diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_crt.c | 6 |
3 files changed, 11 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 70e1e4b66744..d676e55eb212 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1434,8 +1434,18 @@ int i915_driver_irq_postinstall(struct drm_device *dev) hotplug_en |= SDVOC_HOTPLUG_INT_EN; if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS) hotplug_en |= SDVOB_HOTPLUG_INT_EN; - if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS) + if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS) { hotplug_en |= CRT_HOTPLUG_INT_EN; + + /* Programming the CRT detection parameters tends + to generate a spurious hotplug event about three + seconds later. So just do it once. + */ + if (IS_G4X(dev)) + hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64; + hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50; + } + /* Ignore TV since it's buggy */ I915_WRITE(PORT_HOTPLUG_EN, hotplug_en); diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 2cae38a57247..150400f40534 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1134,7 +1134,6 @@ #define CRT_HOTPLUG_DETECT_DELAY_2G (1 << 4) #define CRT_HOTPLUG_DETECT_VOLTAGE_325MV (0 << 2) #define CRT_HOTPLUG_DETECT_VOLTAGE_475MV (1 << 2) -#define CRT_HOTPLUG_MASK (0x3fc) /* Bits 9-2 */ #define PORT_HOTPLUG_STAT 0x61114 #define HDMIB_HOTPLUG_INT_STATUS (1 << 29) diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index 22ff38455731..ee0732b222a1 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -234,14 +234,8 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector) else tries = 1; hotplug_en = orig = I915_READ(PORT_HOTPLUG_EN); - hotplug_en &= CRT_HOTPLUG_MASK; 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 */ |