leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/nouveau/clk/gk20a: only compute n_lo if needed

Browse Source 
n_lo is used if we are going to slide. Compute it only if that condition
succeeds to avoid confusion about future usage of this computation.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Alexandre Courbot 2016-02-12 14:15:57 +09:00 committed by Ben Skeggs
parent 3a91b9c5ef
commit a08c8bae66
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c
View File

@ -367,10 +367,12 @@ _gk20a_pllg_program_mnp(struct gk20a_clk *clk, bool allow_slide)
}
/* slide down to NDIV_LO */
n_lo = DIV_ROUND_UP(m_old * clk->params->min_vco,
clk->parent_rate / KHZ);
if (allow_slide && (cfg & GPCPLL_CFG_ENABLE)) {
int ret = gk20a_pllg_slide(clk, n_lo);
int ret;
n_lo = DIV_ROUND_UP(m_old * clk->params->min_vco,
clk->parent_rate / KHZ);
ret = gk20a_pllg_slide(clk, n_lo);
if (ret)
return ret;