From nobody Sun Nov 24 18:58:39 2024 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BB8F018C347; Mon, 4 Nov 2024 03:24:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.14 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730690644; cv=none; b=hdqZRBt48lUhzHOFONlp9VVf0C0MDNHZyIAP2YPRTOTrrxrsPxzALhyBCYFXAb5nn7DZUyLB5H4LiEm07U4FhGOWLJ2zjq4w9oz8D2oP9jAajB2lqD8keLFro+gJq8tFHEqNofkNNPko3bcTak7+P21c4UW0g2qgNqYrDDrOCbM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730690644; c=relaxed/simple; bh=FMb4Dd3ZGB7CVfMUIr02lTZUonJ09uv5mSaHmF2/KFA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=FmLfnxzb1oi4qOMxU97o8NNW+bL7yXXcdkDvcP+Bi7UFbBlqOTAXK0P3F8QuI6WnMUUaFILyjLM6vmdmnG6jVWT5N8v1kxcq4XXsudNmIWAp5kL04ueDwkIVgFqHoAaTfpqrNRAd5mAym/d13Gr2u6H/8L51nk8TymKkAZ3LVBs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=GKaRM68R; arc=none smtp.client-ip=192.198.163.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="GKaRM68R" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1730690642; x=1762226642; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=FMb4Dd3ZGB7CVfMUIr02lTZUonJ09uv5mSaHmF2/KFA=; b=GKaRM68R/gx9krWzgjJd/YM2GCcAonA78sjx7A4vkYLMVWkT3+22suBa OeLsgN11aHTCcAayguy3dovC2n6T3JhSqEEZ/XThFIhhAi/FBT4p0e8x4 DTFbtvGUqQfrGF7Lh3tZZgMQnMQU54ep6YOkQKMu5M4AF/jb+wGRVXiQd bdkw2L+tvPsGvVHGkkyYlH5xu/LP33EEe387dwtxvFL4KinQ+4lGCqA8O vcAqvvqSCZ1zJk4k4zy+qQuUmkxEsQLtXxsCb67PLTkxmS6vh26hOHCTz xOE63DSR8YlSJ3w0zPjVh5cyQT4zwXm1Bn1910/lgMAL7psdlB5rm6baH g==; X-CSE-ConnectionGUID: MV4TMyylRvSWRecTchufAA== X-CSE-MsgGUID: RltLfDUuQkmvuo5o4Deoog== X-IronPort-AV: E=McAfee;i="6700,10204,11245"; a="30594301" X-IronPort-AV: E=Sophos;i="6.11,256,1725346800"; d="scan'208";a="30594301" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Nov 2024 19:23:57 -0800 X-CSE-ConnectionGUID: VaySHve6SueDRri4I5rwDQ== X-CSE-MsgGUID: HrT8/Y6bReSmWhmR5rpA4w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,256,1725346800"; d="scan'208";a="114331826" Received: from yungchua-ws.ostc.intel.com (HELO yungchua-ws.intel.com) ([10.54.69.90]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Nov 2024 19:23:57 -0800 From: Bard Liao To: linux-sound@vger.kernel.org, vkoul@kernel.org Cc: vinod.koul@linaro.org, linux-kernel@vger.kernel.org, pierre-louis.bossart@linux.dev, bard.liao@intel.com Subject: [PATCH 09/12] soundwire: generic_bandwidth_allocation: correct clk_freq check in sdw_select_row_col Date: Mon, 4 Nov 2024 03:23:55 +0000 Message-Id: <20241104032358.669705-10-yung-chuan.liao@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241104032358.669705-1-yung-chuan.liao@linux.intel.com> References: <20241104032358.669705-1-yung-chuan.liao@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The bits in Column 0 of Rows 0 to 47 are for control word and cannot be used for audio. In practice, entire Column 0 is skipped. Signed-off-by: Bard Liao Reviewed-by: Ranjani Sridharan --- drivers/soundwire/generic_bandwidth_allocation.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/soundwire/generic_bandwidth_allocation.c b/drivers/sou= ndwire/generic_bandwidth_allocation.c index d847413141d3..5c4dac36ad1a 100644 --- a/drivers/soundwire/generic_bandwidth_allocation.c +++ b/drivers/soundwire/generic_bandwidth_allocation.c @@ -302,7 +302,6 @@ static int sdw_compute_port_params(struct sdw_bus *bus) static int sdw_select_row_col(struct sdw_bus *bus, int clk_freq) { struct sdw_master_prop *prop =3D &bus->prop; - int frame_int, frame_freq; int r, c; =20 for (c =3D 0; c < SDW_FRAME_COLS; c++) { @@ -311,11 +310,8 @@ static int sdw_select_row_col(struct sdw_bus *bus, int= clk_freq) sdw_cols[c] !=3D prop->default_col) continue; =20 - frame_int =3D sdw_rows[r] * sdw_cols[c]; - frame_freq =3D clk_freq / frame_int; - - if ((clk_freq - (frame_freq * SDW_FRAME_CTRL_BITS)) < - bus->params.bandwidth) + if (clk_freq * (sdw_cols[c] - 1) < + bus->params.bandwidth * sdw_cols[c]) continue; =20 bus->params.row =3D sdw_rows[r]; --=20 2.34.1