diff options
author | John W. Linville <linville@tuxdriver.com> | 2010-08-16 14:40:44 -0400 |
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committer | John W. Linville <linville@tuxdriver.com> | 2010-08-16 14:40:44 -0400 |
commit | 9714d315d28aef77a097fe905b25cc273c3d72ad (patch) | |
tree | 0ae1150b0723e925785ce774c3554f29fda050f6 /drivers/gpu/drm/i915/intel_crt.c | |
parent | 84c164a34ffe67908a932a2d641ec1a80c2d5435 (diff) | |
parent | 6ccf15a1a76d2ff915cdef6ae4d12d0170087118 (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
Diffstat (limited to 'drivers/gpu/drm/i915/intel_crt.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_crt.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index e16ac5a28c3c..ee0732b222a1 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)) @@ -232,15 +233,9 @@ 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_FORCE_DETECT; - if (IS_G4X(dev)) - hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64; - - hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50; - for (i = 0; i < tries ; i++) { unsigned long timeout; /* turn on the FORCE_DETECT */ @@ -255,11 +250,17 @@ 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); + + /* and put the bits back */ + I915_WRITE(PORT_HOTPLUG_EN, orig); - return false; + return ret; } static bool intel_crt_detect_ddc(struct drm_encoder *encoder) @@ -569,7 +570,7 @@ 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); |