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| author | Antonio Borneo <borneo.antonio@gmail.com> | 2017-03-20 12:59:59 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-03-20 14:24:25 +0300 |
| commit | 3c85871a8a7f079cd4a24877ac9e0bcc0b1c2e4a (patch) | |
| tree | 8408a91699895793ea53512261b8578a5bcf07d8 /Documentation/devicetree/bindings/spi | |
| parent | e6a72e057fa3e0ad38ec59c4779647a7bd390a37 (diff) | |
| download | linux-3c85871a8a7f079cd4a24877ac9e0bcc0b1c2e4a.tar.xz | |
spi: pl022: Document property values
The property "pl022,com-mode" can only assume one of the values of
the enum ssp_mode, defined in include/linux/amba/pl022.h
List the possible numeric values and report the associated meaning.
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/spi')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/spi_pl022.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/spi/spi_pl022.txt b/Documentation/devicetree/bindings/spi/spi_pl022.txt index 2692a5726c3f..7638b4968ddb 100644 --- a/Documentation/devicetree/bindings/spi/spi_pl022.txt +++ b/Documentation/devicetree/bindings/spi/spi_pl022.txt @@ -30,7 +30,10 @@ contain the following properties. 0: SPI 1: Texas Instruments Synchronous Serial Frame Format 2: Microwire (Half Duplex) -- pl022,com-mode : polling, interrupt or dma +- pl022,com-mode : specifies the transfer mode: + 0: interrupt mode + 1: polling mode (default mode if property not present) + 2: DMA mode - pl022,rx-level-trig : Rx FIFO watermark level - pl022,tx-level-trig : Tx FIFO watermark level - pl022,ctrl-len : Microwire interface: Control length |