From patchwork Tue Jun 11 12:30:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Charles Keepax X-Patchwork-Id: 10986817 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 400AF1398 for ; Tue, 11 Jun 2019 12:31:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2FDD6285A2 for ; Tue, 11 Jun 2019 12:31:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 23B5A28789; Tue, 11 Jun 2019 12:31:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AA308285A2 for ; Tue, 11 Jun 2019 12:31:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387751AbfFKMbi (ORCPT ); Tue, 11 Jun 2019 08:31:38 -0400 Received: from mx0b-001ae601.pphosted.com ([67.231.152.168]:32810 "EHLO mx0b-001ae601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728825AbfFKMb1 (ORCPT ); Tue, 11 Jun 2019 08:31:27 -0400 Received: from pps.filterd (m0077474.ppops.net [127.0.0.1]) by mx0b-001ae601.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x5BCTZ9n027522; Tue, 11 Jun 2019 07:31:03 -0500 Authentication-Results: ppops.net; spf=none smtp.mailfrom=ckeepax@opensource.cirrus.com Received: from mail1.cirrus.com (mail1.cirrus.com [141.131.3.20]) by mx0b-001ae601.pphosted.com with ESMTP id 2t09ep3xqj-1; Tue, 11 Jun 2019 07:31:02 -0500 Received: from EDIEX02.ad.cirrus.com (unknown [198.61.84.81]) by mail1.cirrus.com (Postfix) with ESMTP id 4121C611C8C1; Tue, 11 Jun 2019 07:31:02 -0500 (CDT) Received: from EDIEX01.ad.cirrus.com (198.61.84.80) by EDIEX02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1591.10; Tue, 11 Jun 2019 13:31:01 +0100 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by EDIEX01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.1.1591.10 via Frontend Transport; Tue, 11 Jun 2019 13:31:01 +0100 Received: from algalon.ad.cirrus.com (algalon.ad.cirrus.com [198.90.251.122]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 94BE02DB; Tue, 11 Jun 2019 13:31:01 +0100 (BST) From: Charles Keepax To: , CC: , , , , , , , Subject: [PATCH v4 2/7] i2c: acpi: Use available IRQ helper functions Date: Tue, 11 Jun 2019 13:30:56 +0100 Message-ID: <20190611123101.25264-3-ckeepax@opensource.cirrus.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190611123101.25264-1-ckeepax@opensource.cirrus.com> References: <20190611123101.25264-1-ckeepax@opensource.cirrus.com> MIME-Version: 1.0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=2 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1906110085 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Use the available IRQ helper functions, most of the functions have additional helpful side affects like configuring the trigger type of the IRQ. Reviewed-by: Mika Westerberg Signed-off-by: Charles Keepax --- No changes since v3. Apologies Andy but I really can't see a sensible way to split this patch up. I have tried moving the resource_list_for_each_loop into a function in one patch then switching to using acpi_dev_resource_interrupt and i2c_dev_irq_from_resource, but the function is basically a completely different function ie. all the arguments are different and the purpose is different. So it makes no sense, and it is very ping pong. I tried doing the switch to i2c_dev_irq_from_resources as a separate patch which isn't so bad, but feels pointless as it is such a small change, let me know if you really want me to send that version. Basically the switch to the helper function and the use of acpi_dev_resource_interrupt are intrinsically linked, so there isn't really a sensible way to split those up. If you still want some changes I am afraid you will have to be more specific in what you are looking for. Thanks, Charles drivers/i2c/i2c-core-acpi.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c index f1d648962b223..47d5b1c5ec9e0 100644 --- a/drivers/i2c/i2c-core-acpi.c +++ b/drivers/i2c/i2c-core-acpi.c @@ -133,14 +133,25 @@ static int i2c_acpi_do_lookup(struct acpi_device *adev, return 0; } +static int i2c_acpi_add_resource(struct acpi_resource *ares, void *data) +{ + int *irq = data; + struct resource r; + + if (*irq <= 0 && acpi_dev_resource_interrupt(ares, 0, &r)) + *irq = i2c_dev_irq_from_resources(&r, 1); + + return 1; /* No need to add resource to the list */ +} + static int i2c_acpi_get_info(struct acpi_device *adev, struct i2c_board_info *info, struct i2c_adapter *adapter, acpi_handle *adapter_handle) { struct list_head resource_list; - struct resource_entry *entry; struct i2c_acpi_lookup lookup; + int irq = -ENOENT; int ret; memset(&lookup, 0, sizeof(lookup)); @@ -172,16 +183,13 @@ static int i2c_acpi_get_info(struct acpi_device *adev, /* Then fill IRQ number if any */ INIT_LIST_HEAD(&resource_list); - ret = acpi_dev_get_resources(adev, &resource_list, NULL, NULL); + ret = acpi_dev_get_resources(adev, &resource_list, + i2c_acpi_add_resource, &irq); if (ret < 0) return -EINVAL; - resource_list_for_each_entry(entry, &resource_list) { - if (resource_type(entry->res) == IORESOURCE_IRQ) { - info->irq = entry->res->start; - break; - } - } + if (irq > 0) + info->irq = irq; acpi_dev_free_resource_list(&resource_list);