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author | Dave Airlie <airlied@redhat.com> | 2009-10-13 14:10:37 +1000 |
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committer | Dave Airlie <airlied@redhat.com> | 2009-12-02 11:37:09 +1000 |
commit | 1f3b6a45f0805690269a7a9d265cbbc2f15b6c6e (patch) | |
tree | 76e2d95a6b3da15598cd493b073ed00e6ecc2b69 /drivers/gpu/drm/radeon/radeon_encoders.c | |
parent | 2de3b4841f67a15c7b8e820b84dd6b7cc41370da (diff) | |
download | blackbird-op-linux-1f3b6a45f0805690269a7a9d265cbbc2f15b6c6e.tar.gz blackbird-op-linux-1f3b6a45f0805690269a7a9d265cbbc2f15b6c6e.zip |
drm/radeon/kms: add support for encoder cloning.
The RN50 really needs this since its a single crtc card,
however other gpus may benefit from it as well.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_encoders.c')
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_encoders.c | 46 |
1 files changed, 45 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c index 57a29f36115e..52e484fc75ff 100644 --- a/drivers/gpu/drm/radeon/radeon_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_encoders.c @@ -35,6 +35,51 @@ extern int atom_debug; bool radeon_atom_get_tv_timings(struct radeon_device *rdev, int index, struct drm_display_mode *mode); +static uint32_t radeon_encoder_clones(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_encoder *clone_encoder; + uint32_t index_mask = 0; + int count; + + /* DIG routing gets problematic */ + if (rdev->family >= CHIP_R600) + return index_mask; + /* LVDS/TV are too wacky */ + if (radeon_encoder->devices & ATOM_DEVICE_LCD_SUPPORT) + return index_mask; + /* DVO requires 2x ppll clocks depending on tmds chip */ + if (radeon_encoder->devices & ATOM_DEVICE_DFP2_SUPPORT) + return index_mask; + + count = -1; + list_for_each_entry(clone_encoder, &dev->mode_config.encoder_list, head) { + struct radeon_encoder *radeon_clone = to_radeon_encoder(clone_encoder); + count++; + + if (clone_encoder == encoder) + continue; + if (radeon_clone->devices & (ATOM_DEVICE_LCD_SUPPORT)) + continue; + if (radeon_clone->devices & ATOM_DEVICE_DFP2_SUPPORT) + continue; + else + index_mask |= (1 << count); + } + return index_mask; +} + +void radeon_setup_encoder_clones(struct drm_device *dev) +{ + struct drm_encoder *encoder; + + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + encoder->possible_clones = radeon_encoder_clones(encoder); + } +} + uint32_t radeon_get_encoder_id(struct drm_device *dev, uint32_t supported_device, uint8_t dac) { @@ -1341,7 +1386,6 @@ radeon_add_atom_encoder(struct drm_device *dev, uint32_t encoder_id, uint32_t su encoder->possible_crtcs = 0x1; else encoder->possible_crtcs = 0x3; - encoder->possible_clones = 0; radeon_encoder->enc_priv = NULL; |