[PATCH v5 15/15] usb: phy-mxs: Add sync time after controller clear phcd

[Peter Chen]

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 at freescale.com>
> >---
> >  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