[PATCH v4 2/9] misc: fastrpc: Add reserved mem support

[Abel Vesa]

The reserved mem support is needed for CMA heap support, which will be
used by AUDIOPD.

Co-developed-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Signed-off-by: Abel Vesa <abel.vesa@xxxxxxxxxx>
---
 drivers/misc/fastrpc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index f80a00e9f508..395036a10e15 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -19,6 +19,7 @@
 #include <linux/slab.h>
 #include <linux/qcom_scm.h>
 #include <uapi/misc/fastrpc.h>
+#include <linux/of_reserved_mem.h>
 
 #define ADSP_DOMAIN_ID (0)
 #define MDSP_DOMAIN_ID (1)
@@ -2068,6 +2069,9 @@ static int fastrpc_rpmsg_probe(struct rpmsg_device *rpdev)
 		return -EINVAL;
 	}
 
+	if (of_reserved_mem_device_init_by_idx(rdev, rdev->of_node, 0))
+		dev_info(rdev, "no reserved DMA memory for FASTRPC\n");
+
 	vmcount = of_property_read_variable_u32_array(rdev->of_node,
 				"qcom,vmids", &vmids[0], 0, FASTRPC_MAX_VMIDS);
 	if (vmcount < 0)
-- 
2.34.1