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drm/i915: add eDP checking functions for the display code 

The display code needs to distinguish between CPU and PCH attached eDP
panels, so add some helpers to handle that.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
hifive-unleashed-5.1
Jesse Barnes 2010-10-07 16:01:09 -07:00 committed by Chris Wilson
parent 51190667b3
commit 814948adec
2 changed files with 20 additions and 0 deletions
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19
drivers/gpu/drm/i915/intel_dp.c
View File

@ -95,6 +95,25 @@ static struct intel_dp *intel_attached_dp(struct drm_connector *connector)
struct intel_dp, base);
}
/**
* intel_encoder_is_pch_edp - is the given encoder a PCH attached eDP?
* @encoder: DRM encoder
*
* Return true if @encoder corresponds to a PCH attached eDP panel. Needed
* by intel_display.c.
*/
bool intel_encoder_is_pch_edp(struct drm_encoder *encoder)
{
struct intel_dp *intel_dp;
if (!encoder)
return false;
intel_dp = enc_to_intel_dp(encoder);
return is_pch_edp(intel_dp);
}
static void intel_dp_start_link_train(struct intel_dp *intel_dp);
static void intel_dp_complete_link_train(struct intel_dp *intel_dp);
static void intel_dp_link_down(struct intel_dp *intel_dp);

1
drivers/gpu/drm/i915/intel_drv.h
View File

@ -212,6 +212,7 @@ intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
extern bool intel_pch_has_edp(struct drm_crtc *crtc);
extern bool intel_dpd_is_edp(struct drm_device *dev);
extern void intel_edp_link_config (struct intel_encoder *, int *, int *);
extern bool intel_encoder_is_pch_edp(struct drm_encoder *encoder);
/* intel_panel.c */
extern void intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,