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authorMatt Porter <mporter@konsulko.com>2015-03-04 14:12:58 -0500
committerMark Brown <broonie@kernel.org>2015-03-05 17:07:06 +0000
commit7f43a87e06e2f19892ff3f278e0181cbf9901b15 (patch)
tree649d3a611ce9f27bc710b7cd924f887596cd285a /Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
parentc517d838eb7d07bbe9507871fab3931deccff539 (diff)
downloadlinux-7f43a87e06e2f19892ff3f278e0181cbf9901b15.tar.bz2
spi: fsl-imx-cspi: add explicit compatible strings and required clock properties
The fsl-imx-cspi binding contains language indicating compatible strings to be used that is not valid for all supported parts e.g. Should be "fsl,<soc>-cspi" or "fsl,<soc>-ecspi". Fix this by enumerating the set of valid compatible strings. The binding is also missing the clocks/clock-names properties so document these and the two required ipg and per clocks. Signed-off-by: Matt Porter <mporter@konsulko.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt')
-rw-r--r--Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt12
1 files changed, 11 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
index aad527b357a0..523341a0e113 100644
--- a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
+++ b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
@@ -2,11 +2,21 @@
(CSPI/eCSPI) for i.MX
Required properties:
-- compatible : Should be "fsl,<soc>-cspi" or "fsl,<soc>-ecspi"
+- compatible :
+ - "fsl,imx1-cspi" for SPI compatible with the one integrated on i.MX1
+ - "fsl,imx21-cspi" for SPI compatible with the one integrated on i.MX21
+ - "fsl,imx27-cspi" for SPI compatible with the one integrated on i.MX27
+ - "fsl,imx31-cspi" for SPI compatible with the one integrated on i.MX31
+ - "fsl,imx35-cspi" for SPI compatible with the one integrated on i.MX35
+ - "fsl,imx51-ecspi" for SPI compatible with the one integrated on i.MX51
- reg : Offset and length of the register set for the device
- interrupts : Should contain CSPI/eCSPI interrupt
- fsl,spi-num-chipselects : Contains the number of the chipselect
- cs-gpios : Specifies the gpio pins to be used for chipselects.
+- clocks : Clock specifiers for both ipg and per clocks.
+- clock-names : Clock names should include both "ipg" and "per"
+See the clock consumer binding,
+ Documentation/devicetree/bindings/clock/clock-bindings.txt
- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
Documentation/devicetree/bindings/dma/dma.txt
- dma-names: DMA request names should include "tx" and "rx" if present.