[v3,10/39] PM / devfreq: tegra20: Silence deferred probe error
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Message ID 20200607185530.18113-11-digetx@gmail.com
State Not Applicable, archived
Headers show
Series
  • Introduce memory interconnect for NVIDIA Tegra SoCs
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Commit Message

Dmitry Osipenko June 7, 2020, 6:55 p.m. UTC
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 <digetx@gmail.com>
---
 drivers/devfreq/tegra20-devfreq.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

Patch
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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;
 	}