Hello Gražvydas, On Mon, 11 Mar 2013, Grazvydas Ignotas wrote: > For some unknown reason, allowing hwmod to control MIDLEMODE causes > core_pwrdm to not hit idle states for musb in DM3730 at least. > I've verified that setting any MIDLEMODE value other than "force > standby" before enabling the device causes subsequent suspend > attempts to fail with core_pwrdm not entering idle states, even > if the driver is unloaded and "force standby" is restored before > suspend attempt. To recover from this, soft reset can be used, but > that's not suitable solution for suspend. > > Keeping the register set at force standby (reset value) makes it work > and device still functions properly, as musb has driver-controlled > OTG_FORCESTDBY register that controls MSTANDBY signal. > Note that TI PSP kernels also have similar workarounds. > > This patch also fixes HWMOD_SWSUP_MSTANDBY documentation to match the > actual flag name. > > Signed-off-by: Grazvydas Ignotas <notasas@xxxxxxxxx> Thanks for the good patch description and for making those changes. Queued for v3.9-rc. - Paul
