diff options
| author | Linux Build Service Account <lnxbuild@localhost> | 2016-11-14 21:53:59 -0800 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2016-11-14 21:53:58 -0800 |
| commit | a4bd3599a0a161ff0711ec6bd850d316438b6464 (patch) | |
| tree | 485a6fe1a55be9a35f01aecfddfb4d3a8e3cc31e /drivers/video/fbdev/msm | |
| parent | 1f3e1e09867c04f330894f7358a3dbbd2aaa0b78 (diff) | |
| parent | 720d736d5beea1cae7b0eac77366079e419309f0 (diff) | |
Merge "mdss: display-port: fix link rate calculation"
Diffstat (limited to 'drivers/video/fbdev/msm')
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_dp_aux.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/video/fbdev/msm/mdss_dp_aux.c b/drivers/video/fbdev/msm/mdss_dp_aux.c index e396dfff60ef..b64518194926 100644 --- a/drivers/video/fbdev/msm/mdss_dp_aux.c +++ b/drivers/video/fbdev/msm/mdss_dp_aux.c @@ -514,7 +514,7 @@ char mdss_dp_gen_link_clk(struct mdss_panel_info *pinfo, char lane_cnt) { const u32 encoding_factx10 = 8; const u32 ln_to_link_ratio = 10; - u32 min_link_rate; + u32 min_link_rate, reminder = 0; char calc_link_rate = 0; pr_debug("clk_rate=%llu, bpp= %d, lane_cnt=%d\n", @@ -531,9 +531,15 @@ char mdss_dp_gen_link_clk(struct mdss_panel_info *pinfo, char lane_cnt) (lane_cnt * encoding_factx10)); min_link_rate /= ln_to_link_ratio; min_link_rate = (min_link_rate * pinfo->bpp); - min_link_rate = (u32)div_u64(min_link_rate * 10, - DP_LINK_RATE_MULTIPLIER); + min_link_rate = (u32)div_u64_rem(min_link_rate * 10, + DP_LINK_RATE_MULTIPLIER, &reminder); + /* + * To avoid any fractional values, + * increment the min_link_rate + */ + if (reminder) + min_link_rate += 1; pr_debug("min_link_rate = %d\n", min_link_rate); if (min_link_rate <= DP_LINK_RATE_162) |