On 08/20/2012 04:22 PM, Rob Herring wrote:

quoted

 .../devicetree/bindings/spi/spi_pl022.txt          |   15 +++
 drivers/spi/spi-pl022.c                            |  114 ++++++++++++++++----
 2 files changed, 110 insertions(+), 19 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/spi_pl022.txt b/Documentation/devicetree/bindings/spi/spi_pl022.txt
index 306ec3f..b089ec7 100644
--- a/Documentation/devicetree/bindings/spi/spi_pl022.txt
+++ b/Documentation/devicetree/bindings/spi/spi_pl022.txt

@@ -6,7 +6,22 @@ Required properties:
 - interrupts : Should contain SPI controller interrupt
 
 Optional properties:
+- pl022,num-chipselects : total number of chipselects

We have this for other spi controllers too. Define a generic property.

Currently, we have:

num-cs
ti,spi-num-cs
fsl,spi-num-chipselects
fsl,espi-num-chipselects
(pl022,num-chipselects)

Would "num-cs" be the right one to use?

Thanks,

Roland