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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5ECD7C4167B for ; Mon, 4 Dec 2023 13:39:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235723AbjLDNjA (ORCPT ); Mon, 4 Dec 2023 08:39:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44252 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235696AbjLDNi3 (ORCPT ); Mon, 4 Dec 2023 08:38:29 -0500 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.93]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ED15F1985; Mon, 4 Dec 2023 05:29:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1701696580; x=1733232580; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=WoWMFgig9uBFYI9AMo/dQVD9UIUxJBVY04YdMlNiXMI=; b=TTu/2Mi083EJ/MyyWeuORnhiw/hRtos2vaMm11HRZfkO4UWJtVTFLDGW 8tz7LTFbvAbDzSIRNq0+v0zpzWxKA5ixd6RtMriMGG59TAijs4O53lUvf xmJrVZOJnK4iigCyS0TKJaqyaZWBA1B4Y6TYMsgE49qFNoy2+77NfpF7t FoZpFAyZMGFtFMYbV/c1WU0MeAIzkMt1U3X8nKN+gLxJk+lC5Pg5TFtjn xQ/3MzA6VOprzK2hATeUYNVmAjd5lnNI+9ixKArV6xXS49GzJR4Gdh0KK LsErjkiV8mznDwdLxJHjh/AjosOteQXRDlhbu5fsK4UN0wpc6Mv+61Av7 g==; X-IronPort-AV: E=McAfee;i="6600,9927,10913"; a="390890360" X-IronPort-AV: E=Sophos;i="6.04,249,1695711600"; d="scan'208";a="390890360" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Dec 2023 05:29:40 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10913"; a="836583187" X-IronPort-AV: E=Sophos;i="6.04,249,1695711600"; d="scan'208";a="836583187" Received: from smile.fi.intel.com ([10.237.72.54]) by fmsmga008.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Dec 2023 05:29:38 -0800 Received: from andy by smile.fi.intel.com with local (Exim 4.97) (envelope-from ) id 1rA90x-00000001lAf-1yEw; Mon, 04 Dec 2023 15:29:35 +0200 Date: Mon, 4 Dec 2023 15:29:35 +0200 From: Andy Shevchenko To: Ilpo =?iso-8859-1?Q?J=E4rvinen?= Cc: Dawei Li , Greg Kroah-Hartman , Jiri Slaby , jszhang@kernel.org, LKML , linux-serial , set_pte_at@outlook.com, stable@kernel.org Subject: Re: [PATCH] serial: dw8250: Make DLF feature independent of ADDITIONAL_FEATURE Message-ID: References: <20231204130820.2823688-1-dawei.li@shingroup.cn> <48f6fcce-4b5-a7c0-2fc0-989b9a2fba8@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <48f6fcce-4b5-a7c0-2fc0-989b9a2fba8@linux.intel.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Dec 04, 2023 at 03:20:09PM +0200, Ilpo Järvinen wrote: > On Mon, 4 Dec 2023, Dawei Li wrote: > > > DW apb uart databook defines couples of configuration parameters of DW_apb_uart (as it's part of file name, or spell this fully). > > dw8250 IP, among which there are 2 of them: DesignWare 8250 IP ... > > The bug was hit when we are bringing up dw8250 IP on our hardware Ditto. > > platform, in which parameters are configured in such combination: > > - ADDTIONAL_FEATURE disabled; > > - FRACTIONAL_BAUD_DIVISOR_EN enabled; ... > The very same code change is already in tty-next (from another author). For your convenience: d804987153e7 ("serial: 8250_dw: Decouple DLF register check from UCV") -- With Best Regards, Andy Shevchenko