These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 35 insertions, 4 deletions

diff --git a/kernel/drivers/of/base.c b/kernel/drivers/of/base.c
index 5ed97246c..017dd94f1 100644
--- a/kernel/drivers/of/base.c
+++ b/kernel/drivers/of/base.c
@@ -375,10 +375,7 @@ bool __weak arch_find_n_match_cpu_physical_id(struct device_node *cpun,
 					   cpu, thread))
 		return true;
 
-	if (__of_find_n_match_cpu_property(cpun, "reg", cpu, thread))
-		return true;
-
-	return false;
+	return __of_find_n_match_cpu_property(cpun, "reg", cpu, thread);
 }
 
 /**
@@ -2231,6 +2228,40 @@ struct device_node *of_graph_get_next_endpoint(const struct device_node *parent,
 EXPORT_SYMBOL(of_graph_get_next_endpoint);
 
 /**
+ * of_graph_get_endpoint_by_regs() - get endpoint node of specific identifiers
+ * @parent: pointer to the parent device node
+ * @port_reg: identifier (value of reg property) of the parent port node
+ * @reg: identifier (value of reg property) of the endpoint node
+ *
+ * Return: An 'endpoint' node pointer which is identified by reg and at the same
+ * is the child of a port node identified by port_reg. reg and port_reg are
+ * ignored when they are -1.
+ */
+struct device_node *of_graph_get_endpoint_by_regs(
+	const struct device_node *parent, int port_reg, int reg)
+{
+	struct of_endpoint endpoint;
+	struct device_node *node, *prev_node = NULL;
+
+	while (1) {
+		node = of_graph_get_next_endpoint(parent, prev_node);
+		of_node_put(prev_node);
+		if (!node)
+			break;
+
+		of_graph_parse_endpoint(node, &endpoint);
+		if (((port_reg == -1) || (endpoint.port == port_reg)) &&
+			((reg == -1) || (endpoint.id == reg)))
+			return node;
+
+		prev_node = node;
+	}
+
+	return NULL;
+}
+EXPORT_SYMBOL(of_graph_get_endpoint_by_regs);
+
+/**
  * of_graph_get_remote_port_parent() - get remote port's parent node
  * @node: pointer to a local endpoint device_node
  *