diff options
Diffstat (limited to 'drivers/usb/phy/phy-ulpi-viewport.c')
| -rw-r--r-- | drivers/usb/phy/phy-ulpi-viewport.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/usb/phy/phy-ulpi-viewport.c b/drivers/usb/phy/phy-ulpi-viewport.c index 7a14e0e3b635..0f61e328eaef 100644 --- a/drivers/usb/phy/phy-ulpi-viewport.c +++ b/drivers/usb/phy/phy-ulpi-viewport.c @@ -7,6 +7,7 @@ #include <linux/kernel.h> #include <linux/usb.h> #include <linux/io.h> +#include <linux/iopoll.h> #include <linux/usb/otg.h> #include <linux/usb/ulpi.h> @@ -20,16 +21,9 @@ static int ulpi_viewport_wait(void __iomem *view, u32 mask) { - unsigned long usec = 2000; + u32 val; - while (usec--) { - if (!(readl(view) & mask)) - return 0; - - udelay(1); - } - - return -ETIMEDOUT; + return readl_poll_timeout_atomic(view, val, !(val & mask), 1, 2000); } static int ulpi_viewport_read(struct usb_phy *otg, u32 reg) |