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 BF54A2EBB89; Tue, 30 Dec 2025 12:43:00 +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=1767098581; cv=none; b=SZQPYexbeNJ1yfUjnUoNqZvJBA2yAKjFahIIdUTo0Q/4+gSmcA0ULKvYDeT4l10uYLQbHfQ8GSK6EybUXT/9KAY31m5N0p0A9YJjm2HcqWQtjzmBYExu/QOukt/jMEcZBHriSyLzJtNXTTxuJJ8qrE00ZiidVvqcTFwMqGIl/0s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767098581; c=relaxed/simple; bh=9PXX8lI83hRACjmN1PJkzCfUsWjkr5sFSHxm5Dksyw8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=lLtduB3SDb5tyrYYPIKkU0u4+cIkYsCWGvZbj8eBgkYe7K65LKvnqF7eFbfXxxgGRqCZKsxJpWzMqTSMbQz9SM4CG/uOC49cvQj4sfBduq59GiPYGoBIMKXejqXdsUk9ARUUHNs3f8wJ3IJSDYmTdQX4fgOfYkPMLG/B6W3Ey1Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=MTuacAkf; 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="MTuacAkf" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0D877C4CEFB; Tue, 30 Dec 2025 12:42:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767098580; bh=9PXX8lI83hRACjmN1PJkzCfUsWjkr5sFSHxm5Dksyw8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=MTuacAkfQ4Qtno4D1F7JJ/E512++/dAsNBFK5VsUYDWO7EbYm413NofwWHheQ67ix BH0WI56WwKWzagF+BlggF8o87iXW7HTOODPGk9wqc0clYVr0jQW2XDk68LlqrQicoO mTzEVk0Q6IuZGH/UA7hE51hsKI3aMG2wlbS2eNimCH1kVReu5YoSNNtfmoK4cKy7uZ 5AFozEgWPnvewd6vliKxDd2x5X3KPx7fHAy99mBHhdIAIi1MSG/5sEx365bUdc2Zgh DhvK3cRJLiuq7OWJrpYV1+0hSG6kPrfOfOme7gfuGiCPATv2ZkKnUpYOO/blVOg/Us 3j+HYdSiUYISg== Date: Tue, 30 Dec 2025 13:42:54 +0100 From: Niklas Cassel To: manivannan.sadhasivam@oss.qualcomm.com Cc: Manivannan Sadhasivam , Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Rob Herring , Bjorn Helgaas , Bartosz Golaszewski , linux-pci@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Chen-Yu Tsai , Brian Norris , Krishna Chaitanya Chundru , Alex Elder , Bartosz Golaszewski Subject: Re: [PATCH v3 6/7] PCI: qcom: Drop the assert_perst() callbacks Message-ID: References: <20251229-pci-pwrctrl-rework-v3-0-c7d5918cd0db@oss.qualcomm.com> <20251229-pci-pwrctrl-rework-v3-6-c7d5918cd0db@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Tue, Dec 30, 2025 at 01:31:50PM +0100, Niklas Cassel wrote: > On Mon, Dec 29, 2025 at 10:56:57PM +0530, Manivannan Sadhasivam via B4 Relay wrote: > > Now when all pwrctrl drivers have been converted to new pwrctrl design, > there is no need for the .assert_perst() callback in the controller drivers, > because with the new design, the actual work by the pwrctrl driver will have > been done before the controller driver enumerates the bus. There is thus no > longer any need for .assert_perst() callbacks in the controller drivers. s/before the controller driver enumerates the bus/before the controller driver asserts + desserts PERST# and starts link training/ Kind regards, Niklas