From patchwork Thu Sep 8 15:24:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Farber, Eliav" X-Patchwork-Id: 12970280 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 06C1FC54EE9 for ; Thu, 8 Sep 2022 15:40:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230338AbiIHPkq (ORCPT ); Thu, 8 Sep 2022 11:40:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58596 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229674AbiIHPkp (ORCPT ); Thu, 8 Sep 2022 11:40:45 -0400 Received: from smtp-fw-80006.amazon.com (smtp-fw-80006.amazon.com [99.78.197.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E74F7E558B; Thu, 8 Sep 2022 08:40:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1662651645; x=1694187645; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=gCBTDuZ06EJrpoaX6MMKmLoFk3Kp6uVeLNuqZ+aw8Uk=; b=IWVF18pE32jTNORnvQx+dNm9A+j+bLYoE3BLWMIdK1JCcrzhPHFMk2of Ow/YDHqaKYCDH/bom4LfCbj4KxDpIQ6MN/Z/pnywuzwVuBQz4aWOYy/Xr jkBN5IHHN99zwCV1sDyAmnx6u97TPldcNK6oN0HMoVb/tG/fJ7hXD2MZy Y=; X-IronPort-AV: E=Sophos;i="5.93,300,1654560000"; d="scan'208";a="128019428" Received: from pdx4-co-svc-p1-lb2-vlan2.amazon.com (HELO email-inbound-relay-iad-1d-1c3c2014.us-east-1.amazon.com) ([10.25.36.210]) by smtp-border-fw-80006.pdx80.corp.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Sep 2022 15:25:12 +0000 Received: from EX13MTAUWB001.ant.amazon.com (iad12-ws-svc-p26-lb9-vlan2.iad.amazon.com [10.40.163.34]) by email-inbound-relay-iad-1d-1c3c2014.us-east-1.amazon.com (Postfix) with ESMTPS id 831773C0023; Thu, 8 Sep 2022 15:25:09 +0000 (UTC) Received: from EX19D013UWB001.ant.amazon.com (10.13.138.52) by EX13MTAUWB001.ant.amazon.com (10.43.161.207) with Microsoft SMTP Server (TLS) id 15.0.1497.38; Thu, 8 Sep 2022 15:24:52 +0000 Received: from EX13MTAUWB001.ant.amazon.com (10.43.161.207) by EX19D013UWB001.ant.amazon.com (10.13.138.52) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.1118.12; Thu, 8 Sep 2022 15:24:52 +0000 Received: from dev-dsk-farbere-1a-46ecabed.eu-west-1.amazon.com (172.19.116.181) by mail-relay.amazon.com (10.43.161.249) with Microsoft SMTP Server id 15.0.1497.38 via Frontend Transport; Thu, 8 Sep 2022 15:24:52 +0000 Received: by dev-dsk-farbere-1a-46ecabed.eu-west-1.amazon.com (Postfix, from userid 14301484) id 8577B4BE6; Thu, 8 Sep 2022 15:24:49 +0000 (UTC) From: Eliav Farber To: , , , , , , , , CC: , , , "Andy Shevchenko" Subject: [PATCH v5 09/21] hwmon: (mr75203) skip reset-control deassert for SOCs that don't support it Date: Thu, 8 Sep 2022 15:24:37 +0000 Message-ID: <20220908152449.35457-10-farbere@amazon.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220908152449.35457-1-farbere@amazon.com> References: <20220908152449.35457-1-farbere@amazon.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org Don't fail the probe function and don't deassert the reset controller if a "reset" property doesn't exist in the device tree. Change is done for SOCs that don't support a reset controller. Signed-off-by: Eliav Farber Reviewed-by: Andy Shevchenko --- V3 -> v2: - Change "reset" property to be optional instead of skipping it. drivers/hwmon/mr75203.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/hwmon/mr75203.c b/drivers/hwmon/mr75203.c index 41e3d3b54baf..19ec9fb91202 100644 --- a/drivers/hwmon/mr75203.c +++ b/drivers/hwmon/mr75203.c @@ -551,14 +551,17 @@ static int mr75203_probe(struct platform_device *pdev) return ret; } - pvt->rst = devm_reset_control_get_exclusive(dev, NULL); + pvt->rst = devm_reset_control_get_optional_exclusive(dev, NULL); if (IS_ERR(pvt->rst)) return dev_err_probe(dev, PTR_ERR(pvt->rst), "failed to get reset control\n"); - ret = pvt_reset_control_deassert(dev, pvt); - if (ret) - return dev_err_probe(dev, ret, "cannot deassert reset control\n"); + if (pvt->rst) { + ret = pvt_reset_control_deassert(dev, pvt); + if (ret) + return dev_err_probe(dev, ret, + "cannot deassert reset control\n"); + } ret = regmap_read(pvt->c_map, PVT_IP_CONFIG, &val); if(ret < 0)