linux-kernel - [PATCH 5/5] PCI: uniphier: Add error message when failed to get phy

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Message-Id: <1589518105-18368-6-git-send-email-hayashi.kunihiko@socionext.com>
Date:   Fri, 15 May 2020 13:48:25 +0900
From:   Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
To:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Jingoo Han <jingoohan1@...il.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Rob Herring <robh+dt@...nel.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Masami Hiramatsu <masami.hiramatsu@...aro.org>,
        Jassi Brar <jaswinder.singh@...aro.org>,
        Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
Subject: [PATCH 5/5] PCI: uniphier: Add error message when failed to get phy

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@...ionext.com>
---
 drivers/pci/controller/dwc/pcie-uniphier.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pcie-uniphier.c b/drivers/pci/controller/dwc/pcie-uniphier.c
index 6180d50..2bcf394 100644
--- a/drivers/pci/controller/dwc/pcie-uniphier.c
+++ b/drivers/pci/controller/dwc/pcie-uniphier.c
@@ -480,8 +480,10 @@ static int uniphier_pcie_probe(struct platform_device *pdev)
 		return PTR_ERR(priv->rst);
 
 	priv->phy = devm_phy_optional_get(dev, "pcie-phy");
-	if (IS_ERR(priv->phy))
+	if (IS_ERR(priv->phy)) {
+		dev_err(dev, "Failed to get phy (%d)\n", PTR_ERR(priv->phy));
 		return PTR_ERR(priv->phy);
+	}
 
 	platform_set_drvdata(pdev, priv);
 
-- 
2.7.4