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 C68CBFF8875 for ; Thu, 30 Apr 2026 13:27:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5550910E402; Thu, 30 Apr 2026 13:27:04 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="MJVZrMpo"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) by gabe.freedesktop.org (Postfix) with ESMTPS id C00D010E402; Thu, 30 Apr 2026 13:27:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1777555622; x=1809091622; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=7ciEt+6Cwvk1amiFekkaqrQdGnMkdRI/J8yDvgkQoXw=; b=MJVZrMpoRDnyJ1OH/Ui0lGsFl8KMvdb7WzxOZPQ7tVIZnG8BW36pqO7I WxXO2iDlzzAiNWdiC8XrWQ3FJZJsPVplGjfQNmkTD1T6pDVfVTYfiHlg2 5G7rljbEbew+wg5CsxTvrlwIZzYqas15hSeIlcJnRarb5P7ea/AkLyBTD TmburWlToKKFTHnjT1VT8dFCPMv++/9TSMfqgk2nl6HTNj/E2nBJ932/T rNLJMvMjbhb5QBoTyb6N/nfXRTDHgDaKrnuU42OsGpyO+LDzDRoi8tF+U bYeubyWalrccCzZehXR0WtnkE5jU6GZ+Plow5WINiQ/I9sfs/OJTBrbpU g==; X-CSE-ConnectionGUID: jdOfadUCTMCz/vGaQogIIA== X-CSE-MsgGUID: sUOaolpOTlyVkSld96dMcw== X-IronPort-AV: E=McAfee;i="6800,10657,11771"; a="78398718" X-IronPort-AV: E=Sophos;i="6.23,208,1770624000"; d="scan'208";a="78398718" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Apr 2026 06:27:02 -0700 X-CSE-ConnectionGUID: EJzjVB5bRUa63AuYVFu5Wg== X-CSE-MsgGUID: P6gRI9a2TWih8Mn8SE00ng== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,208,1770624000"; d="scan'208";a="257919840" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by fmviesa002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Apr 2026 06:26:59 -0700 From: Ankit Nautiyal To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Cc: jani.nikula@linux.intel.com, ville.syrjala@linux.intel.com, Ankit Nautiyal Subject: [PATCH 0/5] drm/i915/intel_panel: Reduce redundant intel_panel_fixed_mode() calls Date: Thu, 30 Apr 2026 18:42:15 +0530 Message-ID: <20260430131220.3891497-1-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.45.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" This series addresses feedback from Jani Nikula to reduce intel_panel_fixed_mode() calls in encoder code [1]. Currently, encoder code calls intel_panel_fixed_mode() directly to check for or get fixed mode state, then calls intel_panel_mode_valid() or intel_panel_compute_config(), which repeat the lookup internally. This series avoids those redundant calls by: - Extending intel_panel_mode_valid() to return the effective target clock via out parameter - Dropping direct intel_panel_fixed_mode() calls from encoder mode_valid paths - Dropping redundant fixed mode checks from compute_config paths Note: intel_sdvo.c retains two intel_panel_fixed_mode() calls in intel_sdvo_create_preferred_input_timing() and intel_sdvo_pre_enable() as they seem to indeed need the fixed modes. It might need a bit more work to get rid of them. [1] https://lore.kernel.org/intel-gfx/0fb737c2484e116721b944befff146d9069ecee3@intel.com/ Ankit Nautiyal (5): drm/i915/intel_sdvo: Check fixed_mode->clock against max_dotclock in mode_valid drm/i915/intel_panel: Avoid calls to intel_panel_fixed_mode() in mode_valid drm/i915/intel_dvo: Drop call to intel_panel_fixed_mode() from compute_config drm/i915/intel_sdvo: Drop call to intel_panel_fixed_mode() from compute_config drm/i915/dp: Drop call to intel_panel_fixed_mode() from compute_config drivers/gpu/drm/i915/display/intel_dp.c | 12 +++------ drivers/gpu/drm/i915/display/intel_dsi.c | 7 +++--- drivers/gpu/drm/i915/display/intel_dvo.c | 29 ++++++---------------- drivers/gpu/drm/i915/display/intel_lvds.c | 7 +++--- drivers/gpu/drm/i915/display/intel_panel.c | 9 ++++++- drivers/gpu/drm/i915/display/intel_panel.h | 3 ++- drivers/gpu/drm/i915/display/intel_sdvo.c | 11 +++++--- 7 files changed, 34 insertions(+), 44 deletions(-) -- 2.45.2