diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/tegra/dc/dc.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/video/tegra/dc/dc.c b/drivers/video/tegra/dc/dc.c index fb3f70a1d7ca..10d07c478f89 100644 --- a/drivers/video/tegra/dc/dc.c +++ b/drivers/video/tegra/dc/dc.c @@ -831,12 +831,10 @@ static unsigned long tegra_dc_calc_win_bandwidth(struct tegra_dc *dc, (WIN_IS_TILED(w) ? tiled_windows_bw_multiplier : 1); /* - * Assuming 50% (X >> 1) efficiency: i.e. if we calculate we need 70MBps, we - * will request 140MBps from EMC. + * Assuming 48% efficiency: i.e. if we calculate we need 70MBps, we + * will request 147MBps from EMC. */ -#define MEM_EFFICIENCY_SHIFT 1 - ret <<= MEM_EFFICIENCY_SHIFT; -#undef MEM_EFFICIENCY_SHIFT + ret = ret * 2 + ret / 10; /* if overflowed */ if (ret > (1UL << 31)) |