diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv04_display.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv04_display.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv04_display.c b/drivers/gpu/drm/nouveau/nv04_display.c index cd70bd827614..9e28cf772e3c 100644 --- a/drivers/gpu/drm/nouveau/nv04_display.c +++ b/drivers/gpu/drm/nouveau/nv04_display.c @@ -78,6 +78,14 @@ nv04_display_store_initial_head_owner(struct drm_device *dev) int nv04_display_early_init(struct drm_device *dev) { + /* Make the I2C buses accessible. */ + if (!nv_gf4_disp_arch(dev)) { + uint32_t pmc_enable = nv_rd32(dev, NV03_PMC_ENABLE); + + if (!(pmc_enable & 1)) + nv_wr32(dev, NV03_PMC_ENABLE, pmc_enable | 1); + } + /* Unlock the VGA CRTCs. */ NVLockVgaCrtcs(dev, false); |
