Kernel Serial Summary March 2011

Highlights:
 Open source 

-usb: ehci: omap: add support for TLL mode on OMAP4

-MUSB Idle path retention and offmode support for OMAP3

- Revamp of EHCI & OHCI code to incorporate simultaneous support based on sync layer. (Tested both on OMAP3 & OMAP4)

- Misc defect fixes

 Silicon Issues debugging 

- Root causes and Worked around various EHCI hw issues on OMAP4.

 OMAP5 pre-silicon development 

- USB 3.0 device controller level code ready.

Key Open issues
- Challenges in UART Runtime PM support leading to getting rid of suspend/resume calls in Idle path

- (PCI-Express based) HAPS board availability for USB 3.0 testing

- Integration of external memory into OCP based HAPS board

Plan for April
OMAP4

- UART code reorganization:

- To separate out most of the code in the driver layer

-Remove code from Idle path

-PM runtime support using Autosuspend feature.

- USB Battery Charger detection root-cause.

OMAP5

- USB 3.0 pre-silicon validation

- Validation on Virtio

- Validation on PCI-express basedHAPS(?), if available from Synopsys

- Send RFC patches to open source for USB 3.0

- Gadget drivers upgradation for USB 3.0 (Collaborate with other Open source contributors)

- Testing of I2C on OMAP5 Virtio & Zebu