// SPDX-License-Identifier: GPL-2.0-only /* * Intel Elkhart Lake PSE GPIO driver * * Copyright (c) 2023 Intel Corporation. * * Authors: Pandith N <pandith.n@intel.com> * Raag Jadav <raag.jadav@intel.com> */ #include <linux/device.h> #include <linux/err.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/pm.h> #include "gpio-tangier.h" /* Each Intel EHL PSE GPIO Controller has 30 GPIO pins */ #define EHL_PSE_NGPIO 30 static int ehl_gpio_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct tng_gpio *priv; int irq, ret; irq = platform_get_irq(pdev, 0); if (irq < 0) return irq; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; priv->reg_base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(priv->reg_base)) return PTR_ERR(priv->reg_base); priv->dev = dev; priv->irq = irq; priv->info.base = -1; priv->info.ngpio = EHL_PSE_NGPIO; priv->wake_regs.gwmr = GWMR_EHL; priv->wake_regs.gwsr = GWSR_EHL; priv->wake_regs.gsir = GSIR_EHL; ret = devm_tng_gpio_probe(dev, priv); if (ret) return dev_err_probe(dev, ret, "tng_gpio_probe error\n"); platform_set_drvdata(pdev, priv); return 0; } static const struct platform_device_id ehl_gpio_ids[] = { { "gpio-elkhartlake" }, { } }; MODULE_DEVICE_TABLE(platform, ehl_gpio_ids); static struct platform_driver ehl_gpio_driver = { .driver = { .name = "gpio-elkhartlake", .pm = pm_sleep_ptr(&tng_gpio_pm_ops), }, .probe = ehl_gpio_probe, .id_table = ehl_gpio_ids, }; module_platform_driver(ehl_gpio_driver); MODULE_AUTHOR("Pandith N <pandith.n@intel.com>"); MODULE_AUTHOR("Raag Jadav <raag.jadav@intel.com>"); MODULE_DESCRIPTION("Intel Elkhart Lake PSE GPIO driver"); MODULE_LICENSE("GPL"); MODULE_IMPORT_NS(GPIO_TANGIER);