Implementation of notify_suspend and notify_resume will be different according to mxs_phy_platform_flag->flags. Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx> --- drivers/usb/phy/phy-mxs-usb.c | 54 +++++++++++++++++++++++++++++++++++++--- 1 files changed, 50 insertions(+), 4 deletions(-) diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c index 8cdfbf1..c794011 100644 --- a/drivers/usb/phy/phy-mxs-usb.c +++ b/drivers/usb/phy/phy-mxs-usb.c @@ -161,8 +161,8 @@ static int mxs_phy_suspend(struct usb_phy *x, int suspend) static int mxs_phy_on_connect(struct usb_phy *phy, enum usb_device_speed speed) { - dev_dbg(phy->dev, "%s speed device has connected\n", - (speed == USB_SPEED_HIGH) ? "high" : "non-high"); + dev_dbg(phy->dev, "%s device has connected\n", + (speed == USB_SPEED_HIGH) ? "HS" : "FS/LS"); if (speed == USB_SPEED_HIGH) writel(BM_USBPHY_CTRL_ENHOSTDISCONDETECT, @@ -174,8 +174,8 @@ static int mxs_phy_on_connect(struct usb_phy *phy, static int mxs_phy_on_disconnect(struct usb_phy *phy, enum usb_device_speed speed) { - dev_dbg(phy->dev, "%s speed device has disconnected\n", - (speed == USB_SPEED_HIGH) ? "high" : "non-high"); + dev_dbg(phy->dev, "%s device has disconnected\n", + (speed == USB_SPEED_HIGH) ? "HS" : "FS/LS"); if (speed == USB_SPEED_HIGH) writel(BM_USBPHY_CTRL_ENHOSTDISCONDETECT, @@ -184,6 +184,48 @@ static int mxs_phy_on_disconnect(struct usb_phy *phy, return 0; } +static int mxs_phy_on_suspend(struct usb_phy *phy, + enum usb_device_speed speed) +{ + struct mxs_phy *mxs_phy = to_mxs_phy(phy); + + dev_dbg(phy->dev, "%s device has suspended\n", + (speed == USB_SPEED_HIGH) ? "HS" : "FS/LS"); + + /* delay 4ms to wait bus entering idle */ + usleep_range(4000, 5000); + + if (mxs_phy->flags & MXS_PHY_ABNORAML_IN_SUSPEND) { + writel_relaxed(0xffffffff, phy->io_priv + HW_USBPHY_PWD); + writel_relaxed(0, phy->io_priv + HW_USBPHY_PWD); + } + + if (speed == USB_SPEED_HIGH) + writel_relaxed(BM_USBPHY_CTRL_ENHOSTDISCONDETECT, + phy->io_priv + HW_USBPHY_CTRL_CLR); + + return 0; +} + +/* + * The resume signal must be finished here. + */ +static int mxs_phy_on_resume(struct usb_phy *phy, + enum usb_device_speed speed) +{ + dev_dbg(phy->dev, "%s device has resumed\n", + (speed == USB_SPEED_HIGH) ? "HS" : "FS/LS"); + + if (speed == USB_SPEED_HIGH) { + /* Make sure the device has switched to High-Speed mode */ + udelay(500); + writel_relaxed(BM_USBPHY_CTRL_ENHOSTDISCONDETECT, + phy->io_priv + HW_USBPHY_CTRL_SET); + } + + return 0; +} + static int mxs_phy_probe(struct platform_device *pdev) { struct resource *res; @@ -239,6 +281,10 @@ static int mxs_phy_probe(struct platform_device *pdev) mxs_phy->clk = clk; mxs_phy->flags = platform_flag->flags; + if (mxs_phy->flags & MXS_PHY_SENDING_SOF_TOO_FAST) { + mxs_phy->phy.notify_suspend = mxs_phy_on_suspend; + mxs_phy->phy.notify_resume = mxs_phy_on_resume; + } platform_set_drvdata(pdev, &mxs_phy->phy); -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html