diff options
Diffstat (limited to 'Bindings/gpio')
| -rw-r--r-- | Bindings/gpio/brcm,bcm6345-gpio.txt | 46 | ||||
| -rw-r--r-- | Bindings/gpio/cirrus,clps711x-mctrl-gpio.txt | 4 | ||||
| -rw-r--r-- | Bindings/gpio/gpio-aspeed.txt | 36 | ||||
| -rw-r--r-- | Bindings/gpio/gpio-axp209.txt | 30 | ||||
| -rw-r--r-- | Bindings/gpio/gpio-clps711x.txt | 4 | ||||
| -rw-r--r-- | Bindings/gpio/gpio-max77620.txt | 25 | ||||
| -rw-r--r-- | Bindings/gpio/gpio-pca953x.txt | 1 | ||||
| -rw-r--r-- | Bindings/gpio/gpio-tpic2810.txt | 16 | ||||
| -rw-r--r-- | Bindings/gpio/gpio-ts4900.txt | 30 | ||||
| -rw-r--r-- | Bindings/gpio/gpio_oxnas.txt | 47 | ||||
| -rw-r--r-- | Bindings/gpio/mrvl-gpio.txt | 29 | ||||
| -rw-r--r-- | Bindings/gpio/renesas,gpio-rcar.txt | 2 |
12 files changed, 241 insertions, 29 deletions
diff --git a/Bindings/gpio/brcm,bcm6345-gpio.txt b/Bindings/gpio/brcm,bcm6345-gpio.txt new file mode 100644 index 000000000000..e7853143fa42 --- /dev/null +++ b/Bindings/gpio/brcm,bcm6345-gpio.txt @@ -0,0 +1,46 @@ +Bindings for the Broadcom's brcm,bcm6345-gpio memory-mapped GPIO controllers. + +These bindings can be used on any BCM63xx SoC. However, BCM6338 and BCM6345 +are the only ones which don't need a pinctrl driver. +BCM6338 have 8-bit data and dirout registers, where GPIO state can be read +and/or written, and the direction changed from input to output. +BCM6345 have 16-bit data and dirout registers, where GPIO state can be read +and/or written, and the direction changed from input to output. + +Required properties: + - compatible: should be "brcm,bcm6345-gpio" + - reg-names: must contain + "dat" - data register + "dirout" - direction (output) register + - reg: address + size pairs describing the GPIO register sets; + order must correspond with the order of entries in reg-names + - #gpio-cells: must be set to 2. The first cell is the pin number and + the 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. + +Optional properties: + - native-endian: use native endian memory. + +Examples: + - BCM6338: + gpio: gpio-controller@fffe0407 { + compatible = "brcm,bcm6345-gpio"; + reg-names = "dirout", "dat"; + reg = <0xfffe0407 1>, <0xfffe040f 1>; + + #gpio-cells = <2>; + gpio-controller; + }; + + - BCM6345: + gpio: gpio-controller@fffe0406 { + compatible = "brcm,bcm6345-gpio"; + reg-names = "dirout", "dat"; + reg = <0xfffe0406 2>, <0xfffe040a 2>; + native-endian; + + #gpio-cells = <2>; + gpio-controller; + }; diff --git a/Bindings/gpio/cirrus,clps711x-mctrl-gpio.txt b/Bindings/gpio/cirrus,clps711x-mctrl-gpio.txt index 94ae9f82dcf8..fd42e7280f72 100644 --- a/Bindings/gpio/cirrus,clps711x-mctrl-gpio.txt +++ b/Bindings/gpio/cirrus,clps711x-mctrl-gpio.txt @@ -1,7 +1,7 @@ * ARM Cirrus Logic CLPS711X SYSFLG1 MCTRL GPIOs Required properties: -- compatible: Should contain "cirrus,clps711x-mctrl-gpio". +- compatible: Should contain "cirrus,ep7209-mctrl-gpio". - gpio-controller: Marks the device node as a gpio controller. - #gpio-cells: Should be two. The first cell is the pin number and the second cell is used to specify the gpio polarity: @@ -11,7 +11,7 @@ Required properties: Example: sysgpio: sysgpio { compatible = "cirrus,ep7312-mctrl-gpio", - "cirrus,clps711x-mctrl-gpio"; + "cirrus,ep7209-mctrl-gpio"; gpio-controller; #gpio-cells = <2>; }; diff --git a/Bindings/gpio/gpio-aspeed.txt b/Bindings/gpio/gpio-aspeed.txt new file mode 100644 index 000000000000..393bb2ed8a77 --- /dev/null +++ b/Bindings/gpio/gpio-aspeed.txt @@ -0,0 +1,36 @@ +Aspeed GPIO controller Device Tree Bindings +------------------------------------------- + +Required properties: +- compatible : Either "aspeed,ast2400-gpio" or "aspeed,ast2500-gpio" + +- #gpio-cells : Should be two + - First cell is the GPIO line number + - Second cell is used to specify optional + parameters (unused) + +- 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 bindings for + details) +- interrupt-controller : Mark the GPIO controller as an interrupt-controller + +Optional properties: + +- interrupt-parent : The parent interrupt controller, optional if inherited + +The gpio 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: + gpio@1e780000 { + #gpio-cells = <2>; + compatible = "aspeed,ast2400-gpio"; + gpio-controller; + interrupts = <20>; + reg = <0x1e780000 0x1000>; + interrupt-controller; + }; diff --git a/Bindings/gpio/gpio-axp209.txt b/Bindings/gpio/gpio-axp209.txt new file mode 100644 index 000000000000..a6611304dd3c --- /dev/null +++ b/Bindings/gpio/gpio-axp209.txt @@ -0,0 +1,30 @@ +AXP209 GPIO controller + +This driver follows the usual GPIO bindings found in +Documentation/devicetree/bindings/gpio/gpio.txt + +Required properties: +- compatible: Should be "x-powers,axp209-gpio" +- #gpio-cells: Should be two. The first cell is the pin number and the + second is the GPIO flags. +- gpio-controller: Marks the device node as a GPIO controller. + +This node must be a subnode of the axp20x PMIC, documented in +Documentation/devicetree/bindings/mfd/axp20x.txt + +Example: + +axp209: pmic@34 { + compatible = "x-powers,axp209"; + reg = <0x34>; + interrupt-parent = <&nmi_intc>; + interrupts = <0 IRQ_TYPE_LEVEL_LOW>; + interrupt-controller; + #interrupt-cells = <1>; + + axp_gpio: gpio { + compatible = "x-powers,axp209-gpio"; + gpio-controller; + #gpio-cells = <2>; + }; +}; diff --git a/Bindings/gpio/gpio-clps711x.txt b/Bindings/gpio/gpio-clps711x.txt index e0d0446a6b78..0a304ad29d81 100644 --- a/Bindings/gpio/gpio-clps711x.txt +++ b/Bindings/gpio/gpio-clps711x.txt @@ -1,7 +1,7 @@ Cirrus Logic CLPS711X GPIO controller Required properties: -- compatible: Should be "cirrus,clps711x-gpio" +- compatible: Should be "cirrus,ep7209-gpio" - reg: Physical base GPIO controller registers location and length. There should be two registers, first is DATA register, the second is DIRECTION. @@ -21,7 +21,7 @@ aliases { }; porta: gpio@80000000 { - compatible = "cirrus,clps711x-gpio"; + compatible = "cirrus,ep7312-gpio","cirrus,ep7209-gpio"; reg = <0x80000000 0x1>, <0x80000040 0x1>; gpio-controller; #gpio-cells = <2>; diff --git a/Bindings/gpio/gpio-max77620.txt b/Bindings/gpio/gpio-max77620.txt new file mode 100644 index 000000000000..410e716fd3d2 --- /dev/null +++ b/Bindings/gpio/gpio-max77620.txt @@ -0,0 +1,25 @@ +GPIO driver for MAX77620 Power management IC from Maxim Semiconductor. + +Device has 8 GPIO pins which can be configured as GPIO as well as the +special IO functions. + +Required properties: +------------------- +- gpio-controller : Marks the device node as a gpio controller. +- #gpio-cells : Should be