From patchwork Fri Jul 19 13:30:54 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitor Soares X-Patchwork-Id: 11050107 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 92742746 for ; Fri, 19 Jul 2019 13:31:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 82F2D28671 for ; Fri, 19 Jul 2019 13:31:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 777D8286E6; Fri, 19 Jul 2019 13:31:09 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable 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 0FFCC28735 for ; Fri, 19 Jul 2019 13:31:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728936AbfGSNbB (ORCPT ); Fri, 19 Jul 2019 09:31:01 -0400 Received: from smtprelay-out1.synopsys.com ([198.182.47.102]:35552 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728323AbfGSNbA (ORCPT ); Fri, 19 Jul 2019 09:31:00 -0400 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 6FAEBC1C32; Fri, 19 Jul 2019 13:30:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1563543059; bh=guLzfTDm0DCrYL34tliMIlpOGpkWKVhqKlozyTjq22U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=gBNVRQG3fcgBpP9c+ZTPkHfktcuLn/rIeT9QocKk8tg9L3pMAXKnWzjeKqwXieytv CVuhcnFzn2RLqLL32/iLCfWPobtbP8a2mQ+NiJyxuNKAgZtTeoKWLQpudFkQttRyi4 zwnNRr392g61iEbQKHr7R8S9BryUZrIE9EIftI456GCfhsrqISQzgl57r/glyRUWWp YOyeoYNKmSQul4uGkSq/1uChzbb4PIe9btAHa+brE/b7REsbUIVcMSr3HX7/WA7ZnW 3/fnFwiXGsyQPHc293dcxUlIjZPv6pQanpHANEX7UnZdAvJ+wFv89JwAobzNHlQJT6 NYOyKkuLK+qqg== Received: from de02.synopsys.com (germany.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id 45915A0057; Fri, 19 Jul 2019 13:30:57 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id E7DF53EBC6; Fri, 19 Jul 2019 15:30:56 +0200 (CEST) From: Vitor Soares To: linux-iio@vger.kernel.org, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Cc: lorenzo@kernel.org, gregkh@linuxfoundation.org, rafael@kernel.org, bbrezillon@kernel.org, Joao.Pinto@synopsys.com, Vitor Soares Subject: [PATCH v6 1/2] i3c: move i3c_device_match_id to device.c and export it Date: Fri, 19 Jul 2019 15:30:54 +0200 Message-Id: <2f94d66bab7e1d47f7eae8cde8028fd37fa4c423.1563542515.git.vitor.soares@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Some I3C device drivers need to know which entry matches the i3c_device object passed to the probe function Let's move i3c_device_match_id() to device.c and export it so it can be used by drivers. Signed-off-by: Vitor Soares --- Changes in v6: Improve kerneldoc Changes in v5: Add kerneldoc Improve commit message Changes in v4: None Changes in v3: Remove i3c_get_device_id Move i3c_device_match_id from drivers/i3c/master.c to drivers/i3c/device.c Export i3c_device_match_id Changes in v2: move this function to drivers/i3c/device.c drivers/i3c/device.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++ drivers/i3c/master.c | 45 --------------------------------------- include/linux/i3c/device.h | 4 ++++ 3 files changed, 57 insertions(+), 45 deletions(-) diff --git a/drivers/i3c/device.c b/drivers/i3c/device.c index 69cc040..c15f5ca 100644 --- a/drivers/i3c/device.c +++ b/drivers/i3c/device.c @@ -201,6 +201,59 @@ struct i3c_device *dev_to_i3cdev(struct device *dev) EXPORT_SYMBOL_GPL(dev_to_i3cdev); /** + * i3c_device_match_id() - Returns the i3c_device_id entry matching @i3cdev + * @i3cdev: I3C device + * @id_table: I3C device match table + * + * Return: a pointer to an