From: Radhakrishna Sripada Date: Wed, 28 Feb 2024 21:32:33 +0000 (-0800) Subject: drm/i915: Extract opregion vbt presence check X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9d9bb71f3e115b75ec5e38f087e159a87fc0413a;p=linux.git drm/i915: Extract opregion vbt presence check We want to later change intel_opregion_get_vbt to duplicate the vbt memory if present, which would be an overkill when we just want to peek into the presence of opregion vbt. Carve out the presence check into its own function to use in places where only the presence of vbt is required. Suggested-by: Jani Nikula Signed-off-by: Radhakrishna Sripada Reviewed-by: Jani Nikula Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20240228213235.2495611-5-radhakrishna.sripada@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index 7d50d026026fb..cbbef39c69cbe 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -3414,8 +3414,7 @@ bool intel_bios_is_lvds_present(struct drm_i915_private *i915, u8 *i2c_pin) * additional data. Trust that if the VBT was written into * the OpRegion then they have validated the LVDS's existence. */ - if (intel_opregion_get_vbt(i915, NULL)) - return true; + return intel_opregion_vbt_present(i915); } return false; diff --git a/drivers/gpu/drm/i915/display/intel_opregion.c b/drivers/gpu/drm/i915/display/intel_opregion.c index 5d07a002edaac..58dfecb617b07 100644 --- a/drivers/gpu/drm/i915/display/intel_opregion.c +++ b/drivers/gpu/drm/i915/display/intel_opregion.c @@ -1131,6 +1131,16 @@ const struct drm_edid *intel_opregion_get_edid(struct intel_connector *intel_con return drm_edid; } +bool intel_opregion_vbt_present(struct drm_i915_private *i915) +{ + struct intel_opregion *opregion = i915->display.opregion; + + if (!opregion || !opregion->vbt) + return false; + + return true; +} + const void *intel_opregion_get_vbt(struct drm_i915_private *i915, size_t *size) { struct intel_opregion *opregion = i915->display.opregion; diff --git a/drivers/gpu/drm/i915/display/intel_opregion.h b/drivers/gpu/drm/i915/display/intel_opregion.h index 0bec224f711fc..63573c38d735c 100644 --- a/drivers/gpu/drm/i915/display/intel_opregion.h +++ b/drivers/gpu/drm/i915/display/intel_opregion.h @@ -53,6 +53,7 @@ int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv, int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv); const struct drm_edid *intel_opregion_get_edid(struct intel_connector *connector); +bool intel_opregion_vbt_present(struct drm_i915_private *i915); const void *intel_opregion_get_vbt(struct drm_i915_private *i915, size_t *size); bool intel_opregion_headless_sku(struct drm_i915_private *i915);