From patchwork Tue Jun 6 02:25:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wu, Wentong" X-Patchwork-Id: 13268189 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 7934BC7EE23 for ; Tue, 6 Jun 2023 02:25:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234015AbjFFCZx (ORCPT ); Mon, 5 Jun 2023 22:25:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52978 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229556AbjFFCZw (ORCPT ); Mon, 5 Jun 2023 22:25:52 -0400 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 685D5116 for ; Mon, 5 Jun 2023 19:25:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1686018351; x=1717554351; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=JmlVsdU3JwPtMvchUp6p4gL42tdOeIS/+xhJUdhf9cE=; b=AZYok3LLpMgZ2mxBq9dOBlLbjvF/c9y3B7HgjY7oNx1XMst7zs5xbRye 4SAHu191/FSoY1FF/ei4djXUJm2msGLuDJylGlFHXMpUclnJIY4oW5pXK vlsVYqNjnPWkNRm7lXljcy4XJ9WPb/PW6ExuBEup+F1ds5REJwdOVOL8P 5Bqin4mGwwt9DwTlm0cZPfGG2DQtfzM4a9zOwS5WJFLJr0ZTw5pzFxFNP szojDhMH8rj+YELwdbaZOyF/mSoY0n96meMSerK3t4AXPum9QRTnaQiKs dCXKz/zzicP+TzYSFSvXPQEebxYyp/RWBMqcw6GWHSIaZ9Boq7VMLzQc1 Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10732"; a="336163092" X-IronPort-AV: E=Sophos;i="6.00,219,1681196400"; d="scan'208";a="336163092" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Jun 2023 19:25:51 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10732"; a="738579023" X-IronPort-AV: E=Sophos;i="6.00,219,1681196400"; d="scan'208";a="738579023" Received: from shsensorbuild2.sh.intel.com ([10.239.134.197]) by orsmga008.jf.intel.com with ESMTP; 05 Jun 2023 19:25:48 -0700 From: Wentong Wu To: sakari.ailus@linux.intel.com, hdegoede@redhat.com, djrscally@gmail.com, laurent.pinchart@ideasonboard.com, linux-media@vger.kernel.org Cc: zhifeng.wang@intel.com, xiang.ye@intel.com, bingbu.cao@linux.intel.com, tian.shu.qiu@intel.com, Wentong Wu Subject: [PATCH v9 3/3] ACPI: delay enumeration of devices with a _DEP pointing to IVSC device Date: Tue, 6 Jun 2023 10:25:32 +0800 Message-Id: <1686018332-7864-4-git-send-email-wentong.wu@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1686018332-7864-1-git-send-email-wentong.wu@intel.com> References: <1686018332-7864-1-git-send-email-wentong.wu@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Inside IVSC, switching ownership requires an interface with two different hardware modules, ACE and CSI. The software interface to these modules is based on Intel MEI framework. Usually mei client devices are dynamically created, so the info of consumers depending on mei client devices is not present in the firmware tables. This causes problems with the probe ordering with respect to drivers for consumers of these mei client devices. But on these camera sensor devices, the ACPI nodes describing the sensors all have a _DEP dependency on the matching mei bus ACPI device, so adding IVSC mei bus ACPI device to acpi_honor_dep_ids allows solving the probe-ordering problem by delaying the enumeration of ACPI-devices which have a _DEP dependency on an IVSC mei bus ACPI device. On TGL platform, the HID of IVSC mei bus ACPI device is INTC1059, and on ADL platform, the HID is INTC1095. So add both of them to acpi_honor_dep_ids. Signed-off-by: Wentong Wu --- drivers/acpi/scan.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 2743444..04560e8 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -796,6 +796,8 @@ static const char * const acpi_ignore_dep_ids[] = { /* List of HIDs for which we honor deps of matching ACPI devs, when checking _DEP lists. */ static const char * const acpi_honor_dep_ids[] = { "INT3472", /* Camera sensor PMIC / clk and regulator info */ + "INTC1059", /* IVSC (TGL) driver must be loaded to allow i2c access to camera sensors */ + "INTC1095", /* IVSC (ADL) driver must be loaded to allow i2c access to camera sensors */ NULL };