diff options
Diffstat (limited to 'Documentation/devicetree/bindings/gpio')
-rw-r--r-- | Documentation/devicetree/bindings/gpio/brcm,bcm63xx-gpio.yaml (renamed from Documentation/devicetree/bindings/gpio/brcm,bcm6345-gpio.yaml) | 18 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio-mmio.yaml | 117 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio-stmpe.txt | 17 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/gpio/ni,169445-nand-gpio.txt | 38 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml | 53 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/gpio/wd,mbl-gpio.txt | 38 |
6 files changed, 172 insertions, 109 deletions
diff --git a/Documentation/devicetree/bindings/gpio/brcm,bcm6345-gpio.yaml b/Documentation/devicetree/bindings/gpio/brcm,bcm63xx-gpio.yaml index 4d69f79df859..62fcc2bd5d80 100644 --- a/Documentation/devicetree/bindings/gpio/brcm,bcm6345-gpio.yaml +++ b/Documentation/devicetree/bindings/gpio/brcm,bcm63xx-gpio.yaml @@ -1,10 +1,10 @@ # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause %YAML 1.2 --- -$id: http://devicetree.org/schemas/gpio/brcm,bcm6345-gpio.yaml# +$id: http://devicetree.org/schemas/gpio/brcm,bcm63xx-gpio.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: Broadcom BCM6345 GPIO controller +title: Broadcom BCM63xx GPIO controller maintainers: - Álvaro Fernández Rojas <noltari@gmail.com> @@ -18,8 +18,6 @@ description: |+ BCM6338 have 8-bit data and dirout registers, where GPIO state can be read and/or written, and the direction changed from input to output. - BCM6345 have 16-bit data and dirout registers, where GPIO state can be read - and/or written, and the direction changed from input to output. BCM6318, BCM6328, BCM6358, BCM6362, BCM6368 and BCM63268 have 32-bit data and dirout registers, where GPIO state can be read and/or written, and the direction changed from input to output. @@ -29,7 +27,6 @@ properties: enum: - brcm,bcm6318-gpio - brcm,bcm6328-gpio - - brcm,bcm6345-gpio - brcm,bcm6358-gpio - brcm,bcm6362-gpio - brcm,bcm6368-gpio @@ -64,17 +61,6 @@ additionalProperties: false examples: - | - gpio@fffe0406 { - compatible = "brcm,bcm6345-gpio"; - reg-names = "dirout", "dat"; - reg = <0xfffe0406 2>, <0xfffe040a 2>; - native-endian; - - gpio-controller; - #gpio-cells = <2>; - }; - - - | gpio@0 { compatible = "brcm,bcm63268-gpio"; reg-names = "dirout", "dat"; diff --git a/Documentation/devicetree/bindings/gpio/gpio-mmio.yaml b/Documentation/devicetree/bindings/gpio/gpio-mmio.yaml new file mode 100644 index 000000000000..b394e058256e --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-mmio.yaml @@ -0,0 +1,117 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/gpio-mmio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Generic MMIO GPIO + +maintainers: + - Linus Walleij <linus.walleij@linaro.org> + - Bartosz Golaszewski <brgl@bgdev.pl> + +description: + Some simple GPIO controllers may consist of a single data register or a pair + of set/clear-bit registers. Such controllers are common for glue logic in + FPGAs or ASICs. Commonly, these controllers are accessed over memory-mapped + NAND-style parallel busses. + +properties: + compatible: + enum: + - brcm,bcm6345-gpio + - ni,169445-nand-gpio + - wd,mbl-gpio # Western Digital MyBook Live memory-mapped GPIO controller + + big-endian: true + + '#gpio-cells': + const: 2 + + gpio-controller: true + + little-endian: true + + reg: + minItems: 1 + description: + A list of registers in the controller. The width of each register is + determined by its size. All registers must have the same width. The number + of GPIOs is set by the width, with bit 0 corresponding to GPIO 0. + items: + - description: + Register to READ the value of the GPIO lines. If GPIO line is high, + the bit will be set. If the GPIO line is low, the bit will be cleared. + This register may also be used to drive GPIOs if the SET register is + omitted. + - description: + Register to SET the value of the GPIO lines. Setting a bit in this + register will drive the GPIO line high. + - description: + Register to CLEAR the value of the GPIO lines. Setting a bit in this + register will drive the GPIO line low. If this register is omitted, + the SET register will be used to clear the GPIO lines as well, by + actively writing the line with 0. + - description: + Register to set the line as OUTPUT. Setting a bit in this register + will turn that line into an output line. Conversely, clearing a bit + will turn that line into an input. + - description: + Register to set this line as INPUT. Setting a bit in this register + will turn that line into an input line. Conversely, clearing a bit + will turn that line into an output. + + reg-names: + minItems: 1 + maxItems: 5 + items: + enum: + - dat + - set + - clr + - dirout + - dirin + + native-endian: true + + no-output: + $ref: /schemas/types.yaml#/definitions/flag + description: + If this property is present, the controller cannot drive the GPIO