From patchwork Mon Nov 28 07:15:44 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Nautiyal, Ankit K" X-Patchwork-Id: 13057083 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 0ABB6C4321E for ; Mon, 28 Nov 2022 07:16:00 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 44A1510E1C9; Mon, 28 Nov 2022 07:15:59 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0657D10E1C4 for ; Mon, 28 Nov 2022 07:15:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1669619714; x=1701155714; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=V1vIfGv9DrQJFpqm1vRuwGDzVo8O74HMMgqwVJd27wU=; b=J+AXqPwhVgYU3B8RhEN+iAoX5bgeqjHhJQVTvnozYfI0QHXqWh5fEZKz nUu1c4CIGnrHn1dzuKDYy7mi/9/T5eSTMiRBnKl+lIjdvdqQIw0CkpJHW xuKLFZSwjDB+gQ/USYhe7cccC1mB5wkyfJO/LqxsWIs3VQ1IPDyT0DYy3 6mQwUQUa9Hy/h54XbKCr1fFhgt6i3o13q193IDkgb7XtJ10/qCAcn5lyG HvRlcddEeGYZ39WE2Dzj30/WbMcCb4A41YmBkxmBtsmZiLjywYXYr4kVl ipSIvWQizPBg65k/gxMO2fAvdJb1NmxSRxLB4GqUxW4aRcNKD4CYfSO4O g==; X-IronPort-AV: E=McAfee;i="6500,9779,10544"; a="315919529" X-IronPort-AV: E=Sophos;i="5.96,199,1665471600"; d="scan'208";a="315919529" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Nov 2022 23:15:13 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10544"; a="785518653" X-IronPort-AV: E=Sophos;i="5.96,199,1665471600"; d="scan'208";a="785518653" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Nov 2022 23:15:11 -0800 From: Ankit Nautiyal To: intel-gfx@lists.freedesktop.org Date: Mon, 28 Nov 2022 12:45:44 +0530 Message-Id: <20221128071544.4115881-12-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221128071544.4115881-1-ankit.k.nautiyal@intel.com> References: <20221128071544.4115881-1-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v5 11/11] drm/i915/dp: Add a wrapper to check frl/tmds downstream constraints 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" Add a wrapper function to check dp_downstream clock/bandwidth constraints. Based on whether the sink supports FRL/TMDS the wrapper calls the appropriate FRL/TMDS functions. Signed-off-by: Ankit Nautiyal --- drivers/gpu/drm/i915/display/intel_dp.c | 51 +++++++++++-------------- 1 file changed, 23 insertions(+), 28 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 3e258e487d9e..ce4684141fb1 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1012,6 +1012,18 @@ intel_dp_frl_bw_valid(struct intel_dp *intel_dp, int target_clock, return MODE_OK; } +static enum drm_mode_status +intel_dp_hdmi_bw_check(struct intel_dp *intel_dp, + int target_clock, int bpc, + enum intel_output_format sink_format, + bool is_frl) +{ + if (is_frl) + return intel_dp_frl_bw_valid(intel_dp, target_clock, 8, sink_format); + + return intel_dp_tmds_clock_valid(intel_dp, target_clock, 8, sink_format, true); +} + static enum drm_mode_status intel_dp_mode_valid_downstream(struct intel_connector *connector, const struct drm_display_mode *mode, @@ -1021,48 +1033,31 @@ intel_dp_mode_valid_downstream(struct intel_connector *connector, const struct drm_display_info *info = &connector->base.display_info; enum drm_mode_status status; bool ycbcr_420_only = drm_mode_is_420_only(info, mode); + bool is_frl; enum intel_output_format sink_format; + int bpc = 8; /* Assume 8bpc for the DP++/HDMI/DVI TMDS/FRL bw heck */ - ycbcr_420_only = drm_mode_is_420_only(info, mode); + if (ycbcr_420_only && connector->base.ycbcr_420_allowed) + sink_format = INTEL_OUTPUT_FORMAT_YCBCR420; + else + sink_format = INTEL_OUTPUT_FORMAT_RGB; /* If PCON supports FRL MODE, check FRL bandwidth constraints */ - if (intel_dp->dfp.pcon_max_frl_bw) { - - if (ycbcr_420_only && connector->base.ycbcr_420_allowed) - sink_format = INTEL_OUTPUT_FORMAT_YCBCR420; - else - sink_format = INTEL_OUTPUT_FORMAT_RGB; - - /* Assume 8bpc for the HDMI2.1 FRL BW check */ - status = intel_dp_frl_bw_valid(intel_dp, target_clock, 8, sink_format); - if (status != MODE_OK) { - if (sink_format == INTEL_OUTPUT_FORMAT_YCBCR420 || - !drm_mode_is_420_also(info, mode)) - return status; - sink_format = INTEL_OUTPUT_FORMAT_YCBCR420; - status = intel_dp_frl_bw_valid(intel_dp, target_clock, 8, sink_format); - if (status != MODE_OK) - return status; - } + is_frl = intel_dp->dfp.pcon_max_frl_bw ? true : false; - return MODE_OK; - } - - if (intel_dp->dfp.max_dotclock && + if (!is_frl && intel_dp->dfp.max_dotclock && target_clock > intel_dp->dfp.max_dotclock) return MODE_CLOCK_HIGH; - /* Assume 8bpc for the DP++/HDMI/DVI TMDS clock check */ - status = intel_dp_tmds_clock_valid(intel_dp, target_clock, - 8, sink_format, true); + status = intel_dp_hdmi_bw_check(intel_dp, target_clock, bpc, sink_format, is_frl); if (status != MODE_OK) { if (sink_format == INTEL_OUTPUT_FORMAT_YCBCR420 || !drm_mode_is_420_also(info, mode)) return status; sink_format = INTEL_OUTPUT_FORMAT_YCBCR420; - status = intel_dp_tmds_clock_valid(intel_dp, target_clock, - 8, sink_format, true); + status = intel_dp_hdmi_bw_check(intel_dp, target_clock, bpc, sink_format, is_frl); + } else { if (status != MODE_OK) return status; }