From patchwork Wed Sep 11 11:58:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bard Liao X-Patchwork-Id: 13800309 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) (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 358831A01BF; Wed, 11 Sep 2024 11:59:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.11 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726055973; cv=none; b=aJz5p5cwNBqfuSmsNt1O7xNav96rZkcAeDAo6CLXxOSqD/YXOAWfbv3PxMTA9ZWSwGsCQb6CYbtb9MFhSSRRwi4eib2lQUVawl6RWu+7jBjSTB6uPpZLNZ/I2pPbEwONSf3Dk3yy/mUZl6fMTIMOIX54wU/ki9Xvfn1KyfuSJkk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726055973; c=relaxed/simple; bh=ZB3aqSPbxq3S58RNyPbBpF2vKgfog9SCStSlk2aXwzI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=j+IirxKjdcRELCAl9pw8/YZG7sNpU4djVlFmcWPun5JZrKCz0quSC3WJUOe0ES3jVi6ur9IXoD+so1bafkwm4YpF5CHHnFxM8DTUTs7mS8rPLtXLigmom0CpZaNI4Yj1gBWCLBOeFuf6+INN+4LtVu5Cq+b7wfhL3o36CppWwK0= 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=jJzEK8no; arc=none smtp.client-ip=198.175.65.11 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="jJzEK8no" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1726055972; x=1757591972; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ZB3aqSPbxq3S58RNyPbBpF2vKgfog9SCStSlk2aXwzI=; b=jJzEK8noxKYf6VhXOhWZrCW5qZyFvot6C+FsvlOiKsrYZp1rAKnlvdvl V+FLaXCgWrekB2MUB5ETzHzUExFo5m+mdDqfhh6iywknCnxmYYAaf7u++ Q85B8A3MhOgqDhsApRhRuApWooiiy1kkCjW8SCfkPzbCediwYaA23/wZc Hq+Kt0NY9cX+HgyJKaI9H9xiPWcCa/nac9FXenbQWpwBopkReoDP5U2wB nWncIv2Q8uu0/LGPdrRLt0D5IW4ji5CqYR81pqwz5h8PZK4JzPIO1t0f3 YVnp+aD2N39OJggej4pR5td9+diVPOmnlsbcY5Z3ilTKXu3eoEALFEVJ2 g==; X-CSE-ConnectionGUID: XlgRvSILQuqSGYhlsmfVZw== X-CSE-MsgGUID: Ex0Y5bi1Soa9Eyh3GSYa6g== X-IronPort-AV: E=McAfee;i="6700,10204,11191"; a="35417280" X-IronPort-AV: E=Sophos;i="6.10,219,1719903600"; d="scan'208";a="35417280" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Sep 2024 04:59:32 -0700 X-CSE-ConnectionGUID: /wkxpD0mR3OXBS8QenhA6Q== X-CSE-MsgGUID: SGks27XXQD2qLo7yDeOXZA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,219,1719903600"; d="scan'208";a="67292810" Received: from bvivekan-mobl2.gar.corp.intel.com (HELO yungchua-desk.intel.com) ([10.247.118.254]) by orviesa009-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Sep 2024 04:59:30 -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.intel.com, bard.liao@intel.com Subject: [PATCH v2 12/14] soundwire: mipi-disco: add comment on DP0-supported property Date: Wed, 11 Sep 2024 19:58:25 +0800 Message-ID: <20240911115827.233171-13-yung-chuan.liao@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240911115827.233171-1-yung-chuan.liao@linux.intel.com> References: <20240911115827.233171-1-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");