From 6d037db6409c33738c7153e87ae1cf682ca2851b Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Wed, 26 Nov 2014 13:44:27 +0800 Subject: [PATCH] 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 Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/core.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index cde3d24..d87caea 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -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) -- 2.7.4