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=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 5E13AC4BA3B for ; Thu, 27 Feb 2020 11:31:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 35A7924696 for ; Thu, 27 Feb 2020 11:31:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=synopsys.com header.i=@synopsys.com header.b="e/FbEKVO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728974AbgB0Lbe (ORCPT ); Thu, 27 Feb 2020 06:31:34 -0500 Received: from smtprelay-out1.synopsys.com ([149.117.87.133]:40730 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728966AbgB0Lbd (ORCPT ); Thu, 27 Feb 2020 06:31:33 -0500 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 Cc: linux-kernel@vger.kernel.org, Vitor Soares , Boris Brezillon 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: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.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); -- 2.7.4