From mboxrd@z Thu Jan 1 00:00:00 1970 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 734A8C982C1 for ; Wed, 16 Sep 2026 08:29:49 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B58C210E39C; Wed, 16 Sep 2026 08:29:48 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="h+fu89eN"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) by gabe.freedesktop.org (Postfix) with ESMTPS id 18AC510E21A; Wed, 16 Sep 2026 08:29:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1789547387; x=1821083387; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=Xvx/gwYUnM0bNcgmPpO0KJr34qy1+2LGndUC6rdzyfk=; b=h+fu89eNFF7MaWw4LS8+jTug+mj3kRjCQjtuC+qGKUZPBgsm4KHPSJCC t4dhwsyxB6Ucmrc2F+Qzt3AomNWYUm21/33KxX10v3unjFQzjceHRGbnV IK6R+ifwBh7mbu9SPcgip6y6D5iYZVO/n1yBV++R+NqgFDED8zlGkZCzM wdFH+fsgG4FonFXV8QunR0MjOym2zg0GbgP6ZTlu6GY+lAGjJfIGS3+V0 fJ/jjLmJed4jvESVRDubd8Ztt6vsneFOOivULrpF7VykQKTprq/CDx2Wc igA55Un3QhDOy1OvpJyUFiKdozWb8V902M5aX7gS4YJDlPzS/7AP9b4eY Q==; X-CSE-ConnectionGUID: GfHi23cRS3+hiy7YmV1eww== X-CSE-MsgGUID: D9YxdOa7SHaTcYjI9X2R4Q== X-IronPort-AV: E=McAfee;i="6800,10657,11905"; a="89858816" X-IronPort-AV: E=Sophos;i="6.27,103,1787036400"; d="scan'208";a="89858816" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Sep 2026 01:29:47 -0700 X-CSE-ConnectionGUID: Bsydz90WRg2ZgEE9hwddcA== X-CSE-MsgGUID: 6yCp8dw3Rq6KjelyjRo3aA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,103,1787036400"; d="scan'208";a="277017926" Received: from kniemiec-mobl1.ger.corp.intel.com (HELO localhost) ([10.245.244.147]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Sep 2026 01:29:45 -0700 From: Jani Nikula To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Cc: jani.nikula@intel.com Subject: [PATCH 00/11] drm/i915/display: switch to modern drm_dp_dpcd* accessors Date: Wed, 16 Sep 2026 11:29:31 +0300 Message-ID: X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs Bertel Jungin Aukio 5, 02600 Espoo, Finland Content-Transfer-Encoding: 8bit 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" Switch to the modern DPCD access functions that return negative error codes on errors, -EIO for incomplete access, and 0 on success. Jani Nikula (11): drm/i915/lspcon: use u8 variable to hold 1-byte DPCD reads drm/i915/lspcon: switch to drm_dp_dpcd_{read_byte,write_byte,write_data} drm/i915/alpm: switch to drm_dp_dpcd_{read_byte,write_byte} drm/i915/ddi: switch to drm_dp_dpcd_write_byte() drm/i915/lspcon: switch to drm_dp_dpcd_{read_byte,read_data,write_byte,write_data}() drm/i915/dp: switch to drm_dp_dpcd_{read_byte,read_data,write_byte,write_data} drm/i915/hdcp: switch to drm_dp_dpcd_{read_byte,read_data,write_data}() drm/i915/dp: switch link training to drm_dp_dpcd_{read_byte,read_data,write_byte,write_data}() drm/i915/dp-mst: switch to drm_dp_dpcd_read_byte() drm/i915/dp-test: switch to drm_dp_dpcd_{read_byte,read_data,write_byte,write_data}() drm/i915/psr: switch to drm_dp_dpcd_{read_byte,read_data,write_byte,write_data}() drivers/gpu/drm/i915/display/intel_alpm.c | 10 +- drivers/gpu/drm/i915/display/intel_ddi.c | 16 +- drivers/gpu/drm/i915/display/intel_dp.c | 142 ++++++++------ .../drm/i915/display/intel_dp_aux_backlight.c | 51 +++--- drivers/gpu/drm/i915/display/intel_dp_hdcp.c | 173 +++++++++--------- .../drm/i915/display/intel_dp_link_training.c | 48 ++--- drivers/gpu/drm/i915/display/intel_dp_mst.c | 2 +- drivers/gpu/drm/i915/display/intel_dp_test.c | 57 +++--- drivers/gpu/drm/i915/display/intel_lspcon.c | 48 +++-- drivers/gpu/drm/i915/display/intel_psr.c | 65 +++---- 10 files changed, 326 insertions(+), 286 deletions(-) -- 2.47.3