From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A0A34606A31B for ; Fri, 23 Oct 2026 16:33:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=mygIgmHT; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=ZDroGC+x 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-Unsubscribe-Post:List-Owner; bh=b5iTkwSOZHA0NMgeve9AVcmRA7avz9vnNSokzShuXNI=; b=mygIgmHTx2h5RZxBRvD5N3bSkv HgHjaSx+Ayo44R7dmnhA2TyVZRYoKA/Ujiv87NdBT+PvMSoIQ38SLRxg0njlLII8QeQVfJnRjyEXm /KrI3kdNOejZ2Sb+2Y2a4Fnu8mYatPVo2rzkmdnIXudi0N5VekZyv23mT4sKZOyahBDK0SMVi7u3D YYgDUF/UAsvO/yYnystCtgV2uiP71SZXZwsRI8/k1dBMu5Fq9l/BGSJsGc9h6S1I8svH7QpD8h4Hg 55NN+q+qJXYU6UNMGY9t7TfTOjdh6S238mrvrTNxU6ApwUIYUHfyWH9vuxegSWWPZ429/kqsMQdFM K2kqkcFw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xKICL-0000000GfKx-0x8m; Fri, 23 Oct 2026 16:32:53 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xKICF-0000000GfJo-1C63 for linux-arm-kernel@lists.infradead.org; Fri, 23 Oct 2026 16:32:47 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 5B4B560A58; Fri, 23 Oct 2026 16:32:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AB9E91F01825; Fri, 23 Oct 2026 16:32:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792773166; bh=b5iTkwSOZHA0NMgeve9AVcmRA7avz9vnNSokzShuXNI=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=ZDroGC+xpkkXkLSz9nuI+opuu5tNARVn8NQVHvBGJ39Wcu5xwGoNJMMCuYl0xpk2S unEbIF+IzanPKZcNUTshlOcL6t3fv1xF8cO5Hjpj9/BUYOX1ZMLKuGBcPPLj/b5BRX dAxWyqRJKfRWVaiL5netmNJNdeuyBFRid9M+kHjzAoHsFtrW3x8NCMnJntoxsuVwkd ADM6h5a0wWiiJqNXcaoCWfeVHSxoOqefKY8gG7CIjE6ZX/zK+DowM8kj5B6Flg7Is0 pwVCAYcQVIOd68eVAnx7t6ySwcE5/D5CYepQn1InkIirF0wWUyrQLFupAkddsWxMER dFvoPAcadEk5g== Date: Fri, 23 Oct 2026 18:32:38 +0200 From: Andi Shyti To: Vincent Jardin Cc: Oleksij Rempel , Pengutronix Kernel Team , Frank Li , Sascha Hauer , Fabio Estevam , linux-i2c@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Carlos Song , Haobin Jiang Subject: Re: [PATCH v3] i2c: imx: add I2C_M_REV_DIR_ADDR and I2C_M_NOSTART Message-ID: References: <20261023-for-upstream-i2c-imx-lx2160-reverse-v3-1-a07b249df381@free.fr> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261023-for-upstream-i2c-imx-lx2160-reverse-v3-1-a07b249df381@free.fr> X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-11.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Hi Vincent, On Fri, Oct 23, 2026 at 04:20:19PM +0200, Vincent Jardin wrote: > The Realtek RTL8366SE SMI read frame per: > > S Addr Rd [A] reg[7:0] [A] reg[15:8] [A] [data[7:0]] A [data[15:8]] NA P > > Linux support it using I2C_M_REV_DIR_ADDR on a write message > that inverts the transmitted R/W bit, and I2C_M_NOSTART on the following > read message that continues the frame without re-addressing. > > This NXP i2c-imx is missing such support, so on an LX2160A the Realtek switch > could not be used. > > Acked-by: Carlos Song > Reviewed-by: Frank Li > Signed-off-by: Vincent Jardin pushed to i2c/i2c. Thanks, Andi