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usb: chipidea: remove the unnecessary delay after clear portsc.phcd 

The individual PHY driver should take this responsibility if it
needs to delay between clear portsc.phcd and let the phy leave
low power mode.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Chen 2014-11-26 13:44:27 +08:00 committed by Greg Kroah-Hartman
parent 4a1d6cf156
commit 6d037db640
1 changed files with 2 additions and 8 deletions
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10
drivers/usb/chipidea/core.c
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@ -196,18 +196,12 @@ static void ci_hdrc_enter_lpm(struct ci_hdrc *ci, bool enable)
enum ci_hw_regs reg = ci->hw_bank.lpm ? OP_DEVLC : OP_PORTSC;
bool lpm = !!(hw_read(ci, reg, PORTSC_PHCD(ci->hw_bank.lpm)));
if (enable && !lpm) {
if (enable && !lpm)
hw_write(ci, reg, PORTSC_PHCD(ci->hw_bank.lpm),
PORTSC_PHCD(ci->hw_bank.lpm));
} else if (!enable && lpm) {
else if (!enable && lpm)
hw_write(ci, reg, PORTSC_PHCD(ci->hw_bank.lpm),
0);
/*
* the PHY needs some time (less
* than 1ms) to leave low power mode.
*/
usleep_range(1000, 1100);
}
}
static int hw_device_init(struct ci_hdrc *ci, void __iomem *base)