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| author | Jeremy Linton <jeremy.linton@arm.com> | 2015-08-20 00:36:31 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-04 12:47:13 +0300 |
| commit | 17f69b5fa6f642898a7dae16dee6997869b1f234 (patch) | |
| tree | 48c1d50df6f3646a90f70e7e387e1b6de90c1482 | |
| parent | 39047e0702c003d2c4cc1d493d7823407a96e1f5 (diff) | |
| download | linux-17f69b5fa6f642898a7dae16dee6997869b1f234.tar.xz | |
USB: ehci-platform: Display a DMA configuration error message
If the ehci driver fails to configure the dma settings then display
a dev error instead of simply failing. This is triggered in an
ACPI world if the user fails to set the _CCA on the device.
Tested-by: Huang Shijie <shijie.huang@arm.com>
Reviewed-by: Graeme Gregory <graeme.gregory@linaro.org>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/host/ehci-platform.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index 5c3c08598682..d9144d5ab794 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -162,8 +162,10 @@ static int ehci_platform_probe(struct platform_device *dev) err = dma_coerce_mask_and_coherent(&dev->dev, pdata->dma_mask_64 ? DMA_BIT_MASK(64) : DMA_BIT_MASK(32)); - if (err) + if (err) { + dev_err(&dev->dev, "Error: DMA mask configuration failed\n"); return err; + } irq = platform_get_irq(dev, 0); if (irq < 0) { |