[Intel-gfx] [PATCH] drm/i915/dp: wait for previous AUX channel activity to clear

[Jesse Barnes]

On Mon, 01 Aug 2011 14:42:25 -0700
Keith Packard <keithp at keithp.com> wrote:

> On Mon,  1 Aug 2011 14:14:35 -0700, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> 
> > +	for (try = 0; try < 3; try++) {
> > +		status = I915_READ(ch_ctl);
> > +		if ((status & DP_AUX_CH_CTL_SEND_BUSY) == 0)
> > +			break;
> > +		msleep(1);
> > +	}
> > +
> > +	if (try == 10) {
> 
> 10 != 3

Oh well that will make the backtrace silent, won't it...

-- 
Jesse Barnes, Intel Open Source Technology Center