Hi Martin,

Am 25.06.2015 um 12:54 schrieb ker...@martin.sperl.org:
From: Martin Sperl <ker...@martin.sperl.org>

Signed-off-by: Martin Sperl <ker...@martin.sperl.org>
---
  .../bindings/spi/brcm,bcm2835-aux-spi.txt          |   35 ++++++++++++++++++++
  1 file changed, 35 insertions(+)
  create mode 100644 
Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.txt

Changelog:
   V1 -> V2: fixed typo
                added cs-gpios

diff --git a/Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.txt 
b/Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.txt
new file mode 100644
index 0000000..66f52d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.txt
@@ -0,0 +1,35 @@
+Broadcom BCM2835 auxiliar SPI1/2 controller
+
+The BCM2835 contains two forms of SPI master controller, one known simply as
+SPI0, and the other known as the "Universal SPI Master"; part of the
+auxiliary block. This binding applies to the SPI1/2 controller.
+
+Required properties:
+- compatible: Should be "brcm,bcm2835-aux-spi".
+- reg: Should contain register location and length for the spi block
+       as well as for the common aux block control
+- interrupts: Should contain shared interrupt of the aux block
+- clocks: The clock feeding the SPI controller.
+- cs-gpios: the cs-gpios (native cs is NOT supported)

it would be nice to reference to spi-bus.txt here, just like the other bindings does.

- cs-gpios: see spi-bus.txt (native chip-select is NOT supported)

Beside that try to get a feedback from the devicetree maintainers.

Stefan

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