From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 356C6CD37BE for ; Mon, 11 May 2026 18:18:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=UzghNUT8txexFJCdbHTb6EbJJDc5OYiK3uW8TFQuhMM=; b=JsJIKWU35gupx/QvU0u6sqbkyd TZYAv9eSdNX5SzgeB19uI7AmPo3Erd+Tf6/okCw8vrip2+NLHBoASA8iPGiWfoGvsCdedr0Vb7gLc tmSU6YnmPlQMu9+N287DIkExQV8r/2RwLqhCzASn2X8amw6oQkdj6AhV7gw2dCeYRGbcafUB5hh86 k+/ZFoddPHAkUbtIZqTq+4O5lmM9I5TWWxp/31NXEQ9cCbdTnxsHacyeQG0HmfP1P5XSU0TdOPMLM fQg+v5kT9TAiH+Exg5N9hbo58cpMTKY0LEP6uNZaE4j1UevS4nbeqsBGaatBagOfy6XkJMo9+2Lxl /vAtIB0Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wMVDN-0000000ETWo-26um; Mon, 11 May 2026 18:18:49 +0000 Received: from vps0.lunn.ch ([156.67.10.101]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wMVDJ-0000000ETVi-46EP for linux-arm-kernel@lists.infradead.org; Mon, 11 May 2026 18:18:48 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Disposition:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:From:Sender:Reply-To:Subject: Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Content-Disposition:In-Reply-To:References; bh=UzghNUT8txexFJCdbHTb6EbJJDc5OYiK3uW8TFQuhMM=; b=Svt1i7E7y0/08/Z+DzdyOhPsu3 cjCGgikyfsBuQ78H8BQsgU6RWNsRiDoyUHNMSa7aqhb2LyfNOcsinu+3i/qoj43i6bx8XBo64xfEf MCj3PsNwnWHh5s1uZcp+s04ZWd82kZSLNO5s/bs9SsI8xPE5tHHQdySpiQU1zJx4IT2Q=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1wMVD2-002QBE-6n; Mon, 11 May 2026 20:18:28 +0200 Date: Mon, 11 May 2026 20:18:28 +0200 From: Andrew Lunn To: Mathieu Poirier Cc: tanmay.shah@amd.com, Arnaud POULIQUEN , Beleswar Prasad Padhi , Shenwei Wang , Linus Walleij , Bartosz Golaszewski , Jonathan Corbet , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Frank Li , Sascha Hauer , Shuah Khan , "linux-gpio@vger.kernel.org" , "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Pengutronix Kernel Team , Fabio Estevam , Peng Fan , "devicetree@vger.kernel.org" , "linux-remoteproc@vger.kernel.org" , "imx@lists.linux.dev" , "linux-arm-kernel@lists.infradead.org" , dl-linux-imx , Bartosz Golaszewski Subject: Re: [PATCH v13 3/4] gpio: rpmsg: add generic rpmsg GPIO driver Message-ID: <4ae35920-2539-4b12-8dea-efd407b8aaeb@lunn.ch> References: <472f85bd-42c2-40c6-abfd-b76924797069@ti.com> <21de8440-adf7-454b-acfc-06e50882e075@ti.com> <4c526816-b127-43e7-86e9-eee4dc1152bc@foss.st.com> <87850f70-5275-4393-941f-d01146a9cffc@foss.st.com> <08c815f5-ccbe-404a-95a1-a549aac8a55d@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260511_111846_020832_2EA8A453 X-CRM114-Status: UNSURE ( 9.78 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org > Arnaud, Beleswar, Andrew and I are all advocating for one endpoint per > GPIO controller. The remaining issue it about the best way to work > out source and destination addresses between Linux and the remote > processor. I'm running out of time for today but I'll return to this > thread with a final analysis by the end of the week. How many of the participants here will be in Minneapolis next week for the Embedded Linux Conference? There is even a talk about this: https://osselcna2026.sched.com/event/2JQpx/building-virtual-drivers-with-rpmsg-key-design-principles-challenges-trade-offs-beleswar-prasad-padhi-texas-instruments?iframe=yes&w=100%&sidebar=yes&bg=no Maybe we can get together and decide on the final design after the session. Andrew