diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/rs600.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/rs600.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c index 6acba8017b9a..df01aa398cc5 100644 --- a/drivers/gpu/drm/radeon/rs600.c +++ b/drivers/gpu/drm/radeon/rs600.c @@ -153,6 +153,67 @@ u32 rs600_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base) return RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING; } +void avivo_program_fmt(struct drm_encoder *encoder) +{ + struct drm_device *dev = encoder->dev; + struct radeon_device *rdev = dev->dev_private; + struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); + struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); + int bpc = 0; + u32 tmp = 0; + bool dither = false; + + if (connector) + bpc = radeon_get_monitor_bpc(connector); + + /* LVDS FMT is set up by atom */ + if (radeon_encoder->devices & ATOM_DEVICE_LCD_SUPPORT) + return; + + if (bpc == 0) + return; + + switch (bpc) { + case 6: + if (dither) + /* XXX sort out optimal dither settings */ + tmp |= AVIVO_TMDS_BIT_DEPTH_CONTROL_SPATIAL_DITHER_EN; + else + tmp |= AVIVO_TMDS_BIT_DEPTH_CONTROL_TRUNCATE_EN; + break; + case 8: + if (dither) + /* XXX sort out optimal dither settings */ + tmp |= (AVIVO_TMDS_BIT_DEPTH_CONTROL_SPATIAL_DITHER_EN | + AVIVO_TMDS_BIT_DEPTH_CONTROL_SPATIAL_DITHER_DEPTH); + else + tmp |= (AVIVO_TMDS_BIT_DEPTH_CONTROL_TRUNCATE_EN | + AVIVO_TMDS_BIT_DEPTH_CONTROL_TRUNCATE_DEPTH); + break; + case 10: + default: + /* not needed */ + break; + } + + switch (radeon_encoder->encoder_id) { + case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1: + WREG32(AVIVO_TMDSA_BIT_DEPTH_CONTROL, tmp); + break; + case ENCODER_OBJECT_ID_INTERNAL_LVTM1: + WREG32(AVIVO_LVTMA_BIT_DEPTH_CONTROL, tmp); + break; + case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1: + WREG32(AVIVO_DVOA_BIT_DEPTH_CONTROL, tmp); + break; + case ENCODER_OBJECT_ID_INTERNAL_DDI: + WREG32(AVIVO_DDIA_BIT_DEPTH_CONTROL, tmp); + break; + default: + break; + } +} + void rs600_pm_misc(struct radeon_device *rdev) { int requested_index = rdev->pm.requested_power_state_index; |