From patchwork Fri May 10 15:08:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jani Nikula X-Patchwork-Id: 13661734 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 12647C25B10 for ; Fri, 10 May 2024 15:09:01 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EC58110ED60; Fri, 10 May 2024 15:08:59 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="NmYdxwfH"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.17]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9BB7410ED60; Fri, 10 May 2024 15:08:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1715353739; x=1746889739; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=okdSamReSXfiRgy3B5DAMHJ9bmN9NST/nJOWkPfP060=; b=NmYdxwfH0SJyW+WHpsLSs3uUpAcZe7OnWeBbdNAIG00tzb2BssLwDJIG lZ5/YjDSCziru3wNCQok315MDygcTKhq9k6aUtQVQA10G2IcccqbbvY4Y tynIah82OuYK8sewvC4XTS/KTevLm0K8xYnm9TmyX2/jZzdrNTMMOT9o9 /wf3qm1hAKL3x3xa57AHDR7LUIksAGw/rsh6UYip/EoQ8oThcYE2wzhKY eXnbQenbEm3ay/1hWy0kSgrn7iAzK0afbeBjTnrSz1bGwUlnExiu7Fr4a wnyAB2Si8UAaGJbPvC2oebAZ/7+odihzFFWEvIdUqC4ID1na84QGhkV+K Q==; X-CSE-ConnectionGUID: eIZiRkbYSbWRCL5LuGm8pQ== X-CSE-MsgGUID: xgMMb9CPSROUZYBOzNVrJg== X-IronPort-AV: E=McAfee;i="6600,9927,11068"; a="11469183" X-IronPort-AV: E=Sophos;i="6.08,151,1712646000"; d="scan'208";a="11469183" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 May 2024 08:08:58 -0700 X-CSE-ConnectionGUID: lfOe0sIqQli66kmc/zKdVw== X-CSE-MsgGUID: oFPGclBFQyWjV2Tq3OV9pw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,151,1712646000"; d="scan'208";a="34081535" Received: from ettammin-desk.ger.corp.intel.com (HELO localhost) ([10.245.246.180]) by fmviesa005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 May 2024 08:08:55 -0700 From: Jani Nikula To: dri-devel@lists.freedesktop.org Cc: amd-gfx@lists.freedesktop.org, nouveau@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, jani.nikula@intel.com Subject: [RESEND 6/6] drm/connector: update edid_blob_ptr documentation Date: Fri, 10 May 2024 18:08:13 +0300 Message-Id: X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo 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" Accessing the EDID via edid_blob_ptr causes chicken-and-egg problems. Keep edid_blob_ptr as the userspace interface that should be accessed via dedicated functions. Signed-off-by: Jani Nikula Reviewed-by: Chaitanya Kumar Borah --- include/drm/drm_connector.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index fe88d7fc6b8f..58ee9adf9091 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1636,8 +1636,12 @@ struct drm_connector { /** * @edid_blob_ptr: DRM property containing EDID if present. Protected by - * &drm_mode_config.mutex. This should be updated only by calling + * &drm_mode_config.mutex. + * + * This must be updated only by calling drm_edid_connector_update() or * drm_connector_update_edid_property(). + * + * This must not be used by drivers directly. */ struct drm_property_blob *edid_blob_ptr;