From patchwork Fri Oct 28 09:44:11 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: 13023289 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 4E694C38A02 for ; Fri, 28 Oct 2022 09:44:44 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D1BA110E7D5; Fri, 28 Oct 2022 09:44:27 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3338410E7C2 for ; Fri, 28 Oct 2022 09:44:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1666950246; x=1698486246; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=QLqGJjaa6UoniqmgPA1GLRSN7DNfOIzcfvIEwFca0Cg=; b=D1z2jAtKmBRkMMax4whdvU3esdqgzcna4Nxi6LznqMQJxtpN49IQ3tFG 9xZfsmdGN4vWrrVTqBkHIcQXlceFlbRpzok0f9z0kajvuRQdPQC6Tg9/8 3DIBLniYlvkgZdTeIKE2A6GqPcuEjx61NB2rKYiJltTE9QUxxL46K3wtI 7CfEJfpHzclurKl6VmJhujx+bMjO+t8yWHRjh/FydDEq5t+cuWngDSXza J174LJJcP2JsGZJeAx4gezENNq+4acyWU/6rL0NIb+f7FT8B3IR+thnYz p0DxEub0EZhvf8MGulrX5ZBz8MNEfG+RURQH2d6+4Dg4pXl0IykG8jOz6 Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10513"; a="335094695" X-IronPort-AV: E=Sophos;i="5.95,220,1661842800"; d="scan'208";a="335094695" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Oct 2022 02:44:05 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10513"; a="758026652" X-IronPort-AV: E=Sophos;i="5.95,220,1661842800"; d="scan'208";a="758026652" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Oct 2022 02:44:04 -0700 From: Ankit Nautiyal To: intel-gfx@lists.freedesktop.org Date: Fri, 28 Oct 2022 15:14:11 +0530 Message-Id: <20221028094411.3673476-10-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221028094411.3673476-1-ankit.k.nautiyal@intel.com> References: <20221028094411.3673476-1-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v5 9/9] 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 03b42aecc4fb..8c267422cd8b 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -933,6 +933,18 @@ 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, @@ -942,48 +954,31 @@ 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) { + is_frl = intel_dp->dfp.pcon_max_frl_bw ? true : false; - 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; - } - - 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; }