diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 1c264c17b6e4..2d4a6936ab2b 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -3821,221 +3821,6 @@ bool intel_crtc_get_pipe_config(struct intel_crtc_state *crtc_state) return true; } -/* VESA 640x480x72Hz mode to set on the pipe */ -static const struct drm_display_mode load_detect_mode = { - DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664, - 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC), -}; - -static int intel_modeset_disable_planes(struct drm_atomic_state *state, - struct drm_crtc *crtc) -{ - struct drm_plane *plane; - struct drm_plane_state *plane_state; - int ret, i; - - ret = drm_atomic_add_affected_planes(state, crtc); - if (ret) - return ret; - - for_each_new_plane_in_state(state, plane, plane_state, i) { - if (plane_state->crtc != crtc) - continue; - - ret = drm_atomic_set_crtc_for_plane(plane_state, NULL); - if (ret) - return ret; - - drm_atomic_set_fb_for_plane(plane_state, NULL); - } - - return 0; -} - -int intel_get_load_detect_pipe(struct drm_connector *connector, - struct intel_load_detect_pipe *old, - struct drm_modeset_acquire_ctx *ctx) -{ - struct intel_encoder *encoder = - intel_attached_encoder(to_intel_connector(connector)); - struct intel_crtc *possible_crtc; - struct intel_crtc *crtc = NULL; - struct drm_device *dev = encoder->base.dev; - struct drm_i915_private *dev_priv = to_i915(dev); - struct drm_mode_config *config = &dev->mode_config; - struct drm_atomic_state *state = NULL, *restore_state = NULL; - struct drm_connector_state *connector_state; - struct intel_crtc_state *crtc_state; - int ret; - - drm_dbg_kms(&dev_priv->drm, "[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", - connector->base.id, connector->name, - encoder->base.base.id, encoder->base.name); - - old->restore_state = NULL; - - drm_WARN_ON(dev, !drm_modeset_is_locked(&config->connection_mutex)); - - /* - * Algorithm gets a little messy: - * - * - if the connector already has an assigned crtc, use it (but make - * sure it's on first) - * - * - try to find the first unused crtc that can drive this connector, - * and use that if we find one - */ - - /* See if we already have a CRTC for this connector */ - if (connector->state->crtc) { - crtc = to_intel_crtc(connector->state->crtc); - - ret = drm_modeset_lock(&crtc->base.mutex, ctx); - if (ret) - goto fail; - - /* Make sure the crtc and connector are running */ - goto found; - } - - /* Find an unused one (if possible) */ - for_each_intel_crtc(dev, possible_crtc) { - if (!(encoder->base.possible_crtcs & - drm_crtc_mask(&possible_crtc->base))) - continue; - - ret = drm_modeset_lock(&possible_crtc->base.mutex, ctx); - if (ret) - goto fail; - - if (possible_crtc->base.state->enable) { - drm_modeset_unlock(&possible_crtc->base.mutex); - continue; - } - - crtc = possible_crtc; - break; - } - - /* - * If we didn't find an unused CRTC, don't use any. - */ - if (!crtc) { - drm_dbg_kms(&dev_priv->drm, - "no pipe available for load-detect\n"); - ret = -ENODEV; - goto fail; - } - -found: - state = drm_atomic_state_alloc(dev); - restore_state = drm_atomic_state_alloc(dev); - if (!state || !restore_state) { - ret = -ENOMEM; - goto fail; - } - - state->acquire_ctx = ctx; - to_intel_atomic_state(state)->internal = true; - - restore_state->acquire_ctx = ctx; - to_intel_atomic_state(restore_state)->internal = true; - - connector_state = drm_atomic_get_connector_state(state, connector); - if (IS_ERR(connector_state)) { - ret = PTR_ERR(connector_state); - goto fail; - } - - ret = drm_atomic_set_crtc_for_connector(connector_state, &crtc->base); - if (ret) - goto fail; - - crtc_state = intel_atomic_get_crtc_state(state, crtc); - if (IS_ERR(crtc_state)) { - ret = PTR_ERR(crtc_state); - goto fail; - } - - crtc_state->uapi.active = true; - - ret = drm_atomic_set_mode_for_crtc(&crtc_state->uapi, - &load_detect_mode); - if (ret) - goto fail; - - ret = intel_modeset_disable_planes(state, &crtc->base); - if (ret) - goto fail; - - ret = PTR_ERR_OR_ZERO(drm_atomic_get_connector_state(restore_state, connector)); - if (!ret) - ret = PTR_ERR_OR_ZERO(drm_atomic_get_crtc_state(restore_state, &crtc->base)); - if (!ret) - ret = drm_atomic_add_affected_planes(restore_state, &crtc->base); - if (ret) { - drm_dbg_kms(&dev_priv->drm, - "Failed to create a copy of old state to restore: %i\n", - ret); - goto fail; - } - - ret = drm_atomic_commit(state); - if (ret) { - drm_dbg_kms(&dev_priv->drm, - "failed to set mode on load-detect pipe\n"); - goto fail; - } - - old->restore_state = restore_state; - drm_atomic_state_put(state); - - /* let the connector get through one full cycle before testing */ - intel_crtc_wait_for_next_vblank(crtc); - - return true; - -fail: - if (state) { - drm_atomic_state_put(state); - state = NULL; - } - if (restore_state) { - drm_atomic_state_put(restore_state); - restore_state = NULL; - } - - if (ret == -EDEADLK) - return ret; - - return false; -} - -void intel_release_load_detect_pipe(struct drm_connector *connector, - struct intel_load_detect_pipe *old, - struct drm_modeset_acquire_ctx *ctx) -{ - struct intel_encoder *intel_encoder = - intel_attached_encoder(to_intel_connector(connector)); - struct drm_i915_private *i915 = to_i915(intel_encoder->base.dev); - struct drm_encoder *encoder = &intel_encoder->base; - struct drm_atomic_state *state = old->restore_state; - int ret; - - drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n", - connector->base.id, connector->name, - encoder->base.id, encoder->name); - - if (!state) - return; - - ret = drm_atomic_helper_commit_duplicated_state(state, ctx); - if (ret) - drm_dbg_kms(&i915->drm, - "Couldn't release load detect pipe: %i\n", ret); - drm_atomic_state_put(state); -} - static int i9xx_pll_refclk(struct drm_device *dev, const struct intel_crtc_state *pipe_config) { |