From: Ville Syrjälä Date: Tue, 19 Mar 2024 09:24:43 +0000 (+0200) Subject: drm/i915/bios: Use the platform's port_mask when there is no VBT X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1965dbd535eec6064803484eb014a2d9a0cf6a30;p=linux.git drm/i915/bios: Use the platform's port_mask when there is no VBT When we have no VBT we currently assume ports A-F are all pontially valid for every platform. That is nonsense. Grab the bitmask of valid ports from the runtime info instead. Although the defaults we actually fill here look semi-sensible only for hsw-skl era hardware. Dunno if we should try to do something more appropriate here for other platforms, or just try to nuke the whole thing? Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20240319092443.15769-2-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula --- diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index c13a98431a7b1..2abd2d7ceda2b 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -2890,9 +2890,8 @@ init_vbt_panel_defaults(struct intel_panel *panel) static void init_vbt_missing_defaults(struct drm_i915_private *i915) { + unsigned int ports = DISPLAY_RUNTIME_INFO(i915)->port_mask; enum port port; - int ports = BIT(PORT_A) | BIT(PORT_B) | BIT(PORT_C) | - BIT(PORT_D) | BIT(PORT_E) | BIT(PORT_F); if (!HAS_DDI(i915) && !IS_CHERRYVIEW(i915)) return;