# SPDX-License-Identifier: GPL-2.0 %YAML 1.2 --- $id: http://devicetree.org/schemas/mmc/mmc-pwrseq-simple.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: Simple MMC power sequence provider binding maintainers: - Ulf Hansson description: The purpose of the simple MMC power sequence provider is to supports a set of common properties between various SOC designs. It thus enables us to use the same provider for several SOC designs. properties: compatible: const: mmc-pwrseq-simple reset-gpios: minItems: 1 # Put some limit to avoid false warnings maxItems: 32 description: contains a list of GPIO specifiers. The reset GPIOs are asserted at initialization and prior we start the power up procedure of the card. They will be de-asserted right after the power has been provided to the card. clocks: minItems: 1 description: Handle for the entry in clock-names. clock-names: items: - const: ext_clock description: External clock provided to the card. post-power-on-delay-ms: description: Delay in ms after powering the card and de-asserting the reset-gpios (if any). power-off-delay-us: description: Delay in us after asserting the reset-gpios (if any) during power off of the card. required: - compatible additionalProperties: false examples: - | #include sdhci0_pwrseq { compatible = "mmc-pwrseq-simple"; reset-gpios = <&gpio1 12 GPIO_ACTIVE_LOW>; clocks = <&clk_32768_ck>; clock-names = "ext_clock"; }; ...