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Subject[PATCH] spi: pl022: Document property values
Date
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>
---
To: Mark Brown <broonie@kernel.org>
To: Rob Herring <robh+dt@kernel.org>
To: Mark Rutland <mark.rutland@arm.com>
Cc: linux-spi@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
Documentation/devicetree/bindings/spi/spi_pl022.txt | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

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
--
2.12.0
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