From patchwork Mon Jun 26 16:46:01 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: 13293212 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 00F99EB64D7 for ; Mon, 26 Jun 2023 16:44:54 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 51BBA10E0CD; Mon, 26 Jun 2023 16:44:54 +0000 (UTC) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id 799B610E089 for ; Mon, 26 Jun 2023 16:44:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1687797892; x=1719333892; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=ONeTYU1zVYkyZqq1xFGS+ICRbAkTh6pz90N/dtWvjpE=; b=J1JGcsylMqx7nr9ViSeHOwb0ousMksNDvapIBcEKaab1SexVfRi2kJMf slmHZulTIT62wsVEW+jOg8hcQp62i2c1vEASzBZCT/F/rm1HTggZMlP7/ a+5ebsGspgVIIt5oAephR4ReUUvCJAeSd0s6xY/BzE1BraZOv24sgcQZK 3l7V7sbutUNYACdF0sGpkHf+qgQpAcJ06VVvfa48mkaZZiP9ryn5eBpbC L0zRAreKlTPadk0MN6xfdmXjPM+LsITzzYWON0dcMu346BRTJG978A4q9 DpNlqU3kL7650tuYrv2UmPSFhJjgl8SUkiqjbstiTiI8VnLRIK/W+XLY+ A==; X-IronPort-AV: E=McAfee;i="6600,9927,10753"; a="341658758" X-IronPort-AV: E=Sophos;i="6.01,160,1684825200"; d="scan'208";a="341658758" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jun 2023 09:44:51 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10753"; a="806129468" X-IronPort-AV: E=Sophos;i="6.01,160,1684825200"; d="scan'208";a="806129468" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by FMSMGA003.fm.intel.com with ESMTP; 26 Jun 2023 09:44:50 -0700 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Date: Mon, 26 Jun 2023 22:16:01 +0530 Message-Id: <20230626164604.2759876-1-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 | 75 ++++++++++++++++++- drivers/gpu/drm/i915/display/intel_audio.h | 4 + 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 | 38 +++++++++- drivers/gpu/drm/i915/display/intel_hdmi.h | 1 + drivers/gpu/drm/i915/display/intel_sdvo.c | 10 +-- 14 files changed, 148 insertions(+), 32 deletions(-)