drm/omap: HDMI: fix WP timings for ilace

The HDMI WP timings are not programmed correctly for interlace.

We need to halve the vertical timings when interlace is used, and double
the horizontal timings when pixel doubling is used.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi_wp.c b/drivers/gpu/drm/omapdrm/dss/hdmi_wp.c
index 1b76cdd..13442b9 100644 (file)
--- a/drivers/gpu/drm/omapdrm/dss/hdmi_wp.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi_wp.c
@@ -199,8 +199,6 @@ void hdmi_wp_init_vid_fmt_timings(struct hdmi_video_format *video_fmt,
        video_fmt->packing_mode = HDMI_PACK_10b_RGB_YUV444;
        video_fmt->y_res = param->timings.y_res;
        video_fmt->x_res = param->timings.x_res;
-       if (param->timings.interlace)
-               video_fmt->y_res /= 2;
 
        timings->hbp = param->timings.hbp;
        timings->hfp = param->timings.hfp;
@@ -208,9 +206,25 @@ void hdmi_wp_init_vid_fmt_timings(struct hdmi_video_format *video_fmt,
        timings->vbp = param->timings.vbp;
        timings->vfp = param->timings.vfp;
        timings->vsw = param->timings.vsw;
+
        timings->vsync_level = param->timings.vsync_level;
        timings->hsync_level = param->timings.hsync_level;
        timings->interlace = param->timings.interlace;
+       timings->double_pixel = param->timings.double_pixel;
+
+       if (param->timings.interlace) {
+               video_fmt->y_res /= 2;
+               timings->vbp /= 2;
+               timings->vfp /= 2;
+               timings->vsw /= 2;
+       }
+
+       if (param->timings.double_pixel) {
+               video_fmt->x_res *= 2;
+               timings->hfp *= 2;
+               timings->hsw *= 2;
+               timings->hbp *= 2;
+       }
 }
 
 void hdmi_wp_audio_config_format(struct hdmi_wp_data *wp,