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| author | David S. Miller <davem@davemloft.net> | 2012-08-22 14:21:38 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-08-22 14:21:38 -0700 |
| commit | 1304a7343b30fc4f16045412efdbb4179a3d9255 (patch) | |
| tree | 83d667ac4f62e30f70305ce4cc7e030e3465f92e /drivers/gpu/drm/mgag200/mgag200_mode.c | |
| parent | 1d76efe1577b4323609b1bcbfafa8b731eda071a (diff) | |
| parent | 23dcfa61bac244e1200ff9ad19c6e9144dcb6bb5 (diff) | |
| download | lwn-1304a7343b30fc4f16045412efdbb4179a3d9255.tar.gz lwn-1304a7343b30fc4f16045412efdbb4179a3d9255.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/gpu/drm/mgag200/mgag200_mode.c')
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_mode.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c index a4d7c500c97b..b69642d5d850 100644 --- a/drivers/gpu/drm/mgag200/mgag200_mode.c +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -468,10 +468,11 @@ static int mga_g200er_set_plls(struct mga_device *mdev, long clock) { unsigned int vcomax, vcomin, pllreffreq; unsigned int delta, tmpdelta; - unsigned int testr, testn, testm, testo; + int testr, testn, testm, testo; unsigned int p, m, n; - unsigned int computed; + unsigned int computed, vco; int tmp; + const unsigned int m_div_val[] = { 1, 2, 4, 8 }; m = n = p = 0; vcomax = 1488000; @@ -490,12 +491,13 @@ static int mga_g200er_set_plls(struct mga_device *mdev, long clock) if (delta == 0) break; for (testo = 5; testo < 33; testo++) { - computed = pllreffreq * (testn + 1) / + vco = pllreffreq * (testn + 1) / (testr + 1); - if (computed < vcomin) + if (vco < vcomin) continue; - if (computed > vcomax) + if (vco > vcomax) continue; + computed = vco / (m_div_val[testm] * (testo + 1)); if (computed > clock) tmpdelta = computed - clock; else |