two. The first cell is the pin number and + the second cell is used to specify the gpio polarity: + 0 = active high + 1 = active low +For more details, please refer generic GPIO DT binding document +<devicetree/bindings/gpio/gpio.txt>. + +Example: +-------- +#include <dt-bindings/mfd/max77620.h> +... +max77620@3c { + compatible = "maxim,max77620"; + + gpio-controller; + #gpio-cells = <2>; +}; diff --git a/Bindings/gpio/gpio-pca953x.txt b/Bindings/gpio/gpio-pca953x.txt index 6b4a98f74be3..08dd15f89ba9 100644 --- a/Bindings/gpio/gpio-pca953x.txt +++ b/Bindings/gpio/gpio-pca953x.txt @@ -21,6 +21,7 @@ Required properties: maxim,max7313 maxim,max7315 ti,pca6107 + ti,pca9536 ti,tca6408 ti,tca6416 ti,tca6424 diff --git a/Bindings/gpio/gpio-tpic2810.txt b/Bindings/gpio/gpio-tpic2810.txt new file mode 100644 index 000000000000..1afc2de7a537 --- /dev/null +++ b/Bindings/gpio/gpio-tpic2810.txt @@ -0,0 +1,16 @@ +TPIC2810 GPIO controller bindings + +Required properties: + - compatible : Should be "ti,tpic2810". + - reg : The I2C address of the device + - gpio-controller : Marks the device node as a GPIO controller. + - #gpio-cells : Should be two. For consumer use see gpio.txt. + +Example: + + gpio@60 { + compatible = "ti,tpic2810"; + reg = <0x60>; + gpio-controller; + #gpio-cells = <2>; + }; diff --git a/Bindings/gpio/gpio-ts4900.txt b/Bindings/gpio/gpio-ts4900.txt new file mode 100644 index 000000000000..3f8e71b1ab2a --- /dev/null +++ b/Bindings/gpio/gpio-ts4900.txt @@ -0,0 +1,30 @@ +* Technologic Systems I2C-FPGA's GPIO controller bindings + +This bindings describes the GPIO controller for Technologic's FPGA core. +TS-4900's FPGA encodes the GPIO state on 3 bits, whereas the TS-7970's FPGA +uses 2 bits: it doesn't use a dedicated input bit. + +Required properties: +- compatible: Should be one of the following + "technologic,ts4900-gpio" + "technologic,ts7970-gpio" +- reg: Physical base address of the controller and length + of memory mapped region. +- #gpio-cells: Should be two. The first cell is the pin number. +- gpio-controller: Marks the device node as a gpio controller. + +Optional property: +- ngpios: Number of GPIOs this controller is instantiated with, + the default is 32. See gpio.txt for more details. + +Example: + +&i2c2 { + gpio8: gpio@28 { + compatible = "technologic,ts4900-gpio"; + reg = <0x28>; + #gpio-cells = <2>; + gpio-controller; + ngpios = <32>; + }; +}; diff --git a/Bindings/gpio/gpio_oxnas.txt b/Bindings/gpio/gpio_oxnas.txt new file mode 100644 index 000000000000..966514744df4 --- /dev/null +++ b/Bindings/gpio/gpio_oxnas.txt @@ -0,0 +1,47 @@ +* Oxford Semiconductor OXNAS SoC GPIO Controller + +Please refer to gpio.txt for generic information regarding GPIO bindings. + +Required properties: + - compatible: "oxsemi,ox810se-gpio" or "oxsemi,ox820-gpio" + - reg: Base address and length for the device. + - interrupts: The port interrupt shared by all pins. + - gpio-controller: Marks the port as GPIO controller. + - #gpio-cells: Two. The first cell is the pin number and + the second cell is used to specify the gpio polarity as defined in + defined in <dt-bindings/gpio/gpio.h>: + 0 = GPIO_ACTIVE_HIGH + 1 = GPIO_ACTIVE_LOW + - interrupt-controller: Marks the device node as an interrupt controller. + - #interrupt-cells: