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usb: dwc3: Switch to platform_get_irq_byname_optional() 

The dwc3 code to get the "peripheral" / "host" / "otg" IRQ first tries
platform_get_irq_byname() and then falls back to the IRQ at index 0 if
the platform_get_irq_byname().

In this case we do not want platform_get_irq_byname() to print an error
on failure, so switch to platform_get_irq_byname_optional() instead which
does not print an error.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205037
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Link: https://lore.kernel.org/r/20191005210449.3926-3-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hans de Goede 2019-10-05 23:04:48 +02:00 committed by Greg Kroah-Hartman
parent f1da567f1d
commit f146b40ba1
3 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/usb/dwc3/drd.c
View File

@ -139,14 +139,14 @@ static int dwc3_otg_get_irq(struct dwc3 *dwc)
struct platform_device *dwc3_pdev = to_platform_device(dwc->dev);
int irq;
irq = platform_get_irq_byname(dwc3_pdev, "otg");
irq = platform_get_irq_byname_optional(dwc3_pdev, "otg");
if (irq > 0)
goto out;
if (irq == -EPROBE_DEFER)
goto out;
irq = platform_get_irq_byname(dwc3_pdev, "dwc_usb3");
irq = platform_get_irq_byname_optional(dwc3_pdev, "dwc_usb3");
if (irq > 0)
goto out;

4
drivers/usb/dwc3/gadget.c
View File

@ -3264,14 +3264,14 @@ static int dwc3_gadget_get_irq(struct dwc3 *dwc)
struct platform_device *dwc3_pdev = to_platform_device(dwc->dev);
int irq;
irq = platform_get_irq_byname(dwc3_pdev, "peripheral");
irq = platform_get_irq_byname_optional(dwc3_pdev, "peripheral");
if (irq > 0)
goto out;
if (irq == -EPROBE_DEFER)
goto out;
irq = platform_get_irq_byname(dwc3_pdev, "dwc_usb3");
irq = platform_get_irq_byname_optional(dwc3_pdev, "dwc_usb3");
if (irq > 0)
goto out;

4
drivers/usb/dwc3/host.c
View File

@ -16,14 +16,14 @@ static int dwc3_host_get_irq(struct dwc3 *dwc)
struct platform_device *dwc3_pdev = to_platform_device(dwc->dev);
int irq;
irq = platform_get_irq_byname(dwc3_pdev, "host");
irq = platform_get_irq_byname_optional(dwc3_pdev, "host");
if (irq > 0)
goto out;
if (irq == -EPROBE_DEFER)
goto out;
irq = platform_get_irq_byname(dwc3_pdev, "dwc_usb3");
irq = platform_get_irq_byname_optional(dwc3_pdev, "dwc_usb3");
if (irq > 0)
goto out;