From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) (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 CB0F11FFC56; Mon, 7 Apr 2025 14:34:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744036495; cv=none; b=nZ0TovukCpcmbWoTEeIpm9yFhMU02V42moI2f6J8kEvFKDXnmDIHRSc/QC/Nohzt4QRnjksf0wutrWJvvUoUNdLbZ+R4x1z+PiSotL/5ZDLqOGfSE9lehWX4MyQa7f7sCxYKfmJ8mrH1oBIp8LnGP0mlpLtMAqjSvMvtJM6A+U0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744036495; c=relaxed/simple; bh=mPfDokFbtrpEzwu28b96t1De3SwmgWOtlS5X+EEio8M=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=TqUr0nghiLZSwI4+dH5OGFAU7tHEs7uknL8WgLnzoZuuz8ZXTHf3OxKTqJGNh+B3gIxK6dVtpV8InwWfj0EPBK69Jjbl8UuPGnR42seiZfLULX/UQzdEWaVXQXR62ct+XZDhVn7r8md3pAAfEFCVvGwpQTcUzlG2BxyY082QhBE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=TSg4TTXw; arc=none smtp.client-ip=198.175.65.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="TSg4TTXw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1744036494; x=1775572494; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=mPfDokFbtrpEzwu28b96t1De3SwmgWOtlS5X+EEio8M=; b=TSg4TTXw4H3gtXC3ve2eVNs5LaiWDraLQXyy4K3yMyofspJlWyMihC1e NB3Pxe62LqQaB0DsAzM4mGzg/v1JCwASsdEeUpp0bqyjUlZ5tYFpcyyY+ 2Fq8RVLbw/1rkGYqR23LQezwMO4MekHsHzwKWPZb3NU6nfQZD63ZnvzzG QZffarAXjS29Y+mRbPehawc04R6gZjoJM4b9m+j167dcedhKUwZ/hnZ1B dDdlLGSDZ3IXjsVMzksO3ZV+WO/xj0QpVmPCTEQqWItVPwHvemVgS3Wo1 p6RgVQNgKWzNgztXSMpLfiJLcnKoQBGcVXVy1QQBnd4ebpECVPOZnyNAz g==; X-CSE-ConnectionGUID: rolpRxQcToa4RIa5Ob2diQ== X-CSE-MsgGUID: m4D6AP0dRk6Qa5cIR0B5Bg== X-IronPort-AV: E=McAfee;i="6700,10204,11397"; a="55615744" X-IronPort-AV: E=Sophos;i="6.15,194,1739865600"; d="scan'208";a="55615744" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Apr 2025 07:34:54 -0700 X-CSE-ConnectionGUID: pF7tAaSRSCOyGFm9TDhqKw== X-CSE-MsgGUID: oNznucgdRduhwCI2TsI85Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,194,1739865600"; d="scan'208";a="132946660" Received: from smile.fi.intel.com ([10.237.72.58]) by orviesa004.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Apr 2025 07:34:50 -0700 Received: from andy by smile.fi.intel.com with local (Exim 4.98.2) (envelope-from ) id 1u1nYk-0000000A63p-3JCB; Mon, 07 Apr 2025 17:34:46 +0300 Date: Mon, 7 Apr 2025 17:34:46 +0300 From: Andy Shevchenko To: yunhui cui Cc: gregkh@linuxfoundation.org, jirislaby@kernel.org, john.ogness@linutronix.de, pmladek@suse.com, arnd@arndb.de, namcao@linutronix.de, benjamin.larsson@genexis.eu, schnelle@linux.ibm.com, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org Subject: Re: [External] Re: [PATCH] serial: 8250: fix panic due to PSLVERR Message-ID: References: <20250403090336.16643-1-cuiyunhui@bytedance.com> 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=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo On Mon, Apr 07, 2025 at 09:00:22PM +0800, yunhui cui wrote: > On Fri, Apr 4, 2025 at 6:21 PM Andy Shevchenko > wrote: > > On Fri, Apr 04, 2025 at 10:31:25AM +0800, yunhui cui wrote: > > > On Thu, Apr 3, 2025 at 7:50 PM Andy Shevchenko > > > wrote: > > > > On Thu, Apr 03, 2025 at 02:36:16PM +0300, Andy Shevchenko wrote: > > > > > On Thu, Apr 03, 2025 at 05:03:36PM +0800, Yunhui Cui wrote: > > > > > > > > A couple of more questions here: > > > > 1) what is the DW IP version and where did you get the PSLVERR_RESP_EN > > > > parameter from? > > > > 2) what is the setting of the UART_16550_COMPATIBLE parameter? > > > > > > 1): Refer to: https://www.synopsys.com/dw/ipdir.php?c=DW_apb_uart > > > > I don't understand this. I asked about version of the IP, I have datasheets > > already for many of them, I can't find PSLVERR_RESP_EN there, that's why the > > question. > > You can check the link: > https://iccircle.com/static/upload/img20240313113905.pdf for the > relevant introduction. This is helpful, thank you! -- With Best Regards, Andy Shevchenko