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Commit 797bf3a2 authored by Naveen Krishna Chatradhi's avatar Naveen Krishna Chatradhi Committed by Mark Brown
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spi: s3c64xx: Update binding documentation 



Samsung SPI driver now uses the generic SPI "cs-gpios"
binding so update the documentation accordingly.

Signed-off-by: default avatarNaveen Krishna Chatradhi <ch.naveen@samsung.com>
[javier.martinez@collabora.co.uk: split changes and improve commit message]
Signed-off-by: default avatarJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: default avatarTomasz Figa <t.figa@samsung.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 306972ce

Documentation/devicetree/bindings/spi/spi-samsung.txt

+3 −5
Original line number Diff line number Diff line
@@ -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>;

			};