On Wed, 2012-02-22 at 11:15 +0530, Archit Taneja wrote: > On Tuesday 21 February 2012 09:38 PM, Tomi Valkeinen wrote: > > On Tue, 2012-02-21 at 19:36 +0530, Archit Taneja wrote: > >> From: Lajos Molnar<[email protected]> > >> > >> If DSS is suspended during a wait_for_vsync operation, it may loose its > >> clock. > >> Request runtime_pm around wait_for_vsync. > >> > >> Signed-off-by: Lajos Molnar<[email protected]> > >> Signed-off-by: Archit Taneja<[email protected]> > >> --- > >> drivers/video/omap2/dss/dispc.c | 16 +++++++++++----- > >> 1 files changed, 11 insertions(+), 5 deletions(-) > > > > This only handles omap_dispc_wait_for_irq_interruptible_timeout(), > > there's also omap_dispc_wait_for_irq_timeout(). > > > > However, I think it'd be better to do the runtime_get/put in the caller, > > instead of in these dispc's wait funcs. While it doesn't really matter > > with dss_mgr_wait_for_vsync(), for dss_mgr/ovl_wait_for_go() it makes > > much more sense to get/put there just once, instead of every time the > > omap_dispc_wait_* is called. > > Right, that makes sense. Btw, in the current code, how do we ensure that > clocks are enabled when someone calls omap_dss_mgr_apply().
We don't. Apply does not touch any of the registers if the corresponding manager is not enabled, so there's no need to enable clocks. Tomi
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