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-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_fimd.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index cec508f9a335..3efe1aa89416 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -397,9 +397,16 @@ static void fimd_clear_channels(struct exynos_drm_crtc *crtc)
static u32 fimd_calc_clkdiv(struct fimd_context *ctx,
const struct drm_display_mode *mode)
{
- unsigned long ideal_clk = mode->htotal * mode->vtotal * mode->vrefresh;
+ unsigned long ideal_clk;
u32 clkdiv;
+ if (mode->clock == 0) {
+ DRM_ERROR("Mode has zero clock value.\n");
+ return 0xff;
+ }
+
+ ideal_clk = mode->clock * 1000;
+
if (ctx->i80_if) {
/*
* The frame done interrupt should be occurred prior to the