diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_crt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_crt.c | 47 |
1 files changed, 39 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index 5a045d3bd77e..9212e6504e0f 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -137,6 +137,18 @@ static void hsw_crt_get_config(struct intel_encoder *encoder, pipe_config->adjusted_mode.flags |= intel_crt_get_flags(encoder); } +static void hsw_crt_pre_enable(struct intel_encoder *encoder) +{ + struct drm_device *dev = encoder->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + + WARN(I915_READ(SPLL_CTL) & SPLL_PLL_ENABLE, "SPLL already enabled\n"); + I915_WRITE(SPLL_CTL, + SPLL_PLL_ENABLE | SPLL_PLL_FREQ_1350MHz | SPLL_PLL_SSC); + POSTING_READ(SPLL_CTL); + udelay(20); +} + /* Note: The caller is required to filter out dpms modes not supported by the * platform. */ static void intel_crt_set_dpms(struct intel_encoder *encoder, int mode) @@ -194,6 +206,20 @@ static void intel_disable_crt(struct intel_encoder *encoder) intel_crt_set_dpms(encoder, DRM_MODE_DPMS_OFF); } + +static void hsw_crt_post_disable(struct intel_encoder *encoder) +{ + struct drm_device *dev = encoder->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + uint32_t val; + + DRM_DEBUG_KMS("Disabling SPLL\n"); + val = I915_READ(SPLL_CTL); + WARN_ON(!(val & SPLL_PLL_ENABLE)); + I915_WRITE(SPLL_CTL, val & ~SPLL_PLL_ENABLE); + POSTING_READ(SPLL_CTL); +} + static void intel_enable_crt(struct intel_encoder *encoder) { struct intel_crt *crt = intel_encoder_to_crt(encoder); @@ -289,8 +315,10 @@ static bool intel_crt_compute_config(struct intel_encoder *encoder, pipe_config->pipe_bpp = 24; /* FDI must always be 2.7 GHz */ - if (HAS_DDI(dev)) + if (HAS_DDI(dev)) { + pipe_config->ddi_pll_sel = PORT_CLK_SEL_SPLL; pipe_config->port_clock = 135000 * 2; + } return true; } @@ -632,8 +660,6 @@ intel_crt_detect(struct drm_connector *connector, bool force) struct intel_load_detect_pipe tmp; struct drm_modeset_acquire_ctx ctx; - intel_runtime_pm_get(dev_priv); - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] force=%d\n", connector->base.id, connector->name, force); @@ -673,20 +699,23 @@ intel_crt_detect(struct drm_connector *connector, bool force) goto out; } + drm_modeset_acquire_init(&ctx, 0); + /* for pre-945g platforms use load detect */ if (intel_get_load_detect_pipe(connector, NULL, &tmp, &ctx)) { if (intel_crt_detect_ddc(connector)) status = connector_status_connected; else status = intel_crt_load_detect(crt); - intel_release_load_detect_pipe(connector, &tmp, &ctx); + intel_release_load_detect_pipe(connector, &tmp); } else status = connector_status_unknown; + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); + out: intel_display_power_put(dev_priv, power_domain); - intel_runtime_pm_put(dev_priv); - return status; } @@ -775,7 +804,7 @@ static const struct drm_encoder_funcs intel_crt_enc_funcs = { .destroy = intel_encoder_destroy, }; -static int __init intel_no_crt_dmi_callback(const struct dmi_system_id *id) +static int intel_no_crt_dmi_callback(const struct dmi_system_id *id) { DRM_INFO("Skipping CRT initialization for %s\n", id->ident); return 1; @@ -860,6 +889,8 @@ void intel_crt_init(struct drm_device *dev) if (HAS_DDI(dev)) { crt->base.get_config = hsw_crt_get_config; crt->base.get_hw_state = intel_ddi_get_hw_state; + crt->base.pre_enable = hsw_crt_pre_enable; + crt->base.post_disable = hsw_crt_post_disable; } else { crt->base.get_config = intel_crt_get_config; crt->base.get_hw_state = intel_crt_get_hw_state; @@ -869,7 +900,7 @@ void intel_crt_init(struct drm_device *dev) drm_connector_helper_add(connector, &intel_crt_connector_helper_funcs); - drm_sysfs_connector_add(connector); + drm_connector_register(connector); if (!I915_HAS_HOTPLUG(dev)) intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT; |