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authorJesse Barnes <jbarnes@virtuousgeek.org>2010-10-07 16:01:09 -0700
committerChris Wilson <chris@chris-wilson.co.uk>2010-10-08 09:21:50 +0100
commit814948adec172dbc41252b1815e4e83aedfe91b9 (patch)
tree295e5ea7bb3f7878925febee6fd5fece9e92eebb /drivers
parent51190667b3c6927356e594cdf6955980ff47bb16 (diff)
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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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/i915/intel_dp.c19
-rw-r--r--drivers/gpu/drm/i915/intel_drv.h1
2 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 714e553..da71263 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -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);
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 40e99bf..c946c48 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -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,