diff options
Diffstat (limited to 'dts/Bindings/gpio')
| -rw-r--r-- | dts/Bindings/gpio/gpio-dsp-keystone.txt | 2 | ||||
| -rw-r--r-- | dts/Bindings/gpio/gpio-fan.txt | 40 | ||||
| -rw-r--r-- | dts/Bindings/gpio/gpio-max3191x.txt | 59 | ||||
| -rw-r--r-- | dts/Bindings/gpio/gpio-mcp23s08.txt | 83 | ||||
| -rw-r--r-- | dts/Bindings/gpio/gpio-tz1090-pdc.txt | 2 | ||||
| -rw-r--r-- | dts/Bindings/gpio/gpio-tz1090.txt | 2 | ||||
| -rw-r--r-- | dts/Bindings/gpio/gpio-uniphier.txt | 52 | ||||
| -rw-r--r-- | dts/Bindings/gpio/renesas,gpio-rcar.txt | 2 | ||||
| -rw-r--r-- | dts/Bindings/gpio/snps-dwapb-gpio.txt | 1 |
9 files changed, 117 insertions, 126 deletions
diff --git a/dts/Bindings/gpio/gpio-dsp-keystone.txt b/dts/Bindings/gpio/gpio-dsp-keystone.txt index 6c7e6c7302..0423699d74 100644 --- a/dts/Bindings/gpio/gpio-dsp-keystone.txt +++ b/dts/Bindings/gpio/gpio-dsp-keystone.txt @@ -25,7 +25,7 @@ Please refer to gpio.txt in this directory for details of the common GPIO bindings used by client devices. Example: - dspgpio0: keystone_dsp_gpio@02620240 { + dspgpio0: keystone_dsp_gpio@2620240 { compatible = "ti,keystone-dsp-gpio"; ti,syscon-dev = <&devctrl 0x240>; gpio-controller; diff --git a/dts/Bindings/gpio/gpio-fan.txt b/dts/Bindings/gpio/gpio-fan.txt deleted file mode 100644 index 439a7430fc..0000000000 --- a/dts/Bindings/gpio/gpio-fan.txt +++ /dev/null @@ -1,40 +0,0 @@ -Bindings for fan connected to GPIO lines - -Required properties: -- compatible : "gpio-fan" - -Optional properties: -- gpios: Specifies the pins that map to bits in the control value, - ordered MSB-->LSB. -- gpio-fan,speed-map: A mapping of possible fan RPM speeds and the - control value that should be set to achieve them. This array - must have the RPM values in ascending order. -- alarm-gpios: This pin going active indicates something is wrong with - the fan, and a udev event will be fired. -- cooling-cells: If used as a cooling device, must be <2> - Also see: Documentation/devicetree/bindings/thermal/thermal.txt - min and max states are derived from the speed-map of the fan. - -Note: At least one the "gpios" or "alarm-gpios" properties must be set. - -Examples: - - gpio_fan { - compatible = "gpio-fan"; - gpios = <&gpio1 14 1 - &gpio1 13 1>; - gpio-fan,speed-map = <0 0 - 3000 1 - 6000 2>; - alarm-gpios = <&gpio1 15 1>; - }; - gpio_fan_cool: gpio_fan { - compatible = "gpio-fan"; - gpios = <&gpio2 14 1 - &gpio2 13 1>; - gpio-fan,speed-map = <0 0>, - <3000 1>, - <6000 2>; - alarm-gpios = <&gpio2 15 1>; - #cooling-cells = <2>; /* min followed by max */ - }; diff --git a/dts/Bindings/gpio/gpio-max3191x.txt b/dts/Bindings/gpio/gpio-max3191x.txt new file mode 100644 index 0000000000..b3a6444b8f --- /dev/null +++ b/dts/Bindings/gpio/gpio-max3191x.txt @@ -0,0 +1,59 @@ +GPIO driver for Maxim MAX3191x industrial serializer + +Required properties: + - compatible: Must be one of: + "maxim,max31910" + "maxim,max31911" + "maxim,max31912" + "maxim,max31913" + "maxim,max31953" + "maxim,max31963" + - reg: Chip select number. + - gpio-controller: Marks the device node as a GPIO controller. + - #gpio-cells: Should be two. For consumer use see gpio.txt. + +Optional properties: + - #daisy-chained-devices: + Number of chips in the daisy-chain (default is 1). + - maxim,modesel-gpios: GPIO pins to configure modesel of each chip. + The number of GPIOs must equal "#daisy-chained-devices" + (if each chip is driven by a separate pin) or 1 + (if all chips are wired to the same pin). + - maxim,fault-gpios: GPIO pins to read fault of each chip. + The number of GPIOs must equal "#daisy-chained-devices" + or 1. + - maxim,db0-gpios: GPIO pins to configure debounce of each chip. + The number of GPIOs must equal "#daisy-chained-devices" + or 1. + - maxim,db1-gpios: GPIO pins to configure debounce of each chip. + The number of GPIOs must equal "maxim,db0-gpios". + - maxim,modesel-8bit: Boolean whether the modesel pin of the chips is + pulled high (8-bit mode). Use this if the modesel pin + is hardwired and consequently "maxim,modesel-gpios" + cannot be specified. By default if neither this nor + "maxim,modesel-gpios" is given, the driver assumes + that modesel is pulled low (16-bit mode). + - maxim,ignore-undervoltage: + Boolean whether to ignore undervoltage alarms signaled + by the "maxim,fault-gpios" or by the status byte + (in 16-bit mode). Use this if the chips are powered + through 5VOUT instead of VCC24V, in which case they + will constantly signal undervoltage. + +For other required and optional properties of SPI slave nodes please refer to +../spi/spi-bus.txt. + +Example: + gpio@0 { + compatible = "maxim,max31913"; + reg = <0>; + gpio-controller; + #gpio-cells = <2>; + + maxim,modesel-gpios = <&gpio2 23>; + maxim,fault-gpios = <&gpio2 24 GPIO_ACTIVE_LOW>; + maxim,db0-gpios = <&gpio2 25>; + maxim,db1-gpios = <&gpio2 26>; + + spi-max-frequency = <25000000>; + }; diff --git a/dts/Bindings/gpio/gpio-mcp23s08.txt b/dts/Bindings/gpio/gpio-mcp23s08.txt deleted file mode 100644 index c934106b10..0000000000 --- a/dts/Bindings/gpio/gpio-mcp23s08.txt +++ /dev/null @@ -1,83 +0,0 @@ -Microchip MCP2308/MCP23S08/MCP23017/MCP23S17 driver for -8-/16-bit I/O expander with serial interface (I2C/SPI) - -Required properties: -- compatible : Should be - - "mcp,mcp23s08" (DEPRECATED) for 8 GPIO SPI version - - "mcp,mcp23s17" (DEPRECATED) for 16 GPIO SPI version - - "mcp,mcp23008" (DEPRECATED) for 8 GPIO I2C version or - - "mcp,mcp23017" (DEPRECATED) for 16 GPIO I2C version of the chip - - - "microchip,mcp23s08" for 8 GPIO SPI version - - "microchip,mcp23s17" for 16 GPIO SPI version - - "microchip,mcp23s18" for 16 GPIO SPI version - - "microchip,mcp23008" for 8 GPIO I2C version or - - "microchip,mcp23017" for 16 GPIO I2C version of the chip - NOTE: Do not use the old mcp prefix any more. It is deprecated and will be - removed. -- #gpio-cells : Should be two. - - first cell is the pin number - - second cell is used to specify flags. Flags are currently unused. -- gpio-controller : Marks the device node as a GPIO controller. -- reg : For an address on its bus. I2C uses this a the I2C address of the chip. - SPI uses this to specify the chipselect line which the chip is - connected to. The driver and the SPI variant of the chip support - multiple chips on the same chipselect. Have a look at - microchip,spi-present-mask below. - -Required device specific properties (only for SPI