[PATCH 2/3] USB: host: ohci-at91: suspend: delay needed before to stop clocks
From: Nicolas Ferre
Date: Wed Sep 11 2019 - 02:42:36 EST
In order to completely remove marginal power consumption in PM suspend,
we need to let the controller settle down before being stopped.
In ohci_hcd_at91_drv_suspend() function, one additional delay is needed before
to stop the clocks.
Reported-by: Boris Krasnovskiy <Boris.Krasnovskiy@xxxxxxxxxxxxxxxx>
Signed-off-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx>
drivers/usb/host/ohci-at91.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index cb63bcd5049a..85d67fe42d59 100644
@@ -628,6 +628,7 @@ ohci_hcd_at91_drv_suspend(struct device *dev)
/* flush the writes */
(void) ohci_readl (ohci, &ohci->regs->control);