From patchwork Fri Jun 3 10:14:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Hogander, Jouni" X-Patchwork-Id: 12868950 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8DBA1CCA481 for ; Fri, 3 Jun 2022 10:14:31 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E5AFB10F5F8; Fri, 3 Jun 2022 10:14:30 +0000 (UTC) Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id E129110F5F8 for ; Fri, 3 Jun 2022 10:14:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1654251269; x=1685787269; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=hg2BGAoJGcYiB6mRDJKqmVi9eRHMfScgi4ogePCJxMQ=; b=gkabHzp4K1oT99ZE4jEtWUdXnosEzcYSP1OZncxFZqZj9LEcrEd8z3KJ AVw7tsq/9gGU8EMaZTTE03K/6AqpQ3LXHpjFGtqH97E4w1iFkqIV1KkFT VHMqQqj/gwP9otgi2j4m97GL87pjCw7Jd8uEcrn/V+Tj/ktlMjaWZoS6E oGKXstCRO7fgNJQxrjgPskTt/nWFTrx1Bb9WvBtD2GMspfEyABHHvQwDp cWmSLiuti5MO3H6zrc37hR3iD2bPNFTu/FB/ofBOVPz5esn6P5nX6S/Ub iM5Wzg7ZSF1xOlwv54eb76/rN+DAxMu/qBZR1yMZyn1zC5pdch2oCS+qL A==; X-IronPort-AV: E=McAfee;i="6400,9594,10366"; a="256081984" X-IronPort-AV: E=Sophos;i="5.91,274,1647327600"; d="scan'208";a="256081984" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Jun 2022 03:14:28 -0700 X-IronPort-AV: E=Sophos;i="5.91,274,1647327600"; d="scan'208";a="721694720" Received: from kaszymec-mobl1.ger.corp.intel.com (HELO jhogande-mobl1.ger.corp.intel.com) ([10.249.38.113]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Jun 2022 03:14:27 -0700 From: =?utf-8?q?Jouni_H=C3=B6gander?= To: intel-gfx@lists.freedesktop.org Date: Fri, 3 Jun 2022 13:14:10 +0300 Message-Id: <20220603101411.3087789-2-jouni.hogander@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220603101411.3087789-1-jouni.hogander@intel.com> References: <20220603101411.3087789-1-jouni.hogander@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Subject: [Intel-gfx] [PATCH 1/2] drm/i915/opregion: add function to check if headless sku X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Export headless sku bit (bit 13) from opregion->header->pcon as an interface to check if our device is headless configuration. Bspec: 53441 Signed-off-by: Jouni Högander --- drivers/gpu/drm/i915/display/intel_opregion.c | 12 ++++++++++++ drivers/gpu/drm/i915/display/intel_opregion.h | 7 +++++++ 2 files changed, 19 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_opregion.c b/drivers/gpu/drm/i915/display/intel_opregion.c index f31e8c3f8ce0..eab3f2e6b786 100644 --- a/drivers/gpu/drm/i915/display/intel_opregion.c +++ b/drivers/gpu/drm/i915/display/intel_opregion.c @@ -53,6 +53,8 @@ #define MBOX_ASLE_EXT BIT(4) /* Mailbox #5 */ #define MBOX_BACKLIGHT BIT(5) /* Mailbox #2 (valid from v3.x) */ +#define PCON_HEADLESS_SKU BIT(13) + struct opregion_header { u8 signature[16]; u32 size; @@ -1135,6 +1137,16 @@ struct edid *intel_opregion_get_edid(struct intel_connector *intel_connector) return new_edid; } +bool intel_opregion_headless_sku(struct drm_i915_private *i915) +{ + struct intel_opregion *opregion = &i915->opregion; + + if (!opregion->header) + return false; + + return opregion->header->pcon & PCON_HEADLESS_SKU; +} + void intel_opregion_register(struct drm_i915_private *i915) { struct intel_opregion *opregion = &i915->opregion; diff --git a/drivers/gpu/drm/i915/display/intel_opregion.h b/drivers/gpu/drm/i915/display/intel_opregion.h index 82cc0ba34af7..5ad96e1d8278 100644 --- a/drivers/gpu/drm/i915/display/intel_opregion.h +++ b/drivers/gpu/drm/i915/display/intel_opregion.h @@ -76,6 +76,8 @@ int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv, int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv); struct edid *intel_opregion_get_edid(struct intel_connector *connector); +bool intel_opregion_headless_sku(struct drm_i915_private *i915); + #else /* CONFIG_ACPI*/ static inline int intel_opregion_setup(struct drm_i915_private *dev_priv) @@ -127,6 +129,11 @@ intel_opregion_get_edid(struct intel_connector *connector) return NULL; } +bool intel_opregion_headless_sku(struct drm_i915_private *i915) +{ + return false; +} + #endif /* CONFIG_ACPI */ #endif