diff options
Diffstat (limited to 'drivers/usb/early/xhci-dbc.c')
| -rw-r--r-- | drivers/usb/early/xhci-dbc.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c index c0507767a8e3..be4ecbabdd58 100644 --- a/drivers/usb/early/xhci-dbc.c +++ b/drivers/usb/early/xhci-dbc.c @@ -14,6 +14,7 @@ #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> @@ -135,16 +136,9 @@ static int handshake(void __iomem *ptr, u32 mask, u32 done, int wait, int delay) { u32 result; - do { - result = readl(ptr); - result &= mask; - if (result == done) - return 0; - udelay(delay); - wait -= delay; - } while (wait > 0); - - return -ETIMEDOUT; + return readl_poll_timeout_atomic(ptr, result, + ((result & mask) == done), + delay, wait); } static void __init xdbc_bios_handoff(void) |