Re: [PATCH v3] drivers/usb/host/ehci-fsl: Fix interrupt setup in host mode.

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On 02 July 2022 at 11:03 pm, Darren Stevens wrote:
In patch a1a2b7125e10 (Drop static setup of IRQ resource from DT
core) we stopped platform_get_resource() from returning the IRQ, as all
drivers were supposed to have switched to platform_get_irq()
Unfortunately the Freescale EHCI driver in host mode got missed. Fix
it.

Fixes: a1a2b7125e10 (Drop static setup of IRQ resource from DT core)
Reported-by: Christian Zigotzky <chzigotzky@xxxxxxxxxxx>
Suggested-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Darren Stevens <darren@xxxxxxxxxxxxxxxx>
---
  v3 - Corrected resource allocation in fsl-mph-dr-of.c

  v2 - Fixed coding style, removed a couple of unneeded initializations,
       cc'd Layerscape maintainers.

Tested on AmigaOne X5000/20 and X5000/40 Contains code by Rob Herring
(in fsl-mph-dr-of.c)

diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 385be30..896c0d1 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -76,14 +76,9 @@ static int fsl_ehci_drv_probe(struct platform_device *pdev)
  		return -ENODEV;
  	}
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!res) {
-		dev_err(&pdev->dev,
-			"Found HC with no IRQ. Check %s setup!\n",
-			dev_name(&pdev->dev));
-		return -ENODEV;
-	}
-	irq = res->start;
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
hcd = __usb_create_hcd(&fsl_ehci_hc_driver, pdev->dev.parent,
  			       &pdev->dev, dev_name(&pdev->dev), NULL);
diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c
index 44a7e58..e5df175 100644
--- a/drivers/usb/host/fsl-mph-dr-of.c
+++ b/drivers/usb/host/fsl-mph-dr-of.c
@@ -112,6 +112,9 @@ static struct platform_device *fsl_usb2_device_register(
  			goto error;
  	}
+ pdev->dev.of_node = ofdev->dev.of_node;
+	pdev->dev.of_node_reused = true;
+
  	retval = platform_device_add(pdev);
  	if (retval)
  		goto error;
Hello,

I patched the RC5 of kernel 5.19 with this patch and I can confirm, that my keyboard and mouse work without any problems.

Tested-by: Christian Zigotzky <chzigotzky@xxxxxxxxxxx>

Please accept this patch.

Thanks,
Christian



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