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 A729FCD8CAE for ; Tue, 9 Jun 2026 07:08:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type: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=XwsXjy4TG/aM2U5Nqdm0tLLdMZmOEbkGY8HrxumjzYw=; b=j7qrv7C/3sQJYHHYKMxr/iCnpG /XxpcbS8YRkkgVJIWHAWCDVNoilu8x3P4Shg0rEhn8OnJVPOWnBnG31EnHNbcIB9KdyQkZhJa/ofJ VaksTfnihzkGXvGJ4AgjD7nfzoB0EhFU7HsV7XcbjafCPP74yxUEzYaPFqXZ18GQQEns8gFrH7ndd rqdHBVeWqMeKwUrOEzM92zU1A3kfmqmeAkXppZ8/z4uNcSy4jfV/8DaY5HgtP9KVEiVEKWOeJ5/1r WaRHx4TVTVqLLnPL1zUWHmQ0a+GM986yW55ZR8xIj/YX2kyo3zWyAL5IrZwoE5oSSKYhNPumUfuMT 5JgY8PtA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wWqZx-00000004wRy-2xNH; Tue, 09 Jun 2026 07:08:53 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wWqZv-00000004wRU-2IlW; Tue, 09 Jun 2026 07:08:51 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id B5FCE601DC; Tue, 9 Jun 2026 07:08:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 064701F00893; Tue, 9 Jun 2026 07:08:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1780988930; bh=XwsXjy4TG/aM2U5Nqdm0tLLdMZmOEbkGY8HrxumjzYw=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=A7I9TjErCh8bJA+Sgh+ldlAi1FCBT5rzTJH9aFo9QiPmKOHhCYTy+9KAXb+cQthF/ EW8LhzSH62fo5YMSUAbEm2h20VInMz6gfRXxSNR+fvnB1nQjksSxgNgvtxcNj/1Bmd +A1XAE53zOaVJPTLy1R2hEaMMoSAY17IzOF4Al0fJL4XyhFnd7wd9vxMdSwG0NMPcC p7FvYfGOB59KGhEpiGlnEul+d2X55EJBA+KiTJoAUB6EKwwLszhhOCvAf84yN7DEF5 LIsYclbjcDzalkM2lNZ95L5ZtEAdKDWxvYAP1FRM9Zucb4EB0iCJZuDDPH1Z5DQ8pM NFattSM2R7o+A== Message-ID: <87c9f8cf-1300-4dae-82cd-fe6427649cea@kernel.org> Date: Tue, 9 Jun 2026 09:08:39 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 1/2] dt-bindings: ufs: Document static TX Equalization settings properties To: Can Guo Cc: bvanassche@acm.org, beanhuo@micron.com, peter.wang@mediatek.com, martin.petersen@oracle.com, mani@kernel.org, linux-scsi@vger.kernel.org, Alim Akhtar , Avri Altman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Zhaoming Luo , Ram Kumar Dwivedi , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , open list , "moderated list:ARM/Mediatek SoC support:Keyword:mediatek" , "moderated list:ARM/Mediatek SoC support:Keyword:mediatek" References: <20260529113338.984301-1-can.guo@oss.qualcomm.com> <20260529113338.984301-2-can.guo@oss.qualcomm.com> <20260529-neat-bright-shellfish-eab5e8@quoll> <7d49742a-7602-4f58-8dce-7e02664b783c@oss.qualcomm.com> <64bd6272-6111-4ffa-8a4a-366d0c287693@oss.qualcomm.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: linux-mediatek@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-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On 31/05/2026 06:48, Can Guo wrote: >>>> is the minimal encoding that covers both. >>> Again, why do you need to encode '0'? >> The tuple is still needed because Precoding is configured per >> transmitter-receiver pair, >> so each lane has two independent states: >> - Host_TX -> Device_RX >> - Device_TX -> Host_RX >> A lane-only enabled list cannot represent directional combinations >> like lane0 = >> (on, off) vs (off, on). > How about we split into two properties, something like below? > tx-precode-enable-g6-host-lanes = <0 1> > tx-precode-enable-g6-device-lanes = <1> > > Only listed lanes are enabled; unlisted lanes are disabled by default. > > Are you OK with this approach? Yes, I do prefer this, because we don't have empty entries (<0, 0>, <0, 1> ....). Best regards, Krzysztof