diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/usb/host/pci-quirks.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index c32b544c043a..ef08d68b9714 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -17,6 +17,7 @@ #include <linux/acpi.h> #include <linux/dmi.h> #include <linux/of.h> +#include <linux/iopoll.h> #include "pci-quirks.h" #include "xhci-ext-caps.h" @@ -1012,15 +1013,9 @@ static int handshake(void __iomem *ptr, u32 mask, u32 done, { u32 result; - do { - result = readl(ptr); - result &= mask; - if (result == done) - return 0; - udelay(delay_usec); - wait_usec -= delay_usec; - } while (wait_usec > 0); - return -ETIMEDOUT; + return readl_poll_timeout_atomic(ptr, result, + ((result & mask) == done), + delay_usec, wait_usec); } /* |