bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0438-resource-Add-a-resource_list_first_type-helper.patch b/target/linux/bcm27xx/patches-5.4/950-0438-resource-Add-a-resource_list_first_type-helper.patch
new file mode 100644
index 0000000000..c2c959a3c1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0438-resource-Add-a-resource_list_first_type-helper.patch
@@ -0,0 +1,36 @@
+From dacb1a46835914b8c3862db15726bcc0a68af8f5 Mon Sep 17 00:00:00 2001
+From: Rob Herring <robh@kernel.org>
+Date: Mon, 28 Oct 2019 11:32:32 -0500
+Subject: [PATCH] resource: Add a resource_list_first_type helper
+
+commit 494f8b10d832456a96be4ee7317425f6936cabc8 upstream.
+
+A common pattern is looping over a resource_list just to get a matching
+entry with a specific type. Add resource_list_first_type() helper which
+implements this.
+
+Signed-off-by: Rob Herring <robh@kernel.org>
+Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
+---
+ include/linux/resource_ext.h | 12 ++++++++++++
+ 1 file changed, 12 insertions(+)
+
+--- a/include/linux/resource_ext.h
++++ b/include/linux/resource_ext.h
+@@ -66,4 +66,16 @@ resource_list_destroy_entry(struct resou
+ #define resource_list_for_each_entry_safe(entry, tmp, list)	\
+ 	list_for_each_entry_safe((entry), (tmp), (list), node)
+ 
++static inline struct resource_entry *
++resource_list_first_type(struct list_head *list, unsigned long type)
++{
++	struct resource_entry *entry;
++
++	resource_list_for_each_entry(entry, list) {
++		if (resource_type(entry->res) == type)
++			return entry;
++	}
++	return NULL;
++}
++
+ #endif /* _LINUX_RESOURCE_EXT_H */