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[24.155.109.49]) by smtp.gmail.com with ESMTPSA id c204sm4755034oob.44.2020.12.15.09.14.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Dec 2020 09:14:56 -0800 (PST) Received: (nullmailer pid 4047644 invoked by uid 1000); Tue, 15 Dec 2020 17:14:55 -0000 Date: Tue, 15 Dec 2020 11:14:55 -0600 From: Rob Herring To: Serge Semin Subject: Re: [PATCH 02/25] dt-bindings: net: dwmac: Extend number of PBL values Message-ID: <20201215171455.GA4047592@robh.at.kernel.org> References: <20201214091616.13545-1-Sergey.Semin@baikalelectronics.ru> <20201214091616.13545-3-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20201214091616.13545-3-Sergey.Semin@baikalelectronics.ru> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201215_121458_701385_9E244511 X-CRM114-Status: GOOD ( 14.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Maxime Ripard , devicetree@vger.kernel.org, Alexandre Torgue , Joao Pinto , netdev@vger.kernel.org, Lars Persson , linux-stm32@st-md-mailman.stormreply.com, linux-kernel@vger.kernel.org, Serge Semin , Alexey Malahov , Rob Herring , Jose Abreu , Pavel Parkhomenko , Maxime Coquelin , Giuseppe Cavallaro , Jakub Kicinski , Johan Hovold , Vyacheslav Mitrofanov , "David S. Miller" , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 14 Dec 2020 12:15:52 +0300, Serge Semin wrote: > In accordance with [1] the permitted PBL values can be set as one of > [1, 2, 4, 8, 16, 32]. The rest of the values results in undefined > behavior. At the same time some of the permitted values can be also > invalid depending on the controller FIFOs size and the data bus width. > Seeing due to having too many variables all the possible PBL property > constraints can't be implemented in the bindings schema, let's extend > the set of permitted PBL values to be as much as the configuration > register supports leaving the undefined behaviour cases for developers > to handle. > > [1] DesignWare Cores Ethernet MAC Universal Databook, Revision 3.73a, > October 2013, p. 380. > > Signed-off-by: Serge Semin > --- > Documentation/devicetree/bindings/net/snps,dwmac.yaml | 11 +++++++---- > 1 file changed, 7 insertions(+), 4 deletions(-) > Reviewed-by: Rob Herring _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel