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Subject: Re: [PATCH v2 1/4] i2c/busses: Add i2c-icy for I2C on m68k/Amiga To: Wolfram Sang Cc: linux-i2c@vger.kernel.org, linux-hwmon@vger.kernel.org, Wolfram Sang , Jean Delvare , Guenter Roeck , linux-m68k@vger.kernel.org, linux-kernel@vger.kernel.org, glaubitz@physik.fu-berlin.de References: <20190812235237.21797-1-max@enpas.org> <20190814194714.GB9756@kunai> <20190815071228.GA1054@kunai> From: Max Staudt Openpgp: preference=signencrypt Autocrypt: addr=max@enpas.org; prefer-encrypt=mutual; keydata= xsNNBFWfXgEBIADcbJMG2xuJBIVNlhj5AFBwKLZ6GPo3tGxHye+Bk3R3W5uIws3Sxbuj++7R PoWqUkvrdsxJAmnkFgMKx4euW/MCzXXgEQOM2nE0CWR7xmutpoXYc9BLZ2HHE2mSkpXVa1Ea UTm00jR+BUXgG/ZzCRkkLvN1W9Hkdb75qE/HIpkkVyDiSteJTIjGnpTnJrwiHbZVvXoR/Bx3 IWFNpuG80xnsGv3X9ierbalXaI3ZrmFiezbPuGzG1kqV1q0gdV4DNuFVi1NjpQU1aTmBV8bv gDi2Wygs1pOSj+dlLPwUJ+9jGVzFXiM3xUkNaJc4UPRKxAGskh1nWDdg0odbs0OarQ0o+E+v d7WbKK7TR1jfYNcQ+Trr0ca0m72XNFk0hUxNyaEv3kkZEpAv0IDKqXFQD700kr3ftZ8ZKOxd 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Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20190815071228.GA1054@kunai> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08/15/2019 09:12 AM, Wolfram Sang wrote: >> I kept it in because i2c-elektor also exposes it in the same way, and >> it seems useful. > > Yeah, I noticed. I don't know how useful it is in practice (same for the > getown callback) but I don't have better ideas, so let's just keep this > to be consistent. Well, the other option is to remove it, and then add it back once somebody complains - which is unlikely to happen. The clock parameter is PCF8584 specific anyway, and I think removing it is a good option, as I've done the same with getown() (where in i2c-elektor, 'own' sets the PCF8584's own address). Question is, if I remove the parameter, I'd like it to be non-destructive. Do you know of anything that can go wrong if the I2C master is running the bus on a wrong clock? Thanks Max