From patchwork Mon Jun 26 16:38:16 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: 13293207 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 33646EB64D7 for ; Mon, 26 Jun 2023 16:37:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8174010E178; Mon, 26 Jun 2023 16:37:08 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 155F410E178 for ; Mon, 26 Jun 2023 16:37:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1687797426; x=1719333426; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=ONeTYU1zVYkyZqq1xFGS+ICRbAkTh6pz90N/dtWvjpE=; b=AuY35/ksohRW65TpVV9mrhlaRmJkOpMPRuqzOSB9ZjcL724JdNPyQ6Tg Wc9r8GXowoFJwa1Xp2ajB6oXls551mlTcrp7a0Jl5/Nr/VcckjGYVZwR0 fkhx7PHGjHFV21EdZETYXZ6cT4z23BX1BzhrUgmOTKMKsqas/IV84VKRO LfMmRUBrLInxs1D42vbOncIGuCoEC0ah7YFb92rGCqeMwvQHvhGi+Yay5 Z/TGuNGfwHLhvSyqP7qKxrp3rLt+kGPvhaGSxjYy8aPiCbfsp5/vXTFeg 8UYBG7jXi6Jr0FkwoEP8Vz9XZk6Zro2RljshXHBHEy7U87PFC6DHJD5QG A==; X-IronPort-AV: E=McAfee;i="6600,9927,10753"; a="358818271" X-IronPort-AV: E=Sophos;i="6.01,160,1684825200"; d="scan'208";a="358818271" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jun 2023 09:37:05 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10753"; a="781505070" X-IronPort-AV: E=Sophos;i="6.01,160,1684825200"; d="scan'208";a="781505070" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmsmga008.fm.intel.com with ESMTP; 26 Jun 2023 09:37:04 -0700 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Date: Mon, 26 Jun 2023 22:08:16 +0530 Message-Id: <20230626163819.2759500-1-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(-)