Merge remote-tracking branch 'gpio/for-next'

5 files changed, 172 insertions, 3 deletions

diff --git a/Documentation/devicetree/bindings/gpio/gpio-palmas.txt b/Documentation/devicetree/bindings/gpio/gpio-palmas.txt
new file mode 100644
index 000000000000..08b5b52a3ae0
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-palmas.txt
@@ -0,0 +1,27 @@
+Palmas GPIO controller bindings
+
+Required properties:
+- compatible:
+  - "ti,palams-gpio" for palma series of the GPIO controller
+  - "ti,tps80036-gpio" for Palma series device TPS80036.
+  - "ti,tps65913-gpio" for palma series device TPS65913.
+  - "ti,tps65914-gpio" for palma series device TPS65914.
+- #gpio-cells : Should be two.
+  - first cell is the gpio pin number
+  - second cell is used to specify the gpio polarity:
+      0 = active high
+      1 = active low
+- gpio-controller : Marks the device node as a GPIO controller.
+
+Note: This gpio node will be sub node of palmas node.
+
+Example:
+	palmas: tps65913@58 {
+		:::::::::::
+		palmas_gpio: palmas_gpio {
+			compatible = "ti,palmas-gpio";
+			gpio-controller;
+			#gpio-cells = <2>;
+		};
+		:::::::::::
+	};
diff --git a/Documentation/devicetree/bindings/gpio/gpio-tz1090-pdc.txt b/Documentation/devicetree/bindings/gpio/gpio-tz1090-pdc.txt
new file mode 100644
index 000000000000..1fd98ffa8cb7
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-tz1090-pdc.txt
@@ -0,0 +1,45 @@
+ImgTec TZ1090 PDC GPIO Controller
+
+Required properties:
+- compatible: Compatible property value should be "img,tz1090-pdc-gpio".
+
+- reg: Physical base address of the controller and length of memory mapped
+  region. This starts at and cover the SOC_GPIO_CONTROL registers.
+
+- gpio-controller: Specifies that the node is a gpio controller.
+
+- #gpio-cells: Should be 2. The syntax of the gpio specifier used by client
+  nodes should have the following values.
+     <[phandle of the gpio controller node]
+      [PDC gpio number]
+      [gpio flags]>
+
+  Values for gpio specifier:
+  - GPIO number: a value in the range 0 to 6.
+  - GPIO flags: bit field of flags, as defined in <dt-bindings/gpio/gpio.h>.
+    Only the following flags are supported:
+      GPIO_ACTIVE_HIGH
+      GPIO_ACTIVE_LOW
+
+Optional properties:
+- gpio-ranges: Mapping to pin controller pins (as described in
+  Documentation/devicetree/bindings/gpio/gpio.txt)
+
+- interrupts: Individual syswake interrupts (other GPIOs cannot interrupt)
+
+
+Example:
+
+	pdc_gpios: gpio-controller@02006500 {
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		compatible = "img,tz1090-pdc-gpio";
+		reg = <0x02006500 0x100>;
+
+		interrupt-parent = <&pdc>;
+		interrupts =	<8  IRQ_TYPE_NONE>,	/* Syswake 0 */
+				<9  IRQ_TYPE_NONE>,	/* Syswake 1 */
+				<10 IRQ_TYPE_NONE>;	/* Syswake 2 */
+		gpio-ranges = <&pdc_pinctrl 0 0 7>;
+	};
diff --git a/Documentation/devicetree/bindings/gpio/gpio-tz1090.txt b/Documentation/devicetree/bindings/gpio/gpio-tz1090.txt
new file mode 100644
index 000000000000..174cdf309170
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-tz1090.txt
@@ -0,0 +1,88 @@
+ImgTec TZ1090 GPIO Controller
+
+Required properties:
+- compatible: Compatible property value should be "img,tz1090-gpio".
+
+- reg: Physical base address of the controller and length of memory mapped
+  region.
+
+- #address-cells: Should be 1 (for bank subnodes)
+
+- #size-cells: Should be 0 (for bank subnodes)
+
+- Each bank of GPIOs should have a subnode to represent it.
+
+  Bank subnode required properties:
+  - reg: Index of bank in the range 0 to 2.
+
+  - gpio-controller: Specifies that the node is a gpio controller.
+
+  - #gpio-cells: Should be 2. The syntax of the gpio specifier used by client
+    nodes should have the following values.
+       <[phandle of the gpio controller node]
+        [gpio number within the gpio bank]
+        [gpio flags]>
+
+    Values for gpio specifier:
+    - GPIO number: a value in the range 0 to 29.
