diff options
| author | Adrian Salido-Moreno <adrianm@codeaurora.org> | 2013-01-25 13:09:37 -0800 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 20:14:23 -0700 |
| commit | 4b2a52dc40899bcb47ee9d6db65f3865018e7b2f (patch) | |
| tree | a6a46bc1d82fe6fcd182f2dc10c71043976574f3 | |
| parent | c8d793ab5a3d8037d61385c775bd5a7be3c1d344 (diff) | |
msm: mdss: ensure minimum bandwidth is allocated for dsi commands
DSI commands are read from memory through bus. In order to send DSI
commands including power on, need to allocate minimum bandwidth request
to turn on the bus clock.
CRs-Fixed: 443422
Change-Id: I56b1c1c34aebadb19255bcc3a89f3a33271db13a
Signed-off-by: Adrian Salido-Moreno <adrianm@codeaurora.org>
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_mdp_ctl.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/video/fbdev/msm/mdss_mdp_ctl.c b/drivers/video/fbdev/msm/mdss_mdp_ctl.c index be7ee4ebd67e..5981227a9e52 100644 --- a/drivers/video/fbdev/msm/mdss_mdp_ctl.c +++ b/drivers/video/fbdev/msm/mdss_mdp_ctl.c @@ -69,10 +69,6 @@ static int mdss_mdp_ctl_perf_commit(u32 flags) bus_ib_quota = MDSS_MDP_BUS_FUDGE_FACTOR(bus_ib_quota); bus_ib_quota <<= MDSS_MDP_BUS_FACTOR_SHIFT; - if ((bus_ib_quota == 0) && (clk_rate > 0)) { - /* allocate min bw for panel cmds if mdp is active */ - bus_ib_quota = SZ_16M; - } mdss_mdp_bus_scale_set_quota(bus_ab_quota, bus_ib_quota); } if (flags & MDSS_MDP_PERF_UPDATE_CLK) { @@ -205,6 +201,10 @@ static int mdss_mdp_ctl_perf_update(struct mdss_mdp_ctl *ctl, u32 *flags) max_clk_rate = clk_rate; } + /* request minimum bandwidth for dsi commands */ + if ((total_ib_quota == 0) && (ctl->intf_type == MDSS_INTF_DSI)) + total_ib_quota = SZ_16M >> MDSS_MDP_BUS_FACTOR_SHIFT; + *flags = 0; if (max_clk_rate != ctl->clk_rate) { @@ -219,7 +219,7 @@ static int mdss_mdp_ctl_perf_update(struct mdss_mdp_ctl *ctl, u32 *flags) if ((total_ab_quota != ctl->bus_ab_quota) || (total_ib_quota != ctl->bus_ib_quota)) { if (ret == MDSS_MDP_PERF_UPDATE_SKIP) { - if (total_ib_quota > ctl->bus_ib_quota) + if (total_ib_quota >= ctl->bus_ib_quota) ret = MDSS_MDP_PERF_UPDATE_EARLY; else ret = MDSS_MDP_PERF_UPDATE_LATE; |