On Wed, Jul 02, 2008 at 11:19:18AM -0400, Jon Smirl wrote: > On 7/1/08, Grant Likely <[EMAIL PROTECTED]> wrote: > > + /* Due to errata in the i2s mode; need to line up enabling > > + * the transmitter with a transition on the frame sync > > + * line */ > > + > > + spin_lock_irqsave(&psc_i2s->lock, flags); > > + /* first make sure it is low */ > > + while ((in_8(®s->ipcr_acr.ipcr) & 0x80) != 0); > > Could this be moved to the front of the routine, to increase parallelism? > > Once you detect the 0, it will be a fixed interval before the 1 > happens. Might as well overlap the computations. >
Good point. I'll try this out and see if it remains stable. If this gets done wrong, then left and right channels will often get swapped. g. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
