On Thu, Apr 10, 2014 at 11:04:17AM -0700, Ben Widawsky wrote: > From: Ben Widawsky <[email protected]> > > This is a requirement added to the spec. This patch will present > persistent corruption on the display.
Prevent? I don't think we want to start showing corruption to the user. > Cc: Art Runyan <[email protected]> > Signed-off-by: Ben Widawsky <[email protected]> > --- > drivers/gpu/drm/i915/intel_display.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/intel_display.c > b/drivers/gpu/drm/i915/intel_display.c > index 7f02444..ebc84ee 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -3583,7 +3583,7 @@ void hsw_disable_ips(struct intel_crtc *crtc) > return; > > assert_plane_enabled(dev_priv, crtc->plane); > - if (IS_BROADWELL(crtc->base.dev)) { > + if (IS_BROADWELL(dev)) { > mutex_lock(&dev_priv->rps.hw_lock); > WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, > 0)); > mutex_unlock(&dev_priv->rps.hw_lock); > @@ -3594,6 +3594,10 @@ void hsw_disable_ips(struct intel_crtc *crtc) > > /* We need to wait for a vblank before we can disable the plane. */ > intel_wait_for_vblank(dev, crtc->pipe); > + > + /* wait for pcode to finish disabling IPS, which may take up to 42ms */ > + if (IS_BROADWELL(dev)) > + msleep(42); Reading too much Douglas Adams? -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
