From patchwork Thu Oct 3 07:06:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bard Liao X-Patchwork-Id: 13820691 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 DA030146D40; Thu, 3 Oct 2024 07:07:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727939274; cv=none; b=lxoMm/xq8HIM0jI+BKmsCMGmoJILg3gJXNexJnWU5Nd+nvPpiDJ67Tfy9uYcfNxUPONnJrody7WsE/33LNF8ZMBi3/oYR3Fq1IWrHNPHDWDKWugJwD0t30LNtEiruUeMsSAX51pcXErUE4zCqFXC3KvfmC+wCW/17ScXDJtQgNQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727939274; c=relaxed/simple; bh=ZB3aqSPbxq3S58RNyPbBpF2vKgfog9SCStSlk2aXwzI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Z9v/H8mWAEHsX7RhT1zHUP/kQhM39l654Ymg8Kyn46vCuD3l4gwdTUaimyzXNB2zXHdRRx/Rdx+kJICL4XKC18jfBzSIqzLUbo4pmp2Jr0qhON4Bxl5jVATrDv4/5+ekRDFR8m7H5q4uQxU4jX/3C2zhjqwlLjJA7MJ2Pz5HHY8= 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=gy1BbbOd; arc=none smtp.client-ip=198.175.65.21 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="gy1BbbOd" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1727939273; x=1759475273; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ZB3aqSPbxq3S58RNyPbBpF2vKgfog9SCStSlk2aXwzI=; b=gy1BbbOdYIuoZwYbksFfoKOigw2VIvgS8F1+vxUtZgzbym7RIF6Bq2/i w1ZN25fItErmfQpqiG8lLesU7Tpehls8t7eoX/StguQKuHQNXiDmzV/KL Mu5aBw9x7L/23L/8G6QGEEX5ypB/jiUAuFv6nabt4am0OaHyP8S5eD5VU UYcaaTuPEQTfHb0b9S5hriSYK2MxtOMCxoxupzUAlgfZ4mdarRHCu+xjF D4BJ/0spwhnF+uRhZIBIg6NIPO8mw4gZuD9Srs2j5Lqwn/mEYA1hpzrYg pZqCrzDD2xiEbQVYiffqYB7QicAp4/u9DajNMBD+S4YvMaxTDAeVis3jk Q==; X-CSE-ConnectionGUID: w7qDwYVCQdWXU8+zFvIkjQ== X-CSE-MsgGUID: beWwHlmGSlqcptvjFcA7Lw== X-IronPort-AV: E=McAfee;i="6700,10204,11213"; a="27070797" X-IronPort-AV: E=Sophos;i="6.11,173,1725346800"; d="scan'208";a="27070797" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Oct 2024 00:07:53 -0700 X-CSE-ConnectionGUID: cMwgDRmXRKmi8rCfN7YALQ== X-CSE-MsgGUID: TgDmnMDJRiaPp4hg4uF7vg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,173,1725346800"; d="scan'208";a="74508426" Received: from anmitta2-mobl4.gar.corp.intel.com (HELO yungchua-desk.intel.com) ([10.247.118.10]) by orviesa006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Oct 2024 00:07:50 -0700 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 v2 RESEND 12/14] soundwire: mipi-disco: add comment on DP0-supported property Date: Thu, 3 Oct 2024 15:06:48 +0800 Message-ID: <20241003070650.62787-13-yung-chuan.liao@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241003070650.62787-1-yung-chuan.liao@linux.intel.com> References: <20241003070650.62787-1-yung-chuan.liao@linux.intel.com> Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Pierre-Louis Bossart The DisCo for SoundWire 2.0 spec adds support for a new property, but it's not very helpful. Add a comment to explain that it's intentionally ignored. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao --- drivers/soundwire/mipi_disco.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/soundwire/mipi_disco.c b/drivers/soundwire/mipi_disco.c index 6feba5631eae..d6eb63bf1252 100644 --- a/drivers/soundwire/mipi_disco.c +++ b/drivers/soundwire/mipi_disco.c @@ -398,7 +398,11 @@ int sdw_slave_read_prop(struct sdw_slave *slave) device_property_read_u32(dev, "mipi-sdw-sink-port-list", &prop->sink_ports); - /* Read dp0 properties */ + /* + * Read dp0 properties - we don't rely on the 'mipi-sdw-dp-0-supported' + * property since the 'mipi-sdw-dp0-subproperties' property is logically + * equivalent. + */ port = device_get_named_child_node(dev, "mipi-sdw-dp-0-subproperties"); if (!port) { dev_dbg(dev, "DP0 node not found!!\n");