chips): -- mcp,spi-present-mask (DEPRECATED) -- microchip,spi-present-mask : This is a present flag, that makes only sense for SPI - chips - as the name suggests. Multiple SPI chips can share the same - SPI chipselect. Set a bit in bit0-7 in this mask to 1 if there is a - chip connected with the corresponding spi address set. For example if - you have a chip with address 3 connected, you have to set bit3 to 1, - which is 0x08. mcp23s08 chip variant only supports bits 0-3. It is not - possible to mix mcp23s08 and mcp23s17 on the same chipselect. Set at - least one bit to 1 for SPI chips. - NOTE: Do not use the old mcp prefix any more. It is deprecated and will be - removed. -- spi-max-frequency = The maximum frequency this chip is able to handle - -Optional properties: -- #interrupt-cells : Should be two. - - first cell is the pin number - - second cell is used to specify flags. -- interrupt-controller: Marks the device node as a interrupt controller. - -Optional device specific properties: -- microchip,irq-mirror: Sets the mirror flag in the IOCON register. Devices - with two interrupt outputs (these are the devices ending with 17 and - those that have 16 IOs) have two IO banks: IO 0-7 form bank 1 and - IO 8-15 are bank 2. These chips have two different interrupt outputs: - One for bank 1 and another for bank 2. If irq-mirror is set, both - interrupts are generated regardless of the bank that an input change - occurred on. If it is not set, the interrupt are only generated for the - bank they belong to. - On devices with only one interrupt output this property is useless. -- microchip,irq-active-high: Sets the INTPOL flag in the IOCON register. This - configures the IRQ output polarity as active high. - -Example I2C (with interrupt): -gpiom1: gpio@20 { - compatible = "microchip,mcp23017"; - gpio-controller; - #gpio-cells = <2>; - reg = <0x20>; - - interrupt-parent = <&gpio1>; - interrupts = <17 IRQ_TYPE_LEVEL_LOW>; - interrupt-controller; - #interrupt-cells=<2>; - microchip,irq-mirror; -}; - -Example SPI: -gpiom1: gpio@0 { - compatible = "microchip,mcp23s17"; - gpio-controller; - #gpio-cells = <2>; - spi-present-mask = <0x01>; - reg = <0>; - spi-max-frequency = <1000000>; -}; diff --git a/dts/Bindings/gpio/gpio-tz1090-pdc.txt b/dts/Bindings/gpio/gpio-tz1090-pdc.txt index 1fd98ffa8c..528f5ef5a8 100644 --- a/dts/Bindings/gpio/gpio-tz1090-pdc.txt +++ b/dts/Bindings/gpio/gpio-tz1090-pdc.txt @@ -30,7 +30,7 @@ Optional properties: Example: - pdc_gpios: gpio-controller@02006500 { + pdc_gpios: gpio-controller@2006500 { gpio-controller; #gpio-cells = <2>; diff --git a/dts/Bindings/gpio/gpio-tz1090.txt b/dts/Bindings/gpio/gpio-tz1090.txt index 174cdf3091..b05a90e0ab 100644 --- a/dts/Bindings/gpio/gpio-tz1090.txt +++ b/dts/Bindings/gpio/gpio-tz1090.txt @@ -59,7 +59,7 @@ Required properties: Example: - gpios: gpio-controller@02005800 { + gpios: gpio-controller@2005800 { #address-cells = <1>; #size-cells = <0>; compatible = "img,tz1090-gpio"; diff --git a/dts/Bindings/gpio/gpio-uniphier.txt b/dts/Bindings/gpio/gpio-uniphier.txt new file mode 100644 index 0000000000..fed9158dd9 --- /dev/null +++ b/dts/Bindings/gpio/gpio-uniphier.txt @@ -0,0 +1,52 @@ +UniPhier