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dt-bindings: mmc: Convert sdhci-fujitsu to JSON schema

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Convert the Fujitsu SDHCI controller IP binding to DT schema format,
and add resets property as optional to support reset control.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221111081033.3813-2-hayashi.kunihiko@socionext.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Kunihiko Hayashi 2022-11-11 17:10:28 +09:00 committed by Ulf Hansson
parent 4b323f02b6
commit cb7e1e9311
2 changed files with 55 additions and 32 deletions
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55
Documentation/devicetree/bindings/mmc/fujitsu,sdhci-fujitsu.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/mmc/fujitsu,sdhci-fujitsu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Fujitsu SDHCI controller (F_SDH30)
maintainers:
- Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
allOf:
- $ref: mmc-controller.yaml#
properties:
compatible:
const: fujitsu,mb86s70-sdhci-3.0
reg:
maxItems: 1
clocks:
maxItems: 2
clock-names:
items:
- const: iface
- const: core
resets:
maxItems: 1
fujitsu,cmd-dat-delay-select:
type: boolean
description: |
Indicating that this host requires the CMD_DAT_DELAY control to be enabled
unevaluatedProperties: false
required:
- compatible
- reg
- clocks
- clock-names
examples:
- |
sdhci1: mmc@36600000 {
compatible = "fujitsu,mb86s70-sdhci-3.0";
reg = <0x36600000 0x1000>;
bus-width = <4>;
vqmmc-supply = <&vccq_sdhci1>;
clocks = <&clock 2 2 0>, <&clock 2 3 0>;
clock-names = "iface", "core";
};

32
Documentation/devicetree/bindings/mmc/sdhci-fujitsu.txt
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* Fujitsu SDHCI controller
This file documents differences between the core properties in mmc.txt
and the properties used by the sdhci_f_sdh30 driver.
Required properties:
- compatible: "fujitsu,mb86s70-sdhci-3.0"
- clocks: Must contain an entry for each entry in clock-names. It is a
list of phandles and clock-specifier pairs.
See ../clocks/clock-bindings.txt for details.
- clock-names: Should contain the following two entries:
"iface" - clock used for sdhci interface
"core" - core clock for sdhci controller
Optional properties:
- vqmmc-supply: phandle to the regulator device tree node, mentioned
as the VCCQ/VDD_IO supply in the eMMC/SD specs.
- fujitsu,cmd-dat-delay-select: boolean property indicating that this host
requires the CMD_DAT_DELAY control to be enabled.
Example:
sdhci1: mmc@36600000 {
compatible = "fujitsu,mb86s70-sdhci-3.0";
reg = <0 0x36600000 0x1000>;
interrupts = <0 172 0x4>,
<0 173 0x4>;
bus-width = <4>;
vqmmc-supply = <&vccq_sdhci1>;
clocks = <&clock 2 2 0>, <&clock 2 3 0>;
clock-names = "iface", "core";
};