From b1dc332c4d1524fe5d901ca91aa4c4e776526b4f Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Mon, 2 Jul 2012 21:09:00 +0200 Subject: [PATCH] drm/i915/lvds: implement get_hw_state Reviewed-by: Jesse Barnes Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_lvds.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 5fc7abca28e..52f9e7f3740 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -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; -- 2.20.1