clear-pkgs-linux-iot-lts2018/0298-ASoC-Intel-Skylake-Extract-the-receive-response-size.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Leoni Prodduvaka <leoni.prodduvaka@intel.com>
Date: Thu, 16 Mar 2017 21:50:51 +0530
Subject: [PATCH] ASoC: Intel: Skylake: Extract the receive response size
 returned by the FW

The driver uses the rx_bytes value returned from firmware to copy the
response of the ipc.

Change-Id: I76b78c01ef83b28d6328de66249af84b4c99700f
Signed-off-by: Dharageswari R <dharageswari.r@intel.com>
Signed-off-by: Leoni Prodduvaka
Reviewed-on:
Reviewed-by: Koul, Vinod <vinod.koul@intel.com>
Reviewed-by: Diwakar, Praveen <praveen.diwakar@intel.com>
Reviewed-by: Kp, Jeeja <jeeja.kp@intel.com>
Tested-by: Sm, Bhadur A <bhadur.a.sm@intel.com>
---
 sound/soc/intel/skylake/skl-sst-ipc.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/skylake/skl-sst-ipc.c b/sound/soc/intel/skylake/skl-sst-ipc.c
index bf9f97bb36de..b3591c8de471 100644
--- a/sound/soc/intel/skylake/skl-sst-ipc.c
+++ b/sound/soc/intel/skylake/skl-sst-ipc.c
@@ -475,6 +475,10 @@ void skl_ipc_process_reply(struct sst_generic_ipc *ipc,
 	if (reply == IPC_GLB_REPLY_SUCCESS) {
 		dev_dbg(ipc->dev, "ipc FW reply %x: success\n", header.primary);
 		/* copy the rx data from the mailbox */
+		if (IPC_GLB_NOTIFY_MSG_TYPE(header.primary) ==
+				IPC_MOD_LARGE_CONFIG_GET)
+			msg->rx_size = header.extension &
+				IPC_DATA_OFFSET_SZ_MASK;
 		sst_dsp_inbox_read(ipc->dsp, msg->rx_data, msg->rx_size);
 		switch (IPC_GLB_NOTIFY_MSG_TYPE(header.primary)) {
 		case IPC_GLB_LOAD_MULTIPLE_MODS:
@@ -1039,15 +1043,27 @@ int skl_ipc_get_large_config(struct sst_generic_ipc *ipc,
 		dev_dbg(ipc->dev, "receiving offset: %#x, size: %#x\n",
 			(unsigned)data_offset, (unsigned)rx_size);
 
+		if (rx_bytes != NULL)
+			*rx_bytes = rx_size;
+
 		ret = sst_ipc_tx_message_wait(ipc, *ipc_header,
 			((char *)txparam), tx_bytes,
-			((char *)param) + data_offset, &rx_size);
+			((char *)param) + data_offset, rx_bytes);
+
 		if (ret < 0) {
 			dev_err(ipc->dev,
 				"ipc: get large config fail, err: %d\n", ret);
 			return ret;
 		}
+		/* exit as this is the final block */
+		if (header.extension | (0 << IPC_FINAL_BLOCK_SHIFT))
+			break;
+
+		if (rx_bytes != NULL)
+			rx_size = *rx_bytes;
+
 		sz_remaining -= rx_size;
+
 		data_offset = msg->param_data_size - sz_remaining;
 
 		/* clear the fields */
-- 
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