From patchwork Wed Apr 27 11:25:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andre Przywara X-Patchwork-Id: 12828668 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AEC1CC433EF for ; Wed, 27 Apr 2022 11:27:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=De1mxvopKhFq0vmoh8IzdB4p/QOLEaejlykN75PIZV8=; b=g+koZn8wdkXDFm F9Xs4lm13htv/e0R/vAOJ+1J3NGh4tOt4ZqzkfSo0T3nDgr+dMZtNat1Q9WngH3ryOflbk4cU7RD+ zO1HGiwd7Gk6rMYEKGqj6sbUw2WJJAF4mVFVLngYer+PB6IWrbij4s6DR87XgMfGarwvLM/4+i3gp qUbjDSGcHeA477V7UqWKDLu3gBVE9dA4PiSEnRKsEbVidg2nDbMzF/d1luX1ebpmPHrDa4Ef5hlN1 txEbvpkmN3N/Os6SOAkKpaf3h4/oYk9oLQAlFualjwpskTJMKCWzRvU/jJIedz6qd9wTJH4t5TYgz AjWQVcpkoTu05hrKEgjg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1njfok-0014gr-4w; Wed, 27 Apr 2022 11:26:46 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1njfnt-0014MT-Ts for linux-arm-kernel@lists.infradead.org; Wed, 27 Apr 2022 11:25:56 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id AD0691474; Wed, 27 Apr 2022 04:25:53 -0700 (PDT) Received: from donnerap.arm.com (donnerap.cambridge.arm.com [10.1.197.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6EE603F5A1; Wed, 27 Apr 2022 04:25:52 -0700 (PDT) From: Andre Przywara To: Rob Herring , Krzysztof Kozlowski Cc: Liviu Dudau , Robin Murphy , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Dmitry Torokhov , linux-input@vger.kernel.org Subject: [PATCH 05/11] dt-bindings: serio: add Arm PL050 DT schema Date: Wed, 27 Apr 2022 12:25:22 +0100 Message-Id: <20220427112528.4097815-6-andre.przywara@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220427112528.4097815-1-andre.przywara@arm.com> References: <20220427112528.4097815-1-andre.przywara@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220427_042554_051843_B888EDE4 X-CRM114-Status: GOOD ( 12.76 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The Arm PL050 "Keyboard/Mouse Interface" is an Arm system IP providing a PS/2 compatible serial interface. Add a simple DT schema binding, based on the TRM[1], the existing DTs and the Linux driver. [1] https://developer.arm.com/documentation/ddi0143/latest Signed-off-by: Andre Przywara --- .../devicetree/bindings/serio/amba-pl050.yaml | 67 +++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 Documentation/devicetree/bindings/serio/amba-pl050.yaml diff --git a/Documentation/devicetree/bindings/serio/amba-pl050.yaml b/Documentation/devicetree/bindings/serio/amba-pl050.yaml new file mode 100644 index 0000000000000..9732a84550098 --- /dev/null +++ b/Documentation/devicetree/bindings/serio/amba-pl050.yaml @@ -0,0 +1,67 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/serio/amba-pl050.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Arm Ltd. PrimeCell PL050 PS/2 Keyboard/Mouse Interface + +maintainers: + - Andre Przywara + +description: + The Arm PrimeCell PS2 Keyboard/Mouse Interface (KMI) is an AMBA compliant + peripheral that can be used to implement a keyboard or mouse interface that + is IBM PS2 or AT compatible. + +# We need a select here so we don't match all nodes with 'arm,primecell' +select: + properties: + compatible: + contains: + const: arm,pl050 + required: + - compatible + +properties: + compatible: + items: + - const: arm,pl050 + - const: arm,primecell + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: KMI reference clock, used to generate the bus timing + - description: APB register access clock + + clock-names: + items: + - const: KMIREFCLK + - const: apb_pclk + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + kmi@70000 { + compatible = "arm,pl050", "arm,primecell"; + reg = <0x070000 0x1000>; + interrupts = <8>; + clocks = <&mb_clk24mhz>, <&soc_smc50mhz>; + clock-names = "KMIREFCLK", "apb_pclk"; + }; + +...