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authorRaghavendra VK <rvk@nvidia.com>2012-08-27 11:00:12 -0700
committerDan Willemsen <dwillemsen@nvidia.com>2013-09-14 01:25:58 -0700
commitc5bfaff39dee6a5e3b7f50128e315fdea4e278f6 (patch)
tree9e06046eaa5334d96ef8b10c3755cf480298f316 /drivers/video/tegra/dc/mode.c
parent7205115e3241507b1c1d9e7fb58af589ac788def (diff)
tegra: dc: Fix div by zero in frame time computation.
- Set frame duration to 0 in NULL modeset. bug 1039104 Change-Id: I2b7d5a8a7c1748d8d582505946014e002326cbee Signed-off-by: Raghavendra VK <rvk@nvidia.com> Reviewed-on: http://git-master/r/127603 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Robert Morell <rmorell@nvidia.com> Reviewed-by: Jon Mayo <jmayo@nvidia.com> Rebase-Id: R46793c4eae68c60a976767ef7b5f8b4ebe5194a7
Diffstat (limited to 'drivers/video/tegra/dc/mode.c')
-rw-r--r--drivers/video/tegra/dc/mode.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/video/tegra/dc/mode.c b/drivers/video/tegra/dc/mode.c
index 6a17e3e7e518..963ced66be4c 100644
--- a/drivers/video/tegra/dc/mode.c
+++ b/drivers/video/tegra/dc/mode.c
@@ -144,7 +144,8 @@ static s64 calc_frametime_ns(const struct tegra_dc_mode *m)
m->h_sync_width;
v_total = m->v_active + m->v_front_porch + m->v_back_porch +
m->v_sync_width;
- return (s64)(div_s64(((s64)h_total * v_total * 1000000000ULL), m->pclk));
+ return (!m->pclk) ? 0 : (s64)(div_s64(((s64)h_total * v_total *
+ 1000000000ULL), m->pclk));
}
/* return in 1000ths of a Hertz */