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Commit b1dc332c authored by Daniel Vetter's avatar Daniel Vetter
Browse files

drm/i915/lvds: implement get_hw_state 



Reviewed-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 9a8ee983

drivers/gpu/drm/i915/intel_lvds.c

+28 −0
Original line number Diff line number Diff line
@@ -65,6 +65,32 @@ static struct intel_lvds *intel_attached_lvds(struct drm_connector *connector) 
			    struct intel_lvds, base);

}



static bool intel_lvds_get_hw_state(struct intel_encoder *encoder,

				    enum pipe *pipe)

{

	struct drm_device *dev = encoder->base.dev;

	struct drm_i915_private *dev_priv = dev->dev_private;

	u32 lvds_reg, tmp;



	if (HAS_PCH_SPLIT(dev)) {

		lvds_reg = PCH_LVDS;

	} else {

		lvds_reg = LVDS;

	}



	tmp = I915_READ(lvds_reg);



	if (!(tmp & LVDS_PORT_EN))

		return false;



	if (HAS_PCH_CPT(dev))

		*pipe = PORT_TO_PIPE_CPT(tmp);

	else

		*pipe = PORT_TO_PIPE(tmp);



	return true;

}



/**

 * Sets the power state for the panel.

 */
@@ -937,6 +963,8 @@ bool intel_lvds_init(struct drm_device *dev) 


	intel_encoder->enable = intel_enable_lvds;

	intel_encoder->disable = intel_disable_lvds;

	intel_encoder->get_hw_state = intel_lvds_get_hw_state;

	intel_connector->get_hw_state = intel_connector_get_hw_state;



	intel_connector_attach_encoder(intel_connector, intel_encoder);

	intel_encoder->type = INTEL_OUTPUT_LVDS;