Hi all, This is enhancement for "usb: chipidea: add runtime power management support" (http://www.spinics.net/lists/linux-usb/msg118987.html), it adds - USB as wakeup source support - Fix system hang when unload module The runtime pm close the clock before access hardware registers. - Fix system hang at boots up sometimes at some boards The reason is disable PLL/USB PHY just after enable PLL/USB PHY, we set two seconds autosuspend timer to fix this issue.
Since runtime pm will take the PHY enter low power mode and gate the controller clock, if there is no related wakeup logic, the usb will can't be used any more, and wakeup logic is different per vendor/platform, I only enable the platforms which I have tested. For platforms who want to use runtime pm and usb as wakeup source, please enable it at related glue layer driver. Tested at imx6dl evk, imx6sl evk, and imx6sx evk. Comments are welcome. Peter Chen (6): usb: chipidea: add runtime power management support usb: chipidea: usbmisc_imx: add .set_wakeup interface usb: chipidea: imx: add runtime power management support usb: chipidea: add usb as system wakeup source usb: chipidea: imx: add usb as system wakeup source doc: usb: chipidea: add usb wakeup enable example Documentation/usb/chipidea.txt | 21 +++++++ drivers/usb/chipidea/ci.h | 6 ++ drivers/usb/chipidea/ci_hdrc_imx.c | 119 +++++++++++++++++++++++++++++++++++-- drivers/usb/chipidea/ci_hdrc_imx.h | 1 + drivers/usb/chipidea/core.c | 110 ++++++++++++++++++++++++++++++++-- drivers/usb/chipidea/otg.c | 2 + drivers/usb/chipidea/usbmisc_imx.c | 52 ++++++++++++++++ include/linux/usb/chipidea.h | 1 + 8 files changed, 300 insertions(+), 12 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
