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drm/nouveau/clk/gk20a: reorganize variables in gk20a_pllg_calc_mnp()

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Move some variables declarations to the scope where they are actually
used to make the code easier to follow.

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 14:05:01 +09:00 committed by Ben Skeggs
parent af6313d61a
commit d865f3c52d
1 changed files with 8 additions and 4 deletions
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12
drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c
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@ -153,11 +153,9 @@ gk20a_pllg_calc_mnp(struct gk20a_clk *clk, unsigned long rate)
u32 target_clk_f, ref_clk_f, target_freq;
u32 min_vco_f, max_vco_f;
u32 low_pl, high_pl, best_pl;
u32 target_vco_f, vco_f;
u32 target_vco_f;
u32 best_m, best_n;
u32 u_f;
u32 m, n, n2;
u32 delta, lwv, best_delta = ~0;
u32 best_delta = ~0;
u32 pl;
target_clk_f = rate * 2 / KHZ;
@ -202,8 +200,12 @@ gk20a_pllg_calc_mnp(struct gk20a_clk *clk, unsigned long rate)
/* Select lowest possible VCO */
for (pl = low_pl; pl <= high_pl; pl++) {
u32 m, n, n2;
target_vco_f = target_clk_f * pl_to_div[pl];
for (m = clk->params->min_m; m <= clk->params->max_m; m++) {
u32 u_f, vco_f;
u_f = ref_clk_f / m;
if (u_f < clk->params->min_u)
@ -226,6 +228,8 @@ gk20a_pllg_calc_mnp(struct gk20a_clk *clk, unsigned long rate)
vco_f = ref_clk_f * n / m;
if (vco_f >= min_vco_f && vco_f <= max_vco_f) {
u32 delta, lwv;
lwv = (vco_f + (pl_to_div[pl] / 2))
/ pl_to_div[pl];
delta = abs(lwv - target_clk_f);