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dt-bindings: nvmem: Convert STM32 ROMEM to json-schema

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

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Benjamin Gaignard 2019-12-19 15:41:15 +01:00 committed by Rob Herring
parent c5a05bd645
commit 6ffdc74215
2 changed files with 46 additions and 31 deletions
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31
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>;
};
...
};

46
Documentation/devicetree/bindings/nvmem/st,stm32-romem.yaml Normal file
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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>;
};
};
...