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[109.252.170.211]) by smtp.gmail.com with ESMTPSA id c17sm1504450lfr.23.2020.08.13.17.07.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Aug 2020 17:07:11 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Georgi Djakov , Rob Herring , Michael Turquette , Stephen Boyd , Peter De Schrijver , MyungJoo Ham , Kyungmin Park , Chanwoo Choi , Mikko Perttunen Cc: linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [PATCH v5 10/36] PM / devfreq: tegra20: Silence deferred probe error Date: Fri, 14 Aug 2020 03:05:55 +0300 Message-Id: <20200814000621.8415-11-digetx@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200814000621.8415-1-digetx@gmail.com> References: <20200814000621.8415-1-digetx@gmail.com> MIME-Version: 1.0 Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org Tegra EMC driver was turned into a regular kernel driver, it also could be compiled as a loadable kernel module now. Hence EMC clock isn't guaranteed to be available and clk_get("emc") may return -EPROBE_DEFER and there is no good reason to spam KMSG with a error about missing EMC clock in this case, so let's silence the deferred probe error. Acked-by: Chanwoo Choi Signed-off-by: Dmitry Osipenko --- drivers/devfreq/tegra20-devfreq.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/devfreq/tegra20-devfreq.c b/drivers/devfreq/tegra20-devfreq.c index ff82bac9ee4e..6469dc69c5e0 100644 --- a/drivers/devfreq/tegra20-devfreq.c +++ b/drivers/devfreq/tegra20-devfreq.c @@ -141,9 +141,11 @@ static int tegra_devfreq_probe(struct platform_device *pdev) /* EMC is a system-critical clock that is always enabled */ tegra->emc_clock = devm_clk_get(&pdev->dev, "emc"); - if (IS_ERR(tegra->emc_clock)) { - err = PTR_ERR(tegra->emc_clock); - dev_err(&pdev->dev, "failed to get emc clock: %d\n", err); + err = PTR_ERR_OR_ZERO(tegra->emc_clock); + if (err) { + if (err != -EPROBE_DEFER) + dev_err(&pdev->dev, "failed to get emc clock: %d\n", + err); return err; }