On 07/25/2013 08:26 PM, Ivan T. Ivanov wrote:
From: "Ivan T. Ivanov" <iivanov@xxxxxxxxxx>
When deferred probe happens driver will try to ioremap multiple times
and will fail. Memory resource.start variable is a global variable,
modifications in this field will be accumulated on every probe.
Fix this by moving the above operations after driver hold all
required PHY's.
Signed-off-by: Ivan T. Ivanov <iivanov@xxxxxxxxxx>
---
drivers/usb/dwc3/core.c | 31 ++++++++++++++++---------------
1 file changed, 16 insertions(+), 15 deletions(-)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 607bef8..50c833f 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
[...]
@@ -452,6 +437,22 @@ static int dwc3_probe(struct platform_device *pdev)
return -EPROBE_DEFER;
}
+ dwc->xhci_resources[0].start = res->start;
+ dwc->xhci_resources[0].end = dwc->xhci_resources[0].start +
+ DWC3_XHCI_REGS_END;
+ dwc->xhci_resources[0].flags = res->flags;
+ dwc->xhci_resources[0].name = res->name;
+
+ res->start += DWC3_GLOBALS_REGS_START;
+
+ /*
+ * Request memory region but exclude xHCI regs,
+ * since it will be requested by the xhci-plat driver.
+ */
Please remove an extra space after a tab on each comment line.
It seems like a good time to do it, while you're moving this code.
+ regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(regs))
+ return PTR_ERR(regs);
+
WBR, Sergei
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