drm/i915/tv: Fix interlaced ysize calculation

Fix the calculation of the vertical active period for interlaced
TV modes.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181112170000.27531-4-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>

diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index bd5536f..91cb31f 100644 (file)
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1086,7 +1086,7 @@ static void intel_tv_pre_enable(struct intel_encoder *encoder,
        if (tv_mode->progressive)
                ysize = tv_mode->nbr_end + 1;
        else
-               ysize = 2*tv_mode->nbr_end + 1;
+               ysize = 2 * (tv_mode->nbr_end + 1);
 
        xpos += conn_state->tv.margins.left;
        ypos += conn_state->tv.margins.top;