dt-bindings: regulator/clock/mfd: Reorganize S2MPS-family bindings

Bindings for Samsung S2M and S5M family PMICs are in mess. They are
spread over different files and subdirectories in a non-consistent way.
The devices and respective drivers for them share a lot in common so
everything could be organized in a more readable way.

Reorganize the S2MPS11/13/14/15 Device Tree bindings to match the
drivers for this family of devices:
 - move mfd/s2mps11.txt to mfd/samsung,sec-core.txt for the main MFD
   driver (common for entire family),
 - split clock block to clock/samsung,s2mps11.txt,
 - split regulator block to regulator/samsung,s2mps11.txt.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Michael Turquette <mturquette@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 49 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/samsung,s2mps11.txt b/Documentation/devicetree/bindings/clock/samsung,s2mps11.txt
new file mode 100644
index 000000000000..2726c1d58a79
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/samsung,s2mps11.txt
@@ -0,0 +1,49 @@
+Binding for Samsung S2M and S5M family clock generator block
+============================================================
+
+This is a part of device tree bindings for S2M and S5M family multi-function
+devices.
+More information can be found in bindings/mfd/sec-core.txt file.
+
+The S2MPS11/13/15 and S5M8767 provide three(AP/CP/BT) buffered 32.768 kHz
+outputs. The S2MPS14 provides two (AP/BT) buffered 32.768 KHz outputs.
+
+To register these as clocks with common clock framework instantiate under
+main device node a sub-node named "clocks".
+
+It uses the common clock binding documented in:
+ - Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+
+Required properties of the "clocks" sub-node:
+ - #clock-cells: should be 1.
+ - compatible: Should be one of: "samsung,s2mps11-clk", "samsung,s2mps13-clk",
+               "samsung,s2mps14-clk", "samsung,s5m8767-clk"
+   The S2MPS15 uses the same compatible as S2MPS13, as both provides similar
+   clocks.
+
+
+Each clock is assigned an identifier and client nodes use this identifier
+to specify the clock which they consume.
+    Clock               ID           Devices
+    ----------------------------------------------------------
+    32KhzAP		0            S2MPS11/13/14/15, S5M8767
+    32KhzCP		1            S2MPS11/13/15, S5M8767
+    32KhzBT		2            S2MPS11/13/14/15, S5M8767
+
+Include dt-bindings/clock/samsung,s2mps11.h file to use preprocessor defines
+in device tree sources.
+
+
+Example:
+
+	s2mps11_pmic@66 {
+		compatible = "samsung,s2mps11-pmic";
+		reg = <0x66>;
+
+		s2m_osc: clocks {
+			compatible = "samsung,s2mps11-clk";
+			#clock-cells = <1>;
+			clock-output-names = "xx", "yy", "zz";
+		};
+	};