From mboxrd@z Thu Jan 1 00:00:00 1970 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 16467C4345F for ; Thu, 2 May 2024 14:53:56 +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:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ViiHrcXDGLcvh6JNfiV7L/spCQBnNkhzurNPjdtLQeQ=; b=pQ5FymnGMc7dSk 2Px1cEYboMPDXlUNH7z7/tuNMjUJIb6cElZwOE9h026qI3KOJ9/rfadJehcq49hfAqpWEDHaRKksE 7AD+w7GObS0ziZ7ukmSUpYrBE6rGP9mfbT7X0d4Qm31csqnB7Ftv854ipEwpOyQGlPbq9WHrb3FHf KAbdhhUGmrqv/h7PEX/XfOGY/3Mo7jThseldfxfxePJIrS5QHNLaQ1plp71TBHQCC6aeyamln8AnL hcLXxniLWQS5tGxl/Lwcrp3t1ECQfHE4Scvy81su0ivuClYCaBn7mZTWFjEQ+ngxAOMAOhv/X+5b0 kfFplNuOUuPjNNvcxHoA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1s2Xoi-0000000D0aZ-3f8q; Thu, 02 May 2024 14:53:48 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s2Xog-0000000D0Zo-3AwL for linux-riscv@lists.infradead.org; Thu, 02 May 2024 14:53:48 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id B0A4A61B57; Thu, 2 May 2024 14:53:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0F167C113CC; Thu, 2 May 2024 14:53:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1714661624; bh=rJbbTuAZzjxMG+bRiSasrkimovfkjL8WGmjN73xspck=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=LUopLDHJi+VYHbdfaSLa1+8Sp9pPtyhbTbWLUSBVYhaQ89TNFZx2BcpROzbwBJxdN hJQiTDyOaqeSorCOUo1GYkrGipDQfyaNtcnNHJKRbOS1rcagJ1DtpENWjXBvGn+zmY bpE6AZyicxf80K+pYCGUW5kI3qTzc+K2CNcWpcuOOsU6jcUPeMRb0gjkquCskQP+t0 Do6M/4RPsA71UH/J2Ii/GVqxZHzXpn9c5JGwO+vt3XZuLzHRBUz1On/OJNICjSCoJ1 acsOJpbgWsc5LcJgv3dMndwzjosI4MsUhPp1NJM5sBOahj8ctRO7t4VMhaIIhcz9Sp uNAVzo6RJu+Hw== Message-ID: <10671947-f418-4520-a29f-4ce129770e65@kernel.org> Date: Thu, 2 May 2024 16:53:40 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/3] spi: dt-bindings: Add num-cs property for mpfs-spi To: Prajna Rajendra Kumar , Mark Brown Cc: Rob Herring , Krzysztof Kozlowski , linux-riscv@lists.infradead.org, linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Conor Dooley , Daire McNamara , valentina.fernandezalanis@microchip.com References: <20240502143410.12629-1-prajna.rajendrakumar@microchip.com> <20240502143410.12629-3-prajna.rajendrakumar@microchip.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On 02/05/2024 16:34, Prajna Rajendra Kumar wrote: > The PolarFire SoC SPI controller supports multiple chip selects,but in > the MSS, only one CS line is physically wired. To reflect this hardware > limitation in the device tree, the binding enforces that the 'num-cs' > property defaults to 1 and cannot exceed 1 unless additional > chip select lines are explicitly defined using GPIO descriptors. > You marked it as Fix for bug, but I don't understand where the bug is. Do you describe above the issue or the solution? > + - if: > + properties: > + compatible: > + contains: > + const: microchip,mpfs-spi > + not: > + required: > + - cs-gpios I don't understand what you are expressing here. Did you actually validate it that it achieves exactly what you want? > + then: > + properties: > + num-cs: > + default: 1 > + maximum: 1 > + > unevaluatedProperties: false > > examples: Best regards, Krzysztof _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv