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 8D6F8C25B06 for ; Tue, 9 Aug 2022 08:33:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240615AbiHIIdN convert rfc822-to-8bit (ORCPT ); Tue, 9 Aug 2022 04:33:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37744 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240542AbiHIIdK (ORCPT ); Tue, 9 Aug 2022 04:33:10 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 30EC5201B2 for ; Tue, 9 Aug 2022 01:33:10 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oLKfR-0006K1-7S; Tue, 09 Aug 2022 10:32:49 +0200 Received: from [2a0a:edc0:0:900:1d::4e] (helo=lupine) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1oLKfM-002fas-63; Tue, 09 Aug 2022 10:32:46 +0200 Received: from pza by lupine with local (Exim 4.94.2) (envelope-from ) id 1oLKfN-0001Qi-La; Tue, 09 Aug 2022 10:32:45 +0200 Message-ID: Subject: Re: [PATCH 2/3] ASoC: apple: mca: Start new platform driver From: Philipp Zabel To: Martin =?UTF-8?Q?Povi=C5=A1er?= , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Jaroslav Kysela , Takashi Iwai Cc: asahi@lists.linux.dev, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Date: Tue, 09 Aug 2022 10:32:45 +0200 In-Reply-To: <20220808224153.3634-3-povik+lin@cutebit.org> References: <20220808224153.3634-1-povik+lin@cutebit.org> <20220808224153.3634-3-povik+lin@cutebit.org> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT User-Agent: Evolution 3.38.3-1 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: p.zabel@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Martin, On Di, 2022-08-09 at 00:41 +0200, Martin PoviĊĦer wrote: > + mca->rstc = devm_reset_control_get_shared(&pdev->dev, NULL); > + if (IS_ERR(mca->rstc)) { > + dev_dbg(&pdev->dev, "couldn't obtain reset control: %pe\n", mca->rstc); > + mca->rstc = NULL; > + } Please don't ignore errors, this could be -ENOMEM. For optional resets, use devm_reset_control_get_optional_shared(), which returns NULL if there is no resets property in the device tree. regards Philipp