From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Osipenko Subject: [PATCH v3 11/39] PM / devfreq: tegra30: Silence deferred probe error Date: Sun, 7 Jun 2020 21:55:02 +0300 Message-ID: <20200607185530.18113-12-digetx@gmail.com> References: <20200607185530.18113-1-digetx@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20200607185530.18113-1-digetx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org 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: =?UTF-8?q?Artur=20=C5=9Awigo=C5=84?= , linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: 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. Signed-off-by: Dmitry Osipenko --- drivers/devfreq/tegra30-devfreq.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/devfreq/tegra30-devfreq.c b/drivers/devfreq/tegra30-devfreq.c index e94a27804c20..423dd35c95b3 100644 --- a/drivers/devfreq/tegra30-devfreq.c +++ b/drivers/devfreq/tegra30-devfreq.c @@ -801,9 +801,12 @@ static int tegra_devfreq_probe(struct platform_device *pdev) } tegra->emc_clock = devm_clk_get(&pdev->dev, "emc"); - if (IS_ERR(tegra->emc_clock)) { - dev_err(&pdev->dev, "Failed to get emc clock\n"); - return PTR_ERR(tegra->emc_clock); + 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; } err = platform_get_irq(pdev, 0); -- 2.26.0