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Thu, 13 Jul 2023 17:17:15 +0200 (CEST) Date: Thu, 13 Jul 2023 17:17:15 +0200 (CEST) From: Richard Weinberger To: Miquel Raynal Cc: Johan Jonker , Vignesh Raghavendra , heiko@sntech.de, linux-mtd , linux-kernel , linux-arm-kernel , linux-rockchip@lists.infradead.org, yifeng zhao Message-ID: <1618382560.2326931.1689261435022.JavaMail.zimbra@nod.at> In-Reply-To: <20230712154142.3c49d782@xps-13> References: <0047fc52-bc45-a768-8bdd-c0f12cddc17e@gmail.com> <457c1da7-61dc-2a56-4f86-47413795138c@gmail.com> <20230704171348.5eee98f7@xps-13> <3af40582-d350-8eac-8639-10c285964c49@gmail.com> <20230712154142.3c49d782@xps-13> Subject: Re: [PATCH v3 3/3] mtd: rawnand: rockchip-nand-controller: add skipbbt option MIME-Version: 1.0 X-Originating-IP: [195.201.40.130] X-Mailer: Zimbra 8.8.12_GA_3807 (ZimbraWebClient - FF97 (Linux)/8.8.12_GA_3809) Thread-Topic: rawnand: rockchip-nand-controller: add skipbbt option Thread-Index: ROgfjDoY10Wn2JoZkeBFpS1VV4xmgg== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230713_081722_218462_BB7EC497 X-CRM114-Status: GOOD ( 10.10 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; 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Thu, 13 Jul 2023 17:17:15 +0200 (CEST) Date: Thu, 13 Jul 2023 17:17:15 +0200 (CEST) From: Richard Weinberger To: Miquel Raynal Cc: Johan Jonker , Vignesh Raghavendra , heiko@sntech.de, linux-mtd , linux-kernel , linux-arm-kernel , linux-rockchip@lists.infradead.org, yifeng zhao Message-ID: <1618382560.2326931.1689261435022.JavaMail.zimbra@nod.at> In-Reply-To: <20230712154142.3c49d782@xps-13> References: <0047fc52-bc45-a768-8bdd-c0f12cddc17e@gmail.com> <457c1da7-61dc-2a56-4f86-47413795138c@gmail.com> <20230704171348.5eee98f7@xps-13> <3af40582-d350-8eac-8639-10c285964c49@gmail.com> <20230712154142.3c49d782@xps-13> Subject: Re: [PATCH v3 3/3] mtd: rawnand: rockchip-nand-controller: add skipbbt option MIME-Version: 1.0 X-Originating-IP: [195.201.40.130] X-Mailer: Zimbra 8.8.12_GA_3807 (ZimbraWebClient - FF97 (Linux)/8.8.12_GA_3809) Thread-Topic: rawnand: rockchip-nand-controller: add skipbbt option Thread-Index: ROgfjDoY10Wn2JoZkeBFpS1VV4xmgg== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230713_081722_218462_BB7EC497 X-CRM114-Status: GOOD ( 10.10 ) 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; 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Thu, 13 Jul 2023 17:17:15 +0200 (CEST) Received: from lithops.sigma-star.at ([127.0.0.1]) by localhost (lithops.sigma-star.at [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id wjzgm6220rwR; Thu, 13 Jul 2023 17:17:15 +0200 (CEST) Received: from lithops.sigma-star.at (lithops.sigma-star.at [195.201.40.130]) by lithops.sigma-star.at (Postfix) with ESMTP id 2B91F62F290F; Thu, 13 Jul 2023 17:17:15 +0200 (CEST) Date: Thu, 13 Jul 2023 17:17:15 +0200 (CEST) From: Richard Weinberger To: Miquel Raynal Cc: Johan Jonker , Vignesh Raghavendra , heiko@sntech.de, linux-mtd , linux-kernel , linux-arm-kernel , linux-rockchip@lists.infradead.org, yifeng zhao Message-ID: <1618382560.2326931.1689261435022.JavaMail.zimbra@nod.at> In-Reply-To: <20230712154142.3c49d782@xps-13> References: <0047fc52-bc45-a768-8bdd-c0f12cddc17e@gmail.com> <457c1da7-61dc-2a56-4f86-47413795138c@gmail.com> <20230704171348.5eee98f7@xps-13> <3af40582-d350-8eac-8639-10c285964c49@gmail.com> <20230712154142.3c49d782@xps-13> Subject: Re: [PATCH v3 3/3] mtd: rawnand: rockchip-nand-controller: add skipbbt option MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT X-Originating-IP: [195.201.40.130] X-Mailer: Zimbra 8.8.12_GA_3807 (ZimbraWebClient - FF97 (Linux)/8.8.12_GA_3809) Thread-Topic: rawnand: rockchip-nand-controller: add skipbbt option Thread-Index: ROgfjDoY10Wn2JoZkeBFpS1VV4xmgg== Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ----- Ursprüngliche Mail ----- > >> > For the boot I think I proposed a DT property. I don't remember how far >> > the discussion went. >> >> Is there a web link of that discussion? > > https://lore.kernel.org/linux-mtd/20230609104426.3901df54@xps-13/ > > Maybe the term "DT property" did not appear but that's what I had in > mind :-) I don't know if it must be a chip or a partition property. > > Richard, here is where I would like your feedback, I am kind of opposed > to a "skip_bbt" module parameter. It's not a strong opinion, if you > think it's fine I'm open. > > I would rather prefer a DT property which says "do not use the > standard pattern". Yes, please no new module parameters. A module parameter should only affect the behavior of the driver itself (e.g. debug mode) but not be device specific. We made this mistake in the past too often. :-( A single driver can serve more devices. Therefore IMHO controlling this via DT makes perfectly sense. Thanks, //richard