Squashed 'dts/upstream/' content from commit aaba2d45dc2a
git-subtree-dir: dts/upstream
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diff --git a/Bindings/mmc/mmc-spi-slot.yaml b/Bindings/mmc/mmc-spi-slot.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/mmc-spi-slot.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MMC/SD/SDIO slot directly connected to a SPI bus
+
+maintainers:
+ - Ulf Hansson <ulf.hansson@linaro.org>
+
+allOf:
+ - $ref: mmc-controller.yaml
+ - $ref: /schemas/spi/spi-peripheral-props.yaml
+
+description: |
+ The extra properties used by an mmc connected via SPI.
+
+properties:
+ compatible:
+ const: mmc-spi-slot
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ voltage-ranges:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description: |
+ Two cells are required, first cell specifies minimum slot voltage (mV),
+ second cell specifies maximum slot voltage (mV).
+ items:
+ - description: |
+ value for minimum slot voltage in mV
+ default: 3200
+ - description: |
+ value for maximum slot voltage in mV
+ default: 3400
+
+ gpios:
+ description: |
+ For historical reasons, this does not follow the generic mmc-controller
+ binding.
+ minItems: 1
+ items:
+ - description: Card-Detect GPIO
+ - description: Write-Protect GPIO
+
+required:
+ - compatible
+ - reg
+ - spi-max-frequency
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ mmc@0 {
+ compatible = "mmc-spi-slot";
+ reg = <0>;
+ gpios = <&gpio 14 GPIO_ACTIVE_LOW>, <&gpio 15 GPIO_ACTIVE_HIGH>;
+ voltage-ranges = <3300 3300>;
+ spi-max-frequency = <50000000>;
+ interrupts = <42>;
+ interrupt-parent = <&PIC>;
+ };
+ };
+
+...