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([2400:4050:c3e1:100:7ab1:199:d138:f054]) by smtp.gmail.com with ESMTPSA id mg11-20020a17090b370b00b002609cadc56esm5278319pjb.11.2023.10.01.19.17.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 01 Oct 2023 19:17:29 -0700 (PDT) From: AKASHI Takahiro To: sudeep.holla@arm.com, cristian.marussi@arm.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, linus.walleij@linaro.org Cc: Oleksii_Moisieiev@epam.com, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, AKASHI Takahiro Subject: [RFC 4/4] dt-bindings: gpio: Add bindings for SCMI pinctrl based gpio Date: Mon, 2 Oct 2023 11:16:02 +0900 Message-Id: <20231002021602.260100-5-takahiro.akashi@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231002021602.260100-1-takahiro.akashi@linaro.org> References: <20231002021602.260100-1-takahiro.akashi@linaro.org> MIME-Version: 1.0 X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (agentk.vger.email [0.0.0.0]); Sun, 01 Oct 2023 19:17:53 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1778612628558000011 X-GMAIL-MSGID: 1778622719329393735 A dt binding for SCMI pinctrl based gpio driver is defined in this commit. It basically conforms to generic pinctrl-gpio mapping framework. Signed-off-by: AKASHI Takahiro --- .../bindings/gpio/arm,scmi-gpio.yaml | 71 +++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/arm,scmi-gpio.yaml diff --git a/Documentation/devicetree/bindings/gpio/arm,scmi-gpio.yaml b/Documentation/devicetree/bindings/gpio/arm,scmi-gpio.yaml new file mode 100644 index 000000000000..2601c5594567 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/arm,scmi-gpio.yaml @@ -0,0 +1,71 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/arm,scmi-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SCMI pinctrl based generic GPIO controller + +maintainers: + - AKASHI Takahiro + +properties: + $nodename: + pattern: "^scmi_gpio(@[0-9a-f]+)$" + + compatible: + const: arm,scmi-gpio-generic + + gpio-controller: true + + "#gpio-cells": + const: 2 + + gpio-ranges: true + + gpio-ranges-group-names: true + +patternProperties: + "^.+-hog(-[0-9]+)?$": + type: object + properties: + gpio-hog: true + gpios: true + input: true + output-high: true + output-low: true + line-name: true + + required: + - gpio-hog + - gpios + + additionalProperties: false + +required: + - compatible + - gpio-controller + - "#gpio-cells" + - gpio-ranges + +additionalProperties: false + +examples: + - | + #include + + scmi_gpio_0: scmi_gpio@0 { + compatible = "arm,scmi-gpio"; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&scmi_pinctrl 0 10 5>, + <&scmi_pinctrl 5 0 0>; + gpio-ranges-group-names = "", + "pinmux_gpio"; + }; + + // Consumer: + sdhci0_pwrseq { + compatible = "mmc-pwrseq-emmc"; + reset-gpios = <&scmi_gpio_0 0 GPIO_ACTIVE_LOW>; + };