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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-10-30 07:20:56 (GMT) |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-10-30 07:20:56 (GMT) |
| commit | 53279f36dccffc26ff536003fd6bb97cc21c3b82 (patch) | |
| tree | 9d16e497c0e4158c7c054c479bd0e9ff0388d7bb /Documentation/devicetree/bindings/spi/spi_pl022.txt | |
| parent | a6e8c0a25377e27958b11b20e1927885ae7c9857 (diff) | |
| parent | 8f0d8163b50e01f398b14bcd4dc039ac5ab18d64 (diff) | |
| download | linux-fsl-qoriq-53279f36dccffc26ff536003fd6bb97cc21c3b82.tar.xz | |
Merge tag 'v3.7-rc3' into next to sync up with recent USB and MFD changes
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 306ec3f..f158fd3 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 |