lines. + +required: + - compatible + - reg + - reg-names + - '#gpio-cells' + - gpio-controller + +additionalProperties: false + +examples: + - | + gpio@1f300010 { + compatible = "ni,169445-nand-gpio"; + reg = <0x1f300010 0x4>; + reg-names = "dat"; + gpio-controller; + #gpio-cells = <2>; + }; + + gpio@e0100000 { + compatible = "wd,mbl-gpio"; + reg-names = "dat"; + reg = <0xe0100000 0x1>; + #gpio-cells = <2>; + gpio-controller; + no-output; + }; + + gpio@fffe0406 { + compatible = "brcm,bcm6345-gpio"; + reg-names = "dirout", "dat"; + reg = <0xfffe0406 2>, <0xfffe040a 2>; + native-endian; + gpio-controller; + #gpio-cells = <2>; + }; diff --git a/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt b/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt deleted file mode 100644 index b33f8f02c0d7..000000000000 --- a/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt +++ /dev/null @@ -1,17 +0,0 @@ -STMPE gpio ----------- - -Required properties: - - compatible: "st,stmpe-gpio" - -Optional properties: - - st,norequest-mask: bitmask specifying which GPIOs should _not_ be requestable - due to different usage (e.g. touch, keypad) - -Node should be child node of stmpe node to which it belongs. - -Example: - stmpe_gpio { - compatible = "st,stmpe-gpio"; - st,norequest-mask = <0x20>; //gpio 5 can't be used - }; diff --git a/Documentation/devicetree/bindings/gpio/ni,169445-nand-gpio.txt b/Documentation/devicetree/bindings/gpio/ni,169445-nand-gpio.txt deleted file mode 100644 index ca2f8c745a27..000000000000 --- a/Documentation/devicetree/bindings/gpio/ni,169445-nand-gpio.txt +++ /dev/null @@ -1,38 +0,0 @@ -Bindings for the National Instruments 169445 GPIO NAND controller - -The 169445 GPIO NAND controller has two memory mapped GPIO registers, one -for input (the ready signal) and one for output (control signals). It is -intended to be used with the GPIO NAND driver. - -Required properties: - - compatible: should be "ni,169445-nand-gpio" - - reg-names: must contain - "dat" - data 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: - - no-output: disables driving output on the pins - -Examples: - gpio1: nand-gpio-out@1f300010 { - compatible = "ni,169445-nand-gpio"; - reg = <0x1f300010 0x4>; - reg-names = "dat"; - gpio-controller; - #gpio-cells = <2>; - }; - - gpio2: nand-gpio-in@1f300014 { - compatible = "ni,169445-nand-gpio"; - reg = <0x1f300014 0x4>; - reg-names = "dat"; - gpio-controller; - #gpio-cells = <2>; - no-output; - }; diff --git a/Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml b/Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml new file mode 100644 index 000000000000..22c0cae73425 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml @@ -0,0 +1,53 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/st,stmpe-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: STMicroelectonics Port Expander (STMPE) GPIO Block + +description: + STMicroelectronics Port Expander (STMPE) is a series of slow + bus controllers for various expanded peripherals such as GPIO, keypad, + touchscreen, ADC, PWM or rotator. It can contain one or several different + peripherals connected to SPI or I2C. These bindings pertain to the + GPIO portions of these expanders. + +maintainers: + - Linus Walleij <linus.walleij@linaro.org> + +properties: + compatible: + const: st,stmpe-gpio + + "#gpio-cells": + const: 2 + + "#interrupt-cells": + const: 2 + + gpio-controller: true + + interrupt-controller: true + + st,norequest-mask: + description: + A bitmask of GPIO lines that cannot be requested because for + for example not being connected to anything on the system + $ref: /schemas/types.yaml#/definitions/uint32 + +patternProperties: + "^.+-hog(-[0-9]+)?$": + type: object + + required: + - gpio-hog + +additionalProperties: false + +required: + - compatible + - "#gpio-cells" + - "#interrupt-cells" + - gpio-controller + - interrupt-controller diff --git a/Documentation/devicetree/bindings/gpio/wd,mbl-gpio.txt b/Documentation/devicetree/bindings/gpio/wd,mbl-gpio.txt deleted file mode 100644 index 038c3a6a1f4d..000000000000 --- a/Documentation/devicetree/bindings/gpio/wd,mbl-gpio.txt +++ /dev/null @@ -1,38 +0,0 @@ -Bindings for the Western Digital's MyBook Live memory-mapped GPIO controllers. - -The Western Digital MyBook Live has two memory-mapped GPIO controllers. -Both GPIO controller only have a single 8-bit data register, where GPIO -state can be read and/or written. - -Required properties: - - compatible: should be "wd,mbl-gpio" - - reg-names: must contain - "dat" - data 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: - - no-output: GPIOs are read-only. - -Examples: - gpio0: gpio0@e0000000 { - compatible = "wd,mbl-gpio"; - reg-names = "dat"; - reg = <0xe0000000 0x1>; - #gpio-cells = <2>; - gpio-controller; - }; - - gpio1: gpio1@e0100000 { - compatible = "wd,mbl-gpio"; - reg-names = "dat"; - reg = <0xe0100000 0x1>; - #gpio-cells = <2>; - gpio-controller; - no-output; - }; |