diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv04_dfp.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv04_dfp.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv04_dfp.c b/drivers/gpu/drm/nouveau/nv04_dfp.c index ea89f6e69d4c..0d3206a7046c 100644 --- a/drivers/gpu/drm/nouveau/nv04_dfp.c +++ b/drivers/gpu/drm/nouveau/nv04_dfp.c @@ -475,6 +475,27 @@ static void nv04_dfp_commit(struct drm_encoder *encoder) nv_crtc->index, '@' + ffs(nv_encoder->dcb->or)); } +static void nv04_dfp_update_backlight(struct drm_encoder *encoder, int mode) +{ +#ifdef __powerpc__ + struct drm_device *dev = encoder->dev; + + /* BIOS scripts usually take care of the backlight, thanks + * Apple for your consistency. + */ + if (dev->pci_device == 0x0179 || dev->pci_device == 0x0189 || + dev->pci_device == 0x0329) { + if (mode == DRM_MODE_DPMS_ON) { + nv_mask(dev, NV_PBUS_DEBUG_DUALHEAD_CTL, 0, 1 << 31); + nv_mask(dev, NV_PCRTC_GPIO_EXT, 3, 1); + } else { + nv_mask(dev, NV_PBUS_DEBUG_DUALHEAD_CTL, 1 << 31, 0); + nv_mask(dev, NV_PCRTC_GPIO_EXT, 3, 0); + } + } +#endif +} + static inline bool is_powersaving_dpms(int mode) { return (mode != DRM_MODE_DPMS_ON); @@ -522,6 +543,7 @@ static void nv04_lvds_dpms(struct drm_encoder *encoder, int mode) LVDS_PANEL_OFF, 0); } + nv04_dfp_update_backlight(encoder, mode); nv04_dfp_update_fp_control(encoder, mode); if (mode == DRM_MODE_DPMS_ON) @@ -545,6 +567,7 @@ static void nv04_tmds_dpms(struct drm_encoder *encoder, int mode) NV_INFO(dev, "Setting dpms mode %d on tmds encoder (output %d)\n", mode, nv_encoder->dcb->index); + nv04_dfp_update_backlight(encoder, mode); nv04_dfp_update_fp_control(encoder, mode); } |