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Wed, 07 Jun 2023 01:54:02 -0700 (PDT) Received: from [192.168.1.20] ([178.197.219.26]) by smtp.gmail.com with ESMTPSA id i5-20020a170906850500b0097886843f75sm328645ejx.177.2023.06.07.01.54.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 07 Jun 2023 01:54:01 -0700 (PDT) Message-ID: <08da4e86-433a-7d2e-25ff-ffa24221abdf@linaro.org> Date: Wed, 7 Jun 2023 10:53:59 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.2 Subject: Re: [PATCH v1] dt-bindings: nand: meson: Fix 'nand-rb' property Content-Language: en-US To: Arseniy Krasnov , Miquel Raynal Cc: Liang Yang , Richard Weinberger , Vignesh Raghavendra , Rob Herring , Krzysztof Kozlowski , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , oxffffaa@gmail.com, kernel@sberdevices.ru, linux-mtd@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org References: <20230606193507.35024-1-AVKrasnov@sberdevices.ru> <20230607095802.3adcd4f9@xps-13> <166bdc27-f77c-9076-f866-180cfa5bff76@sberdevices.ru> From: Krzysztof Kozlowski In-Reply-To: <166bdc27-f77c-9076-f866-180cfa5bff76@sberdevices.ru> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230607_015407_212301_C1F7EF2D X-CRM114-Status: GOOD ( 17.35 ) 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: , 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 07/06/2023 10:40, Arseniy Krasnov wrote: > Hello Miquel, > > On 07.06.2023 10:58, Miquel Raynal wrote: > >> Hi Arseniy, >> >> AVKrasnov@sberdevices.ru wrote on Tue, 6 Jun 2023 22:35:07 +0300: >> >>> Add description of 'nand-rb' property. Use "Fixes" because this property >>> must be supported since the beginning. For this controller 'nand-rb' is >>> stored in the controller node (not in chip), because it has only single >>> r/b wire for all chips. >> >> Sorry if I mislead you in the first place, but you could definitely >> have two chips and only one with RB wired. It needs to be defined in >> the chips. > > Ok, so to clarify: is it ok, that in bindings this property will be placed in the > chip, but in driver, i'm trying to read it from the controller node (thus in > dts file it will be also in controller node)? No, because how would your DTS pass validation? I understand you did not test the bindings, but this will improve, right? > Because in driver there is no sense > to store this value in chip structure. Driver does not shape the DTS. Hardware does. Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel