From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 73CD4C61DB2 for ; Fri, 13 Jun 2025 11:32:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:Date:Message-Id:Subject:References:In-Reply-To:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=6QzfxDUxZ7vG+0KoipotwP1mLEGJtvv01ij0pCLa6Nk=; b=uzHdjB4X0ogoCTHUPGiawHy1eN NniPCyOIVx60axFY2kqIzWAqIkpDQ/8y/ENebK9PEP0jEU+wPu3JVGfm58gOyWf9ADROD4EBpmguE IeUL29wczzShTWbzsDEOOwlqs9w0Up61SRluFw+Wf0mZNisxhnqot8cDRKqgswsisgYqLR/rJAXOc /5sjQRLRlPSZtYZgco/jl4jvlr12yT4DnNkA726rrs8H8SgHnACByO32SjbsMolgGNAaDPFDz99Pm CAYZYMdGTttv9wpPv0wHFbMBC//AFYrrCG1i9HCscbMHgrc9SDOIJMbEX29XQYRNpZ1vbk6C8NS4Z qA9LVY+Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uQ2dX-0000000GCnG-0p38; Fri, 13 Jun 2025 11:31:55 +0000 Received: from nyc.source.kernel.org ([147.75.193.91]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uQ2Ui-0000000GA0X-34rm; Fri, 13 Jun 2025 11:22:49 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 0E6CDA50CFD; Fri, 13 Jun 2025 11:22:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D7174C4CEE3; Fri, 13 Jun 2025 11:22:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1749813767; bh=5rxzVe3Ow+D6PP7e26gxm2BHAwg7Xs8xFPoeYwGwIMk=; h=From:To:Cc:In-Reply-To:References:Subject:Date:From; b=NE1svWmagWMxeZM77Y3Xv2bWeIm5O6825UTWoqiVxpHm/8aD1cOwbkD4BzKC4LTcK KvJ9sjONO7KAf/4C0i/lCYjDMGi8IKiIC/AXVcPlcIpS7zB4ZyuztQMwRHCCqE3IsH DYqPgOY+qQSP5xbU/940AE0XLq+RDGN0ChENch/EJmbeIYu0UsPD3D19/F0anAFeWw apAl8vKK4vfAZg4PjA1UFv9TMEdHphvcLKzZwGomh9x6LchEtOWOHxxhNb45Kpj6QL 7Um/DAUObxd00UaeXa5fA7gF16U9EGsHbnBAAGbj050vKZql1RVysAgLQPi01HMWq3 BdcFHPDeifJeA== From: Manivannan Sadhasivam To: Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Rob Herring , Bjorn Helgaas , Heiko Stuebner , Niklas Cassel Cc: Wilfred Mallawa , linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org In-Reply-To: <20250613101908.2182053-2-cassel@kernel.org> References: <20250613101908.2182053-2-cassel@kernel.org> Subject: Re: [PATCH v2] PCI: dw-rockchip: Delay link training after hot reset in EP mode Message-Id: <174981376322.39040.626028156798612367.b4-ty@kernel.org> Date: Fri, 13 Jun 2025 16:52:43 +0530 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.14.2 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250613_042248_847015_363E87C9 X-CRM114-Status: UNSURE ( 6.40 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, 13 Jun 2025 12:19:09 +0200, Niklas Cassel wrote: > RK3588 TRM, section "11.6.1.3.3 Hot Reset and Link-Down Reset" states that: > """ > If you want to delay link re-establishment (after reset) so that you can > reprogram some registers through DBI, you must set app_ltssm_enable =0 > immediately after core_rst_n as shown in above. This can be achieved by > enable the app_dly2_en, and end-up the delay by assert app_dly2_done. > """ > > [...] Applied, thanks! [1/1] PCI: dw-rockchip: Delay link training after hot reset in EP mode commit: dcca6051a220484f0c1a5cb018f3012735067254 Best regards, -- Manivannan Sadhasivam