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dt-bindings: spi: Add binding for Faraday FTSSP010

This adds a binding for the Faraday FTSSP010 SSP controller,
a pretty straight-forward syncronous serial port and SPI
controller.

The bindings are submitted separately because the one device
that has this is using it in a "nonstandard way" with regards
to the electronics, and does not make it possible to develop
or test a proper driver. However we want to be able to add
this resource to the device trees and it's not complex.

Signed-off-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20260203-gemini-ssp-bindings-v1-1-6d85c9c72371@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

authored by

Linus Walleij and committed by
Mark Brown 4c9d5379 8ea39d96

+43
+43
Documentation/devicetree/bindings/spi/faraday,ftssp010.yaml
··· 1 + # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2 + %YAML 1.2 3 + --- 4 + $id: http://devicetree.org/schemas/spi/faraday,ftssp010.yaml# 5 + $schema: http://devicetree.org/meta-schemas/core.yaml# 6 + 7 + title: Faraday FTSSP010 SPI Controller 8 + 9 + maintainers: 10 + - Linus Walleij <linusw@kernel.org> 11 + 12 + properties: 13 + compatible: 14 + const: faraday,ftssp010 15 + 16 + interrupts: 17 + maxItems: 1 18 + 19 + reg: 20 + maxItems: 1 21 + 22 + cs-gpios: true 23 + 24 + required: 25 + - compatible 26 + - interrupts 27 + - reg 28 + 29 + allOf: 30 + - $ref: spi-controller.yaml# 31 + 32 + unevaluatedProperties: false 33 + 34 + examples: 35 + - | 36 + #include <dt-bindings/gpio/gpio.h> 37 + spi@4a000000 { 38 + compatible = "faraday,ftssp010"; 39 + #address-cells = <1>; 40 + #size-cells = <0>; 41 + reg = <0x4a000000 0x1000>; 42 + interrupts = <0>; 43 + };