diff options
Diffstat (limited to 'Documentation')
7 files changed, 191 insertions, 11 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt b/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt index 629d0ef17308..daa30174bcc1 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt +++ b/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt @@ -3,10 +3,17 @@ Microchip MCP2308/MCP23S08/MCP23017/MCP23S17 driver for Required properties: - compatible : Should be - - "mcp,mcp23s08" for 8 GPIO SPI version - - "mcp,mcp23s17" for 16 GPIO SPI version - - "mcp,mcp23008" for 8 GPIO I2C version or - - "mcp,mcp23017" for 16 GPIO I2C version of the chip + - "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,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. @@ -15,10 +22,11 @@ Required properties: 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 - mcp,spi-present-mask below. + microchip,spi-present-mask below. Required device specific properties (only for SPI chips): -- mcp,spi-present-mask : This is a present flag, that makes only sense for SPI +- 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 @@ -26,11 +34,13 @@ Required device specific properties (only for SPI chips): 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 Example I2C: gpiom1: gpio@20 { - compatible = "mcp,mcp23017"; + compatible = "microchip,mcp23017"; gpio-controller; #gpio-cells = <2>; reg = <0x20>; @@ -38,7 +48,7 @@ gpiom1: gpio@20 { Example SPI: gpiom1: gpio@0 { - compatible = "mcp,mcp23s17"; + compatible = "microchip,mcp23s17"; gpio-controller; #gpio-cells = <2>; spi-present-mask = <0x01>; 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>; }; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index b571560ed5f9..2956800f0240 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -38,6 +38,7 @@ linux Linux-specific binding lsi LSI Corp. (LSI Logic) marvell Marvell Technology Group Ltd. maxim Maxim Integrated Products +microchip Microchip Technology Inc. mosaixtech Mosaix Technologies, Inc. national National Semiconductor nintendo Nintendo |