Commit 18e63e7e authored by Ezequiel Garcia's avatar Ezequiel Garcia Committed by Luis Henriques

spi: pl022: Specify 'num-cs' property as required in devicetree binding

commit ea6055c4 upstream.

Since commit 39a6ac11 ("spi/pl022: Devicetree support w/o platform data")
the 'num-cs' parameter cannot be passed through platform data when probing
with devicetree. Instead, it's a required devicetree property.

Fix the binding documentation so the property is properly specified.

Fixes: 39a6ac11 ("spi/pl022: Devicetree support w/o platform data")
Signed-off-by: default avatarEzequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Signed-off-by: default avatarLuis Henriques <luis.henriques@canonical.com>
parent 072cb4b1
...@@ -4,9 +4,9 @@ Required properties: ...@@ -4,9 +4,9 @@ Required properties:
- compatible : "arm,pl022", "arm,primecell" - compatible : "arm,pl022", "arm,primecell"
- reg : Offset and length of the register set for the device - reg : Offset and length of the register set for the device
- interrupts : Should contain SPI controller interrupt - interrupts : Should contain SPI controller interrupt
- num-cs : total number of chipselects
Optional properties: Optional properties:
- num-cs : total number of chipselects
- cs-gpios : should specify GPIOs used for chipselects. - cs-gpios : should specify GPIOs used for chipselects.
The gpios will be referred to as reg = <index> in the SPI child nodes. 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. If unspecified, a single SPI device without a chip select can be used.
......
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