From: Rafał Miłecki <rafal@milecki.pl>

This clock is present on cheaper Northstar devices like BCM53573 or
BCM47189 using Corex-A7. This driver uses PMU (Power Management Unit)
to calculate clock rate and allows using it in a generic (clk_*) way.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
V2: Rebase on top of clk-next
    Use ALP as parent clock
    Improve comments
    Switch from ioremap_nocache to ioremap
    Check of_clk_add_provide result for error
---
 .../devicetree/bindings/clock/brcm,ns-ilp.txt      |  26 ++++
 drivers/clk/bcm/Makefile                           |   1 +
 drivers/clk/bcm/clk-ns-ilp.c                       | 147 +++++++++++++++++++++
 3 files changed, 174 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/brcm,ns-ilp.txt
 create mode 100644 drivers/clk/bcm/clk-ns-ilp.c

diff --git a/Documentation/devicetree/bindings/clock/brcm,ns-ilp.txt b/Documentation/devicetree/bindings/clock/brcm,ns-ilp.txt
new file mode 100644
index 0000000..2c862a0
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/brcm,ns-ilp.txt

@@ -0,0 +1,26 @@
+Broadcom Northstar ILP clock
+============================
+
+This binding uses the common clock binding:
+    Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+This binding is used for ILP clock on Broadcom Northstar devices using
+Corex-A7 CPU. ILP clock depends on ALP one and has to be calculated on
+runtime.
+
+Required properties:
+- compatible: "brcm,ns-ilp"
+- reg: iomem address range of PMU (Power Management Unit)