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Thu, 12 Jun 2025 13:50:03 -0700 (PDT) Received: from geday ([2804:7f2:800b:725c::dead:c001]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2365d88bfe4sm1670705ad.18.2025.06.12.13.49.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Jun 2025 13:50:03 -0700 (PDT) Date: Thu, 12 Jun 2025 17:49:57 -0300 From: Geraldo Nascimento To: Bjorn Helgaas Cc: linux-rockchip@lists.infradead.org, Shawn Lin , Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Heiko Stuebner , Vinod Koul , Kishon Vijay Abraham I , linux-phy@lists.infradead.org, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH v2 1/4] PCI: pcie-rockchip: add Link Control and Status Register 2 Message-ID: References: <28ae3286f3217881ae6ea3aecad47ae4567d6ec7.1749588810.git.geraldogabriel@gmail.com> <20250611194259.GA825364@bhelgaas> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250611194259.GA825364@bhelgaas> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250612_215008_875208_88CCDF98 X-CRM114-Status: GOOD ( 11.83 ) 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 Wed, Jun 11, 2025 at 02:42:59PM -0500, Bjorn Helgaas wrote: > I would do a pure conversion patch of the existing #defines. Then I > suspect you wouldn't need a patch to add the Link 2 registers at all > because you could just use the #defines from pci_regs.h. Hi Bjorn, I've hit roadblock, maybe you can help? PCIE_RC_CONFIG_DCR_CSPL_LIMIT is defined as 0xff... I'd like to kill that define too, since it will be orphaned. But hardcoding 0xff seems like illegible solution. Perhaps there is another standard define that maps to 0xff that I can use? Anyone comes to your mind? Thanks! Geraldo Nascimento