ASoC: Intel: Add sst_ipc_tx_message_nopm

If the DSP is in low power mode, it needs to be woken up by a "wake" IPC
to set it into the D0 state before we can send any other IPC command.

The call flow is that the driver calls sst_ipc_tx_message_wait() to send any
IPC and this call checks if the device is in low power mode and in that
case we need to send the wake IPC.

So add a new IPC nopm variant which can be called from driver and
doesn't check for power state (as we already know that) and avoids
circular dependency of again checking power state.

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>

diff --git a/sound/soc/intel/common/sst-ipc.c b/sound/soc/intel/common/sst-ipc.c
index 45a85190a081a9e554839f16bc86f6e9100f1855..2c1b3159ac1a30bcd92f735d22e6e40eb4717b9c 100644 (file)
--- a/sound/soc/intel/common/sst-ipc.c
+++ b/sound/soc/intel/common/sst-ipc.c
@@ -220,6 +220,14 @@ int sst_ipc_tx_message_nowait(struct sst_generic_ipc *ipc, u64 header,
 }
 EXPORT_SYMBOL_GPL(sst_ipc_tx_message_nowait);
 
+int sst_ipc_tx_message_nopm(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,
+               rx_data, rx_bytes, 1);
+}
+EXPORT_SYMBOL_GPL(sst_ipc_tx_message_nopm);
+
 struct ipc_message *sst_ipc_reply_find_msg(struct sst_generic_ipc *ipc,
        u64 header)
 {

diff --git a/sound/soc/intel/common/sst-ipc.h b/sound/soc/intel/common/sst-ipc.h
index 46871a5dff1def6762502eef48a7a460e0fbe1e5..f4aab1b3789a7acb7cd225c68af14c26de0f328d 100644 (file)
--- a/sound/soc/intel/common/sst-ipc.h
+++ b/sound/soc/intel/common/sst-ipc.h
@@ -82,6 +82,9 @@ int sst_ipc_tx_message_wait(struct sst_generic_ipc *ipc, u64 header,
 int sst_ipc_tx_message_nowait(struct sst_generic_ipc *ipc, u64 header,
        void *tx_data, size_t tx_bytes);
 
+int sst_ipc_tx_message_nopm(struct sst_generic_ipc *ipc, u64 header,
+       void *tx_data, size_t tx_bytes, void *rx_data, size_t rx_bytes);
+
 struct ipc_message *sst_ipc_reply_find_msg(struct sst_generic_ipc *ipc,
        u64 header);