From patchwork Thu Jun 15 06:31:34 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: 13280730 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 812CFEB64D9 for ; Thu, 15 Jun 2023 06:30:35 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C707710E11A; Thu, 15 Jun 2023 06:30:34 +0000 (UTC) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id BBD0310E11A for ; Thu, 15 Jun 2023 06:30:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1686810633; x=1718346633; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=8TLoIynRQILsjugK5Fsp4+qoBZEYz2SDDyw7DCAhYVU=; b=YRI3ti/KB/LnOCC5acNoKdE+LsOIzTz9YIctbs7mLopJBmMixd+wvvkt dUfecPQNh4USUx+xMbSsdwSx54TZS/GAoxxug8vkJtswO+1YwfHN5nr0G O6HQBLlAWKckqcjdlWsQGo8Jbj/OErcP/rO6OXYYnzWsngAR8dTowN+Fm HyKWs0uHkCyuw+YsNu/BBItRWcgVlVoRESs7x4UHHLI8M3xDUQF224Vu1 5Am7xYFilhfMd/dvwRqYuoxt1uT2wMhxLwTtBfHpk4anawyxCwt7MwyDU aDxqrrne5RnRLTjcXDij+OJb45ap4UyJvRmRc9Z+lT1v/J3bG4sYuqHKx A==; X-IronPort-AV: E=McAfee;i="6600,9927,10741"; a="348493374" X-IronPort-AV: E=Sophos;i="6.00,244,1681196400"; d="scan'208";a="348493374" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jun 2023 23:30:32 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10741"; a="1042514798" X-IronPort-AV: E=Sophos;i="6.00,244,1681196400"; d="scan'208";a="1042514798" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmsmga005.fm.intel.com with ESMTP; 14 Jun 2023 23:30:30 -0700 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Date: Thu, 15 Jun 2023 12:01:34 +0530 Message-Id: <20230615063137.2219870-1-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. Signed-off-by: Mitul Golani 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 | 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, 146 insertions(+), 32 deletions(-)