Two. The first cell is the GPIO number and second cell + is used to specify the trigger type as defined in + <dt-bindings/interrupt-controller/irq.h>: + IRQ_TYPE_EDGE_RISING + IRQ_TYPE_EDGE_FALLING + IRQ_TYPE_EDGE_BOTH + - gpio-ranges: Interaction with the PINCTRL subsystem, it also specifies the + gpio base and count, should be in the format of numeric-gpio-range as + specified in the gpio.txt file. + +Example: + +gpio0: gpio@0 { + compatible = "oxsemi,ox810se-gpio"; + reg = <0x000000 0x100000>; + interrupts = <21>; + #gpio-cells = <2>; + gpio-controller; + interrupt-controller; + #interrupt-cells = <2>; + gpio-ranges = <&pinctrl 0 0 32>; +}; + +keys { + ... + + button-esc { + label = "ESC"; + linux,code = <1>; + gpios = <&gpio0 12 0>; + }; +}; diff --git a/Bindings/gpio/mrvl-gpio.txt b/Bindings/gpio/mrvl-gpio.txt index 98d198396956..30fd2201b3d4 100644 --- a/Bindings/gpio/mrvl-gpio.txt +++ b/Bindings/gpio/mrvl-gpio.txt @@ -17,7 +17,9 @@ Required properties: - #interrupt-cells: Specifies the number of cells needed to encode an interrupt source. - gpio-controller : Marks the device node as a gpio controller. -- #gpio-cells : Should be one. It is the pin number. +- #gpio-cells : Should be two. The first cell is the pin number and + the second cell is used to specify flags. See gpio.txt for possible + values. Example for a MMP platform: @@ -27,7 +29,7 @@ Example for a MMP platform: interrupts = <49>; interrupt-names = "gpio_mux"; gpio-controller; - #gpio-cells = <1>; + #gpio-cells = <2>; interrupt-controller; #interrupt-cells = <1>; }; @@ -44,26 +46,3 @@ Example for a PXA3xx platform: interrupt-controller; #interrupt-cells = <0x2>; }; - -* Marvell Orion GPIO Controller - -Required properties: -- compatible : Should be "marvell,orion-gpio" -- reg : Address and length of the register set for controller. -- gpio-controller : So we know this is a gpio controller. -- ngpio : How many gpios this controller has. -- interrupts : Up to 4 Interrupts for the controller. - -Optional properties: -- mask-offset : For SMP Orions, offset for Nth CPU - -Example: - - gpio0: gpio@10100 { - compatible = "marvell,orion-gpio"; - #gpio-cells = <2>; - gpio-controller; - reg = <0x10100 0x40>; - ngpio = <32>; - interrupts = <35>, <36>, <37>, <38>; - }; diff --git a/Bindings/gpio/renesas,gpio-rcar.txt b/Bindings/gpio/renesas,gpio-rcar.txt index f60e2f477e93..7c1ab3b3254f 100644 --- a/Bindings/gpio/renesas,gpio-rcar.txt +++ b/Bindings/gpio/renesas,gpio-rcar.txt @@ -7,9 +7,11 @@ Required Properties: - "renesas,gpio-r8a7779": for R8A7779 (R-Car H1) compatible GPIO controller. - "renesas,gpio-r8a7790": for R8A7790 (R-Car H2) compatible GPIO controller. - "renesas,gpio-r8a7791": for R8A7791 (R-Car M2-W) compatible GPIO controller. + - "renesas,gpio-r8a7792": for R8A7792 (R-Car V2H) compatible GPIO controller. - "renesas,gpio-r8a7793": for R8A7793 (R-Car M2-N) compatible GPIO controller. - "renesas,gpio-r8a7794": for R8A7794 (R-Car E2) compatible GPIO controller. - "renesas,gpio-r8a7795": for R8A7795 (R-Car H3) compatible GPIO controller. + - "renesas,gpio-r8a7796": for R8A7796 (R-Car M3-W) compatible GPIO controller. - "renesas,gpio-rcar": for generic R-Car GPIO controller. - reg: Base address and length of each memory resource used by the GPIO |