From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp.codeaurora.org by pdx-caf-mail.web.codeaurora.org (Dovecot) with LMTP id Rw0SIbVjHluTYAAAmS7hNA ; Mon, 11 Jun 2018 11:57:53 +0000 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 86BE160792; Mon, 11 Jun 2018 11:57:53 +0000 (UTC) Authentication-Results: smtp.codeaurora.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ovUCe3ld" X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by smtp.codeaurora.org (Postfix) with ESMTP id 06369601C3; Mon, 11 Jun 2018 11:57:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 06369601C3 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933288AbeFKL5u (ORCPT + 21 others); Mon, 11 Jun 2018 07:57:50 -0400 Received: from mail-lf0-f65.google.com ([209.85.215.65]:38426 "EHLO mail-lf0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933095AbeFKLxJ (ORCPT ); Mon, 11 Jun 2018 07:53:09 -0400 Received: by mail-lf0-f65.google.com with SMTP id i83-v6so30084576lfh.5; Mon, 11 Jun 2018 04:53:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=/tVL8GHbt6YzIFcBgCmNQJSQkm00CCKS7j8Re6mrh5o=; b=ovUCe3ld0nR0SFJVdtm33uyWSFAJ0ceuaMwVTxu7WQxD+cPeKqGrMz+MghOBcPD/PE ugCq7uRIfYezZyG/cDcvTzltK4rFr9apsEHv5a0lFl4UA2KWyGISr7k0EkJa8VXFHq/5 o1tgbH+lN1CWF3k8O+aLr1uzarw7m1jYcWUcQISm7iJAoWlMN1afcxxOsFt2/m5+Saj8 2eqNjDdy/irLGC0S2AoQY6L37WrZ2mhJhPN91nqPK5g1KnnYHgVd/ajUltrt8PUHX32f CANLJDeVPlr7zTfIQzTcoYVjQt3onlR58fE+5Uh52tg4XHXbExAsZNFzPeqZVKfNYxYj USBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=/tVL8GHbt6YzIFcBgCmNQJSQkm00CCKS7j8Re6mrh5o=; b=g8EyaFgRpYksn22mQEz/WguchhqHCcr3zO1jsobFj3nS9jI9FzY3kZpU2Gx9bX90hi PktL7REMjDa47vCj2sAtQkKkiqBUTZGCvrSN2PkV+/0IoW2CxozhKBiwUHlEjhIP40t9 KO4rHdEO0szTQUF7YH6BaEpNA+vi3zVISGMPMvY+z23XqHvnlqlt1s1iaORpeJ3hQVpg u5nRjZoh7P+Dg/3x6qypEJuXLDRhUpmQCZvxr7sjSkW20qhnT/zjAJVA1GUa682sqGGa m3cWFhfOxYn4e0iCEcMT3jGuSSl2obcM4GsUJBUcQbp9s10NlHLspp1ElpZYcUuIceNv dU+Q== X-Gm-Message-State: APt69E0Bg86mYb3RcKZQZb3a2/eAZHhWyK0yoYtHgyt+9JOL6KGTFNnb j/98h8XTDTMz9tiVcl9fkwwtWy4x X-Google-Smtp-Source: ADUXVKJvT0BoJjcHLOghCyW6ra9a0Wh/4uLSaQUoGFgHvf3GiKcQy9bNbsfaDrc6XYezDJPMe89E+Q== X-Received: by 2002:a19:8d15:: with SMTP id p21-v6mr9150449lfd.99.1528717987320; Mon, 11 Jun 2018 04:53:07 -0700 (PDT) Received: from neopili.qtec.com (cpe.xe-3-0-1-778.vbrnqe10.dk.customer.tdc.net. [80.197.57.18]) by smtp.gmail.com with ESMTPSA id h90-v6sm8332849ljf.65.2018.06.11.04.53.05 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Jun 2018 04:53:06 -0700 (PDT) From: Ricardo Ribalda Delgado To: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org Cc: Ricardo Ribalda Delgado , Rob Herring , Johan Hovold , Greg Kroah-Hartman , Jiri Slaby Subject: [PATCH v2 08/24] serdev: Provide modalias attribute for modalias devices Date: Mon, 11 Jun 2018 13:52:24 +0200 Message-Id: <20180611115240.32606-9-ricardo.ribalda@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180611115240.32606-1-ricardo.ribalda@gmail.com> References: <20180611115240.32606-1-ricardo.ribalda@gmail.com> 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. This is required by modprobe/udev to autoload the serdev driver. Eg: root@qt5022:~# cat /sys/bus/serial/devices/serial1-0/modalias serdev:ttydev Cc: Rob Herring Cc: Johan Hovold Cc: Greg Kroah-Hartman Cc: Jiri Slaby Signed-off-by: Ricardo Ribalda Delgado --- drivers/tty/serdev/core.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c index 5df01d8cf307..b9bb0c0ee319 100644 --- a/drivers/tty/serdev/core.c +++ b/drivers/tty/serdev/core.c @@ -23,12 +23,17 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) { int len; + struct serdev_device *serdev = to_serdev_device(dev); len = acpi_device_modalias(dev, buf, PAGE_SIZE - 1); if (len != -ENODEV) return len; - return of_device_modalias(dev, buf, PAGE_SIZE); + len = of_device_modalias(dev, buf, PAGE_SIZE); + if (len != -ENODEV) + return len; + + return sprintf(buf, "%s%s\n", SERDEV_MODULE_PREFIX, serdev->modalias); } static DEVICE_ATTR_RO(modalias); -- 2.17.1