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 4F076324712; Tue, 11 Nov 2025 13:08:41 +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=1762866522; cv=none; b=SBMAlgv18zf6jX7ux6ExVbHM/+cB/3DJe05kl7BxAmOIKP393CQnEhH9oXaQD2JN/g3x/T6oINak277ql1O9oR+lsTJ3ieH+Vjo9E1KNGVPFoFcWHpW9asxr1+1nLFnmQIvzVP0rP191qm4/0HkVTExaJbu6msCtLmlh5kAID8M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762866522; c=relaxed/simple; bh=Tp3gcQQfBfQNBKzN1UdG/86ORq+6tXRnDDKFCyIy/yo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=teV/O3SQPY2q+ovxgBBW/ytMHn/tgy//sPBK98OQYOtwqwo0REP07r9QbVNl/nqXdCBkLachmV4mDeO6KF7yQgnomgT+5RBz+08dZm7gJl6viNzlZS5bhahSoR+nukoliGKvxv3P1rq304A7PPgZHpcwrwZuOH/AcYSSpmr4Cqg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PdguOn6Y; 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="PdguOn6Y" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 472EEC4CEF5; Tue, 11 Nov 2025 13:08:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762866521; bh=Tp3gcQQfBfQNBKzN1UdG/86ORq+6tXRnDDKFCyIy/yo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=PdguOn6Y7p97pcSKlNYot9c318d1xeoVX3dwqWe1LwmAhshP0bklXid1uKvEInbx8 1YkndRyAxdqAN4NWHZ48ym2kJRChMwL9Y+AFSHEuJBuzcE9vRxDG+VRn4iOBxtsKdh oks49Sr2HlbGukTFbLZlS79tfCraRAcPKYr2dsmZcQ67QfC4nXnEOrm5x8y3pyE1Ia ynPY25osmuzJ/6INIRdQPU5Tnaq3ZpzrxxG2FkjclBgOrIkkPsyO8bMWHRlkEVtM1H M0tpid4lJqOvYmCbAZ1zIUaPsfR9Jd9hLA1xTvu+Ubjkf8Vww3xBVdKv7y1xWMVGCb l16WnzpsTgGzQ== Date: Tue, 11 Nov 2025 14:08:36 +0100 From: Niklas Cassel To: Manivannan Sadhasivam Cc: Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Rob Herring , Bjorn Helgaas , Heiko Stuebner , Shawn Lin , Kever Yang , Simon Xue , Damien Le Moal , Dragan Simic , FUKAUMI Naoki , Diederik de Haas , stable@vger.kernel.org, Manivannan Sadhasivam , linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org Subject: Re: [PATCH v3] PCI: dw-rockchip: Prevent advertising L1 Substates support Message-ID: References: <20251017163252.598812-2-cassel@kernel.org> <176101411705.9573.17573145190800888773.b4-ty@kernel.org> Precedence: bulk X-Mailing-List: stable@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: <176101411705.9573.17573145190800888773.b4-ty@kernel.org> Hello Mani, On Tue, Oct 21, 2025 at 08:05:17AM +0530, Manivannan Sadhasivam wrote: > > On Fri, 17 Oct 2025 18:32:53 +0200, Niklas Cassel wrote: > > The L1 substates support requires additional steps to work, namely: > > -Proper handling of the CLKREQ# sideband signal. (It is mostly handled by > > hardware, but software still needs to set the clkreq fields in the > > PCIE_CLIENT_POWER_CON register to match the hardware implementation.) > > -Program the frequency of the aux clock into the > > DSP_PCIE_PL_AUX_CLK_FREQ_OFF register. (During L1 substates the core_clk > > is turned off and the aux_clk is used instead.) > > > > [...] > > Applied, thanks! > > [1/1] PCI: dw-rockchip: Prevent advertising L1 Substates support > commit: 40331c63e7901a2cc75ce6b5d24d50601efb833d Last update in this thread was "Applied, thanks!" and the patch was applied to pci/controller/dw-rockchip since then it seems to have been demoted to pci/controller/dw-rockchip-pend I'm simply curious, what is the plan for this patch? I know that Shawn was working on a series that adds support for L1ss for this driver, but it seems to have stagnated, so it seems far from certain that it will be ready in time to make it for the v6.19 merge window. Right now, pci/next branch seems to merge pci/controller/dw-rockchip rather than pci/controller/dw-rockchip-pend. If the L1ss does not make it in time, then this patch will not have had any time in linux-next, which might not make Linus happy. Kind regards, Niklas