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 X-Spam-Level: X-Spam-Status: No, score=-15.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 842D5C49EA5 for ; Thu, 24 Jun 2021 20:24:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 54AAC613BA for ; Thu, 24 Jun 2021 20:24:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229525AbhFXU0X (ORCPT ); Thu, 24 Jun 2021 16:26:23 -0400 Received: from mxout03.lancloud.ru ([45.84.86.113]:34432 "EHLO mxout03.lancloud.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229464AbhFXU0W (ORCPT ); Thu, 24 Jun 2021 16:26:22 -0400 Received: from LanCloud DKIM-Filter: OpenDKIM Filter v2.11.0 mxout03.lancloud.ru 5718420D926F Received: from LanCloud Received: from LanCloud Received: from LanCloud Subject: [PATCH v2 2/3] i2c: pca-platform: fix deferred probing From: Sergey Shtylyov To: References: Organization: Open Mobile Platform Message-ID: <67f7fcd8-797f-b943-02f7-38a0685e96f9@omp.ru> Date: Thu, 24 Jun 2021 23:23:48 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.11.198] X-ClientProxiedBy: LFEXT01.lancloud.ru (fd00:f066::141) To LFEX1907.lancloud.ru (fd00:f066::207) Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org The driver's probe() method chooses the polling mode if an IRQ # returned by platform_get_irq_optional() is 0 or less. We'll have to filter out -EPROBE_DEFER earlier for the deferred probing to work... Fixes: 0e8ce93bdceb ("i2c: pca-platform: add devicetree awareness") Signed-off-by: Sergey Shtylyov --- Changed in version 2: - new patch. drivers/i2c/busses/i2c-pca-platform.c | 2 ++ 1 file changed, 2 insertions(+) Index: linux/drivers/i2c/busses/i2c-pca-platform.c =================================================================== --- linux.orig/drivers/i2c/busses/i2c-pca-platform.c +++ linux/drivers/i2c/busses/i2c-pca-platform.c @@ -139,6 +139,8 @@ static int i2c_pca_pf_probe(struct platf int irq; irq = platform_get_irq_optional(pdev, 0); + if (irq == -EPROBE_DEFER) + return irq; /* If irq is 0, we do polling. */ if (irq < 0) irq = 0;