From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A24B7CA9ED0 for ; Sun, 3 Nov 2019 05:33:53 +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 221F2215EA for ; Sun, 3 Nov 2019 05:33:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="Cxj2Tqpb"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="b+V868EL" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 221F2215EA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org 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 34A04180F; Sun, 3 Nov 2019 06:33:01 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 34A04180F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1572759231; bh=q2K470IzbeI10rez3OMkWxQb47eYi7kEw+vWHgEXVIE=; h=Date:From:To:References:In-Reply-To:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=Cxj2TqpbD3Abwd9PW7EB2KrvMJHXjvMgGTm/32TPDJJ3WG2WmGC5wqrgNK+T2e05B NAsi3f3c8NGHvLqePPh27sc97vv/ZBVZH8RDphOf6ze5zFDPgwdmmEErvu5rMR2s5F FxpcUSQOzjLnuQtOwLzEHyDO8AUX6oy7lK01tRgI= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id B77A3F80446; Sun, 3 Nov 2019 06:33:00 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 16FB0F80535; Sun, 3 Nov 2019 06:32:56 +0100 (CET) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 42352F8015B for ; Sun, 3 Nov 2019 06:32:52 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 42352F8015B Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="b+V868EL" Received: from localhost (unknown [106.206.115.146]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4F42C20848; Sun, 3 Nov 2019 05:32:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572759170; bh=sWpt+8gx2UCKCgB2KXVS3k69C+FooSSl8zh1C67GoGw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=b+V868ELK1D52quKLVGl8UHoVERdMDQV+Cr9+e2uPPQsfFKUGlLKA9zdLqQtPREfM kub4ts0/RKcabrscvpgQNVm/ZUCVTPx2yLSD08SccaKNyha2lYPjUfoG0WYzY79NT7 o2qywTz1CkFBzx826wuhuF0UuP8U2k8Oc+psUTqg= Date: Sun, 3 Nov 2019 11:02:43 +0530 From: Vinod Koul To: Pierre-Louis Bossart Message-ID: <20191103053243.GI2695@vkoul-mobl.Dlink> References: <20191023212823.608-1-pierre-louis.bossart@linux.intel.com> <20191023212823.608-7-pierre-louis.bossart@linux.intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20191023212823.608-7-pierre-louis.bossart@linux.intel.com> User-Agent: Mutt/1.12.1 (2019-06-15) Cc: alsa-devel@alsa-project.org, tiwai@suse.de, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, Ranjani Sridharan , broonie@kernel.org, srinivas.kandagatla@linaro.org, jank@cadence.com, slawomir.blauciak@intel.com, Sanyog Kale , Bard liao , Rander Wang Subject: Re: [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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On 23-10-19, 16:28, Pierre-Louis Bossart wrote: > 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; when is the case where this would be triggered? > + } > + > 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) > -- > 2.20.1 -- ~Vinod _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel