[PATCH 11/15] ASoC: Intel: avs: Do not treat unsupported IPCs as invalid

[Cezary Rojewski]

Utilize NOT_SUPPORTED status code to differentiate between unsupported
and invalid requests. Skip over error paths if it is the former that is
communicated by the base firmware.

Signed-off-by: Cezary Rojewski <cezary.rojewski at intel.com>
---
 sound/soc/intel/avs/avs.h      | 4 +++-
 sound/soc/intel/avs/messages.h | 2 ++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/avs/avs.h b/sound/soc/intel/avs/avs.h
index 92e37722d280..91f78eb11bc1 100644
--- a/sound/soc/intel/avs/avs.h
+++ b/sound/soc/intel/avs/avs.h
@@ -220,8 +220,10 @@ static inline void avs_ipc_err(struct avs_dev *adev, struct avs_ipc_msg *tx,
 	/*
 	 * If IPC channel is blocked e.g.: due to ongoing recovery,
 	 * -EPERM error code is expected and thus it's not an actual error.
+	 *
+	 * Unsupported IPCs are of no harm either.
 	 */
-	if (error == -EPERM)
+	if (error == -EPERM || error == AVS_IPC_NOT_SUPPORTED)
 		dev_dbg(adev->dev, "%s 0x%08x 0x%08x failed: %d\n", name,
 			tx->glb.primary, tx->glb.ext.val, error);
 	else
diff --git a/sound/soc/intel/avs/messages.h b/sound/soc/intel/avs/messages.h
index c0f90dba9af8..02b3b7a74783 100644
--- a/sound/soc/intel/avs/messages.h
+++ b/sound/soc/intel/avs/messages.h
@@ -150,6 +150,8 @@ union avs_module_msg {
 	};
 } __packed;
 
+#define AVS_IPC_NOT_SUPPORTED 15
+
 union avs_reply_msg {
 	u64 val;
 	struct {
-- 
2.25.1