From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 210B2C433DB for ; Fri, 19 Mar 2021 02:47:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DFB5964F18 for ; Fri, 19 Mar 2021 02:47:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233354AbhCSCrM (ORCPT ); Thu, 18 Mar 2021 22:47:12 -0400 Received: from inva021.nxp.com ([92.121.34.21]:55074 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229736AbhCSCqk (ORCPT ); Thu, 18 Mar 2021 22:46:40 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 65D59202418; Fri, 19 Mar 2021 03:46:39 +0100 (CET) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 3CD5C20241E; Fri, 19 Mar 2021 03:46:35 +0100 (CET) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id B0F524029B; Fri, 19 Mar 2021 03:46:29 +0100 (CET) From: Ran Wang To: Linus Walleij , Andy Shevchenko , Bartosz Golaszewski , Michael Walle Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, Ran Wang Subject: [PATCH v2] gpio: mpc8xxx: Add ACPI support Date: Fri, 19 Mar 2021 10:53:32 +0800 Message-Id: <20210319025332.36659-1-ran.wang_1@nxp.com> X-Mailer: git-send-email 2.17.1 X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Current implementation only supports DT, now add ACPI support. Note that compared to device of 'fsl,qoriq-gpio', LS1028A and LS1088A's GPIO have no extra programming, so simplify related checking. Signed-off-by: Ran Wang --- Change in v2: - Initialize devtype with NULL to fix compile warning. - Replace of_device_get_match_data() and acpi_match_device with device_get_match_data(). - Replace acpi_match_device() with simpler checking logic per Andy's suggestion. drivers/gpio/gpio-mpc8xxx.c | 34 +++++++++++++++++++++++----------- 1 file changed, 23 insertions(+), 11 deletions(-) diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c index 6dfca83bcd90..646225fa3e73 100644 --- a/drivers/gpio/gpio-mpc8xxx.c +++ b/drivers/gpio/gpio-mpc8xxx.c @@ -9,6 +9,7 @@ * kind, whether express or implied. */ +#include #include #include #include @@ -292,8 +293,6 @@ static const struct of_device_id mpc8xxx_gpio_ids[] = { { .compatible = "fsl,mpc5121-gpio", .data = &mpc512x_gpio_devtype, }, { .compatible = "fsl,mpc5125-gpio", .data = &mpc5125_gpio_devtype, }, { .compatible = "fsl,pq3-gpio", }, - { .compatible = "fsl,ls1028a-gpio", }, - { .compatible = "fsl,ls1088a-gpio", }, { .compatible = "fsl,qoriq-gpio", }, {} }; @@ -303,8 +302,8 @@ static int mpc8xxx_probe(struct platform_device *pdev) struct device_node *np = pdev->dev.of_node; struct mpc8xxx_gpio_chip *mpc8xxx_gc; struct gpio_chip *gc; - const struct mpc8xxx_gpio_devtype *devtype = - of_device_get_match_data(&pdev->dev); + const struct mpc8xxx_gpio_devtype *devtype = NULL; + struct fwnode_handle *fwnode; int ret; mpc8xxx_gc = devm_kzalloc(&pdev->dev, sizeof(*mpc8xxx_gc), GFP_KERNEL); @@ -315,14 +314,14 @@ static int mpc8xxx_probe(struct platform_device *pdev) raw_spin_lock_init(&mpc8xxx_gc->lock); - mpc8xxx_gc->regs = of_iomap(np, 0); + mpc8xxx_gc->regs = devm_platform_ioremap_resource(pdev, 0); if (!mpc8xxx_gc->regs) return -ENOMEM; gc = &mpc8xxx_gc->gc; gc->parent = &pdev->dev; - if (of_property_read_bool(np, "little-endian")) { + if (device_property_read_bool(&pdev->dev, "little-endian")) { ret = bgpio_init(gc, &pdev->dev, 4, mpc8xxx_gc->regs + GPIO_DAT, NULL, NULL, @@ -345,6 +344,7 @@ static int mpc8xxx_probe(struct platform_device *pdev) mpc8xxx_gc->direction_output = gc->direction_output; + devtype = device_get_match_data(&pdev->dev); if (!devtype) devtype = &mpc8xxx_gpio_devtype_default; @@ -369,9 +369,9 @@ static int mpc8xxx_probe(struct platform_device *pdev) * associated input enable must be set (GPIOxGPIE[IEn]=1) to propagate * the port value to the GPIO Data Register. */ + fwnode = dev_fwnode(&pdev->dev); if (of_device_is_compatible(np, "fsl,qoriq-gpio") || - of_device_is_compatible(np, "fsl,ls1028a-gpio") || - of_device_is_compatible(np, "fsl,ls1088a-gpio")) + !(IS_ERR_OR_NULL(fwnode) || is_of_node(fwnode))) gc->write_reg(mpc8xxx_gc->regs + GPIO_IBE, 0xffffffff); ret = gpiochip_add_data(gc, mpc8xxx_gc); @@ -381,12 +381,15 @@ static int mpc8xxx_probe(struct platform_device *pdev) goto err; } - mpc8xxx_gc->irqn = irq_of_parse_and_map(np, 0); + mpc8xxx_gc->irqn = platform_get_irq(pdev, 0); if (!mpc8xxx_gc->irqn) return 0; - mpc8xxx_gc->irq = irq_domain_add_linear(np, MPC8XXX_GPIO_PINS, - &mpc8xxx_gpio_irq_ops, mpc8xxx_gc); + mpc8xxx_gc->irq = irq_domain_create_linear(fwnode, + MPC8XXX_GPIO_PINS, + &mpc8xxx_gpio_irq_ops, + mpc8xxx_gc); + if (!mpc8xxx_gc->irq) return 0; @@ -425,12 +428,21 @@ static int mpc8xxx_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_ACPI +static const struct acpi_device_id gpio_acpi_ids[] = { + {"NXP0031",}, + { } +}; +MODULE_DEVICE_TABLE(acpi, gpio_acpi_ids); +#endif + static struct platform_driver mpc8xxx_plat_driver = { .probe = mpc8xxx_probe, .remove = mpc8xxx_remove, .driver = { .name = "gpio-mpc8xxx", .of_match_table = mpc8xxx_gpio_ids, + .acpi_match_table = ACPI_PTR(gpio_acpi_ids), }, }; -- 2.25.1