On Wed, 2012-02-15 at 11:35 -0800, Kevin Hilman wrote: > Tero Kristo <[email protected]> writes: > > > Some clockdomains can't support manual domain transitions triggered by > > clock framework, and must be prevented from doing so. Added clkdm flag > > CLKDM_NO_MANUAL_TRANS for doing this. > > > > Signed-off-by: Tero Kristo <[email protected]> > > Cc: Paul Walmsley <[email protected]> > > Cc: Kevin Hilman <[email protected]> > > Dumb Q: what's the difference between this new flag and CLKDM_CAN_SWSUP?
CAN_SWSUP controls software wakeup / sleep (clktrctrl values 1 and 2), but it still allows hwsup based transitions during runtime (basically using values 0 & 3 for the same register.) NO_MANUAL_TRANS prevents both, but still allows hwauto mode being enabled in the first place. I was thinking about adding a flag for preventing the autodep disabling as this was the root cause for the problem I saw, but I wanted to optimize the _clkdm_clk_hwmod_enable/disable for this case, as the domain is not going through any transitions. -Tero -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
