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path: root/drivers/usb/early/xhci-dbc.c
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Diffstat (limited to 'drivers/usb/early/xhci-dbc.c')
-rw-r--r--drivers/usb/early/xhci-dbc.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c
index 933d77ad0a64..4502108069cd 100644
--- a/drivers/usb/early/xhci-dbc.c
+++ b/drivers/usb/early/xhci-dbc.c
@@ -14,7 +14,6 @@
#include <linux/pci_ids.h>
#include <linux/memblock.h>
#include <linux/io.h>
-#include <linux/iopoll.h>
#include <asm/pci-direct.h>
#include <asm/fixmap.h>
#include <linux/bcd.h>
@@ -136,9 +135,17 @@ static int handshake(void __iomem *ptr, u32 mask, u32 done, int wait, int delay)
{
u32 result;
- return readl_poll_timeout_atomic(ptr, result,
- ((result & mask) == done),
- delay, wait);
+ /* Can not use readl_poll_timeout_atomic() for early boot things */
+ do {
+ result = readl(ptr);
+ result &= mask;
+ if (result == done)
+ return 0;
+ udelay(delay);
+ wait -= delay;
+ } while (wait > 0);
+
+ return -ETIMEDOUT;
}
static void __init xdbc_bios_handoff(void)