From patchwork Tue Feb 28 14:08:09 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 9595723 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 0BE24601D7 for ; Tue, 28 Feb 2017 14:09:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F396C284D0 for ; Tue, 28 Feb 2017 14:09:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E86E128520; Tue, 28 Feb 2017 14:09:53 +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=-6.4 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_SPAM 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 76AD3284D0 for ; Tue, 28 Feb 2017 14:09:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752125AbdB1OJi (ORCPT ); Tue, 28 Feb 2017 09:09:38 -0500 Received: from mga06.intel.com ([134.134.136.31]:12996 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751986AbdB1OJh (ORCPT ); Tue, 28 Feb 2017 09:09:37 -0500 Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga104.jf.intel.com with ESMTP; 28 Feb 2017 06:08:42 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.35,219,1484035200"; d="scan'208";a="829327965" Received: from black.fi.intel.com ([10.237.72.28]) by FMSMGA003.fm.intel.com with ESMTP; 28 Feb 2017 06:08:40 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id EC199119; Tue, 28 Feb 2017 16:08:09 +0200 (EET) From: Andy Shevchenko To: Lauro Ramos Venancio , Aloisio Almeida Jr , Samuel Ortiz , linux-wireless@vger.kernel.org, Mika Westerberg Cc: Andy Shevchenko Subject: [PATCH v1 2/2] NFC: pn544: Add GPIO ACPI mapping table Date: Tue, 28 Feb 2017 16:08:09 +0200 Message-Id: <20170228140809.84921-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170228140809.84921-1-andriy.shevchenko@linux.intel.com> References: <20170228140809.84921-1-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 In order to make GPIO ACPI library stricter prepare users of gpiod_get_index() to correctly behave when there no mapping is provided by firmware. Here we add explicit mapping between _CRS GpioIo() resources and their names used in the driver. Signed-off-by: Andy Shevchenko --- drivers/nfc/pn544/i2c.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c index 2df3176205c4..5364bbd5ce55 100644 --- a/drivers/nfc/pn544/i2c.c +++ b/drivers/nfc/pn544/i2c.c @@ -874,6 +874,15 @@ static void pn544_hci_i2c_fw_work(struct work_struct *work) } } +static const struct acpi_gpio_params enable_gpios = { 1, 0, false }; +static const struct acpi_gpio_params firmware_gpios = { 2, 0, false }; + +static const struct acpi_gpio_mapping acpi_pn544_default_gpios[] = { + { "enable-gpios", &enable_gpios, 1 }, + { "firmware-gpios", &firmware_gpios, 1 }, + { }, +}; + static int pn544_hci_i2c_acpi_request_resources(struct i2c_client *client) { struct pn544_i2c_phy *phy = i2c_get_clientdata(client); @@ -982,6 +991,11 @@ static int pn544_hci_i2c_probe(struct i2c_client *client, return -ENODEV; } + r = acpi_dev_add_driver_gpios(ACPI_COMPANION(&client->dev), + acpi_pn544_default_gpios); + if (r) + return r; + phy = devm_kzalloc(&client->dev, sizeof(struct pn544_i2c_phy), GFP_KERNEL); if (!phy) @@ -1092,6 +1106,7 @@ static int pn544_hci_i2c_remove(struct i2c_client *client) pdata->free_resources(); } + acpi_dev_remove_driver_gpios(ACPI_COMPANION(&client->dev)); return 0; }