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Tue, 30 Jun 2020 11:31:41 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 3CF31100034; Tue, 30 Jun 2020 11:31:37 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 00C992ADA04; Tue, 30 Jun 2020 11:31:36 +0200 (CEST) Received: from gnbcxd0016.gnb.st.com (10.75.127.44) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Tue, 30 Jun 2020 11:31:36 +0200 Date: Tue, 30 Jun 2020 11:31:35 +0200 From: Alain Volmat To: Wolfram Sang Subject: Re: [PATCH 4/4] i2c: stm32f7: Add SMBus-specific protocols support Message-ID: <20200630093135.GC5652@gnbcxd0016.gnb.st.com> Mail-Followup-To: Wolfram Sang , Benjamin Tissoires , robh+dt@kernel.org, mark.rutland@arm.com, pierre-yves.mordret@st.com, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, fabrice.gasnier@st.com References: <1588657871-14747-1-git-send-email-alain.volmat@st.com> <1588657871-14747-5-git-send-email-alain.volmat@st.com> <20200523110140.GD3459@ninjato> <20200526103938.GC14423@gnbcxd0016.gnb.st.com> <20200630064050.GA996@ninjato> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200630064050.GA996@ninjato> X-Disclaimer: ce message est personnel / this message is private X-Originating-IP: [10.75.127.44] X-ClientProxiedBy: SFHDAG1NODE3.st.com (10.75.127.3) To SFHDAG3NODE2.st.com (10.75.127.8) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-06-30_03:2020-06-30, 2020-06-29 signatures=0 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: mark.rutland@arm.com, devicetree@vger.kernel.org, alexandre.torgue@st.com, linux-kernel@vger.kernel.org, pierre-yves.mordret@st.com, robh+dt@kernel.org, Benjamin Tissoires , linux-i2c@vger.kernel.org, mcoquelin.stm32@gmail.com, fabrice.gasnier@st.com, linux-stm32@st-md-mailman.stormreply.com, 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 Hi Wolfram, > I meant a generic binding for the host-controller. It could be seen as a > HW description if we need HostNotify on that bus or not. > > Maybe it becomes more clear with the R-Car I2C controller as an example. > It only supports one slave address. If I want HostNotify there, I can't > use another slave backend. Now, it could be that I need the slave EEPROM > backend, although there is a HostNotify capable device on the bus. So, I > am leaning to have a generic "host-notify" binding for the host. > > I consider platform_data legacy. If we use device_property, we should be > safe regarding all current and future HW descriptions, or? Ok, understood. Fine for me that way as well. I am just a little worrying that the "host-notify" can now be present in both controller AND slave nodes and might be a bit hard to understand. At the same time I don't have a better proposal for naming the binding for the controller. Please do not consider serie v2 I just posted few days ago and I will post a serie v3 updating the binding information and using the host-notify binding in the i2c-stm32f7 driver. Alain _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel