diff options
| author | Zhenyu Wang <zhenyuw@linux.intel.com> | 2010-03-30 14:39:29 +0800 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2010-04-09 14:16:38 -0700 |
| commit | f1c79df3aa2eda4756ddfe976f2eb5aa6507a35a (patch) | |
| tree | f35a68c04b3e99d5e15241e9f79d8083035a342a /drivers/gpu/drm/i915 | |
| parent | 5daa55eba7d7219616423c6955e90a8f196294a5 (diff) | |
| download | blackbird-op-linux-f1c79df3aa2eda4756ddfe976f2eb5aa6507a35a.tar.gz blackbird-op-linux-f1c79df3aa2eda4756ddfe976f2eb5aa6507a35a.zip | |
drm/i915: Add new helper to return current attached encoder for connector
For introducing splitted encoder/connector structure, this helper will return
connector's attached encoder when needed.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 25 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 1 |
2 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 412b442dc941..f9e11e863428 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4983,6 +4983,31 @@ struct drm_encoder *intel_best_encoder(struct drm_connector *connector) } /* + * Return which encoder is currently attached for connector. + */ +struct drm_encoder *intel_attached_encoder (struct drm_connector *connector) +{ + struct drm_mode_object *obj; + struct drm_encoder *encoder; + int i; + + for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { + if (connector->encoder_ids[i] == 0) + break; + + obj = drm_mode_object_find(connector->dev, + connector->encoder_ids[i], + DRM_MODE_OBJECT_ENCODER); + if (!obj) + continue; + + encoder = obj_to_encoder(obj); + return encoder; + } + return NULL; +} + +/* * set vga decode state - true == enable VGA decode */ int intel_modeset_vga_set_state(struct drm_device *dev, bool state) diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index d48c31220e02..5b2e3b219801 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -190,6 +190,7 @@ extern void intel_encoder_prepare (struct drm_encoder *encoder); extern void intel_encoder_commit (struct drm_encoder *encoder); extern struct drm_encoder *intel_best_encoder(struct drm_connector *connector); +extern struct drm_encoder *intel_attached_encoder(struct drm_connector *connector); extern struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev, struct drm_crtc *crtc); |
