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| author | Michel Dänzer <michel@daenzer.net> | 2011-03-22 16:30:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-22 17:43:59 -0700 |
| commit | 63ec0119d3720034dfd626c9785aefa5a6f972ca (patch) | |
| tree | 58141ebc543324e8111c5fdc5f2ada50418926d6 /drivers/gpu/drm/radeon/radeon_connectors.c | |
| parent | bb7ca747f8d6243b3943c5b133048652020f4a50 (diff) | |
| download | kernel_samsung_smdk4412-63ec0119d3720034dfd626c9785aefa5a6f972ca.zip kernel_samsung_smdk4412-63ec0119d3720034dfd626c9785aefa5a6f972ca.tar.gz kernel_samsung_smdk4412-63ec0119d3720034dfd626c9785aefa5a6f972ca.tar.bz2 | |
radeon: expose backlight class device for legacy LVDS encoder
Allows e.g. power management daemons to control the backlight level. Inspired
by the corresponding code in radeonfb.
[mjg@redhat.com: updated to add backlight type and make the connector the parent device]
Signed-off-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: David Airlie <airlied@linux.ie>
Acked-by: Alex Deucher <alexdeucher@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Sedat Dilek <sedat.dilek@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_connectors.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_connectors.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 3f3c9aa..28c7961 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -40,6 +40,10 @@ radeon_atombios_connected_scratch_regs(struct drm_connector *connector, struct drm_encoder *encoder, bool connected); +extern void +radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder, + struct drm_connector *drm_connector); + void radeon_connector_hotplug(struct drm_connector *connector) { struct drm_device *dev = connector->dev; @@ -1526,6 +1530,17 @@ radeon_add_legacy_connector(struct drm_device *dev, connector->polled = DRM_CONNECTOR_POLL_HPD; connector->display_info.subpixel_order = subpixel_order; drm_sysfs_connector_add(connector); + if (connector_type == DRM_MODE_CONNECTOR_LVDS) { + struct drm_encoder *drm_encoder; + + list_for_each_entry(drm_encoder, &dev->mode_config.encoder_list, head) { + struct radeon_encoder *radeon_encoder; + + radeon_encoder = to_radeon_encoder(drm_encoder); + if (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_LVDS) + radeon_legacy_backlight_init(radeon_encoder, connector); + } + } return; failed: |