Commit 0f7b1d1a authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Bartosz Golaszewski
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dt-bindings: gpio: samsung: drop unused bindings 



The commit 6c56c6cd ("gpio: samsung: Drop support for Exynos SoCs")
removed support for the Samsung Exynos SoC in lrgacy GPIO driver, since
it was moved to new pinctrl driver.  Remove old, unused bindings.

Signed-off-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: default avatarBartosz Golaszewski <brgl@bgdev.pl>
parent 01d130a3

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

deleted100644 → 0
+0 −41
Original line number Diff line number Diff line 
Samsung Exynos4 GPIO Controller



Required properties:

- compatible: Compatible property value should be "samsung,exynos4-gpio>".



- reg: Physical base address of the controller and length of memory mapped

  region.



- #gpio-cells: Should be 4. The syntax of the gpio specifier used by client nodes

  should be the following with values derived from the SoC user manual.

     <[phandle of the gpio controller node]

      [pin number within the gpio controller]

      [mux function]

      [flags and pull up/down]

      [drive strength]>



  Values for gpio specifier:

  - Pin number: is a value between 0 to 7.

  - Flags and Pull Up/Down: 0 - Pull Up/Down Disabled.

                            1 - Pull Down Enabled.

                            3 - Pull Up Enabled.

          Bit 16 (0x00010000) - Input is active low.

  - Drive Strength: 0 - 1x,

                    1 - 3x,

                    2 - 2x,

                    3 - 4x



- gpio-controller: Specifies that the node is a gpio controller.

- #address-cells: should be 1.

- #size-cells: should be 1.



Example:



	gpa0: gpio-controller@11400000 {

		#address-cells = <1>;

		#size-cells = <1>;

		compatible = "samsung,exynos4-gpio";

		reg = <0x11400000 0x20>;

		#gpio-cells = <4>;

		gpio-controller;

	};