diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2013-10-22 13:45:16 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2013-11-08 16:04:20 +1000 |
| commit | df455db488c6e37d21f4e2c592b98da7e9396044 (patch) | |
| tree | 71166857c312047401b0cb443fed4884261c0b02 /drivers/gpu/drm/nouveau | |
| parent | 6b32d502877e4ff07df648a83b73553075c380c1 (diff) | |
drm/nva0/clk: fix accidental limiting of pll coefficients
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/clock/pllnv04.c | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/pllnv04.c b/drivers/gpu/drm/nouveau/core/subdev/clock/pllnv04.c index cf1ed0dc9bc9..7302219492dc 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/clock/pllnv04.c +++ b/drivers/gpu/drm/nouveau/core/subdev/clock/pllnv04.c @@ -38,7 +38,7 @@ getMNP_single(struct nouveau_subdev *subdev, struct nvbios_pll *info, int clk, * "clk" parameter in kHz * returns calculated clock */ - int cv = nouveau_bios(subdev)->version.chip; + struct nouveau_bios *bios = nouveau_bios(subdev); int minvco = info->vco1.min_freq, maxvco = info->vco1.max_freq; int minM = info->vco1.min_m, maxM = info->vco1.max_m; int minN = info->vco1.min_n, maxN = info->vco1.max_n; @@ -54,18 +54,21 @@ getMNP_single(struct nouveau_subdev *subdev, struct nvbios_pll *info, int clk, /* this division verified for nv20, nv18, nv28 (Haiku), and nv34 */ /* possibly correlated with introduction of 27MHz crystal */ - if (cv < 0x17 || cv == 0x1a || cv == 0x20) { - if (clk > 250000) - maxM = 6; - if (clk > 340000) - maxM = 2; - } else if (cv < 0x40) { - if (clk > 150000) - maxM = 6; - if (clk > 200000) - maxM = 4; - if (clk > 340000) - maxM = 2; + if (bios->version.major < 0x60) { + int cv = bios->version.chip; + if (cv < 0x17 || cv == 0x1a || cv == 0x20) { + if (clk > 250000) + maxM = 6; + if (clk > 340000) + maxM = 2; + } else if (cv < 0x40) { + if (clk > 150000) + maxM = 6; + if (clk > 200000) + maxM = 4; + if (clk > 340000) + maxM = 2; + } } P = 1 << maxP; |