GPIO controller + +Required properties: +- compatible: Should be "socionext,uniphier-gpio". +- reg: Specifies offset and length of the register set for the device. +- gpio-controller: Marks the device node as a GPIO controller. +- #gpio-cells: Should be 2. The first cell is the pin number and the second + cell is used to specify optional parameters. +- interrupt-parent: Specifies the parent interrupt controller. +- interrupt-controller: Marks the device node as an interrupt controller. +- #interrupt-cells: Should be 2. The first cell defines the interrupt number. + The second cell bits[3:0] is used to specify trigger type as follows: + 1 = low-to-high edge triggered + 2 = high-to-low edge triggered + 4 = active high level-sensitive + 8 = active low level-sensitive + Valid combinations are 1, 2, 3, 4, 8. +- ngpios: Specifies the number of GPIO lines. +- gpio-ranges: Mapping to pin controller pins (as described in gpio.txt) +- socionext,interrupt-ranges: Specifies an interrupt number mapping between + this GPIO controller and its interrupt parent, in the form of arbitrary + number of <child-interrupt-base parent-interrupt-base length> triplets. + +Optional properties: +- gpio-ranges-group-names: Used for named gpio ranges (as described in gpio.txt) + +Example: + gpio: gpio@55000000 { + compatible = "socionext,uniphier-gpio"; + reg = <0x55000000 0x200>; + interrupt-parent = <&aidet>; + interrupt-controller; + #interrupt-cells = <2>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl 0 0 0>; + gpio-ranges-group-names = "gpio_range"; + ngpios = <248>; + socionext,interrupt-ranges = <0 48 16>, <16 154 5>, <21 217 3>; + }; + +Consumer Example: + + sdhci0_pwrseq { + compatible = "mmc-pwrseq-emmc"; + reset-gpios = <&gpio UNIPHIER_GPIO_PORT(29, 4) GPIO_ACTIVE_LOW>; + }; + +Please note UNIPHIER_GPIO_PORT(29, 4) represents PORT294 in the SoC document. +Unfortunately, only the one's place is octal in the port numbering. (That is, +PORT 8, 9, 18, 19, 28, 29, ... are missing.) UNIPHIER_GPIO_PORT() is a helper +macro to calculate 29 * 8 + 4. diff --git a/dts/Bindings/gpio/renesas,gpio-rcar.txt b/dts/Bindings/gpio/renesas,gpio-rcar.txt index 51c86f6999..a7ac460ad6 100644 --- a/dts/Bindings/gpio/renesas,gpio-rcar.txt +++ b/dts/Bindings/gpio/renesas,gpio-rcar.txt @@ -14,6 +14,8 @@ Required Properties: - "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-r8a77970": for R8A77970 (R-Car V3M) compatible GPIO controller. + - "renesas,gpio-r8a77995": for R8A77995 (R-Car D3) compatible GPIO controller. - "renesas,rcar-gen1-gpio": for a generic R-Car Gen1 GPIO controller. - "renesas,rcar-gen2-gpio": for a generic R-Car Gen2 or RZ/G1 GPIO controller. - "renesas,rcar-gen3-gpio": for a generic R-Car Gen3 GPIO controller. diff --git a/dts/Bindings/gpio/snps-dwapb-gpio.txt b/dts/Bindings/gpio/snps-dwapb-gpio.txt index 4d6c8cdc85..4a75da7051 100644 --- a/dts/Bindings/gpio/snps-dwapb-gpio.txt +++ b/dts/Bindings/gpio/snps-dwapb-gpio.txt @@ -29,6 +29,7 @@ controller. - interrupts : The interrupt to the parent controller raised when GPIOs generate the interrupts. - snps,nr-gpios : The number of pins in the port, a single cell. +- resets : Reset line for the controller. Example: |