remoteproc: qcom_q6v5_mss: Extract mba/mpss from memory-region
In the absence of mba and mpss sub-child extract the mba/mpss regions
from the memory-region property.
Tested-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200421143228.8981-5-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 38d2b21..3a7fcd64 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -1568,8 +1568,17 @@ static int q6v5_alloc_memory_region(struct q6v5 *qproc)
struct resource r;
int ret;
+ /*
+ * In the absence of mba/mpss sub-child, extract the mba and mpss
+ * reserved memory regions from device's memory-region property.
+ */
child = of_get_child_by_name(qproc->dev->of_node, "mba");
- node = of_parse_phandle(child, "memory-region", 0);
+ if (!child)
+ node = of_parse_phandle(qproc->dev->of_node,
+ "memory-region", 0);
+ else
+ node = of_parse_phandle(child, "memory-region", 0);
+
ret = of_address_to_resource(node, 0, &r);
if (ret) {
dev_err(qproc->dev, "unable to resolve mba region\n");
@@ -1586,8 +1595,14 @@ static int q6v5_alloc_memory_region(struct q6v5 *qproc)
return -EBUSY;
}
- child = of_get_child_by_name(qproc->dev->of_node, "mpss");
- node = of_parse_phandle(child, "memory-region", 0);
+ if (!child) {
+ node = of_parse_phandle(qproc->dev->of_node,
+ "memory-region", 1);
+ } else {
+ child = of_get_child_by_name(qproc->dev->of_node, "mpss");
+ node = of_parse_phandle(child, "memory-region", 0);
+ }
+
ret = of_address_to_resource(node, 0, &r);
if (ret) {
dev_err(qproc->dev, "unable to resolve mpss region\n");