On Fri, 2015-12-04 at 19:47 +0530, Deepak M wrote: > From: Gaurav K Singh <gaurav.k.singh@xxxxxxxxx> > > After sending SHUTDOWN or TURN ON packet,check the DPI > FIFO empty status. > Tested-by: Mika Kahola <mika.kahola@xxxxxxxxx> > Signed-off-by: Gaurav K Singh <gaurav.k.singh@xxxxxxxxx> > --- > drivers/gpu/drm/i915/intel_dsi.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c > index 170ae6f..5c5b59a 100644 > --- a/drivers/gpu/drm/i915/intel_dsi.c > +++ b/drivers/gpu/drm/i915/intel_dsi.c > @@ -222,6 +222,12 @@ static int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd, bool hs, > else > cmd |= DPI_LP_MODE; > > + mask = DPI_FIFO_EMPTY; > + > + if (wait_for((I915_READ(MIPI_GEN_FIFO_STAT(port)) & mask) > + == mask, 50)) > + DRM_ERROR("Timeout waiting for DPI FIFO empty\n"); > + > /* clear bit */ > I915_WRITE(MIPI_INTR_STAT(port), SPL_PKT_SENT_INTERRUPT); > _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx