path: root/Documentation/devicetree/bindings/spi
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authorNaveen Krishna Chatradhi <ch.naveen@samsung.com>2014-07-16 15:19:09 (GMT)
committerMark Brown <broonie@linaro.org>2014-07-17 18:37:50 (GMT)
commit797bf3a204ef5d7e451fe5fbeb61650e1efc7917 (patch)
treed5eaf9b57be23508ba499fe6446556ae280a7031 /Documentation/devicetree/bindings/spi
parent306972cedfdedc662dd8e32a6397d0e29f2ac90e (diff)
spi: s3c64xx: Update binding documentation
Samsung SPI driver now uses the generic SPI "cs-gpios" binding so update the documentation accordingly. Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> [javier.martinez@collabora.co.uk: split changes and improve commit message] Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/spi')
1 files changed, 3 insertions, 5 deletions
diff --git a/Documentation/devicetree/bindings/spi/spi-samsung.txt b/Documentation/devicetree/bindings/spi/spi-samsung.txt
index 86aa061..2d29dac 100644
--- a/Documentation/devicetree/bindings/spi/spi-samsung.txt
+++ b/Documentation/devicetree/bindings/spi/spi-samsung.txt
@@ -42,15 +42,13 @@ Optional Board Specific Properties:
- num-cs: Specifies the number of chip select lines supported. If
not specified, the default number of chip select lines is set to 1.
+- cs-gpios: should specify GPIOs used for chipselects (see spi-bus.txt)
SPI Controller specific data in SPI slave nodes:
- The spi slave nodes should provide the following information which is required
by the spi controller.
- - cs-gpio: A gpio specifier that specifies the gpio line used as
- the slave select line by the spi controller. The format of the gpio
- specifier depends on the gpio controller.
- samsung,spi-feedback-delay: The sampling phase shift to be applied on the
miso line (to account for any lag in the miso line). The following are the
valid values.
@@ -85,6 +83,7 @@ Example:
#size-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&spi0_bus>;
+ cs-gpios = <&gpa2 5 0>;
w25q80bw@0 {
#address-cells = <1>;
@@ -94,7 +93,6 @@ Example:
spi-max-frequency = <10000>;
controller-data {
- cs-gpio = <&gpa2 5 1 0 3>;
samsung,spi-feedback-delay = <0>;

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