According to Documentation/timers/timers-howto.txt, a driver should
use usleep_range() instead of udelay() on NON-ATOMIC CONTEXT if
"SLEEPING FOR ~USECS OR SMALL MSECS ( 10us - 20ms)".
Since the .hardware_init() and .power_ctrl() will run on NON-ATOMIC
CONTEXT, this patch replaces udelay() with usleep_range().
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
if (enable) {
usbhs_bset(priv, LPSTS, LPSTS_SUSPM, LPSTS_SUSPM);
/* The controller on R-Car Gen3 needs to wait up to 45 usec */
- udelay(45);
+ usleep_range(45, 90);
} else {
usbhs_bset(priv, LPSTS, LPSTS_SUSPM, 0);
}
/* Enable USB PLL (NOTE: ch0 controls both ch0 and ch1) */
usbhs_bset(priv, SYSCFG, UPLLE, UPLLE);
- udelay(1000);
+ usleep_range(1000, 2000);
usbhs_bset(priv, SUSPMODE, SUSPM, SUSPM);
return 0;