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drm/i915: Refactor VBT fixed mode handling

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LVDS and eDP have essentially the same code for grabbing the
fixed mode from VBT. Pull that code to a common location.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190321132446.22394-3-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2019-03-21 15:24:43 +02:00
parent 8f49673ef9
commit 325710d3d4
4 changed files with 34 additions and 21 deletions
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11
drivers/gpu/drm/i915/intel_dp.c
View File

@ -7114,15 +7114,8 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
downclock_mode = intel_dp_drrs_init(intel_connector, fixed_mode);
/* fallback to VBT if available for eDP */
if (!fixed_mode && dev_priv->vbt.lfp_lvds_vbt_mode) {
fixed_mode = drm_mode_duplicate(dev,
dev_priv->vbt.lfp_lvds_vbt_mode);
if (fixed_mode) {
fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
connector->display_info.width_mm = fixed_mode->width_mm;
connector->display_info.height_mm = fixed_mode->height_mm;
}
}
if (!fixed_mode)
fixed_mode = intel_panel_vbt_fixed_mode(intel_connector);
mutex_unlock(&dev->mode_config.mutex);
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {

2
drivers/gpu/drm/i915/intel_drv.h
View File

@ -2159,6 +2159,8 @@ extern struct drm_display_mode *intel_find_panel_downclock(
struct drm_connector *connector);
struct drm_display_mode *
intel_panel_edid_fixed_mode(struct intel_connector *connector);
struct drm_display_mode *
intel_panel_vbt_fixed_mode(struct intel_connector *connector);
#if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
int intel_backlight_device_register(struct intel_connector *connector);

15
drivers/gpu/drm/i915/intel_lvds.c
View File

@ -953,18 +953,9 @@ void intel_lvds_init(struct drm_i915_private *dev_priv)
goto out;
/* Failed to get EDID, what about VBT? */
if (dev_priv->vbt.lfp_lvds_vbt_mode) {
DRM_DEBUG_KMS("using mode from VBT: ");
drm_mode_debug_printmodeline(dev_priv->vbt.lfp_lvds_vbt_mode);
fixed_mode = drm_mode_duplicate(dev, dev_priv->vbt.lfp_lvds_vbt_mode);
if (fixed_mode) {
fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
connector->display_info.width_mm = fixed_mode->width_mm;
connector->display_info.height_mm = fixed_mode->height_mm;
goto out;
}
}
fixed_mode = intel_panel_vbt_fixed_mode(intel_connector);
if (fixed_mode)
goto out;
/*
* If we didn't get EDID, try checking if the panel is already turned

27
drivers/gpu/drm/i915/intel_panel.c
View File

@ -141,6 +141,33 @@ intel_panel_edid_fixed_mode(struct intel_connector *connector)
return fixed_mode;
}
struct drm_display_mode *
intel_panel_vbt_fixed_mode(struct intel_connector *connector)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct drm_display_info *info = &connector->base.display_info;
struct drm_display_mode *fixed_mode;
if (!dev_priv->vbt.lfp_lvds_vbt_mode)
return NULL;
fixed_mode = drm_mode_duplicate(&dev_priv->drm,
dev_priv->vbt.lfp_lvds_vbt_mode);
if (!fixed_mode)
return NULL;
fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
DRM_DEBUG_KMS("[CONNECTOR:%d:%s] using mode from VBT: ",
connector->base.base.id, connector->base.name);
drm_mode_debug_printmodeline(fixed_mode);
info->width_mm = fixed_mode->width_mm;
info->height_mm = fixed_mode->height_mm;
return fixed_mode;
}
/* adjusted_mode has been preset to be the panel's fixed mode */
void
intel_pch_panel_fitting(struct intel_crtc *intel_crtc,