On Mon, Dec 09, 2013 at 09:20:08PM +0300, Sergei Shtylyov wrote: > Hello. > > On 12/09/2013 09:31 AM, Peter Chen wrote: > > >After clear portsc.phcd, PHY needs 200us stable time for switch > >32K clock to AHB clock. > > >Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx> > >--- > > drivers/usb/phy/phy-mxs-usb.c | 11 +++++++++++ > > 1 files changed, 11 insertions(+), 0 deletions(-) > > >diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c > >index e18fdf3..7ae5225 100644 > >--- a/drivers/usb/phy/phy-mxs-usb.c > >+++ b/drivers/usb/phy/phy-mxs-usb.c > >@@ -151,6 +151,15 @@ static inline bool is_imx6sl_phy(struct mxs_phy *mxs_phy) > > return mxs_phy->data == &imx6sl_phy_data; > > } > > > >+/* > >+ * PHY needs some 32K cycles to switch from 32K clock to > >+ * bus (such as AHB/AXI, etc) clock. > >+ */ > >+static void mxs_phy_clock_switch(void) > >+{ > >+ usleep_range(300, 400); > >+} > >+ > > Don't think this is a good name for this function since it > doesn't really switch anything, just waits. I'd suggest something > like mxs_phy_clock_switch_delay(). > Thanks, I will change. -- Best Regards, Peter Chen -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html