projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 89054c7b JR |
1 | * NXP SC16IS7xx advanced Universal Asynchronous Receiver-Transmitter (UART) |
| 2 | ||
| 3 | Required properties: | |
| 4 | - compatible: Should be one of the following: | |
| 5 | - "nxp,sc16is740" for NXP SC16IS740, | |
| 6 | - "nxp,sc16is741" for NXP SC16IS741, | |
| 7 | - "nxp,sc16is750" for NXP SC16IS750, | |
| 8 | - "nxp,sc16is752" for NXP SC16IS752, | |
| 9 | - "nxp,sc16is760" for NXP SC16IS760, | |
| 10 | - "nxp,sc16is762" for NXP SC16IS762. | |
| 11 | - reg: I2C address of the SC16IS7xx device. | |
| 12 | - interrupt-parent: The phandle for the interrupt controller that | |
| 13 | services interrupts for this IC. | |
| 14 | - interrupts: Should contain the UART interrupt | |
| 15 | - clocks: Reference to the IC source clock. | |
| 16 | ||
| 17 | Optional properties: | |
| 18 | - gpio-controller: Marks the device node as a GPIO controller. | |
| 19 | - #gpio-cells: Should be two. The first cell is the GPIO number and | |
| 20 | the second cell is used to specify the GPIO polarity: | |
| 21 | 0 = active high, | |
| 22 | 1 = active low. | |
| 23 | ||
| 24 | Example: | |
| 25 | sc16is750: sc16is750@51 { | |
| 26 | compatible = "nxp,sc16is750"; | |
| 27 | reg = <0x51>; | |
| 28 | clocks = <&clk20m>; | |
| 29 | interrupt-parent = <&gpio3>; | |
| 30 | interrupts = <7 IRQ_TYPE_EDGE_FALLING>; | |
| 31 | gpio-controller; | |
| 32 | #gpio-cells = <2>; | |
| 33 | }; |