound/soc/intel/sst-dsp.c index d0fc685..86e4108 100644 --- a/sound/soc/intel/sst-dsp.c +++ b/sound/soc/intel/sst-dsp.c @@ -245,6 +245,29 @@ int sst_dsp_boot(struct sst_dsp *sst) } EXPORT_SYMBOL_GPL(sst_dsp_boot);
+int sst_dsp_wake(struct sst_dsp *sst) +{ + if (sst->ops->wake) + return sst->ops->wake(sst); + + return 0; +} +EXPORT_SYMBOL_GPL(sst_dsp_wake); + +void sst_dsp_sleep(struct sst_dsp *sst) +{ + if (sst->ops->sleep) + sst->ops->sleep(sst); +} +EXPORT_SYMBOL_GPL(sst_dsp_sleep); + +void sst_dsp_stall(struct sst_dsp *sst) +{ + if (sst->ops->stall) + sst->ops->stall(sst); +} +EXPORT_SYMBOL_GPL(sst_dsp_stall); + void sst_dsp_ipc_msg_tx(struct sst_dsp *dsp, u32 msg) { sst_dsp_shim_write_unlocked(dsp, SST_IPCX, msg | SST_IPCX_BUSY); diff --git a/sound/soc/intel/sst-dsp.h b/sound/soc/intel/sst-dsp.h index 17ee923..7bb4820 100644 --- a/sound/soc/intel/sst-dsp.h +++ b/sound/soc/intel/sst-dsp.h @@ -245,6 +245,10 @@ void sst_memcpy_fromio_32(struct sst_dsp *sst, /* DSP reset & boot */ void sst_dsp_reset(struct sst_dsp *sst); int sst_dsp_boot(struct sst_dsp *sst); +int sst_dsp_wake(struct sst_dsp *sst); +void sst_dsp_sleep(struct sst_dsp *sst); +void sst_dsp_stall(struct sst_dsp *sst); + /* DMA */ int sst_dsp_dma_get_channel(struct sst_dsp *dsp, int chan_id); void sst_dsp_dma_put_channel(struct sst_dsp *dsp);