diff options
| author | Ujwal Patel <ujwalp@codeaurora.org> | 2013-04-30 13:25:50 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 20:16:44 -0700 |
| commit | af7b6d1c3abded7a9c287c22deeba69360de4f3f (patch) | |
| tree | 496df78f8e6d42f4af3e59db44d269c67cf3efc1 /drivers/video/fbdev | |
| parent | d24330e257eb04ca7d34e67756d346b9bc716360 (diff) | |
msm: mdss: remove 64M alignment while requesting bus bandwidth
Currently bus bandwidth update is skipped if new bandwidth request is
within 64M boundary of current request. While enforcing this rule, new
request is changed to 64M aligned and then compared. This results in
higher bandwidth request then necessary which may lead system to higher
clock rate. Fix this by removing 64M alignment to new bandwidth request.
CRs-Fixed: 479711
Change-Id: Ib25afa00b6e9276146ca78a4ce9cbdf3a84288c4
Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>
Diffstat (limited to 'drivers/video/fbdev')
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_mdp.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/video/fbdev/msm/mdss_mdp.c b/drivers/video/fbdev/msm/mdss_mdp.c index 4c109b836aec..ce737997a5fe 100644 --- a/drivers/video/fbdev/msm/mdss_mdp.c +++ b/drivers/video/fbdev/msm/mdss_mdp.c @@ -388,12 +388,11 @@ int mdss_mdp_bus_scale_set_quota(u64 ab_quota, u64 ib_quota) bus_idx = (current_bus_idx % (num_cases - 1)) + 1; - /* aligning to avoid performing updates for small changes */ - ab_quota = ALIGN(ab_quota, SZ_64M); - ib_quota = ALIGN(ib_quota, SZ_64M); - vect = mdp_bus_scale_table.usecase[current_bus_idx].vectors; - if ((ab_quota == vect->ab) && (ib_quota == vect->ib)) { + + /* avoid performing updates for small changes */ + if ((ALIGN(ab_quota, SZ_64M) == ALIGN(vect->ab, SZ_64M)) && + (ALIGN(ib_quota, SZ_64M) == ALIGN(vect->ib, SZ_64M))) { pr_debug("skip bus scaling, no change in vectors\n"); return 0; } |