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 0E66DC761AF for ; Fri, 31 Mar 2023 11:56:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231966AbjCaL4F (ORCPT ); Fri, 31 Mar 2023 07:56:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40956 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231968AbjCaL4C (ORCPT ); Fri, 31 Mar 2023 07:56:02 -0400 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EFDD81D2F5; Fri, 31 Mar 2023 04:55:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1680263756; x=1711799756; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=eiULrSJR3I4EWdtPzijN+FavCXWGuJ49goVHT1ldTxA=; b=FSVHaL7GIu7N0xponhWwpqaNqiQUGzr4Onac+Esj02LVlmpNBUBLnPbP 1maWS7ntgvpepUqVsBJmV1D/aJqvMr36ISL2PaoxNEdTrvWDTeZASljzJ oXjtMXT9592k3jqpEiXdFaX2r/lwwUpMfJ1mxYCO+NUgWFJtzLMqh57LV PRm9dKx1exVyEARiln59ZQsaCHAN5/xUewmW/PnH0kYO7bhPZ0rPHf3ym lLWHTy6gPpcNgMOkYEba88x2tkLLLmEIIRY5vswlNe63t14IFBfMLVQhU FQOXT1u7tGep2YfX5DaSWZGE5E7p58anl7X9FLUaFsHYWQ+4zpiWdRoPO A==; X-IronPort-AV: E=McAfee;i="6600,9927,10665"; a="340158675" X-IronPort-AV: E=Sophos;i="5.98,307,1673942400"; d="scan'208";a="340158675" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Mar 2023 04:55:56 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10665"; a="1014794967" X-IronPort-AV: E=Sophos;i="5.98,307,1673942400"; d="scan'208";a="1014794967" Received: from unknown (HELO [10.237.72.51]) ([10.237.72.51]) by fmsmga005.fm.intel.com with ESMTP; 31 Mar 2023 04:55:54 -0700 Message-ID: Date: Fri, 31 Mar 2023 14:55:53 +0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0 Thunderbird/102.9.0 Subject: Re: [PATCH v7 6/6] i2c: designware: Add doorbell support for Mendocino Content-Language: en-US To: Mario Limonciello , =?UTF-8?B?SmFuIETEhWJyb8Wb?= , Grzegorz Bernacki , Mark Hasemeyer , Andy Shevchenko , Mika Westerberg Cc: Felix Held , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org References: <20230329220753.7741-1-mario.limonciello@amd.com> <20230329220753.7741-7-mario.limonciello@amd.com> From: Jarkko Nikula In-Reply-To: <20230329220753.7741-7-mario.limonciello@amd.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/30/23 01:07, Mario Limonciello wrote: > Mendocino and later platform don't use the platform feature mailbox for > communication for I2C arbitration, they rely upon ringing a doorbell. > > Detect the platform by the device ID of the root port and choose the > appropriate method. > > Link: https://lore.kernel.org/linux-i2c/20220916131854.687371-3-jsd@semihalf.com/ > Signed-off-by: Mario Limonciello > --- > v6->v7: > * Add missing pci_dev_put() > * s/mendocino/doorbell/ > v5->v6: > * Handle Mendocino busy code like Cezanne > v4->v5: > * Poll for busy > * Rename to mendocino > * Add explicit dependency on PCI > v3->v4: > * Adjust to use PCI device ID and function pointers instead > v2->v3: > * Use CPU ID rather than ACPI ID, this will be pushed to a later patch > v1->v2: > * New patch > --- > drivers/i2c/busses/Kconfig | 1 + > drivers/i2c/busses/i2c-designware-amdpsp.c | 26 +++++++++++++++++++++- > 2 files changed, 26 insertions(+), 1 deletion(-) > Acked-by: Jarkko Nikula