From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792773166; b=ZcG+MAZvEC08scN/co//+tafl5QOKMP1iiKKCW5qNlwHaFLqS4WQ5bQI4UaV3QD0Q+X+ /qc2pgXBWPSPvJrdR4BLfFF+Kfk97Jhgxo153NW7VWqdhkM0B0UzYUxmcQHmxbbXMg5ei qx9q5CF/r44nMyNdx8YrUg9BFR/r+XVnZ0hKWmSNwNxHb8UCLiZMle1c9WJ4xrDdXpnpK 0YfoexjN6xckXbN4svxK5PhuF1pCVH583i/ZLutcRmOYI7Ghs9+7vEGu6ZOwq9PJTwfFS aKCtMkJZVTl/qEUtX6RoMTIzuuEVCPVE7m7NmPi1rqNahMpDFavAv8ivn4ff/pftEMw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792773166; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: References:MIME-Version:Content-Type:Content-Disposition:In-Reply-To; bh=b5iTkwSOZHA0NMgeve9AVcmRA7avz9vnNSokzShuXNI=; b=ksH44IrHbobdhCgFA1ydDfR8wWhCdXDcSeZNhAoC5y80W5sWDO0j0XgiCiL2ydpU/8vA lOi73XpWwnRNfaGN6JyN3usJLXTGSNDRsnv5XewtTWllgmQhKCIysvDVhQk7TREbdXKyz 3hfDm/Yos/4d6XdRLyPucecmvBU3/cg7tbXutqxK0sNr4Z0Mre7luyHVnxJCWo9a8IKJV YNPJjsdMiJrLwOGmvTLDIn6fskLmOpLf1jv1/PI7nC8Luwavp6VSBI5dklKHfYsHkeRrs 9eZTi9ObY2N0TnD89kqBkHtOFyGpCA6/0Kq0cH/B7Se8v5u9f4UPGb9gz07qOuUtEnA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=ZDroGC+x; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 69239606A31B; Fri, 23 Oct 2026 16:32:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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 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-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list 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> 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