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IronPort-SDR: T7ZsJ7NjPsECrHZaUHtWMbrCz3BkZnzVf1m5C3ciL05stp7EQsXGEbLfvZKuK0mWdBSZDpSdUe fnzSk2iU4CV9AE1glv3jDvqPsOl9ZNbGcN2joTwYnH2nW38ASvgVC+9VO8h/b+REF/KNyYQOha sGV+lb+rj1YbHm53H4uAL/54jpdDR4YQfoDTci0Qy7CXfyMnQdlEw/fV4QRNHgP3ksDsS2Q+Ig DP5Xy2nC3zNxVjnNfrYB9NRpAqwmdKhvm/vA6x+A4BvyGUEIRcYf/SDrGXE/v1M1NEwcVzct1y f0g= X-IronPort-AV: E=Sophos;i="5.77,346,1596524400"; d="scan'208";a="89405137" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa4.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 07 Oct 2020 04:12:13 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Wed, 7 Oct 2020 04:11:55 -0700 Received: from soft-dev10.microsemi.net (10.10.115.15) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.1979.3 via Frontend Transport; Wed, 7 Oct 2020 04:11:53 -0700 From: Lars Povlsen To: Linus Walleij , Rob Herring Subject: [PATCH v4 1/3] dt-bindings: pinctrl: Add bindings for pinctrl-mchp-sgpio driver Date: Wed, 7 Oct 2020 13:11:43 +0200 Message-ID: <20201007111145.2306213-2-lars.povlsen@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201007111145.2306213-1-lars.povlsen@microchip.com> References: <20201007111145.2306213-1-lars.povlsen@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201007_071214_604916_F7F1AEDF X-CRM114-Status: GOOD ( 16.84 ) X-Spam-Score: -2.5 (--) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-2.5 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [68.232.154.123 listed in wl.mailspike.net] -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [68.232.154.123 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Alexandre Belloni , linux-kernel@vger.kernel.org, Microchip Linux Driver Support , linux-gpio@vger.kernel.org, Lars Povlsen , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This adds DT bindings for the Microsemi/Microchip SGPIO controller, bindings microchip,sparx5-sgpio, mscc,ocelot-sgpio and mscc,luton-sgpio. Signed-off-by: Lars Povlsen --- .../pinctrl/microchip,sparx5-sgpio.yaml | 140 ++++++++++++++++++ 1 file changed, 140 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/microchip,sparx5-sgpio.yaml -- 2.25.1 diff --git a/Documentation/devicetree/bindings/pinctrl/microchip,sparx5-sgpio.yaml b/Documentation/devicetree/bindings/pinctrl/microchip,sparx5-sgpio.yaml new file mode 100644 index 000000000000..fc41495800ed --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/microchip,sparx5-sgpio.yaml @@ -0,0 +1,140 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/microchip,sparx5-sgpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microsemi/Microchip Serial GPIO controller + +maintainers: + - Lars Povlsen + +description: | + By using a serial interface, the SIO controller significantly extend + the number of available GPIOs with a minimum number of additional + pins on the device. The primary purpose of the SIO controllers is to + connect control signals from SFP modules and to act as an LED + controller. + +properties: + $nodename: + pattern: "^gpio@[0-9a-f]+$" + + compatible: + enum: + - microchip,sparx5-sgpio + - mscc,ocelot-sgpio + - mscc,luton-sgpio + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + microchip,sgpio-port-ranges: + description: This is a sequence of tuples, defining intervals of + enabled ports in the serial input stream. The enabled ports must + match the hardware configuration in order for signals to be + properly written/read to/from the controller holding + registers. Being tuples, then number of arguments must be + even. The tuples mast be ordered (low, high) and are + inclusive. + $ref: /schemas/types.yaml#/definitions/uint32-matrix + items: + items: + - description: | + "low" indicates start bit number of range + minimum: 0 + maximum: 31 + - description: | + "high" indicates end bit number of range + minimum: 0 + maximum: 31 + minItems: 1 + maxItems: 32 + + microchip,sgpio-frequency: + description: The sgpio controller frequency (Hz). This dictates + the serial bitstream speed, which again affects the latency in + getting control signals back and forth between external shift + registers. The speed must be no larger than half the system + clock, and larger than zero. + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 1 + default: 12500000 + +patternProperties: + "^gpio@[0-1]$": + type: object + properties: + compatible: + const: microchip,sparx5-sgpio-bank + + reg: + description: | + The GPIO bank number. "0" is designates the input pin bank, + "1" the output bank. + maxItems: 1 + + gpio-controller: true + + '#gpio-cells': + const: 3 + + ngpios: + minimum: 1 + maximum: 128 + + required: + - compatible + - reg + - gpio-controller + - '#gpio-cells' + - ngpios + + additionalProperties: false + +additionalProperties: false + +required: + - compatible + - reg + - clocks + - microchip,sgpio-port-ranges + - "#address-cells" + - "#size-cells" + +examples: + - | + sgpio2: gpio@1101059c { + #address-cells = <1>; + #size-cells = <0>; + compatible = "microchip,sparx5-sgpio"; + clocks = <&sys_clk>; + pinctrl-0 = <&sgpio2_pins>; + pinctrl-names = "default"; + reg = <0x1101059c 0x100>; + microchip,sgpio-port-ranges = <0 0>, <16 18>, <28 31>; + microchip,sgpio-frequency = <25000000>; + sgpio_in2: gpio@0 { + reg = <0>; + compatible = "microchip,sparx5-sgpio-bank"; + gpio-controller; + #gpio-cells = <3>; + ngpios = <96>; + }; + sgpio_out2: gpio@1 { + compatible = "microchip,sparx5-sgpio-bank"; + reg = <1>; + gpio-controller; + #gpio-cells = <3>; + ngpios = <96>; + }; + };