dt-bindings: Add snapshot for 5.4-rc2

Add the device-tree bindings' snapshot from tmp-abe0ec5a8133 for
5.4-rc2.

Change-Id: I346809db756dd18a509ce440499d98a7fefecd16

bindings/gpio/gpio-aspeed.txt

@@ -2,7 +2,8 @@ Aspeed GPIO controller Device Tree Bindings
 -------------------------------------------
 
 Required properties:
-- compatible		: Either "aspeed,ast2400-gpio" or "aspeed,ast2500-gpio"
+- compatible		: Either "aspeed,ast2400-gpio", "aspeed,ast2500-gpio",
+					or "aspeed,ast2600-gpio".
 
 - #gpio-cells 		: Should be two
 			  - First cell is the GPIO line number
@@ -17,7 +18,9 @@ Required properties:
 
 Optional properties:
 
-- clocks                : A phandle to the clock to use for debounce timings
+- clocks		: A phandle to the clock to use for debounce timings
+- ngpios		: Number of GPIOs controlled by this controller. Should	be set
+				  when there are multiple GPIO controllers on a SoC (ast2600).
 
 The gpio and interrupt properties are further described in their respective
 bindings documentation:

bindings/gpio/gpio-moxtet.txt

@@ -0,0 +1,18 @@
+Turris Mox Moxtet GPIO expander via Moxtet bus
+
+Required properties:
+ - compatible		: Should be "cznic,moxtet-gpio".
+ - gpio-controller	: Marks the device node as a GPIO controller.
+ - #gpio-cells		: Should be two. For consumer use see gpio.txt.
+
+Other properties are required for a Moxtet bus device, please refer to
+Documentation/devicetree/bindings/bus/moxtet.txt.
+
+Example:
+
+	moxtet_sfp: gpio@0 {
+		compatible = "cznic,moxtet-gpio";
+		gpio-controller;
+		#gpio-cells = <2>;
+		reg = <0>;
+	}

bindings/gpio/gpio-mpc8xxx.txt

@@ -4,7 +4,7 @@ Required properties:
 - compatible : Should be "fsl,<soc>-gpio"
   The following <soc>s are known to be supported:
 	mpc5121, mpc5125, mpc8349, mpc8572, mpc8610, pq3, qoriq,
-	ls1021a, ls1043a, ls2080a.
+	ls1021a, ls1043a, ls2080a, ls1028a, ls1088a.
 - reg : Address and length of the register set for the device
 - interrupts : Should be the port interrupt shared by all 32 pins.
 - #gpio-cells : Should be two.  The first cell is the pin number and
@@ -37,3 +37,17 @@ gpio0: gpio@2300000 {
 	interrupt-controller;
 	#interrupt-cells = <2>;
 };
+
+
+Example of gpio-controller node for a ls1028a/ls1088a SoC:
+
+gpio1: gpio@2300000 {
+	compatible = "fsl,ls1028a-gpio", "fsl,ls1088a-gpio", "fsl,qoriq-gpio";
+	reg = <0x0 0x2300000 0x0 0x10000>;
+	interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+	gpio-controller;
+	#gpio-cells = <2>;
+	interrupt-controller;
+	#interrupt-cells = <2>;
+	little-endian;
+};

bindings/gpio/sgpio-aspeed.txt

@@ -0,0 +1,45 @@
+Aspeed SGPIO controller Device Tree Bindings
+--------------------------------------------
+
+This SGPIO controller is for ASPEED AST2500 SoC, it supports up to 80 full
+featured Serial GPIOs. Each of the Serial GPIO pins can be programmed to
+support the following options:
+- Support interrupt option for each input port and various interrupt
+  sensitivity option (level-high, level-low, edge-high, edge-low)
+- Support reset tolerance option for each output port
+- Directly connected to APB bus and its shift clock is from APB bus clock
+  divided by a programmable value.
+- Co-work with external signal-chained TTL components (74LV165/74LV595)
+
+Required properties:
+
+- compatible : Should be one of
+  "aspeed,ast2400-sgpio", "aspeed,ast2500-sgpio"
+- #gpio-cells : Should be 2, see gpio.txt
+- reg : Address and length of the register set for the device
+- gpio-controller : Marks the device node as a GPIO controller
+- interrupts : Interrupt specifier, see interrupt-controller/interrupts.txt
+- interrupt-controller : Mark the GPIO controller as an interrupt-controller
+- ngpios : number of GPIO lines, see gpio.txt
+  (should be multiple of 8, up to 80 pins)
+- clocks : A phandle to the APB clock for SGPM clock division
+- bus-frequency : SGPM CLK frequency
+
+The sgpio and interrupt properties are further described in their respective
+bindings documentation:
+
+- Documentation/devicetree/bindings/gpio/gpio.txt
+- Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+
+  Example:
+	sgpio: sgpio@1e780200 {
+		#gpio-cells = <2>;
+		compatible = "aspeed,ast2500-sgpio";
+		gpio-controller;
+		interrupts = <40>;
+		reg = <0x1e780200 0x0100>;
+		clocks = <&syscon ASPEED_CLK_APB>;
+		interrupt-controller;
+		ngpios = <8>;
+		bus-frequency = <12000000>;
+	};