Commit d5adffc4 authored by Kanak Shilledar's avatar Kanak Shilledar Committed by Andi Shyti
Browse files

dt-bindings: i2c: nxp,lpc1788-i2c: convert to dt schema 



Convert the NXP I2C controller for LPC2xxx/178x/18xx/43xx
to newer DT schema. Created DT schema based on the .txt file
which had `compatible`, `reg`, `interrupts`, `clocks`,
`#address-cells` and `#size-cells` as required properties.

Additional changes to the original .txt binding
- added maintainer from the MAINTAINERS file.
- added resets property required by the corresponding DTS files.

Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarKanak Shilledar <kanakshilledar@gmail.com>
Signed-off-by: default avatarAndi Shyti <andi.shyti@kernel.org>
parent 2362c730

Documentation/devicetree/bindings/i2c/i2c-lpc2k.txt

deleted100644 → 0
+0 −33
Original line number Diff line number Diff line 
NXP I2C controller for LPC2xxx/178x/18xx/43xx



Required properties:

 - compatible: must be "nxp,lpc1788-i2c"

 - reg: physical address and length of the device registers

 - interrupts: a single interrupt specifier

 - clocks: clock for the device

 - #address-cells: should be <1>

 - #size-cells: should be <0>



Optional properties:

- clock-frequency: the desired I2C bus clock frequency in Hz; in

  absence of this property the default value is used (100 kHz).



Example:

i2c0: i2c@400a1000 {

	compatible = "nxp,lpc1788-i2c";

	reg = <0x400a1000 0x1000>;

	interrupts = <18>;

	clocks = <&ccu1 CLK_APB1_I2C0>;

	#address-cells = <1>;

	#size-cells = <0>;

};



&i2c0 {

	clock-frequency = <400000>;



	lm75@48 {

		compatible = "nxp,lm75";

		reg = <0x48>;

	};

};

Documentation/devicetree/bindings/i2c/nxp,lpc1788-i2c.yaml

0 → 100644
+54 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause

%YAML 1.2

---

$id: http://devicetree.org/schemas/i2c/nxp,lpc1788-i2c.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: NXP I2C controller for LPC2xxx/178x/18xx/43xx



maintainers:

  - Vladimir Zapolskiy <vz@mleia.com>



allOf:

  - $ref: /schemas/i2c/i2c-controller.yaml#



properties:

  compatible:

    const: nxp,lpc1788-i2c



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  clocks:

    maxItems: 1



  clock-frequency:

    description: the desired I2C bus clock frequency in Hz

    default: 100000



  resets:

    maxItems: 1



required:

  - compatible

  - reg

  - interrupts

  - clocks



unevaluatedProperties: false



examples:

  - |

    #include "dt-bindings/clock/lpc18xx-ccu.h"



    i2c@400a1000 {

        compatible = "nxp,lpc1788-i2c";

        reg = <0x400a1000 0x1000>;

        interrupts = <18>;

        clocks = <&ccu1 CLK_APB1_I2C0>;

        #address-cells = <1>;

        #size-cells = <0>;

    };

MAINTAINERS

+1 −1
Original line number Diff line number Diff line
@@ -2374,7 +2374,7 @@ ARM/LPC18XX ARCHITECTURE 
M:	Vladimir Zapolskiy <vz@mleia.com>

L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)

S:	Maintained

F:	Documentation/devicetree/bindings/i2c/i2c-lpc2k.txt

F:	Documentation/devicetree/bindings/i2c/nxp,lpc1788-i2c.yaml

F:	arch/arm/boot/dts/nxp/lpc/lpc43*

F:	drivers/i2c/busses/i2c-lpc2k.c

F:	drivers/memory/pl172.c