From patchwork Wed Oct 23 21:28:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierre-Louis Bossart X-Patchwork-Id: 11207753 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C4E9C13BD for ; Wed, 23 Oct 2019 21:34:00 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5622A21A4A for ; Wed, 23 Oct 2019 21:34:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="sItuLqeK" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5622A21A4A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 923E71682; Wed, 23 Oct 2019 23:33:08 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 923E71682 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1571866438; bh=F26hwYtr63CWTuuGbtyvjb0zaNrwcSyE5G2Y5gogZII=; h=From:To:Date:In-Reply-To:References:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=sItuLqeKQC2mNUS+5IiazfXqTg6wyAAyi9lUnb+mW3J4Y7mjrugcx+x6M8CeP519x iyBWUiqgP+ukQJm5otCDWJH7UZHdLUIoiRZInR3CLqEy9F9ACpBQSt8TZ+l5gZyUG1 HjRiRygt+35ErK6Avo6QTcv3dcTYlRdMs+KWewJg= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id DD754F8065B; Wed, 23 Oct 2019 23:29:02 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa1.perex.cz (Postfix, from userid 50401) id 54FDAF8060F; Wed, 23 Oct 2019 23:28:53 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on alsa1.perex.cz X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=SPF_HELO_NONE,SPF_NONE, SURBL_BLOCKED,URIBL_BLOCKED autolearn=disabled version=3.4.0 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id B16D9F803D7 for ; Wed, 23 Oct 2019 23:28:47 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz B16D9F803D7 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 Oct 2019 14:28:47 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,222,1569308400"; d="scan'208";a="399541190" Received: from ayamada-mobl1.gar.corp.intel.com (HELO pbossart-mobl3.intel.com) ([10.254.95.208]) by fmsmga006.fm.intel.com with ESMTP; 23 Oct 2019 14:28:45 -0700 From: Pierre-Louis Bossart To: alsa-devel@alsa-project.org Date: Wed, 23 Oct 2019 16:28:15 -0500 Message-Id: <20191023212823.608-7-pierre-louis.bossart@linux.intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191023212823.608-1-pierre-louis.bossart@linux.intel.com> References: <20191023212823.608-1-pierre-louis.bossart@linux.intel.com> MIME-Version: 1.0 Cc: Pierre-Louis Bossart , tiwai@suse.de, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, Ranjani Sridharan , vkoul@kernel.org, broonie@kernel.org, srinivas.kandagatla@linaro.org, jank@cadence.com, slawomir.blauciak@intel.com, Sanyog Kale , Bard liao , Rander Wang Subject: [alsa-devel] [PATCH 06/14] soundwire: add support for sdw_slave_type X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Currently the bus does not have any explicit support for master devices. Add explicit support for sdw_slave_type, so that in follow-up patches we can add support for the sdw_md_type (md==Master Device), following the Grey Bus example. Signed-off-by: Pierre-Louis Bossart --- drivers/soundwire/bus_type.c | 9 ++++++++- drivers/soundwire/slave.c | 7 ++++++- include/linux/soundwire/sdw_type.h | 6 ++++++ 3 files changed, 20 insertions(+), 2 deletions(-) diff --git a/drivers/soundwire/bus_type.c b/drivers/soundwire/bus_type.c index 9a0fd3ee1014..5df095f4e12f 100644 --- a/drivers/soundwire/bus_type.c +++ b/drivers/soundwire/bus_type.c @@ -49,9 +49,16 @@ int sdw_slave_modalias(const struct sdw_slave *slave, char *buf, size_t size) static int sdw_uevent(struct device *dev, struct kobj_uevent_env *env) { - struct sdw_slave *slave = to_sdw_slave_device(dev); + struct sdw_slave *slave; char modalias[32]; + if (is_sdw_slave(dev)) { + slave = to_sdw_slave_device(dev); + } else { + dev_warn(dev, "uevent for unknown Soundwire type\n"); + return -EINVAL; + } + sdw_slave_modalias(slave, modalias, sizeof(modalias)); if (add_uevent_var(env, "MODALIAS=%s", modalias)) diff --git a/drivers/soundwire/slave.c b/drivers/soundwire/slave.c index 48a513680db6..c87267f12a3b 100644 --- a/drivers/soundwire/slave.c +++ b/drivers/soundwire/slave.c @@ -14,6 +14,11 @@ static void sdw_slave_release(struct device *dev) kfree(slave); } +struct device_type sdw_slave_type = { + .name = "sdw_slave", + .release = sdw_slave_release, +}; + static int sdw_slave_add(struct sdw_bus *bus, struct sdw_slave_id *id, struct fwnode_handle *fwnode) { @@ -41,9 +46,9 @@ static int sdw_slave_add(struct sdw_bus *bus, id->class_id, id->unique_id); } - slave->dev.release = sdw_slave_release; slave->dev.bus = &sdw_bus_type; slave->dev.of_node = of_node_get(to_of_node(fwnode)); + slave->dev.type = &sdw_slave_type; slave->bus = bus; slave->status = SDW_SLAVE_UNATTACHED; slave->dev_num = 0; diff --git a/include/linux/soundwire/sdw_type.h b/include/linux/soundwire/sdw_type.h index 7d4bc6a979bf..c681b3426478 100644 --- a/include/linux/soundwire/sdw_type.h +++ b/include/linux/soundwire/sdw_type.h @@ -5,6 +5,12 @@ #define __SOUNDWIRE_TYPES_H extern struct bus_type sdw_bus_type; +extern struct device_type sdw_slave_type; + +static inline int is_sdw_slave(const struct device *dev) +{ + return dev->type == &sdw_slave_type; +} #define to_sdw_slave_driver(_drv) \ container_of(_drv, struct sdw_driver, driver)