i3c_device_id object or NULL if there's no match. + */ +const struct i3c_device_id * +i3c_device_match_id(struct i3c_device *i3cdev, + const struct i3c_device_id *id_table) +{ + struct i3c_device_info devinfo; + const struct i3c_device_id *id; + + i3c_device_get_info(i3cdev, &devinfo); + + /* + * The lower 32bits of the provisional ID is just filled with a random + * value, try to match using DCR info. + */ + if (!I3C_PID_RND_LOWER_32BITS(devinfo.pid)) { + u16 manuf = I3C_PID_MANUF_ID(devinfo.pid); + u16 part = I3C_PID_PART_ID(devinfo.pid); + u16 ext_info = I3C_PID_EXTRA_INFO(devinfo.pid); + + /* First try to match by manufacturer/part ID. */ + for (id = id_table; id->match_flags != 0; id++) { + if ((id->match_flags & I3C_MATCH_MANUF_AND_PART) != + I3C_MATCH_MANUF_AND_PART) + continue; + + if (manuf != id->manuf_id || part != id->part_id) + continue; + + if ((id->match_flags & I3C_MATCH_EXTRA_INFO) && + ext_info != id->extra_info) + continue; + + return id; + } + } + + /* Fallback to DCR match. */ + for (id = id_table; id->match_flags != 0; id++) { + if ((id->match_flags & I3C_MATCH_DCR) && + id->dcr == devinfo.dcr) + return id; + } + + return NULL; +} +EXPORT_SYMBOL_GPL(i3c_device_match_id); + +/** * i3c_driver_register_with_owner() - register an I3C device driver * * @drv: driver to register diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c index 5f4bd52..7667f84 100644 --- a/drivers/i3c/master.c +++ b/drivers/i3c/master.c @@ -270,51 +270,6 @@ static const struct device_type i3c_device_type = { .uevent = i3c_device_uevent, }; -static const struct i3c_device_id * -i3c_device_match_id(struct i3c_device *i3cdev, - const struct i3c_device_id *id_table) -{ - struct i3c_device_info devinfo; - const struct i3c_device_id *id; - - i3c_device_get_info(i3cdev, &devinfo); - - /* - * The lower 32bits of the provisional ID is just filled with a random - * value, try to match using DCR info. - */ - if (!I3C_PID_RND_LOWER_32BITS(devinfo.pid)) { - u16 manuf = I3C_PID_MANUF_ID(devinfo.pid); - u16 part = I3C_PID_PART_ID(devinfo.pid); - u16 ext_info = I3C_PID_EXTRA_INFO(devinfo.pid); - - /* First try to match by manufacturer/part ID. */ - for (id = id_table; id->match_flags != 0; id++) { - if ((id->match_flags & I3C_MATCH_MANUF_AND_PART) != - I3C_MATCH_MANUF_AND_PART) - continue; - - if (manuf != id->manuf_id || part != id->part_id) - continue; - - if ((id->match_flags & I3C_MATCH_EXTRA_INFO) && - ext_info != id->extra_info) - continue; - - return id; - } - } - - /* Fallback to DCR match. */ - for (id = id_table; id->match_flags != 0; id++) { - if ((id->match_flags & I3C_MATCH_DCR) && - id->dcr == devinfo.dcr) - return id; - } - - return NULL; -} - static int i3c_device_match(struct device *dev, struct device_driver *drv) { struct i3c_device *i3cdev; diff --git a/include/linux/i3c/device.h b/include/linux/i3c/device.h index 5ecb055..de102e4 100644 --- a/include/linux/i3c/device.h +++ b/include/linux/i3c/device.h @@ -188,6 +188,10 @@ static inline struct i3c_driver *drv_to_i3cdrv(struct device_driver *drv) struct device *i3cdev_to_dev(struct i3c_device *i3cdev); struct i3c_device *dev_to_i3cdev(struct device *dev); +const struct i3c_device_id * +i3c_device_match_id(struct i3c_device *i3cdev, + const struct i3c_device_id *id_table); + static inline void i3cdev_set_drvdata(struct i3c_device *i3cdev, void *data) {