clear-pkgs-linux-iot-lts2018/0235-ASoC-Intel-Add-delete-module-IPC.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Divya Prakash <divya1.prakash@intel.com>
Date: Sun, 10 Apr 2016 13:36:16 +0530
Subject: [PATCH] ASoC: Intel: Add delete module IPC

This IPC is to explicitly delete a module instance.
Till now, destroying a pipe was taking care of deleting
module instance in the pipe. This IPC would be needed in
the case of standalone modules like probe.

Change-Id: I6aa9bec8ae3b3311a3c43257cdcd354c7fd3712b
Signed-off-by: Divya Prakash
Reviewed-on:
Reviewed-by: Babu, Ramesh <ramesh.babu@intel.com>
Tested-by: Babu, Ramesh <ramesh.babu@intel.com>
---
 sound/soc/intel/skylake/skl-sst-ipc.c | 30 ++++++++++++++++++++++++++-
 sound/soc/intel/skylake/skl-sst-ipc.h |  3 +++
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/skylake/skl-sst-ipc.c b/sound/soc/intel/skylake/skl-sst-ipc.c
index d34ff3ffeced..b83a3076a1e3 100644
--- a/sound/soc/intel/skylake/skl-sst-ipc.c
+++ b/sound/soc/intel/skylake/skl-sst-ipc.c
@@ -284,7 +284,8 @@ enum skl_ipc_module_msg {
 	IPC_MOD_BIND = 5,
 	IPC_MOD_UNBIND = 6,
 	IPC_MOD_SET_DX = 7,
-	IPC_MOD_SET_D0IX = 8
+	IPC_MOD_SET_D0IX = 8,
+	IPC_MOD_DELETE_INSTANCE = 11
 };
 
 void skl_ipc_tx_data_copy(struct ipc_message *msg, char *tx_data,
@@ -802,6 +803,33 @@ int skl_ipc_set_dx(struct sst_generic_ipc *ipc, u8 instance_id,
 }
 EXPORT_SYMBOL_GPL(skl_ipc_set_dx);
 
+int skl_ipc_delete_instance(struct sst_generic_ipc *ipc,
+			struct skl_ipc_init_instance_msg *msg)
+{
+	struct skl_ipc_header header = {0};
+	u64 *ipc_header = (u64 *)(&header);
+	int ret;
+
+	header.primary = IPC_MSG_TARGET(IPC_MOD_MSG);
+	header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
+	header.primary |= IPC_GLB_TYPE(IPC_MOD_DELETE_INSTANCE);
+	header.primary |= IPC_MOD_INSTANCE_ID(msg->instance_id);
+	header.primary |= IPC_MOD_ID(msg->module_id);
+
+	dev_dbg(ipc->dev, "In %s primary =%x ext=%x\n", __func__,
+			 header.primary, header.extension);
+	ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL,
+			msg->param_data_size, NULL, 0);
+
+	if (ret < 0) {
+		dev_err(ipc->dev, "ipc: delete instance failed\n");
+		return ret;
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(skl_ipc_delete_instance);
+
 int skl_ipc_init_instance(struct sst_generic_ipc *ipc,
 		struct skl_ipc_init_instance_msg *msg, void *param_data)
 {
diff --git a/sound/soc/intel/skylake/skl-sst-ipc.h b/sound/soc/intel/skylake/skl-sst-ipc.h
index a8de8cfac6ee..eb030dfb88ca 100644
--- a/sound/soc/intel/skylake/skl-sst-ipc.h
+++ b/sound/soc/intel/skylake/skl-sst-ipc.h
@@ -194,6 +194,9 @@ int skl_ipc_restore_pipeline(struct sst_generic_ipc *ipc, u8 instance_id);
 int skl_ipc_init_instance(struct sst_generic_ipc *sst_ipc,
 		struct skl_ipc_init_instance_msg *msg, void *param_data);
 
+int skl_ipc_delete_instance(struct sst_generic_ipc *sst_ipc,
+				struct skl_ipc_init_instance_msg *msg);
+
 int skl_ipc_bind_unbind(struct sst_generic_ipc *sst_ipc,
 		struct skl_ipc_bind_unbind_msg *msg);
 
-- 
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