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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BAC44C5320E for ; Tue, 27 Aug 2024 07:09:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=/b0YcfLS2bPzMoP2YmGfCYg/c7FLxhMIUV5E+aGHB1U=; b=xxsj6Yu3TVtrh0 OS0rjb0z0+KQ9Rq4u5bpP3zs3KDPuuUMiae7TKYULrNdW1boiAKDx8hWWBSQsaf0cUOS5cJ6A4hAH KgbKOXWbfDz+OlmKI3tc6slgKF7kYsHpcWbEb45DfrJ612G6sYyEvt0IXFSAwove5TakwXiHEvucP nEN3TG+1MP2VZ7sNON/zczG32lfZXli7HtwAHPSXXdnDVi+Ecf+HesMIUDzfPEXnBRT9gX5OGvj4E RBMt8aiaUZEp+7VoG6Lfp4vtvE6cp8MuzXzcm31H4+22LegvICAc9uDXt7x2kT4+mvwaix6nu1OoE hV0Oi3ez1DKQZhs5BJbA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1siqKD-0000000A9cP-0mr2; Tue, 27 Aug 2024 07:09:09 +0000 Received: from mgamail.intel.com ([198.175.65.9]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1siqJL-0000000A9Qp-2i6O for linux-i3c@lists.infradead.org; Tue, 27 Aug 2024 07:08:16 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1724742496; x=1756278496; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=LRxPvwgGH3sUNqy7+5c2xlwgfCwTB41TZWDoqLrb+Bo=; b=TiZJflW+vuKtvlKpBeWuajYVghYV7FMy0pCefjW6SEk0BCxO6EkTZAnk Xn/0/tAc6e4uLIt2uYKi7/b+cd4bCgidz0uNQOlM2WGwLSN6KccBgCOCV BYvkVjmAru0OHKi8bZGhdFJb0T5l6RhmlvtASnqICDXpcORDTcuDTcF8s D8Fnjh3MZCsnci4iA/E/lRQTAaZQPcw5uIcqLwpUZd8AZXhWR7jxIvfC8 8Dugebjj9Zw8el6KHGS2n8+uMQM2z3GaBr1ScUdzKkiWmLOxAreO3U18C CbyeGNyUBkM6gJdU1agCXBX2F4bVbDxNb8mAhAhooUppAx8MWxwltMJqG w==; X-CSE-ConnectionGUID: rwq/szDwR66q0YJE4y/sIQ== X-CSE-MsgGUID: 5hFH5r+sTKy5TOMdylojvg== X-IronPort-AV: E=McAfee;i="6700,10204,11176"; a="45718054" X-IronPort-AV: E=Sophos;i="6.10,179,1719903600"; d="scan'208";a="45718054" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Aug 2024 00:08:11 -0700 X-CSE-ConnectionGUID: CISR3S4HSUWI28EeNw/SiA== X-CSE-MsgGUID: L9XDac7bSU+Gw1KGwLd/Qw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,179,1719903600"; d="scan'208";a="67681020" Received: from mylly.fi.intel.com (HELO [10.237.72.151]) ([10.237.72.151]) by orviesa004.jf.intel.com with ESMTP; 27 Aug 2024 00:08:05 -0700 Message-ID: <61f5e4d6-5564-4f51-a586-f1a8693b215d@linux.intel.com> Date: Tue, 27 Aug 2024 10:08:00 +0300 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 3/6] i3c: mipi-i3c-hci: Add a quirk to set PIO mode To: Shyam Sundar S K , Alexandre Belloni Cc: Guruvendra Punugupati , Krishnamoorthi M , linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org References: <20240823141917.692336-1-Shyam-sundar.S-k@amd.com> <20240823141917.692336-4-Shyam-sundar.S-k@amd.com> Content-Language: en-US From: Jarkko Nikula In-Reply-To: <20240823141917.692336-4-Shyam-sundar.S-k@amd.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240827_000815_767092_957D33E8 X-CRM114-Status: UNSURE ( 9.49 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org On 8/23/24 5:19 PM, Shyam Sundar S K wrote: > The AMD HCI controller currently only supports PIO mode but exposes DMA > rings to the OS, which leads to the controller being configured in DMA > mode. To address this, add a quirk to avoid configuring the controller in > DMA mode and default to PIO mode. > > Additionally, introduce a generic quirk infrastructure to the mipi-i3c-hci > driver to facilitate seamless future quirk additions. > > Co-developed-by: Krishnamoorthi M > Signed-off-by: Krishnamoorthi M > Co-developed-by: Guruvendra Punugupati > Signed-off-by: Guruvendra Punugupati > Signed-off-by: Shyam Sundar S K > --- > drivers/i3c/master/mipi-i3c-hci/core.c | 8 +++++++- > drivers/i3c/master/mipi-i3c-hci/hci.h | 1 + > 2 files changed, 8 insertions(+), 1 deletion(-) > Reviewed-by: Jarkko Nikula -- linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c