From: mpa@pengutronix.de (Markus Pargmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] usb: ci_hdrc_imx: Return -EINVAL for missing USB PHY
Date: Tue, 8 Jul 2014 12:14:40 +0200 [thread overview]
Message-ID: <1404814481-7652-1-git-send-email-mpa@pengutronix.de> (raw)
-ENODEV is interpreted by the generic driver probing function as a
non-matching driver. This leads to a missing probe failure message.
Also a missing USB PHY is more of an invalid configuration of the usb
driver because it is necessary.
This patch returns -EINVAL if devm_usb_get_phy_by_phandle() returned -ENODEV.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
---
drivers/usb/chipidea/ci_hdrc_imx.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index 2e58f8dfd311..65444b02bd68 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -133,6 +133,9 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
data->phy = devm_usb_get_phy_by_phandle(&pdev->dev, "fsl,usbphy", 0);
if (IS_ERR(data->phy)) {
ret = PTR_ERR(data->phy);
+ /* Return -EINVAL if no usbphy is available */
+ if (ret == -ENODEV)
+ ret = -EINVAL;
goto err_clk;
}
--
2.0.0
next reply other threads:[~2014-07-08 10:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-08 10:14 Markus Pargmann [this message]
2014-07-08 10:14 ` [PATCH 2/2] usb: ci_hdrc_imx doc: fsl,usbphy is required Markus Pargmann
2014-07-08 16:28 ` Sergei Shtylyov
2014-07-09 7:26 ` Markus Pargmann
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