diff options
| author | Vinod Koul <vinod.koul@intel.com> | 2016-09-26 07:35:28 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-10-28 20:05:48 +0200 |
| commit | f999d1fd69ede11012a872cbdba33bd9c9c2e386 (patch) | |
| tree | 30e85621453dab0d6b6242db70d040efb6353ad1 | |
| parent | ASoC: Intel: atom: Add debug information related to FW version (diff) | |
| download | linux-f999d1fd69ede11012a872cbdba33bd9c9c2e386.tar.xz linux-f999d1fd69ede11012a872cbdba33bd9c9c2e386.zip | |
ASoC: Intel: Add check_dsp_lp_on callback on IPC
Some controllers support power modes which can't communicate using IPC.
So add a callback to check and wake DSP before sending IPC and then put
to sleep if it is in these power modes.
Signed-off-by: Jayachandran B <jayachandran.b@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/intel/common/sst-ipc.c | 19 | ||||
| -rw-r--r-- | sound/soc/intel/common/sst-ipc.h | 1 |
2 files changed, 19 insertions, 1 deletions
diff --git a/sound/soc/intel/common/sst-ipc.c b/sound/soc/intel/common/sst-ipc.c index 6c672ac79cce..45a85190a081 100644 --- a/sound/soc/intel/common/sst-ipc.c +++ b/sound/soc/intel/common/sst-ipc.c @@ -190,8 +190,25 @@ static void ipc_tx_msgs(struct kthread_work *work) int sst_ipc_tx_message_wait(struct sst_generic_ipc *ipc, u64 header, void *tx_data, size_t tx_bytes, void *rx_data, size_t rx_bytes) { - return ipc_tx_message(ipc, header, tx_data, tx_bytes, + int ret; + + /* + * DSP maybe in lower power active state, so + * check if the DSP supports DSP lp On method + * if so invoke that before sending IPC + */ + if (ipc->ops.check_dsp_lp_on) + if (ipc->ops.check_dsp_lp_on(ipc->dsp, true)) + return -EIO; + + ret = ipc_tx_message(ipc, header, tx_data, tx_bytes, rx_data, rx_bytes, 1); + + if (ipc->ops.check_dsp_lp_on) + if (ipc->ops.check_dsp_lp_on(ipc->dsp, false)) + return -EIO; + + return ret; } EXPORT_SYMBOL_GPL(sst_ipc_tx_message_wait); diff --git a/sound/soc/intel/common/sst-ipc.h b/sound/soc/intel/common/sst-ipc.h index ceb7e468a3fa..46871a5dff1d 100644 --- a/sound/soc/intel/common/sst-ipc.h +++ b/sound/soc/intel/common/sst-ipc.h @@ -52,6 +52,7 @@ struct sst_plat_ipc_ops { void (*tx_data_copy)(struct ipc_message *, char *, size_t); u64 (*reply_msg_match)(u64 header, u64 *mask); bool (*is_dsp_busy)(struct sst_dsp *dsp); + int (*check_dsp_lp_on)(struct sst_dsp *dsp, bool state); }; /* SST generic IPC data */ |