From 9cd300e038d492af4990b04e127e0bd2df64b1ca Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Fri, 19 Oct 2012 14:51:52 +0300 Subject: [PATCH] drm/i915: Move cached EDID to intel_connector Move the cached EDID from intel_dp and intel_lvds_connector to intel_connector. Unify cached EDID handling for LVDS and eDP, in preparation for adding more generic EDID caching later. Signed-off-by: Jani Nikula Reviewed-by: Jesse Barnes Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_dp.c | 61 +++++++++++++++++-------------- drivers/gpu/drm/i915/intel_drv.h | 5 ++- drivers/gpu/drm/i915/intel_lvds.c | 34 +++++++++++------ 3 files changed, 60 insertions(+), 40 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 2661c8e955d9..38305c93754c 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -2317,44 +2317,45 @@ g4x_dp_detect(struct intel_dp *intel_dp) static struct edid * intel_dp_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter) { - struct intel_dp *intel_dp = intel_attached_dp(connector); - struct edid *edid; - int size; + struct intel_connector *intel_connector = to_intel_connector(connector); - if (is_edp(intel_dp)) { - if (!intel_dp->edid) + /* use cached edid if we have one */ + if (intel_connector->edid) { + struct edid *edid; + int size; + + /* invalid edid */ + if (IS_ERR(intel_connector->edid)) return NULL; - size = (intel_dp->edid->extensions + 1) * EDID_LENGTH; + size = (intel_connector->edid->extensions + 1) * EDID_LENGTH; edid = kmalloc(size, GFP_KERNEL); if (!edid) return NULL; - memcpy(edid, intel_dp->edid, size); + memcpy(edid, intel_connector->edid, size); return edid; } - edid = drm_get_edid(connector, adapter); - return edid; + return drm_get_edid(connector, adapter); } static int intel_dp_get_edid_modes(struct drm_connector *connector, struct i2c_adapter *adapter) { - struct intel_dp *intel_dp = intel_attached_dp(connector); - int ret; + struct intel_connector *intel_connector = to_intel_connector(connector); - if (is_edp(intel_dp)) { - drm_mode_connector_update_edid_property(connector, - intel_dp->edid); - ret = drm_add_edid_modes(connector, intel_dp->edid); - drm_edid_to_eld(connector, - intel_dp->edid); - return intel_dp->edid_mode_count; + /* use cached edid if we have one */ + if (intel_connector->edid) { + /* invalid edid */ + if (IS_ERR(intel_connector->edid)) + return 0; + + return intel_connector_update_modes(connector, + intel_connector->edid); } - ret = intel_ddc_get_modes(connector, adapter); - return ret; + return intel_ddc_get_modes(connector, adapter); } @@ -2506,6 +2507,9 @@ intel_dp_destroy(struct drm_connector *connector) struct intel_dp *intel_dp = intel_attached_dp(connector); struct intel_connector *intel_connector = to_intel_connector(connector); + if (!IS_ERR_OR_NULL(intel_connector->edid)) + kfree(intel_connector->edid); + if (is_edp(intel_dp)) { intel_panel_destroy_backlight(dev); intel_panel_fini(&intel_connector->panel); @@ -2523,7 +2527,6 @@ static void intel_dp_encoder_destroy(struct drm_encoder *encoder) i2c_del_adapter(&intel_dp->adapter); drm_encoder_cleanup(encoder); if (is_edp(intel_dp)) { - kfree(intel_dp->edid); cancel_delayed_work_sync(&intel_dp->panel_vdd_work); ironlake_panel_vdd_off_sync(intel_dp); } @@ -2810,13 +2813,17 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port) ironlake_edp_panel_vdd_on(intel_dp); edid = drm_get_edid(connector, &intel_dp->adapter); if (edid) { - drm_mode_connector_update_edid_property(connector, - edid); - intel_dp->edid_mode_count = - drm_add_edid_modes(connector, edid); - drm_edid_to_eld(connector, edid); - intel_dp->edid = edid; + if (drm_add_edid_modes(connector, edid)) { + drm_mode_connector_update_edid_property(connector, edid); + drm_edid_to_eld(connector, edid); + } else { + kfree(edid); + edid = ERR_PTR(-EINVAL); + } + } else { + edid = ERR_PTR(-ENOENT); } + intel_connector->edid = edid; /* prefer fixed mode from EDID if available */ list_for_each_entry(scan, &connector->probed_modes, head) { diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 7fbb8ed447e4..26d70ea2f670 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -186,6 +186,9 @@ struct intel_connector { /* Panel info for eDP and LVDS */ struct intel_panel panel; + + /* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */ + struct edid *edid; }; struct intel_crtc { @@ -367,8 +370,6 @@ struct intel_dp { int backlight_off_delay; struct delayed_work panel_vdd_work; bool want_panel_vdd; - struct edid *edid; /* cached EDID for eDP */ - int edid_mode_count; struct intel_connector *attached_connector; }; diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 50b6124a6943..587ed0f31bda 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -44,7 +44,6 @@ struct intel_lvds_connector { struct intel_connector base; struct notifier_block lid_notifier; - struct edid *edid; int fitting_mode; }; @@ -460,8 +459,14 @@ static int intel_lvds_get_modes(struct drm_connector *connector) struct drm_device *dev = connector->dev; struct drm_display_mode *mode; - if (lvds_connector->edid) - return drm_add_edid_modes(connector, lvds_connector->edid); + /* use cached edid if we have one */ + if (lvds_connector->base.edid) { + /* invalid edid */ + if (IS_ERR(lvds_connector->base.edid)) + return 0; + + return drm_add_edid_modes(connector, lvds_connector->base.edid); + } mode = drm_mode_duplicate(dev, lvds_connector->base.panel.fixed_mode); if (mode == NULL) @@ -553,6 +558,9 @@ static void intel_lvds_destroy(struct drm_connector *connector) if (lvds_connector->lid_notifier.notifier_call) acpi_lid_notifier_unregister(&lvds_connector->lid_notifier); + if (!IS_ERR_OR_NULL(lvds_connector->base.edid)) + kfree(lvds_connector->base.edid); + intel_panel_destroy_backlight(connector->dev); intel_panel_fini(&lvds_connector->base.panel); @@ -922,6 +930,7 @@ bool intel_lvds_init(struct drm_device *dev) struct drm_encoder *encoder; struct drm_display_mode *scan; /* *modes, *bios_mode; */ struct drm_display_mode *fixed_mode = NULL; + struct edid *edid; struct drm_crtc *crtc; u32 lvds; int pipe; @@ -1021,18 +1030,21 @@ bool intel_lvds_init(struct drm_device *dev) * Attempt to get the fixed panel mode from DDC. Assume that the * preferred mode is the right one. */ - lvds_connector->edid = drm_get_edid(connector, - intel_gmbus_get_adapter(dev_priv, pin)); - if (lvds_connector->edid) { - if (drm_add_edid_modes(connector, lvds_connector->edid)) { + edid = drm_get_edid(connector, intel_gmbus_get_adapter(dev_priv, pin)); + if (edid) { + if (drm_add_edid_modes(connector, edid)) { drm_mode_connector_update_edid_property(connector, - lvds_connector->edid); + edid); } else { - kfree(lvds_connector->edid); - lvds_connector->edid = NULL; + kfree(edid); + edid = ERR_PTR(-EINVAL); } + } else { + edid = ERR_PTR(-ENOENT); } - if (!lvds_connector->edid) { + lvds_connector->base.edid = edid; + + if (IS_ERR_OR_NULL(edid)) { /* Didn't get an EDID, so * Set wide sync ranges so we get all modes * handed to valid_mode for checking -- 2.30.2