[PATCH] ARM: OMAP2+: omap2plus_defconfig: EHCI driver is not stable, disable it

Kevin Hilman khilman at ti.com
Fri Jul 6 14:20:28 EDT 2012


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 at ti.com>
---
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.

 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




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