From patchwork Wed Sep 28 08:35:41 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Tissoires X-Patchwork-Id: 9353273 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 1A3126086A for ; Wed, 28 Sep 2016 08:36:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0B4DD29428 for ; Wed, 28 Sep 2016 08:36:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0079F2943D; Wed, 28 Sep 2016 08:36:23 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D9B5229428 for ; Wed, 28 Sep 2016 08:36:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752168AbcI1IgK (ORCPT ); Wed, 28 Sep 2016 04:36:10 -0400 Received: from mx1.redhat.com ([209.132.183.28]:50452 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752113AbcI1IgF (ORCPT ); Wed, 28 Sep 2016 04:36:05 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id AA1F046297; Wed, 28 Sep 2016 08:36:04 +0000 (UTC) Received: from plouf.banquise.eu.com (ovpn-116-65.ams2.redhat.com [10.36.116.65]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u8S8Zm4m013918; Wed, 28 Sep 2016 04:36:03 -0400 From: Benjamin Tissoires To: Dmitry Torokhov , Lyude Paul , Andrew Duggan , Christopher Heiny Cc: Peter Hutterer , linux-kernel@vger.kernel.org, linux-input@vger.kernel.org Subject: [PATCH v2 06/12] Input: synaptics-rmi4 - Add rmi_find_function() Date: Wed, 28 Sep 2016 10:35:41 +0200 Message-Id: <1475051747-25988-7-git-send-email-benjamin.tissoires@redhat.com> In-Reply-To: <1475051747-25988-1-git-send-email-benjamin.tissoires@redhat.com> References: <1475051747-25988-1-git-send-email-benjamin.tissoires@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Wed, 28 Sep 2016 08:36:04 +0000 (UTC) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP If a function needs to communicate with an other, it's better to have a way to retrieve this other. Reviewed-by: Andrew Duggan Signed-off-by: Benjamin Tissoires --- no changes in v2 --- drivers/input/rmi4/rmi_driver.c | 13 +++++++++++++ drivers/input/rmi4/rmi_driver.h | 1 + 2 files changed, 14 insertions(+) diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c index c83bce8..e210e8f 100644 --- a/drivers/input/rmi4/rmi_driver.c +++ b/drivers/input/rmi4/rmi_driver.c @@ -181,6 +181,19 @@ int rmi_process_interrupt_requests(struct rmi_device *rmi_dev) } EXPORT_SYMBOL_GPL(rmi_process_interrupt_requests); +struct rmi_function *rmi_find_function(struct rmi_device *rmi_dev, u8 number) +{ + struct rmi_driver_data *data = dev_get_drvdata(&rmi_dev->dev); + struct rmi_function *entry; + + list_for_each_entry(entry, &data->function_list, node) { + if (entry->fd.function_number == number) + return entry; + } + + return NULL; +} + static int suspend_one_function(struct rmi_function *fn) { struct rmi_function_handler *fh; diff --git a/drivers/input/rmi4/rmi_driver.h b/drivers/input/rmi4/rmi_driver.h index fe26aca..9da1ee4 100644 --- a/drivers/input/rmi4/rmi_driver.h +++ b/drivers/input/rmi4/rmi_driver.h @@ -95,6 +95,7 @@ bool rmi_register_desc_has_subpacket(const struct rmi_register_desc_item *item, bool rmi_is_physical_driver(struct device_driver *); int rmi_register_physical_driver(void); void rmi_unregister_physical_driver(void); +struct rmi_function *rmi_find_function(struct rmi_device *rmi_dev, u8 number); char *rmi_f01_get_product_ID(struct rmi_function *fn);