Add a clock implementation, TI SCI clock, that will hook to the common
clock framework, and allow each clock to be controlled via TI SCI
protocol.

Signed-off-by: Tero Kristo <redacted>
Tested-by: Dave Gerlach <redacted>
Signed-off-by: Nishanth Menon <nm@ti.com>
---
 .../devicetree/bindings/clock/ti,sci-clk.txt       | 51 ++++++++++++++++++++++
 MAINTAINERS                                        |  1 +
 2 files changed, 52 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/ti,sci-clk.txt

diff --git a/Documentation/devicetree/bindings/clock/ti,sci-clk.txt b/Documentation/devicetree/bindings/clock/ti,sci-clk.txt
new file mode 100644
index 0000000..231cb80
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti,sci-clk.txt

@@ -0,0 +1,51 @@
+Texas Instruments TI-SCI Clocks
+===============================
+
+All clocks on Texas Instruments' SoCs that contain a System Controller,
+are only controlled by this entity. Communication between a host processor
+running an OS and the System Controller happens through a protocol known
+as TI-SCI[1]. This clock implementation plugs into the common clock
+framework and makes use of the TI-SCI protocol on clock API requests.
+
+[1] Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
+
+Required properties:
+-------------------
+- compatible: Must be "ti,sci-clk"
+- #clock-cells: Shall be 2.
+  In clock consumers, this cell represents the device ID and clock ID
+  exposed by the PM firmware. The assignments can be found in the header
+  files <dt-bindings/genpd/<soc>.h> (which covers the device IDs) and
+  <dt-bindings/clock/<soc>.h> (which covers the clock IDs), where <soc>
+  is the SoC involved, for example 'k2g'.
+- ti,sci: Phandle to the TI SCI device to use for managing the clocks
+
+Optional properties:
+-------------------
+- ti,ssc-clocks: Array of phandle clocks that shall enable spread spectrum
+		 clocking while enabled
+- ti,allow-freq-change-clocks: Array of phandle clocks that shall allow
+			       dynamic clock frequency changes by firmware
+- ti,input-term-clocks: Array of phandle clocks that shall enable input
+			termination