ipq806x: add hwspinlock support

This change cherry-picks the following 3 changes from linux-next:
*fb7737 hwspinlock/core: add device tree support
*19a0f6 hwspinlock: qcom: Add support for Qualcomm HW Mutex block
*bd5717 hwspinlock: qcom: Correct msb in regmap_field

We're also adding a patch to add the hardware spinlock device nodes on
IPQ806x platforms (033-soc-qcom-Add-sfbp-device-to-IPQ806x-dts.patch).

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@46655 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 33 insertions, 0 deletions

diff --git a/target/linux/ipq806x/patches-4.1/033-ARM-qcom-add-SFPB-nodes-to-IPQ806x-dts.patch b/target/linux/ipq806x/patches-4.1/033-ARM-qcom-add-SFPB-nodes-to-IPQ806x-dts.patch
new file mode 100644
index 0000000000..a126d69441
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.1/033-ARM-qcom-add-SFPB-nodes-to-IPQ806x-dts.patch
@@ -0,0 +1,33 @@
+From c7c482da19a5e4ba7101198c21c2434056b0b2da Mon Sep 17 00:00:00 2001
+From: Mathieu Olivari <mathieu@codeaurora.org>
+Date: Thu, 13 Aug 2015 09:45:26 -0700
+Subject: [PATCH 1/3] ARM: qcom: add SFPB nodes to IPQ806x dts
+
+Add one new node to the ipq806x.dtsi file to declare & register the
+hardware spinlock devices. This mechanism is required to be used by
+other drivers such as SMEM.
+
+Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
+---
+ arch/arm/boot/dts/qcom-ipq8064.dtsi | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+--- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
++++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
+@@ -329,5 +329,16 @@
+ 			#reset-cells = <1>;
+ 		};
+ 
++		sfpb_mutex_block: syscon@1200600 {
++			compatible = "syscon";
++			reg = <0x01200600 0x100>;
++		};
+ 	};
++
++	sfpb_mutex: sfpb-mutex {
++		compatible = "qcom,sfpb-mutex";
++		syscon = <&sfpb_mutex_block 4 4>;
++
++		#hwlock-cells = <1>;
++ 	};
+ };