diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_crt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_crt.c | 59 |
1 files changed, 26 insertions, 33 deletions
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index ee0732b222a1..197d4f32585a 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -160,19 +160,20 @@ static bool intel_ironlake_crt_detect_hotplug(struct drm_connector *connector) struct drm_i915_private *dev_priv = dev->dev_private; u32 adpa, temp; bool ret; + bool turn_off_dac = false; temp = adpa = I915_READ(PCH_ADPA); - if (HAS_PCH_CPT(dev)) { - /* Disable DAC before force detect */ - I915_WRITE(PCH_ADPA, adpa & ~ADPA_DAC_ENABLE); - (void)I915_READ(PCH_ADPA); - } else { - adpa &= ~ADPA_CRT_HOTPLUG_MASK; - /* disable HPD first */ - I915_WRITE(PCH_ADPA, adpa); - (void)I915_READ(PCH_ADPA); - } + if (HAS_PCH_SPLIT(dev)) + turn_off_dac = true; + + adpa &= ~ADPA_CRT_HOTPLUG_MASK; + if (turn_off_dac) + adpa &= ~ADPA_DAC_ENABLE; + + /* disable HPD first */ + I915_WRITE(PCH_ADPA, adpa); + (void)I915_READ(PCH_ADPA); adpa |= (ADPA_CRT_HOTPLUG_PERIOD_128 | ADPA_CRT_HOTPLUG_WARMUP_10MS | @@ -185,10 +186,11 @@ static bool intel_ironlake_crt_detect_hotplug(struct drm_connector *connector) DRM_DEBUG_KMS("pch crt adpa 0x%x", adpa); I915_WRITE(PCH_ADPA, adpa); - while ((I915_READ(PCH_ADPA) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) != 0) - ; + if (wait_for((I915_READ(PCH_ADPA) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) == 0, + 1000, 1)) + DRM_DEBUG_KMS("timed out waiting for FORCE_TRIGGER"); - if (HAS_PCH_CPT(dev)) { + if (turn_off_dac) { I915_WRITE(PCH_ADPA, temp); (void)I915_READ(PCH_ADPA); } @@ -237,17 +239,13 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector) hotplug_en |= CRT_HOTPLUG_FORCE_DETECT; for (i = 0; i < tries ; i++) { - unsigned long timeout; /* turn on the FORCE_DETECT */ I915_WRITE(PORT_HOTPLUG_EN, hotplug_en); - timeout = jiffies + msecs_to_jiffies(1000); /* wait for FORCE_DETECT to go off */ - do { - if (!(I915_READ(PORT_HOTPLUG_EN) & - CRT_HOTPLUG_FORCE_DETECT)) - break; - msleep(1); - } while (time_after(timeout, jiffies)); + if (wait_for((I915_READ(PORT_HOTPLUG_EN) & + CRT_HOTPLUG_FORCE_DETECT) == 0, + 1000, 1)) + DRM_DEBUG_KMS("timed out waiting for FORCE_DETECT to go off"); } stat = I915_READ(PORT_HOTPLUG_STAT); @@ -331,7 +329,7 @@ intel_crt_load_detect(struct drm_crtc *crtc, struct intel_encoder *intel_encoder I915_WRITE(pipeconf_reg, pipeconf | PIPECONF_FORCE_BORDER); /* Wait for next Vblank to substitue * border color for Color info */ - intel_wait_for_vblank(dev); + intel_wait_for_vblank(dev, pipe); st00 = I915_READ8(VGA_MSR_WRITE); status = ((st00 & (1 << 4)) != 0) ? connector_status_connected : @@ -402,7 +400,8 @@ intel_crt_load_detect(struct drm_crtc *crtc, struct intel_encoder *intel_encoder return status; } -static enum drm_connector_status intel_crt_detect(struct drm_connector *connector) +static enum drm_connector_status +intel_crt_detect(struct drm_connector *connector, bool force) { struct drm_device *dev = connector->dev; struct drm_encoder *encoder = intel_attached_encoder(connector); @@ -421,6 +420,9 @@ static enum drm_connector_status intel_crt_detect(struct drm_connector *connecto if (intel_crt_detect_ddc(encoder)) return connector_status_connected; + if (!force) + return connector->status; + /* for pre-945g platforms use load detect */ if (encoder->crtc && encoder->crtc->enabled) { status = intel_crt_load_detect(encoder->crtc, intel_encoder); @@ -508,17 +510,8 @@ static const struct drm_connector_helper_funcs intel_crt_connector_helper_funcs .best_encoder = intel_attached_encoder, }; -static void intel_crt_enc_destroy(struct drm_encoder *encoder) -{ - struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder); - - intel_i2c_destroy(intel_encoder->ddc_bus); - drm_encoder_cleanup(encoder); - kfree(intel_encoder); -} - static const struct drm_encoder_funcs intel_crt_enc_funcs = { - .destroy = intel_crt_enc_destroy, + .destroy = intel_encoder_destroy, }; void intel_crt_init(struct drm_device *dev) |