On 3/30/2012 10:26 AM, Tomi Valkeinen wrote:
On Fri, 2012-03-30 at 13:51 +0530, Shilimkar, Santosh wrote:
On Fri, Mar 30, 2012 at 1:37 PM, Tomi Valkeinen<tomi.valkeinen@xxxxxx> wrote:
All OMAP4 versions seem to be affected. I couldn't find a mention about
this in the mainline kernel. Any ideas how and where this should be
fixed?
It's not patched for mainline. Generally clock-domain code
is abstracted from drivers but considering the errata and affected
modules, I guees it should be handled by DSS driver
since that is where the state of DSS or ISS will be known. Note
ISS will be automatically taken care since it will always use disaplay.
In internal tree's this was handled as part of DSS early suspend/resume
That version doesn't work as it uses functions that are not exported to
drivers.
I don't know much about the clock domain code, but I hope there's a way
to handle it there. Otherwise I guess I need to add a new set of
platform callback functions, so that the dss driver can call
arch/arm/mach-omap2 code to enable and disable the work-around. I
dislike that because I'm currently trying to remove those kinds of hacks
to make dss work better with DT =).
I think we should just find another workaround :-)
There is not way we can let the drivers play directly with the clock
domain idle mode.
And in theory hacking the local sysconfig should have the same effect.
So we should check for a better workaround with HW designers on that one.
Regards,
Benoit
--
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
