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Tue, 23 Sep 2025 13:46:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C1C0DC4CEF5; Tue, 23 Sep 2025 13:46:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758635205; bh=FO1IaZWhYXzPZ1kV2cp8Kfr5N2is+biotDlknM0E+x4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=qxQ7VDKfAzJIYa13xErJ+FpKQkM0PJmDHnphGd9CMCFROVxi8kNFAWh/WESrHULj8 VLgqHBFIBpQXCtb/GASS4fKMOjmBwZRD7wACS7+FLfDx2ytcroOdgLi/XLulEJQ7NA eNLCLXjkrcFO4s0XZFhspPWr/XwYMMrWpNf12Cwy0wyvAWs1hrhZHgSbO1wapC2gpT 4W/lMZbVbEYoyuQoOrhA7kGpyuDXmTm0Ft5mrMqqZvR1kv9x+VF9ILnrRUcYFHInJt uHe+M9HvRIDEV+RyIx9VqgjQDSF4y7mjWkxmTEowB9J7dXKXY2UNJoe3h5D6fiEAoh cpGKGLsVB4rKg== Date: Tue, 23 Sep 2025 15:46:37 +0200 From: Niklas Cassel To: David Bremner Cc: devnull+manivannan.sadhasivam.oss.qualcomm.com@kernel.org, bhelgaas@google.com, heiko@sntech.de, krishna.chundru@oss.qualcomm.com, kwilczynski@kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-rockchip@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, lpieralisi@kernel.org, lukas@wunner.de, mahesh@linux.ibm.com, mani@kernel.org, manivannan.sadhasivam@oss.qualcomm.com, oohall@gmail.com, p.zabel@pengutronix.de, robh@kernel.org, wilfred.mallawa@wdc.com, will@kernel.org Subject: Re: [PATCH v6 0/4] PCI: Add support for resetting the Root Ports in a platform specific way Message-ID: References: <20250715-pci-port-reset-v6-0-6f9cce94e7bb@oss.qualcomm.com> <87ldm548u2.fsf@tethera.net> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87ldm548u2.fsf@tethera.net> Hello David, On Tue, Sep 23, 2025 at 10:06:13AM -0300, David Bremner wrote: > > I have been testing this series on the 6.17 pre-releases, lightly > patched by the collabora [1] and mnt-reform [2] teams. I have been testing > on bare hardware, on MNT Research's pocket-reform product. I'm afraid I > can only offer CI level feedback, but in case it helps > > 1) The series now applies cleanly onto collabora's rockchip-devel branch > 2) The resulting kernel boots and runs OK. > 3) the resulting kernel still fails the "platform" pm_test [3] with > "rockchip-dw-pcie a40c00000.pcie: Phy link never came up" > > Of course there could be other reasons for (3), I don't know that much > about it. I don't think this driver has support for hibernate in upstream. Did you try forward porting this patch: https://lore.kernel.org/linux-pci/1744940759-23823-1-git-send-email-shawn.lin@rock-chips.com/ Also, have you tried the downstream driver? If it is working there, perhaps you could try to isolate the changes that make it work there. Otherwise, I would recommend you to reach out to author of the patch above ask for support. Kind regards, Niklas