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author | Dave Airlie <airlied@redhat.com> | 2011-12-20 14:43:53 +0000 |
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committer | Dave Airlie <airlied@redhat.com> | 2011-12-20 14:43:53 +0000 |
commit | 1fbe6f625f69e48c4001051dc1431afc704acfaa (patch) | |
tree | 826b741201a2e09a627ed350c6ff36935f5cff79 /drivers/gpu/drm/nouveau/nv40_pm.c | |
parent | 0cecdd818cd79d092e36e70dfe3a71f2878d6b96 (diff) | |
parent | 384703b8e6cd4c8ef08512e596024e028c91c339 (diff) | |
download | talos-op-linux-1fbe6f625f69e48c4001051dc1431afc704acfaa.tar.gz talos-op-linux-1fbe6f625f69e48c4001051dc1431afc704acfaa.zip |
Merge tag 'v3.2-rc6' of /home/airlied/devel/kernel/linux-2.6 into drm-core-next
Merge in the upstream tree to bring in the mainline fixes.
Conflicts:
drivers/gpu/drm/exynos/exynos_drm_fbdev.c
drivers/gpu/drm/nouveau/nouveau_sgdma.c
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv40_pm.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nv40_pm.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/nv40_pm.c b/drivers/gpu/drm/nouveau/nv40_pm.c index bbc0b9c7e1f7..e676b0d53478 100644 --- a/drivers/gpu/drm/nouveau/nv40_pm.c +++ b/drivers/gpu/drm/nouveau/nv40_pm.c @@ -57,12 +57,14 @@ read_pll_2(struct drm_device *dev, u32 reg) int P = (ctrl & 0x00070000) >> 16; u32 ref = 27000, clk = 0; - if (ctrl & 0x80000000) + if ((ctrl & 0x80000000) && M1) { clk = ref * N1 / M1; - - if (!(ctrl & 0x00000100)) { - if (ctrl & 0x40000000) - clk = clk * N2 / M2; + if ((ctrl & 0x40000100) == 0x40000000) { + if (M2) + clk = clk * N2 / M2; + else + clk = 0; + } } return clk >> P; @@ -177,6 +179,11 @@ nv40_pm_clocks_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl) } /* memory clock */ + if (!perflvl->memory) { + info->mpll_ctrl = 0x00000000; + goto out; + } + ret = nv40_calc_pll(dev, 0x004020, &pll, perflvl->memory, &N1, &M1, &N2, &M2, &log2P); if (ret < 0) @@ -264,6 +271,9 @@ nv40_pm_clocks_set(struct drm_device *dev, void *pre_state) mdelay(5); nv_mask(dev, 0x00c040, 0x00000333, info->ctrl); + if (!info->mpll_ctrl) + goto resume; + /* wait for vblank start on active crtcs, disable memory access */ for (i = 0; i < 2; i++) { if (!(crtc_mask & (1 << i))) |