linux-kernel - [PATCH 3.12 110/124] spi: pl022: Specify 'num-cs' property as required in devicetree binding

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Message-Id: <f10739fce23929ca61c70c06283b6316d4e6d952.1438076484.git.jslaby@suse.cz>
Date:	Tue, 28 Jul 2015 11:52:51 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
	Mark Brown <broonie@...nel.org>, Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 110/124] spi: pl022: Specify 'num-cs' property as required in devicetree binding

From: Ezequiel Garcia <ezequiel@...guardiasur.com.ar>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit ea6055c46eda1e19e02209814955e13f334bbe1b upstream.

Since commit 39a6ac11df65 ("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: 39a6ac11df65 ("spi/pl022: Devicetree support w/o platform data")
Signed-off-by: Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 Documentation/devicetree/bindings/spi/spi_pl022.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/spi/spi_pl022.txt b/Documentation/devicetree/bindings/spi/spi_pl022.txt
index 22ed6797216d..4d1673ca8cf8 100644
--- a/Documentation/devicetree/bindings/spi/spi_pl022.txt
+++ b/Documentation/devicetree/bindings/spi/spi_pl022.txt
@@ -4,9 +4,9 @@ Required properties:
 - compatible : "arm,pl022", "arm,primecell"
 - reg : Offset and length of the register set for the device
 - interrupts : Should contain SPI controller interrupt
+- num-cs : total number of chipselects
 
 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.
-- 
2.4.6

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