drm/bridge: nwl-dsi: Avoid potential multiplication overflow on 32-bit

[linux-2.6-microblaze.git] / drivers / gpu / drm / bridge / nwl-dsi.c

diff --git a/drivers/gpu/drm/bridge/nwl-dsi.c b/drivers/gpu/drm/bridge/nwl-dsi.c
index d798606..ed8ac50 100644 (file)
--- a/drivers/gpu/drm/bridge/nwl-dsi.c
+++ b/drivers/gpu/drm/bridge/nwl-dsi.c
@@ -190,7 +190,7 @@ static u32 ps2bc(struct nwl_dsi *dsi, unsigned long long ps)
        u32 bpp = mipi_dsi_pixel_format_to_bpp(dsi->format);
 
        return DIV64_U64_ROUND_UP(ps * dsi->mode.clock * bpp,
-                                 dsi->lanes * 8 * NSEC_PER_SEC);
+                                 dsi->lanes * 8ULL * NSEC_PER_SEC);
 }
 
 /*