* Kevin Hilman <khilman@xxxxxx> [120706 11:25]: > The EHCI driver is not stable enough to be enabled by default. In v3.5, > it has at least the following problems: > > - warning dump during bootup > - hang during suspend > - prevents CORE powerdomain from entering retention during idle (even > when no USB devices connected.) > > This demonstrates that this driver has not been thoroughly tested and > therfore should not be enabled in the default defconfig. > > In addition, the problems above cause new PM regressions which need be > addressed before this driver should be enabled in the default > defconfig. > > Signed-off-by: Kevin Hilman <khilman@xxxxxx> > --- > Tony, this applies to your current fixes branch. Please queue up for v3.5-rc > so this PM regression is fixed in v3.5. Thanks. OK adding, although I don't like the idea of having to disable drivers in the defconfig to fix issues :( The hang during suspend case would be potentially hit by many people.. Should the driver/usb/host/ehci-omap.c be patched to disable suspend or at least warn about it? Regards, Tony > arch/arm/configs/omap2plus_defconfig | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig > index 9854ff4..11828e6 100644 > --- a/arch/arm/configs/omap2plus_defconfig > +++ b/arch/arm/configs/omap2plus_defconfig > @@ -176,7 +176,6 @@ CONFIG_USB_ANNOUNCE_NEW_DEVICES=y > CONFIG_USB_DEVICEFS=y > CONFIG_USB_SUSPEND=y > CONFIG_USB_MON=y > -CONFIG_USB_EHCI_HCD=y > CONFIG_USB_WDM=y > CONFIG_USB_STORAGE=y > CONFIG_USB_LIBUSUAL=y > -- > 1.7.9.2 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
