Commit 6ffdc742 authored by Benjamin Gaignard's avatar Benjamin Gaignard Committed by Rob Herring
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dt-bindings: nvmem: Convert STM32 ROMEM to json-schema 



Convert the STM32 ROMEM binding to DT schema format using json-schema

Signed-off-by: default avatarBenjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent c5a05bd6

Documentation/devicetree/bindings/nvmem/st,stm32-romem.txt

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STMicroelectronics STM32 Factory-programmed data device tree bindings



This represents STM32 Factory-programmed read only non-volatile area: locked

flash, OTP, read-only HW regs... This contains various information such as:

analog calibration data for temperature sensor (e.g. TS_CAL1, TS_CAL2),

internal vref (VREFIN_CAL), unique device ID...



Required properties:

- compatible:		Should be one of:

			"st,stm32f4-otp"

			"st,stm32mp15-bsec"

- reg:			Offset and length of factory-programmed area.

- #address-cells:	Should be '<1>'.

- #size-cells:		Should be '<1>'.



Optional Data cells:

- Must be child nodes as described in nvmem.txt.



Example on stm32f4:

	romem: nvmem@1fff7800 {

		compatible = "st,stm32f4-otp";

		reg = <0x1fff7800 0x400>;

		#address-cells = <1>;

		#size-cells = <1>;



		/* Data cells: ts_cal1 at 0x1fff7a2c */

		ts_cal1: calib@22c {

			reg = <0x22c 0x2>;

		};

		...

	};

Documentation/devicetree/bindings/nvmem/st,stm32-romem.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/nvmem/st,stm32-romem.yaml#

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



title: STMicroelectronics STM32 Factory-programmed data bindings



description: |

  This represents STM32 Factory-programmed read only non-volatile area: locked

  flash, OTP, read-only HW regs... This contains various information such as:

  analog calibration data for temperature sensor (e.g. TS_CAL1, TS_CAL2),

  internal vref (VREFIN_CAL), unique device ID...



maintainers:

  - Fabrice Gasnier <fabrice.gasnier@st.com>



allOf:

  - $ref: "nvmem.yaml#"



properties:

  compatible:

    enum:

      - st,stm32f4-otp

      - st,stm32mp15-bsec



required:

  - "#address-cells"

  - "#size-cells"

  - compatible

  - reg



examples:

  - |

    efuse@1fff7800 {

      compatible = "st,stm32f4-otp";

      reg = <0x1fff7800 0x400>;

      #address-cells = <1>;

      #size-cells = <1>;



      calib@22c {

        reg = <0x22c 0x2>;

      };

    };



...