From patchwork Fri Jun 9 17:42:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Golani, Mitulkumar Ajitkumar" X-Patchwork-Id: 13274252 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 65950C7EE2E for ; Fri, 9 Jun 2023 17:41:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CDA5710E157; Fri, 9 Jun 2023 17:41:14 +0000 (UTC) Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4C39810E157 for ; Fri, 9 Jun 2023 17:41:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1686332472; x=1717868472; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=U0oGv5wG5HpZnB5qhuOSi4DgC1V8HDIkI0rLdwArIjg=; b=WYWA3y80Vd21UYJizjKJcmhY3JU/KdXSiYFe1yOfBurh29kuLlS/Xsjj t92CUwTl07HdJZ6lPI7HHc9lm25Ptd0rEqgUJWDLcNvracvWnRe9VeEz/ h9bPGYQ/Wz7mG1g+q0Psf5G9rYNg3Kji4pDYvjERf9HEuCslbrKEV9MAK xCjTr2aK4qC2zFFa4o8zeu8lsFK6ci5FCgFqKnATU2uM7VtUchvmL2jBn 5hGrMysFehjFBtdq37rJj7fCKV86lE2JJoZfCaujbBydWTFZtIJPH+POJ im7lJQ84CIqNEz13bNTCeBfjjJ3OhoPby3Ti6ZjSqekw8/mFPiNtQ66Ce g==; X-IronPort-AV: E=McAfee;i="6600,9927,10736"; a="337289194" X-IronPort-AV: E=Sophos;i="6.00,230,1681196400"; d="scan'208";a="337289194" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jun 2023 10:41:11 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10736"; a="780394431" X-IronPort-AV: E=Sophos;i="6.00,230,1681196400"; d="scan'208";a="780394431" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmsmga004.fm.intel.com with ESMTP; 09 Jun 2023 10:41:09 -0700 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Date: Fri, 9 Jun 2023 23:12:09 +0530 Message-Id: <20230609174212.1946930-1-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Subject: [Intel-gfx] [RFC 0/3] Get optimal audio frequency and channels 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 we do not check if there is enough bandwidth for audio, and what channels and freq it can really support. Also sometimes there can be HW constraints e.g. GLK where audio channels supported are only 2. https://patchwork.freedesktop.org/series/107647/ Obtain the optimal audio rate and channel based on available display timing constraints. This can be achieved by: - Retrieve the supported channel and rate information from SADs - Adding audio-related config parameters in the CRTC state, such as audio support, rate, and channel. - Initializing the audio config parameters with the maximum supported rate and channel by the audio source. - Computing the SADs based on the audio source's capabilities. Mitul Golani (3): drm/i915/hdmi: Optimize source audio parameter handling drm/i915/display: Configure and initialize HDMI audio capabilities drm/i915/display: Add wrapper to Compute SAD drivers/gpu/drm/i915/display/g4x_dp.c | 4 +- drivers/gpu/drm/i915/display/g4x_hdmi.c | 16 ++--- drivers/gpu/drm/i915/display/intel_audio.c | 72 ++++++++++++++++++- drivers/gpu/drm/i915/display/intel_audio.h | 1 + drivers/gpu/drm/i915/display/intel_cdclk.c | 6 +- .../drm/i915/display/intel_crtc_state_dump.c | 4 +- drivers/gpu/drm/i915/display/intel_ddi.c | 2 +- drivers/gpu/drm/i915/display/intel_display.c | 4 +- .../drm/i915/display/intel_display_types.h | 12 +++- drivers/gpu/drm/i915/display/intel_dp.c | 2 +- drivers/gpu/drm/i915/display/intel_dp_mst.c | 2 +- drivers/gpu/drm/i915/display/intel_hdmi.c | 39 +++++++++- drivers/gpu/drm/i915/display/intel_hdmi.h | 1 + drivers/gpu/drm/i915/display/intel_sdvo.c | 10 +-- 14 files changed, 143 insertions(+), 32 deletions(-)