diff options
| author | Takashi Iwai <tiwai@suse.de> | 2010-06-02 14:18:06 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-06-02 14:18:06 +0200 |
| commit | c7a441bba9de3b4e166b6a4449208bc906d70558 (patch) | |
| tree | 346fdf11e464c8201a9aaa8abdd1c1b6dc4f86e0 /drivers/gpu/drm/i915/intel_crt.c | |
| parent | ead54d878465291746c91c95749990d62742a6cf (diff) | |
| parent | e4caa8bab3862a7694ab7c6dfede223227ad7fc5 (diff) | |
Merge branch 'fix/hda' into for-linus
Diffstat (limited to 'drivers/gpu/drm/i915/intel_crt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_crt.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index e16ac5a28c3..22ff3845573 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -217,7 +217,8 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector) { struct drm_device *dev = connector->dev; struct drm_i915_private *dev_priv = dev->dev_private; - u32 hotplug_en; + u32 hotplug_en, orig, stat; + bool ret = false; int i, tries = 0; if (HAS_PCH_SPLIT(dev)) @@ -232,8 +233,8 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector) tries = 2; else tries = 1; - hotplug_en = I915_READ(PORT_HOTPLUG_EN); - hotplug_en &= CRT_FORCE_HOTPLUG_MASK; + hotplug_en = orig = I915_READ(PORT_HOTPLUG_EN); + hotplug_en &= CRT_HOTPLUG_MASK; hotplug_en |= CRT_HOTPLUG_FORCE_DETECT; if (IS_G4X(dev)) @@ -255,11 +256,17 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector) } while (time_after(timeout, jiffies)); } - if ((I915_READ(PORT_HOTPLUG_STAT) & CRT_HOTPLUG_MONITOR_MASK) != - CRT_HOTPLUG_MONITOR_NONE) - return true; + stat = I915_READ(PORT_HOTPLUG_STAT); + if ((stat & CRT_HOTPLUG_MONITOR_MASK) != CRT_HOTPLUG_MONITOR_NONE) + ret = true; + + /* clear the interrupt we just generated, if any */ + I915_WRITE(PORT_HOTPLUG_STAT, CRT_HOTPLUG_INT_STATUS); - return false; + /* and put the bits back */ + I915_WRITE(PORT_HOTPLUG_EN, orig); + + return ret; } static bool intel_crt_detect_ddc(struct drm_encoder *encoder) @@ -569,7 +576,7 @@ void intel_crt_init(struct drm_device *dev) (1 << INTEL_ANALOG_CLONE_BIT) | (1 << INTEL_SDVO_LVDS_CLONE_BIT); intel_encoder->crtc_mask = (1 << 0) | (1 << 1); - connector->interlace_allowed = 0; + connector->interlace_allowed = 1; connector->doublescan_allowed = 0; drm_encoder_helper_add(&intel_encoder->enc, &intel_crt_helper_funcs); |