+    - GPIO flags: bit field of flags, as defined in <dt-bindings/gpio/gpio.h>.
+      Only the following flags are supported:
+        GPIO_ACTIVE_HIGH
+        GPIO_ACTIVE_LOW
+
+  Bank subnode optional properties:
+  - gpio-ranges: Mapping to pin controller pins (as described in
+    Documentation/devicetree/bindings/gpio/gpio.txt)
+
+  - interrupts: Interrupt for the entire bank
+
+  - interrupt-controller: Specifies that the node is an interrupt controller
+
+  - #interrupt-cells: Should be 2. The syntax of the interrupt specifier used by
+    client nodes should have the following values.
+       <[phandle of the interurupt controller]
+        [gpio number within the gpio bank]
+        [irq flags]>
+
+    Values for irq specifier:
+    - GPIO number: a value in the range 0 to 29
+    - IRQ flags: value to describe edge and level triggering, as defined in
+      <dt-bindings/interrupt-controller/irq.h>. Only the following flags are
+      supported:
+        IRQ_TYPE_EDGE_RISING
+        IRQ_TYPE_EDGE_FALLING
+        IRQ_TYPE_EDGE_BOTH
+        IRQ_TYPE_LEVEL_HIGH
+        IRQ_TYPE_LEVEL_LOW
+
+
+
+Example:
+
+	gpios: gpio-controller@02005800 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "img,tz1090-gpio";
+		reg = <0x02005800 0x90>;
+
+		/* bank 0 with an interrupt */
+		gpios0: bank@0 {
+			#gpio-cells = <2>;
+			#interrupt-cells = <2>;
+			reg = <0>;
+			interrupts = <13 IRQ_TYPE_LEVEL_HIGH>;
+			gpio-controller;
+			gpio-ranges = <&pinctrl 0 0 30>;
+			interrupt-controller;
+		};
+
+		/* bank 2 without interrupt */
+		gpios2: bank@2 {
+			#gpio-cells = <2>;
+			reg = <2>;
+			gpio-controller;
+			gpio-ranges = <&pinctrl 0 60 30>;
+		};
+	};
+
+
diff --git a/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt b/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt
index 9b3f1d4a88d6..66416261e14d 100644
--- a/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt
+++ b/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt
@@ -10,8 +10,9 @@ Required properties:
   There're three gpio interrupts in arch-pxa, and they're gpio0,
   gpio1 and gpio_mux. There're only one gpio interrupt in arch-mmp,
   gpio_mux.
-- interrupt-name : Should be the name of irq resource. Each interrupt
-  binds its interrupt-name.
+- interrupt-names : Should be the names of irq resources. Each interrupt
+  uses its own interrupt name, so there should be as many interrupt names
+  as referenced interrups.
 - interrupt-controller : Identifies the node as an interrupt controller.
 - #interrupt-cells: Specifies the number of cells needed to encode an
   interrupt source.
@@ -24,7 +25,7 @@ Example:
 		compatible = "marvell,mmp-gpio";
 		reg = <0xd4019000 0x1000>;
 		interrupts = <49>;
-		interrupt-name = "gpio_mux";
+		interrupt-names = "gpio_mux";
 		gpio-controller;
 		#gpio-cells = <1>;
 		interrupt-controller;
diff --git a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
index cb3dc7bcd8e6..8655df9440d5 100644
--- a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
+++ b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
@@ -23,6 +23,10 @@ Required Properties:
 Please refer to gpio.txt in this directory for details of gpio-ranges property
 and the common GPIO bindings used by client devices.
 
+The GPIO controller also acts as an interrupt controller. It uses the default
+two cells specifier as described in Documentation/devicetree/bindings/
+interrupt-controller/interrupts.txt.
+
 Example: R8A7779 (R-Car H1) GPIO controller nodes
 
 	gpio0: gpio@ffc40000 {
@@ -33,6 +37,8 @@ Example: R8A7779 (R-Car H1) GPIO controller nodes
 		#gpio-cells = <2>;
 		gpio-controller;
 		gpio-ranges = <&pfc 0 0 32>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
 	};
 	...
 	gpio6: gpio@ffc46000 {
@@ -43,4 +49,6 @@ Example: R8A7779 (R-Car H1) GPIO controller nodes
 		#gpio-cells = <2>;
 		gpio-controller;
 		gpio-ranges = <&pfc 0 192 9>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
 	};