path: root/drivers/gpu/drm/i915/intel_drv.h
diff options
authorDave Airlie <airlied@redhat.com>2014-06-18 11:29:35 +1000
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-07-07 15:08:51 +0200
commit13cf550448b58abf8f44f5d6a560f2d20871c965 (patch)
tree6681d87ef2510b812c30968d9cc4473feba05884 /drivers/gpu/drm/i915/intel_drv.h
parent564ed191f5d816d24501664296991ec70327e2bc (diff)
drm/i915: rework digital port IRQ handling (v2)
The digital ports from Ironlake and up have the ability to distinguish between long and short HPD pulses. Displayport 1.1 only uses the short form to request link retraining usually, so we haven't really needed support for it until now. However with DP 1.2 MST we need to handle the short irqs on their own outside the modesetting locking the long hpd's involve. This patch adds the framework to distinguish between short/long to the current code base, to lay the basis for future DP 1.2 MST work. This should mean we get better bisectability in case of regression due to the new irq handling. v2: add GM45 support (untested, due to lack of hw) Signed-off-by: Dave Airlie <airlied@redhat.com> Reviewed-by: Todd Previte <tprevite@gmail.com> [danvet: Fix conflicts in i915_irq.c with Oscar Mateo's irq handling race fixes and a trivial one in intel_drv.h with the psr code.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_drv.h')
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 0ef04ea68719..45afd25f9362 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -567,6 +567,7 @@ struct intel_digital_port {
u32 saved_port_bits;
struct intel_dp dp;
struct intel_hdmi hdmi;
+ bool (*hpd_pulse)(struct intel_digital_port *, bool);
static inline int
@@ -850,6 +851,8 @@ int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc);
bool intel_dp_compute_config(struct intel_encoder *encoder,
struct intel_crtc_config *pipe_config);
bool intel_dp_is_edp(struct drm_device *dev, enum port port);
+bool intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
+ bool long_hpd);
void intel_edp_backlight_on(struct intel_dp *intel_dp);
void intel_edp_backlight_off(struct intel_dp *intel_dp);
void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
@@ -861,7 +864,6 @@ void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate);
void intel_edp_psr_exit(struct drm_device *dev);
void intel_edp_psr_init(struct drm_device *dev);
/* intel_dsi.c */
void intel_dsi_init(struct drm_device *dev);