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

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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)