From patchwork Wed Sep 18 14:43:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Nautiyal, Ankit K" X-Patchwork-Id: 13806959 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 D05A9CCD1BB for ; Wed, 18 Sep 2024 14:42:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7119A10E5C5; Wed, 18 Sep 2024 14:42:08 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="OjKdyAqj"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.12]) by gabe.freedesktop.org (Postfix) with ESMTPS id 55ABC10E5C1; Wed, 18 Sep 2024 14:42:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1726670526; x=1758206526; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=a3Rti1g62oPouXAXKnvPjBwU69Ba8266OeenbnazLyE=; b=OjKdyAqjPI5xHhAnfNHmastffsUwmewo0Slr2sjeOqLJ0qmGMaIJLzJF mvgpgACe+VsAeKrIgX+ZbIzZGzd/SoY7fBVw2ZlSpUouLVQAMwh2cLdBD ka52M+vcQePP3OrK4vtY3Va9VRscTmJhmg7kODb37O/+5z279jEv49Vr0 q6dSEBsbJn8lN/Jji3S19O/kXl1lvOWt2XVEiX3rR7aJYVi0MaaSLgzRO jqWJohS4qaajQasr1Lf2E8axwBft2d70LrgNFufyob/oAZhOebscdCDpk LZa80Q/YZvnHRvSPP2iuThXEnHWKLGYRP2uABndKTHSLuAEnP7ZLjs8to A==; X-CSE-ConnectionGUID: 74eRMh/vSNq6O765MpSDag== X-CSE-MsgGUID: OHvbo45lQa+lB4uxLzz78g== X-IronPort-AV: E=McAfee;i="6700,10204,11199"; a="29481727" X-IronPort-AV: E=Sophos;i="6.10,239,1719903600"; d="scan'208";a="29481727" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2024 07:42:05 -0700 X-CSE-ConnectionGUID: VpL2iO1vSdytfSGjpbhtQw== X-CSE-MsgGUID: +ntuk9tTQyuB0K6NIRh6WQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,239,1719903600"; d="scan'208";a="69200379" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by fmviesa006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2024 07:42:03 -0700 From: Ankit Nautiyal To: intel-gfx@lists.freedesktop.org Cc: intel-xe@lists.freedesktop.org, suraj.kandpal@intel.com, ville.syrjala@linux.intel.com Subject: [PATCH 06/15] drm/i915/display: Add debugfs support to avoid joiner Date: Wed, 18 Sep 2024 20:13:34 +0530 Message-ID: <20240918144343.2876184-7-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240918144343.2876184-1-ankit.k.nautiyal@intel.com> References: <20240918144343.2876184-1-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 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" Currently debugfs for joiner can take a value of 0->dont care and 2->join 2 pipes. Add option to force to use only 1 pipe. If debugfs is set to 1, force to exactly one pipe (ie. no joiner despite what the automagic logic is saying). Signed-off-by: Ankit Nautiyal --- drivers/gpu/drm/i915/display/intel_display_debugfs.c | 2 ++ drivers/gpu/drm/i915/display/intel_dp.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c index 5775413c6763..85742400348f 100644 --- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c +++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c @@ -1533,6 +1533,8 @@ static ssize_t i915_joiner_write(struct file *file, switch (force_join_pipes) { case 0: fallthrough; + case 1: + fallthrough; case 2: connector->force_joined_pipes = force_join_pipes; break; diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 96ad048b68cf..369829ea5a12 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1288,6 +1288,8 @@ int intel_dp_compute_num_pipes(struct intel_dp *intel_dp, int hdisplay, int clock) { switch (connector->force_joined_pipes) { + case 1: + fallthrough; case 2: return connector->force_joined_pipes; default: