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| author | David Woodhouse <David.Woodhouse@intel.com> | 2012-10-09 15:03:21 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-10-09 15:04:25 +0100 |
| commit | ffe315012510165ce82e4dd4767f0a5dba9edbf7 (patch) | |
| tree | f601cd980af9d0ced5ca9aedecef4fa0d2ca0e15 /Documentation/devicetree/bindings/spi/spi_pl022.txt | |
| parent | e2d3a35ee427aaba99b6c68a56609ce276c51270 (diff) | |
| parent | 4a8e43feeac7996b8de2d5b2823e316917493df4 (diff) | |
Merge tag 'disintegrate-mtd-20121009' of git://git.infradead.org/users/dhowells/linux-headers
UAPI Disintegration 2012-10-09
Conflicts:
MAINTAINERS
arch/arm/configs/bcmring_defconfig
arch/arm/mach-imx/clk-imx51-imx53.c
drivers/mtd/nand/Kconfig
drivers/mtd/nand/bcm_umi_nand.c
drivers/mtd/nand/nand_bcm_umi.h
drivers/mtd/nand/orion_nand.c
Diffstat (limited to 'Documentation/devicetree/bindings/spi/spi_pl022.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/spi_pl022.txt | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/spi_pl022.txt b/Documentation/devicetree/bindings/spi/spi_pl022.txt index 306ec3ff3c0..f158fd31cfd 100644 --- a/Documentation/devicetree/bindings/spi/spi_pl022.txt +++ b/Documentation/devicetree/bindings/spi/spi_pl022.txt @@ -6,7 +6,29 @@ Required properties: - interrupts : Should contain SPI controller interrupt Optional properties: +- num-cs : total number of chipselects - cs-gpios : should specify GPIOs used for chipselects. The gpios will be referred to as reg = <index> in the SPI child nodes. If unspecified, a single SPI device without a chip select can be used. +- pl022,autosuspend-delay : delay in ms following transfer completion before + the runtime power management system suspends the + device. A setting of 0 indicates no delay and the + device will be suspended immediately +- pl022,rt : indicates the controller should run the message pump with realtime + priority to minimise the transfer latency on the bus (boolean) + + +SPI slave nodes must be children of the SPI master node and can +contain the following properties. + +- pl022,interface : interface type: + 0: SPI + 1: Texas Instruments Synchronous Serial Frame Format + 2: Microwire (Half Duplex) +- pl022,com-mode : polling, interrupt or dma +- pl022,rx-level-trig : Rx FIFO watermark level +- pl022,tx-level-trig : Tx FIFO watermark level +- pl022,ctrl-len : Microwire interface: Control length +- pl022,wait-state : Microwire interface: Wait state +- pl022,duplex : Microwire interface: Full/Half duplex |