diff options
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c index 082d196e43da..5acdddfbcb25 100644 --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c @@ -569,11 +569,12 @@ static void sun6i_dsi_setup_timings(struct sun6i_dsi *dsi, (mode->htotal - mode->hsync_end) * Bpp - HBP_PACKET_OVERHEAD); /* - * The frontporch is set using a blanking packet (4 - * bytes + payload + 2 bytes). Its minimal size is - * therefore 6 bytes + * The frontporch is set using a sync event (4 bytes) + * and two blanking packets (each one is 4 bytes + + * payload + 2 bytes). Its minimal size is therefore + * 16 bytes */ -#define HFP_PACKET_OVERHEAD 6 +#define HFP_PACKET_OVERHEAD 16 hfp = max((unsigned int)HFP_PACKET_OVERHEAD, (mode->hsync_start - mode->hdisplay) * Bpp - HFP_PACKET_OVERHEAD); |