From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) (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 58A05199E94; Fri, 4 Apr 2025 10:21:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743762099; cv=none; b=n0OHwJsPoaL8mKnVY6Vi1p9TSytsJSIwJiV8WZu8C04bB/rFmhGYMbJfyO+2NAflhe4HBM0Yu+sGAk/0nnvUItcvMp9XxOYxoUSmnBSZjJp/juDVAuBzP8HpgkOkfHrB8pyR5q+1DZZuLZbBhKwMaBTCYZqIMYdUMnHHl6OL8XE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743762099; c=relaxed/simple; bh=+R5alz/hiVkEdro8zZ5Zd00elGcA9uY7RSHDpwPPN2A=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=rVSWwG6gIR0fqOfIIpq25MedGz9oRDEaUVHTbfG5nVvzR0uCi3rC/vXVwEJ/rM7AbklI6Vc8PsF+LK4QUV1btDe3+3qQrDaTp/tc/LyaOSlp9W1WMDpsRweCQuxCg4dlrbx6xdrr1YcEwe6fMTFkVdyXWViMkVN5KzbfozsLy8Y= 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=kC2y0deB; arc=none smtp.client-ip=192.198.163.18 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="kC2y0deB" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1743762097; x=1775298097; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=+R5alz/hiVkEdro8zZ5Zd00elGcA9uY7RSHDpwPPN2A=; b=kC2y0deBNLZfrAP7AEiaC9q/q036OzfsdULkhsmpoqYxICheAqvORydY e1sn2Du8YTVNJJk7yxhqTqF+c0z7irMjuX+Ke/OXk4YH52UFJZ63C2vdn 4hrUUFIxFURCbWfEMCPIQZuNbm4mIZqPPus3yoRTMcS0mDo83skRnWm4F jjSY79uPdzPKYs5u+lUOVSVlEvhCwXCrC6kmoYHodYq8ulLy3xiQ0cmrL N3Krn3eEjjjYpvnV5aWKbtYKiv6YWcotBFE3z/phhNDvYdwds9FNienRf VaAOkMn1gwqCq2wQ7WquJ0YLCwm2V2vdB8v3X6RhgYrrB2kDiT3oeDdjI Q==; X-CSE-ConnectionGUID: /ujJkdsUQCidjNNW07S3ig== X-CSE-MsgGUID: NM15iKroQKSrosPfTdigOg== X-IronPort-AV: E=McAfee;i="6700,10204,11393"; a="44446549" X-IronPort-AV: E=Sophos;i="6.15,187,1739865600"; d="scan'208";a="44446549" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Apr 2025 03:21:36 -0700 X-CSE-ConnectionGUID: pdWTszeuQECRgaqdOhRD0Q== X-CSE-MsgGUID: XAJ+m7HyQBqR/TLj8Y+JXw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,187,1739865600"; d="scan'208";a="128186092" Received: from smile.fi.intel.com ([10.237.72.58]) by orviesa008.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Apr 2025 03:21:34 -0700 Received: from andy by smile.fi.intel.com with local (Exim 4.98.2) (envelope-from ) id 1u0eB0-0000000965l-1tSV; Fri, 04 Apr 2025 13:21:30 +0300 Date: Fri, 4 Apr 2025 13:21:30 +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 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. > 2): data->uart_16550_compatible == 0 Thanks! -- With Best Regards, Andy Shevchenko