The porches must be rounded up to make the samsung-dsim work.
Signed-off-by: Michael Tretter <m.tretter@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/bridge/samsung-dsim.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c
index 4de6e4f116db..459be953be55 100644
--- a/drivers/gpu/drm/bridge/samsung-dsim.c
+++ b/drivers/gpu/drm/bridge/samsung-dsim.c
@@ -974,9 +974,9 @@ static void samsung_dsim_set_display_mode(struct samsung_dsim *dsi)
if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO) {
int byte_clk_khz = dsi->hs_clock / 1000 / 8;
- int hfp = (m->hsync_start - m->hdisplay) * byte_clk_khz / m->clock;
- int hbp = (m->htotal - m->hsync_end) * byte_clk_khz / m->clock;
- int hsa = (m->hsync_end - m->hsync_start) * byte_clk_khz / m->clock;
+ int hfp = DIV_ROUND_UP((m->hsync_start - m->hdisplay) * byte_clk_khz, m->clock);
+ int hbp = DIV_ROUND_UP((m->htotal - m->hsync_end) * byte_clk_khz, m->clock);
+ int hsa = DIV_ROUND_UP((m->hsync_end - m->hsync_start) * byte_clk_khz, m->clock);
/* remove packet overhead when possible */
hfp = max(hfp - 6, 0);
--
2.39.2
