From patchwork Thu Feb 27 11:31:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitor Soares X-Patchwork-Id: 11408355 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 7550B92A for ; Thu, 27 Feb 2020 11:31:38 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 52C812469B for ; Thu, 27 Feb 2020 11:31:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="BCResF0z"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=synopsys.com header.i=@synopsys.com header.b="e/FbEKVO" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 52C812469B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=synopsys.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-i3c-bounces+linux-i3c=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=R1YbTHD/+dv/t0B+7iZ9Ldf/ZJ8xr3NwFUdE43QneTM=; b=BCResF0z65QGJNwtixoQaMzcBc /EbiEB6dB9C6lPQsx5aUVl+Wct+pOOFBMoT1m/W4htQyZwem2PQxVBGexvPTRAUR/6ArhQpVk80H/ K6PFqt9LyP0G1WEkG/wyf0shuTt/WDGrTZ7rCFb6ap0h8tm8jWtC75V3kOGQNJarEyuOGpPUwTnF5 K0BbMyGuMsLsvvhe2gDXqb0m4dTGqd8phg2Xt6D5UlLLacV4XNF71RYd/b8xVkHkUeBbpdaueQ11L Y5VG8xK5eBGeOyNMT1qfa+5cE1zwqV+B46Z+/apwvVOvsC1jWdIzZRGvi7lT56CMguMCp0OZeMeId UJPZEt+Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j7HOC-00065p-D0; Thu, 27 Feb 2020 11:31:36 +0000 Received: from us03-smtprelay2.synopsys.com ([149.117.87.133] helo=smtprelay-out1.synopsys.com) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j7HO9-00063S-9P for linux-i3c@lists.infradead.org; Thu, 27 Feb 2020 11:31:34 +0000 Received: from mailhost.synopsys.com (mdc-mailhost1.synopsys.com [10.225.0.209]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id CADA1C0F39; Thu, 27 Feb 2020 11:31:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1582803093; bh=g1PNO3dJwapptFFDIh94Tq3o6pR2tpjxuF2ZTzqCpQ4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=e/FbEKVO3uUAhW35HLE3UQQMuPOCPLX/uZojqRUIr5iCZ06DlOcAHPT1pLDS9dk1s XXdvqpCWEhwHva9WR/nuOe3aykLPC71mJvosJulSktwQruEaS6DuCBYCtPbX/ohugy syUjLN78NP6Daq9YoKM5+r9aPkEo/aGPFe6jcgsMibEAjPBcO3DUeM34tXtKq93xTP RrLPBZBmeuCQheBy8u95FRjhtfXZUCADjs7ezByPbYQTOFa+GLJmc8V6kZjZLrT7A0 T+yL04MmPRZLj2qVtTcUCD4JvVVOALBxKzIi0aQ4Eosg/d2hRmdWEjjTd7gH9sFl/I IspoVc4sQmJ+w== Received: from de02.synopsys.com (germany.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id 87526A005F; Thu, 27 Feb 2020 11:31:26 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 6C9633E9E4; Thu, 27 Feb 2020 12:31:26 +0100 (CET) From: Vitor Soares To: pgaj@cadence.com, bbrezillon@kernel.org, linux-i3c@lists.infradead.org Subject: [PATCH v2 2/4] i3c: Add modalias sysfs attribute Date: Thu, 27 Feb 2020 12:31:07 +0100 Message-Id: X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200227_033133_470970_DEA902B2 X-CRM114-Status: UNSURE ( 9.29 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux I3C List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Boris Brezillon , linux-kernel@vger.kernel.org, Vitor Soares MIME-Version: 1.0 Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=patchwork.kernel.org@lists.infradead.org Create modalias sysfs attribute for modalias devices. Signed-off-by: Boris Brezillon Signed-off-by: Vitor Soares --- drivers/i3c/master.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c index b6db828..925e1ed 100644 --- a/drivers/i3c/master.c +++ b/drivers/i3c/master.c @@ -241,12 +241,34 @@ static ssize_t hdrcap_show(struct device *dev, } static DEVICE_ATTR_RO(hdrcap); +static ssize_t modalias_show(struct device *dev, + struct device_attribute *da, char *buf) +{ + struct i3c_device *i3c = dev_to_i3cdev(dev); + struct i3c_device_info devinfo; + u16 manuf, part, ext; + + i3c_device_get_info(i3c, &devinfo); + manuf = I3C_PID_MANUF_ID(devinfo.pid); + part = I3C_PID_PART_ID(devinfo.pid); + ext = I3C_PID_EXTRA_INFO(devinfo.pid); + + if (I3C_PID_RND_LOWER_32BITS(devinfo.pid)) + return sprintf(buf, "i3c:dcr%02Xmanuf%04X", devinfo.dcr, + manuf); + + return sprintf(buf, "i3c:dcr%02Xmanuf%04Xpart%04Xext%04X", + devinfo.dcr, manuf, part, ext); +} +static DEVICE_ATTR_RO(modalias); + static struct attribute *i3c_device_attrs[] = { &dev_attr_bcr.attr, &dev_attr_dcr.attr, &dev_attr_pid.attr, &dev_attr_dynamic_address.attr, &dev_attr_hdrcap.attr, + &dev_attr_modalias.attr, NULL, }; ATTRIBUTE_GROUPS(i3c_device);