From: David S. Miller <davem@sunset.davemloft.net>
Date: Thu, 22 Jun 2006 06:07:29 +0000 (-0700)
Subject: [SPARC64]: Add of_getintprop_default().
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6d307724cb6a6b8466cad4fdf13d8a409bc2433f;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[SPARC64]: Add of_getintprop_default().

This encodes a common idiomatic coding pattern used when
dealing with integer properties.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c
index fd46e94ce06b..0a32b1064dfb 100644
--- a/arch/sparc64/kernel/prom.c
+++ b/arch/sparc64/kernel/prom.c
@@ -104,6 +104,18 @@ struct property *of_find_property(struct device_node *np, const char *name,
 	return pp;
 }
 
+int of_getintprop_default(struct device_node *np, const char *name, int def)
+{
+	struct property *prop;
+	int len;
+
+	prop = of_find_property(np, name, &len);
+	if (!prop || len != 4)
+		return def;
+
+	return *(int *) prop->value;
+}
+
 static unsigned int prom_early_allocated;
 
 static void * __init prom_early_alloc(unsigned long size)
diff --git a/include/asm-sparc64/prom.h b/include/asm-sparc64/prom.h
index eb75d3cbcf4c..d0187b3a0ec3 100644
--- a/include/asm-sparc64/prom.h
+++ b/include/asm-sparc64/prom.h
@@ -82,6 +82,9 @@ extern struct device_node *of_get_next_child(const struct device_node *node,
 extern struct property *of_find_property(struct device_node *np,
 					 const char *name,
 					 int *lenp);
+extern int of_getintprop_default(struct device_node *np,
+				 const char *name,
+				 int def);
 
 extern void prom_build_devicetree(void);