diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lvds.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lvds.c | 50 |
1 files changed, 31 insertions, 19 deletions
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 881b5d13592e..7f39b8ad88ae 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -98,15 +98,11 @@ static void intel_lvds_get_config(struct intel_encoder *encoder, { struct drm_device *dev = encoder->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - u32 lvds_reg, tmp, flags = 0; + struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); + u32 tmp, flags = 0; int dotclock; - if (HAS_PCH_SPLIT(dev)) - lvds_reg = PCH_LVDS; - else - lvds_reg = LVDS; - - tmp = I915_READ(lvds_reg); + tmp = I915_READ(lvds_encoder->reg); if (tmp & LVDS_HSYNC_POLARITY) flags |= DRM_MODE_FLAG_NHSYNC; else @@ -139,8 +135,7 @@ static void intel_pre_enable_lvds(struct intel_encoder *encoder) struct drm_device *dev = encoder->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc); - const struct drm_display_mode *adjusted_mode = - &crtc->config->base.adjusted_mode; + const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode; int pipe = crtc->pipe; u32 temp; @@ -289,11 +284,14 @@ intel_lvds_mode_valid(struct drm_connector *connector, { struct intel_connector *intel_connector = to_intel_connector(connector); struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode; + int max_pixclk = to_i915(connector->dev)->max_dotclk_freq; if (mode->hdisplay > fixed_mode->hdisplay) return MODE_PANEL; if (mode->vdisplay > fixed_mode->vdisplay) return MODE_PANEL; + if (fixed_mode->clock > max_pixclk) + return MODE_CLOCK_HIGH; return MODE_OK; } @@ -941,6 +939,7 @@ void intel_lvds_init(struct drm_device *dev) struct drm_display_mode *downclock_mode = NULL; struct edid *edid; struct drm_crtc *crtc; + u32 lvds_reg; u32 lvds; int pipe; u8 pin; @@ -952,7 +951,7 @@ void intel_lvds_init(struct drm_device *dev) if (HAS_PCH_SPLIT(dev)) { I915_WRITE(PCH_PP_CONTROL, I915_READ(PCH_PP_CONTROL) | PANEL_UNLOCK_REGS); - } else { + } else if (INTEL_INFO(dev_priv)->gen < 5) { I915_WRITE(PP_CONTROL, I915_READ(PP_CONTROL) | PANEL_UNLOCK_REGS); } @@ -963,8 +962,15 @@ void intel_lvds_init(struct drm_device *dev) if (dmi_check_system(intel_no_lvds)) return; + if (HAS_PCH_SPLIT(dev)) + lvds_reg = PCH_LVDS; + else + lvds_reg = LVDS; + + lvds = I915_READ(lvds_reg); + if (HAS_PCH_SPLIT(dev)) { - if ((I915_READ(PCH_LVDS) & LVDS_DETECTED) == 0) + if ((lvds & LVDS_DETECTED) == 0) return; if (dev_priv->vbt.edp_support) { DRM_DEBUG_KMS("disable LVDS for eDP support\n"); @@ -974,14 +980,25 @@ void intel_lvds_init(struct drm_device *dev) pin = GMBUS_PIN_PANEL; if (!lvds_is_present_in_vbt(dev, &pin)) { - u32 reg = HAS_PCH_SPLIT(dev) ? PCH_LVDS : LVDS; - if ((I915_READ(reg) & LVDS_PORT_EN) == 0) { + if ((lvds & LVDS_PORT_EN) == 0) { DRM_DEBUG_KMS("LVDS is not present in VBT\n"); return; } DRM_DEBUG_KMS("LVDS is not present in VBT, but enabled anyway\n"); } + /* Set the Panel Power On/Off timings if uninitialized. */ + if (INTEL_INFO(dev_priv)->gen < 5 && + I915_READ(PP_ON_DELAYS) == 0 && I915_READ(PP_OFF_DELAYS) == 0) { + /* Set T2 to 40ms and T5 to 200ms */ + I915_WRITE(PP_ON_DELAYS, 0x019007d0); + + /* Set T3 to 35ms and Tx to 200ms */ + I915_WRITE(PP_OFF_DELAYS, 0x015e07d0); + + DRM_DEBUG_KMS("Panel power timings uninitialized, setting defaults\n"); + } + lvds_encoder = kzalloc(sizeof(*lvds_encoder), GFP_KERNEL); if (!lvds_encoder) return; @@ -1040,11 +1057,7 @@ void intel_lvds_init(struct drm_device *dev) connector->interlace_allowed = false; connector->doublescan_allowed = false; - if (HAS_PCH_SPLIT(dev)) { - lvds_encoder->reg = PCH_LVDS; - } else { - lvds_encoder->reg = LVDS; - } + lvds_encoder->reg = lvds_reg; /* create the scaling mode property */ drm_mode_create_scaling_mode_property(dev); @@ -1125,7 +1138,6 @@ void intel_lvds_init(struct drm_device *dev) if (HAS_PCH_SPLIT(dev)) goto failed; - lvds = I915_READ(LVDS); pipe = (lvds & LVDS_PIPEB_SELECT) ? 1 : 0; crtc = intel_get_crtc_for_pipe(dev, pipe); |