radeon: introduce a dp_work handler

This is to be called on short HPD irqs, just introduce
the basic infrastructure for it.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 26a339b1b2cd61a370ca2dd5e2d122600bf9250a..1506332d6f2261d75e52ebae4ff90276df6bc1cc 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -2412,6 +2412,7 @@ struct radeon_device {
        struct radeon_rlc rlc;
        struct radeon_mec mec;
        struct work_struct hotplug_work;
+       struct work_struct dp_work;
        struct work_struct audio_work;
        int num_crtc; /* number of crtcs */
        struct mutex dc_hw_i2c_mutex; /* display controller hw i2c mutex */

diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index 00fc59762e0df3bba0758d1f18e90328e5726635..e82ae819fc102c6afdb3ab7f9e0196cb093e732c 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -87,6 +87,9 @@ static void radeon_hotplug_work_func(struct work_struct *work)
        drm_helper_hpd_irq_event(dev);
 }
 
+static void radeon_dp_work_func(struct work_struct *work)
+{
+}
 /**
  * radeon_driver_irq_preinstall_kms - drm irq preinstall callback
  *
@@ -276,6 +279,7 @@ int radeon_irq_kms_init(struct radeon_device *rdev)
        }
 
        INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func);
+       INIT_WORK(&rdev->dp_work, radeon_dp_work_func);
        INIT_WORK(&rdev->audio_work, r600_audio_update_hdmi);
 
        rdev->irq.installed = true;