From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1C98684E0D; Thu, 25 Apr 2024 10:01:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714039282; cv=none; b=ZH3yhOmm4oxN7hwkiIck9tWTPF0pc/2wFR1EtYs7T2p562rpiZSP38DDO0H8zwcrtK8fCbuI6q9wLkMAvQr6V2ja4m0FqiQGwZoZiZW87J3svzfLUoiMohqMqO8UaZ8m0E3axDLu1OzB1tDccr4A7y36w08pNEJdnSED8ovA8nQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714039282; c=relaxed/simple; bh=ADHJqszQ9Txm7S8seePFYWigxzHqi720FOMldE5VrLk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=qunoqBGeUhzvxdlZYr5Aj4aDRcTi9pjY4dXe7Fzf1RX9+NobWzF4pT3CNePjpHtcTzUAyMs2OQjZaJ3Zlzv4GJV0+0BlwcOHSg0Bsl1oxOHPEPIpQM3IDDCyR9AHddNUJef6nmPJiuNKF9vvpPjmdADRwvW+ZpGvlJSqh+iHtDU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org; spf=fail smtp.mailfrom=kernel.org; arc=none smtp.client-ip=198.175.65.9 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=kernel.org X-CSE-ConnectionGUID: AwZPqcaHScCjlqrH87V/Og== X-CSE-MsgGUID: Cf/IN/6kQ7Gmbl3vjOv7dw== X-IronPort-AV: E=McAfee;i="6600,9927,11054"; a="32205332" X-IronPort-AV: E=Sophos;i="6.07,229,1708416000"; d="scan'208";a="32205332" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Apr 2024 03:01:20 -0700 X-CSE-ConnectionGUID: vluF/VF4QJWns9PuSQw9+w== X-CSE-MsgGUID: vQ4YuJjmSGGXK3+CRl6LhQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,229,1708416000"; d="scan'208";a="29647088" Received: from smile.fi.intel.com ([10.237.72.54]) by fmviesa004.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Apr 2024 03:01:16 -0700 Received: from andy by smile.fi.intel.com with local (Exim 4.97) (envelope-from ) id 1rzvui-00000000xMg-005v; Thu, 25 Apr 2024 13:01:12 +0300 Date: Thu, 25 Apr 2024 13:01:11 +0300 From: Andy Shevchenko To: Konstantin Pugin Cc: krzk@kernel.org, conor@kernel.org, lkp@intel.com, vz@mleia.com, robh@kernel.org, jcmvbkbc@gmail.com, nicolas.ferre@microchip.com, manikanta.guntupalli@amd.com, corbet@lwn.net, ychuang3@nuvoton.com, u.kleine-koenig@pengutronix.de, Maarten.Brock@sttls.nl, Greg Kroah-Hartman , Jiri Slaby , Hugo Villeneuve , Lech Perczak , Ilpo =?iso-8859-1?Q?J=E4rvinen?= , Konstantin Pugin , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org Subject: Re: [PATCH v8 0/3] add support for EXAR XR20M1172 UART Message-ID: References: <20240424191908.32565-1-rilian.la.te@ya.ru> Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240424191908.32565-1-rilian.la.te@ya.ru> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo On Wed, Apr 24, 2024 at 10:18:51PM +0300, Konstantin Pugin wrote: > EXAR XR20M1172 UART is mostly SC16IS762-compatible, but > it has additional register which can change UART multiplier > to 4x and 8x, similar to UPF_MAGIC_MULTIPLIER does. So, I used this > flag to guard access to its specific DLD register. It seems than > other EXAR SPI UART modules also have this register, but I tested > only XR20M1172. > Yes, in datasheet this register is called "DLD - Divisor Fractional" > or "DLD - Divisor Fractional Register", calling depends on datasheet > version. A side note about email. It seems you have To: email header empty which may increase chances to get these messages into spam. Again, I recommend to look at the implementation of my script [1] which I use on daily-basis and re-use it or taking an ideas how to send patches to the Linux kernel mailing lists. Alternatively you may study `b4` tool, it also has something like that in recent versions. [1]: https://github.com/andy-shev/home-bin-tools/blob/master/ge2maintainer.sh -- With Best Regards, Andy Shevchenko