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Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1texIQ-0000000Fdvm-2E0N; Mon, 03 Feb 2025 14:19:30 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1texGk-0000000Fdbj-2BtR for linux-phy@lists.infradead.org; Mon, 03 Feb 2025 14:17:47 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 226E65C4CED; Mon, 3 Feb 2025 14:17:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1B523C4CED2; Mon, 3 Feb 2025 14:17:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1738592265; bh=WEMJmTtnA4mpvCmOd4uLa3P4g//2FnQ5h6vgLeQzscc=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=fUMN8pLjQexgBOamrlL300s+V4jdD/p/f/0d6XyGN3qf4NwvxsOP14zt7/Qg41JXd zcXpwMjN/TxE5tkMfz6F8N2gvXKSvxQMGgMQ7z1H65HDBBUK4UGKN2XYTyrXGVXJ3o sIB0Hi1JacMWEJKyUVZrcLiaMR2btWvQ5G8DgFJ3GQ1xoID9yLGVBL7lzaA6cHOIX9 9l2OeA4yzAQz2oDRnbFSd13D4IDn76a5IJmVnE7lnnJj1NKyQ1GRcHQUxpoTgKZZEu yxQO69OTV8LC7cmG9lKJSJgdHYMg7OV3jaMDsSUC58kid6qYqOoGMJqbGz+dg6NS5S CmGFWR/9J4asQ== Message-ID: <17b3c33c-d277-4a28-b6c8-4852d373b450@kernel.org> Date: Mon, 3 Feb 2025 15:17:38 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/6] dt-bindings: phy: qcom,qmp-pcie: Drop reset number constraints To: Konrad Dybcio , Konrad Dybcio Cc: Vinod Koul , Kishon Vijay Abraham I , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Marijn Suijten , linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250125-topic-x1p4_dts-v1-0-02659a08b044@oss.qualcomm.com> <20250125-topic-x1p4_dts-v1-2-02659a08b044@oss.qualcomm.com> <20250127-hungry-bald-groundhog-4f7d4b@krzk-bin> <96c4af07-6adb-470a-8cbf-784bb544ff76@oss.qualcomm.com> <0ec25b21-9a1d-4c4a-ae52-6bd1c3018f4c@kernel.org> <3ee057ab-927c-4eac-a933-a14a5849d66c@oss.qualcomm.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org On 03/02/2025 14:03, Konrad Dybcio wrote: > On 2.02.2025 3:35 PM, Krzysztof Kozlowski wrote: >> On 01/02/2025 16:56, Konrad Dybcio wrote: >>> On 27.01.2025 9:26 AM, Krzysztof Kozlowski wrote: >>>> On Sat, Jan 25, 2025 at 04:31:18AM +0100, Konrad Dybcio wrote: >>>>> From: Konrad Dybcio >>>>> >>>>> (Almost?) all QMP PHYs come with both a "full reset" ("phy") and a >>>>> "retain certain registers" one ("phy_nocsr"). >>>>> >>>>> Drop the maxItems=1 constraint for resets and reset_names as we go >>>>> ahead and straighten out the DT usage. After that's done (which >>>>> will involve modifying some clock drivers etc.), we may set >>>>> *min*Items to 2, bar some possible exceptions. >>>> >>>> You drop minItems now, so that's a bit confusing. If all devices have >>>> two resets, just change in top-level resets the minItems -> 2 now and >>>> mention that it does not affect the ABI, because Linux will support >>>> missing reset and it describes the hardware more accurately. >>> >>> This will generate a ton of warnings and resolving them may take an >>> additional cycle, as I'd need to get things merged through clk too, >>> so I thought this is a good transitional solution >> >> I still don't understand why existing devices now get 1 reset, while >> previously they had minItems:2. > > Hm, right.. > > Would it make sense to just remove the else: branch? Yes, I guess that's what you want to achieve here. Best regards, Krzysztof -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy