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 93F1CEB64D8 for ; Wed, 21 Jun 2023 09:32:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229818AbjFUJco (ORCPT ); Wed, 21 Jun 2023 05:32:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34892 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231363AbjFUJbc (ORCPT ); Wed, 21 Jun 2023 05:31:32 -0400 Received: from mail-wm1-x329.google.com (mail-wm1-x329.google.com [IPv6:2a00:1450:4864:20::329]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A88E19B7 for ; Wed, 21 Jun 2023 02:31:17 -0700 (PDT) Received: by mail-wm1-x329.google.com with SMTP id 5b1f17b1804b1-3f9b4bf99c2so24710655e9.3 for ; Wed, 21 Jun 2023 02:31:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20221208.gappssmtp.com; s=20221208; t=1687339876; x=1689931876; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=iCNYj/86/5sdpI0dqVl7psoKKhFSLSkxZDdeHiB+vfs=; b=zKBvUDeuh/AFGKGg1KW0cPS/Z+YJwgyTetO5WMcCNXlsdpA6DjdA+JCVw45yfuzOQ7 +ggePlPV3BBZnFVirubbyFlazU9n8ZAQj0zkNJ/DD+8+2atf/UTfto6Um/z+4M4Zq6B9 EjBubPtKj/umzTqO5cGA7NrHohxZE4BCTl1MBpXkc8BnPRZwr9YUtV/s4CYuyxjCbokc P5vyN9h0L5kRalzYsd99rB177VmsDdNE8fI4EFcRb8+b6tJOlJ8DZiTvy3pnH0pRaWcZ tHRdrkMTSwHYtYfyih96fQ+/L8iuf0mZH0mZ5GaI7ysumftvk8TaZMPd5kO9ke+Ysz0U X8aA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687339876; x=1689931876; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=iCNYj/86/5sdpI0dqVl7psoKKhFSLSkxZDdeHiB+vfs=; b=RyXwd6XbaRXzwrsnPgkhpt0XgQps+dI+1jUDZc8zPjxp+4UItFnIdzguL1FCRM28SW N6tBcw1wvG7nUz3HNmvLvJSZmbaQogmEqy7pVSkjto6wfrlxSalCRRAEEi9WsTPUyEeg 2b+F1oPQtvpffTy3ftGb041gQ8kLdKnOQrfGbtmFfqWzrvrjzUetZGPxWaHHw0OciAyQ f1M+QwF5p61G1fhARpYyUG45ObbXtaLrLlYIwSRf6WwAN4RuOcBnaXqe2etPvpXCJyr5 R9TIPUbztyKXNc0XnhES/mhrqhsKvz5nCTnrSAGnwvYmLwreo3sAuyEg/aLPDNRjt3OR Z1eg== X-Gm-Message-State: AC+VfDzx3zvYSMTBnxRKYrqJecn3Mu7TnRFlAlNyvYh8Ys67MOZAcFSj n3bAAVahoi/nT1eh0tn/c2nV6g== X-Google-Smtp-Source: ACHHUZ7UtUgNUTqAfGOg4L/0CMP4+0xc+qarTvVyytZqEa5kddJf6P2sJTX0FK96SnjlHw6+Bk3Cpg== X-Received: by 2002:a05:600c:248:b0:3f9:b3b4:4367 with SMTP id 8-20020a05600c024800b003f9b3b44367mr5036089wmj.15.1687339875812; Wed, 21 Jun 2023 02:31:15 -0700 (PDT) Received: from blmsp.fritz.box ([2001:4091:a247:82fa:b762:4f68:e1ed:5041]) by smtp.gmail.com with ESMTPSA id t10-20020a5d49ca000000b002fe96f0b3acsm3977344wrs.63.2023.06.21.02.31.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Jun 2023 02:31:15 -0700 (PDT) From: Markus Schneider-Pargmann To: Wolfgang Grandegger , Marc Kleine-Budde , Rob Herring , Krzysztof Kozlowski Cc: "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Conor Dooley , Chandrasekar Ramakrishnan , Michal Kubiak , Vivek Yadav , linux-can@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Simon Horman , Markus Schneider-Pargmann Subject: [PATCH v2 6/6] can: tcan4x5x: Add error messages in probe Date: Wed, 21 Jun 2023 11:31:03 +0200 Message-Id: <20230621093103.3134655-7-msp@baylibre.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230621093103.3134655-1-msp@baylibre.com> References: <20230621093103.3134655-1-msp@baylibre.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org To be able to understand issues during probe easier, add error messages if something fails. Signed-off-by: Markus Schneider-Pargmann --- drivers/net/can/m_can/tcan4x5x-core.c | 26 ++++++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-) diff --git a/drivers/net/can/m_can/tcan4x5x-core.c b/drivers/net/can/m_can/tcan4x5x-core.c index 756acd122075..e30faa1cf893 100644 --- a/drivers/net/can/m_can/tcan4x5x-core.c +++ b/drivers/net/can/m_can/tcan4x5x-core.c @@ -397,6 +397,8 @@ static int tcan4x5x_can_probe(struct spi_device *spi) /* Sanity check */ if (freq < 20000000 || freq > TCAN4X5X_EXT_CLK_DEF) { + dev_err(&spi->dev, "Clock frequency is out of supported range %d\n", + freq); ret = -ERANGE; goto out_m_can_class_free_dev; } @@ -415,32 +417,44 @@ static int tcan4x5x_can_probe(struct spi_device *spi) /* Configure the SPI bus */ spi->bits_per_word = 8; ret = spi_setup(spi); - if (ret) + if (ret) { + dev_err(&spi->dev, "SPI setup failed %d\n", ret); goto out_m_can_class_free_dev; + } ret = tcan4x5x_regmap_init(priv); - if (ret) + if (ret) { + dev_err(&spi->dev, "regmap init failed %d\n", ret); goto out_m_can_class_free_dev; + } ret = tcan4x5x_power_enable(priv->power, 1); - if (ret) + if (ret) { + dev_err(&spi->dev, "Enabling regulator failed %d\n", ret); goto out_m_can_class_free_dev; + } ret = tcan4x5x_verify_version(priv, &version_info); if (ret) goto out_power; ret = tcan4x5x_get_gpios(mcan_class, version_info); - if (ret) + if (ret) { + dev_err(&spi->dev, "Getting gpios failed %d\n", ret); goto out_power; + } ret = tcan4x5x_init(mcan_class); - if (ret) + if (ret) { + dev_err(&spi->dev, "tcan initialization failed %d\n", ret); goto out_power; + } ret = m_can_class_register(mcan_class); - if (ret) + if (ret) { + dev_err(&spi->dev, "Failed registering m_can device %d\n", ret); goto out_power; + } netdev_info(mcan_class->net, "TCAN4X5X successfully initialized.\n"); return 0; -- 2.40.1