From patchwork Mon Jun 19 10:08:48 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 9795683 X-Patchwork-Delegate: sameo@linux.intel.com 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 96459600C5 for ; Mon, 19 Jun 2017 10:09:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7820027FB6 for ; Mon, 19 Jun 2017 10:09:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6D3E627FAD; Mon, 19 Jun 2017 10:09:25 +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 1EF3427FB6 for ; Mon, 19 Jun 2017 10:09:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753979AbdFSKJT (ORCPT ); Mon, 19 Jun 2017 06:09:19 -0400 Received: from mga06.intel.com ([134.134.136.31]:59135 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753974AbdFSKJR (ORCPT ); Mon, 19 Jun 2017 06:09:17 -0400 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga104.jf.intel.com with ESMTP; 19 Jun 2017 03:09:00 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.39,360,1493708400"; d="scan'208";a="982535471" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga003.jf.intel.com with ESMTP; 19 Jun 2017 03:08:59 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id E0E6762C; Mon, 19 Jun 2017 13:08:58 +0300 (EEST) From: Andy Shevchenko To: Samuel Ortiz , linux-wireless@vger.kernel.org, linux-nfc@lists.01.org Cc: Andy Shevchenko Subject: [PATCH v3 03/13] NFC: st21nfca: Get rid of code duplication in ->probe() Date: Mon, 19 Jun 2017 13:08:48 +0300 Message-Id: <20170619100858.2655-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170619100858.2655-1-andriy.shevchenko@linux.intel.com> References: <20170619100858.2655-1-andriy.shevchenko@linux.intel.com> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Since OF and ACPI case almost the same get rid of code duplication by moving gpiod_get() calls directly to ->probe(). Signed-off-by: Andy Shevchenko --- drivers/nfc/st21nfca/i2c.c | 62 ++++++++-------------------------------------- 1 file changed, 10 insertions(+), 52 deletions(-) diff --git a/drivers/nfc/st21nfca/i2c.c b/drivers/nfc/st21nfca/i2c.c index 3621290807f6..cd1f7bfa75eb 100644 --- a/drivers/nfc/st21nfca/i2c.c +++ b/drivers/nfc/st21nfca/i2c.c @@ -61,8 +61,6 @@ #define ST21NFCA_HCI_DRIVER_NAME "st21nfca_hci" #define ST21NFCA_HCI_I2C_DRIVER_NAME "st21nfca_hci_i2c" -#define ST21NFCA_GPIO_NAME_EN "enable" - struct st21nfca_i2c_phy { struct i2c_client *i2c_dev; struct nfc_hci_dev *hdev; @@ -508,44 +506,10 @@ static const struct acpi_gpio_mapping acpi_st21nfca_gpios[] = { {}, }; -static int st21nfca_hci_i2c_acpi_request_resources(struct i2c_client *client) -{ - struct st21nfca_i2c_phy *phy = i2c_get_clientdata(client); - struct device *dev = &client->dev; - int ret; - - ret = devm_acpi_dev_add_driver_gpios(dev, acpi_st21nfca_gpios); - if (ret) - return ret; - - /* Get EN GPIO from ACPI */ - phy->gpiod_ena = devm_gpiod_get(dev, ST21NFCA_GPIO_NAME_EN, GPIOD_OUT_LOW); - if (IS_ERR(phy->gpiod_ena)) { - nfc_err(dev, "Unable to get ENABLE GPIO\n"); - return PTR_ERR(phy->gpiod_ena); - } - - return 0; -} - -static int st21nfca_hci_i2c_of_request_resources(struct i2c_client *client) -{ - struct st21nfca_i2c_phy *phy = i2c_get_clientdata(client); - struct device *dev = &client->dev; - - /* Get GPIO from device tree */ - phy->gpiod_ena = devm_gpiod_get(dev, ST21NFCA_GPIO_NAME_EN, GPIOD_OUT_HIGH); - if (IS_ERR(phy->gpiod_ena)) { - nfc_err(dev, "Failed to request enable pin\n"); - return PTR_ERR(phy->gpiod_ena); - } - - return 0; -} - static int st21nfca_hci_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct st21nfca_i2c_phy *phy; int r; @@ -572,21 +536,15 @@ static int st21nfca_hci_i2c_probe(struct i2c_client *client, mutex_init(&phy->phy_lock); i2c_set_clientdata(client, phy); - if (client->dev.of_node) { - r = st21nfca_hci_i2c_of_request_resources(client); - if (r) { - nfc_err(&client->dev, "No platform data\n"); - return r; - } - } else if (ACPI_HANDLE(&client->dev)) { - r = st21nfca_hci_i2c_acpi_request_resources(client); - if (r) { - nfc_err(&client->dev, "Cannot get ACPI data\n"); - return r; - } - } else { - nfc_err(&client->dev, "st21nfca platform resources not available\n"); - return -ENODEV; + r = devm_acpi_dev_add_driver_gpios(dev, acpi_st21nfca_gpios); + if (r) + dev_dbg(dev, "Unable to add GPIO mapping table\n"); + + /* Get EN GPIO from resource provider */ + phy->gpiod_ena = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW); + if (IS_ERR(phy->gpiod_ena)) { + nfc_err(dev, "Unable to get ENABLE GPIO\n"); + return PTR_ERR(phy->gpiod_ena); } phy->se_status.is_ese_present =