From patchwork Wed Jun 28 16:11:00 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: 13296035 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 E77D1EB64DC for ; Wed, 28 Jun 2023 16:12:23 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9EDAB10E379; Wed, 28 Jun 2023 16:12:21 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 124FD10E379 for ; Wed, 28 Jun 2023 16:12:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1687968739; x=1719504739; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=5rHFZRlYe6q00P+ZZetPhaQKVcYFWmEuIssj8gNXLDI=; b=C5EFc42FVmO5s5TTIHoyHfIGvuA+zbDrdmuf3Gcbj+TA/06rn4Xf2Wkw +RkzCfjBkFFQaOzONIT/zpuk0G+br8mdjGzMyBC3iiM444wXLUkdcxNxA Ib76MPNberw5x/IvL0KUvdb+RAt/lkWIAL9QUNZIsbatHO67EJkwFzUC+ F2y0BhMu/cw5FsBkQpXQbshqF7fBb9eQbzRUV8D5U/iEaORPmKxqmW0IG FhEm2ka5l4eehzrWDaIjZmnAkeCf6rszKfwrFtkykNnsV/0OMd07FW4hm pac2JPNcpv9xureeVgEsM1tvU4I5iIWPKVNzI8p9H7J/K4fuj+Fuw4J8l A==; X-IronPort-AV: E=McAfee;i="6600,9927,10755"; a="392613371" X-IronPort-AV: E=Sophos;i="6.01,165,1684825200"; d="scan'208";a="392613371" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Jun 2023 09:09:47 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10755"; a="830180692" X-IronPort-AV: E=Sophos;i="6.01,165,1684825200"; d="scan'208";a="830180692" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmsmga002.fm.intel.com with ESMTP; 28 Jun 2023 09:09:45 -0700 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Date: Wed, 28 Jun 2023 21:41:00 +0530 Message-Id: <20230628161103.2877959-1-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: Add has_audio to separate audio parameter in crtc_state 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 | 115 +++++++++++++++++- 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 | 2 +- drivers/gpu/drm/i915/display/intel_sdvo.c | 10 +- 12 files changed, 147 insertions(+), 32 deletions(-)