From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0A24E7464; Thu, 8 Aug 2024 07:41:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723102886; cv=none; b=gGK2YselL1Iymhgxpdfr9+oWyvruAx3bY6CR4o+/Fk/Fz6mW8cQnJnI+vBUZO6Tjyiq5/t++gA2ur54948xc+fNTqSbSTbBiUuiJ/m34wJ9P+9Vd2DJetGAzNWmOil67SUO0Q5wcGKLTukGVWi9+3dDg+jgrumamWHHdaqJ5gM4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723102886; c=relaxed/simple; bh=t5N9T8xEia2siECJTMsRWguXbC34r9Rct6OyQFGhP9o=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=iTyPmW9KG1vVYCBUKBUv736xx5VeyQByzoAysfUtJuTbMnLcfCGd3Mlg1uNlLkiV+B9HpObPUJg6vJ5+8Mq01Pk+5NKjgGKux1blmYKAgj50oJpNMouAEMM47l9+CeR2wlWY6I/9FHAJd++fr7XENKRKIeNyxCr1PsPFI9ybuoI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ihRLBV2x; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ihRLBV2x" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CB6D0C32782; Thu, 8 Aug 2024 07:41:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1723102885; bh=t5N9T8xEia2siECJTMsRWguXbC34r9Rct6OyQFGhP9o=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=ihRLBV2xENNc6I36F7U9ysx1gpHzl99qCakbmON5ZGiNh0UPMp3SCOcbypmQxj85E kvjxWexdHLd0JGzbSiBA5k6/A8M+dY687iCczdVJtURHLVtgHJcZuM5D/7pTg39qpC te0yYk/MYaYkX4a7bIZYipzYvuVyjUz8bQVE6ovTO++/oZU2IMeN+6u+ST3RA04eLn gINAJ2TJ2Hrlte7Fm5B+dMtTfAYjjTbjwVOqJwhItRW9Ylr2nCHyDNoTL5o7wGH2RI H1zfdJTMjdXlYKLhPGoufODiIZmpYxt3b8exl+hdgdhPkSZ1/T98fuvkGcxB7O5Ytc Ryh3RLi+jbU8w== Message-ID: <624e1985-7dd2-4abe-a918-78cb43556967@kernel.org> Date: Thu, 8 Aug 2024 09:41:16 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/7] dt-bindings: x86: Add ACPI wakeup mailbox To: Yunhong Jiang Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, rafael@kernel.org, lenb@kernel.org, kirill.shutemov@linux.intel.com, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-acpi@vger.kernel.org References: <20240806221237.1634126-1-yunhong.jiang@linux.intel.com> <20240806221237.1634126-3-yunhong.jiang@linux.intel.com> <20240807165658.GA17382@yjiang5-mobl.amr.corp.intel.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 07/08/2024 18:56, Yunhong Jiang wrote: > On Wed, Aug 07, 2024 at 07:57:43AM +0200, Krzysztof Kozlowski wrote: >> On 07/08/2024 00:12, Yunhong Jiang wrote: >>> Add the binding to use the ACPI wakeup mailbox mechanism to bringup APs. >> >> We do not have bindings for ACPI. I think in the past it was mentioned >> pretty clear - we do not care what ACPI has in the wild. > > Thank you for review. > Can you please give a bit more information on "do not have bindings for ACPI"? > We don't put the ACPI table into the device tree, but reuse some existing ACPI > mailbox mechanism. Is this acceptable for you? I understood that rationale behind this patch is "ACPI" thus that reply. This one sentence in commit msg is not helping. Entire binding description speaks about ACPI, so yeah - I don't care what ACPI does. Provide proper explanation/description of firmware or hardware, then sure. But the patch saying ACPI is doing something, so bindings will be doing the same is for me NAK. Whatever ACPI is doing is never a reason alone to do the same in Devicetree. Best regards, Krzysztof