Re: [PATCH v6 6/6] PCI: uniphier: Add error message when failed to get phy
From: Rob Herring <robh+dt@kernel.org>
Date: 2020-08-17 17:22:37
Also in:
linux-devicetree, linux-pci, lkml
On Fri, Aug 7, 2020 at 4:25 AM Kunihiko Hayashi [off-list ref] wrote:
quoted hunk ↗ jump to hunk
Even if phy driver doesn't probe, the error message can't be distinguished from other errors. This displays error message caused by the phy driver explicitly. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> --- drivers/pci/controller/dwc/pcie-uniphier.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)diff --git a/drivers/pci/controller/dwc/pcie-uniphier.c b/drivers/pci/controller/dwc/pcie-uniphier.c index 93ef608..7c8721e 100644 --- a/drivers/pci/controller/dwc/pcie-uniphier.c +++ b/drivers/pci/controller/dwc/pcie-uniphier.c@@ -489,8 +489,12 @@ static int uniphier_pcie_probe(struct platform_device *pdev) return PTR_ERR(priv->rst); priv->phy = devm_phy_optional_get(dev, "pcie-phy");
The point of the optional variant vs. devm_phy_get() is whether or not you get an error message. So shouldn't you switch to devm_phy_get instead?
- if (IS_ERR(priv->phy))
- return PTR_ERR(priv->phy);
+ if (IS_ERR(priv->phy)) {
+ ret = PTR_ERR(priv->phy);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to get phy (%d)\n", ret);
+ return ret;
+ }
platform_set_drvdata(pdev, priv);
--
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