diff --git a/package/kernel/gpio-nxp-74hc153/Makefile b/package/kernel/gpio-nxp-74hc153/Makefile deleted file mode 100644 index e275a9a856..0000000000 --- a/package/kernel/gpio-nxp-74hc153/Makefile +++ /dev/null @@ -1,35 +0,0 @@ -# -# Copyright (C) 2020 Mauri Sandberg -# -# This is free software, licensed under the GNU General Public License v2. -# See /LICENSE for more information. -# - -include $(TOPDIR)/rules.mk -include $(INCLUDE_DIR)/kernel.mk - -PKG_NAME:=gpio-nxp-74hc153 -PKG_RELEASE:=1 -PKG_LICENSE:=GPL-2.0 - -include $(INCLUDE_DIR)/package.mk - -define KernelPackage/gpio-nxp-74hc153 - SUBMENU:=Other modules - TITLE:= NXP 74HC153 GPIO expander - FILES:=$(PKG_BUILD_DIR)/gpio-nxp-74hc153.ko - AUTOLOAD:=$(call AutoLoad,30,gpio-nxp-74hc153,1) - KCONFIG:= - DEPENDS:= @GPIO_SUPPORT @TARGET_ath79 -endef - -define KernelPackage/gpio-nxp-74hc153/description - Platform driver for NXP 74HC153 Dual 4-input Multiplexer. - This provides a GPIO interface supporting input mode only. -endef - -define Build/Compile - $(KERNEL_MAKE) M=$(PKG_BUILD_DIR) modules -endef - -$(eval $(call KernelPackage,gpio-nxp-74hc153)) diff --git a/package/kernel/gpio-nxp-74hc153/src/Makefile b/package/kernel/gpio-nxp-74hc153/src/Makefile deleted file mode 100644 index 0a5cc2fdda..0000000000 --- a/package/kernel/gpio-nxp-74hc153/src/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-m += gpio-nxp-74hc153.o diff --git a/package/kernel/gpio-nxp-74hc153/src/gpio-nxp-74hc153.c b/package/kernel/gpio-nxp-74hc153/src/gpio-nxp-74hc153.c deleted file mode 100644 index f683547cfd..0000000000 --- a/package/kernel/gpio-nxp-74hc153/src/gpio-nxp-74hc153.c +++ /dev/null @@ -1,291 +0,0 @@ -/* - * NXP 74HC153 - Dual 4-input multiplexer GPIO driver - * - * Copyright (C) 2010 Gabor Juhos - * Copyright (C) 2020 Mauri Sandberg - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Example device tree definition: - * - * gpio-extender { - * compatible = "nxp,74hc153-gpio"; - * gpio-controller; - * #gpio-cells = <2>; - * - * // GPIOs used by this node - * gpio-s0 = <&gpio 9 GPIO_ACTIVE_HIGH>; - * gpio-s1 = <&gpio 11 GPIO_ACTIVE_HIGH>; - * gpio-1y = <&gpio 12 GPIO_ACTIVE_HIGH>; - * gpio-2y = <&gpio 14 GPIO_ACTIVE_HIGH>; - * }; - * - */ - -#include -#include -#include -#include -#include -#include -#include - -#define NXP_74HC153_NUM_GPIOS 8 -#define NXP_74HC153_S0_MASK 0x1 -#define NXP_74HC153_S1_MASK 0x2 -#define NXP_74HC153_BANK_MASK 0x4 - -#define NXP_74HC153_DRIVER_NAME "nxp-74hc153" - -struct nxp_74hc153_config { - unsigned gpio_pin_s0; - unsigned gpio_pin_s1; - unsigned gpio_pin_1y; - unsigned gpio_pin_2y; -}; - -struct nxp_74hc153_chip { - struct device *parent; - struct gpio_chip gpio_chip; - struct mutex lock; - struct nxp_74hc153_config config; -}; - -static struct nxp_74hc153_chip *gpio_to_nxp(struct gpio_chip *gc) -{ - return container_of(gc, struct nxp_74hc153_chip, gpio_chip); -} - -static int nxp_74hc153_direction_input(struct gpio_chip *gc, unsigned offset) -{ - return 0; -} - -static int nxp_74hc153_direction_output(struct gpio_chip *gc, - unsigned offset, int val) -{ - return -EINVAL; -} - -static int nxp_74hc153_get_value(struct gpio_chip *gc, unsigned offset) -{ - struct nxp_74hc153_chip *nxp; - struct nxp_74hc153_platform_data *pdata; - unsigned s0; - unsigned s1; - unsigned pin; - int ret; - - nxp = gpio_to_nxp(gc); - pdata = nxp->parent->platform_data; - - s0 = !!(offset & NXP_74HC153_S0_MASK); - s1 = !!(offset & NXP_74HC153_S1_MASK); - pin = (offset & NXP_74HC153_BANK_MASK) ? nxp->config.gpio_pin_2y - : nxp->config.gpio_pin_1y; - - mutex_lock(&nxp->lock); - gpio_set_value(nxp->config.gpio_pin_s0, s0); - gpio_set_value(nxp->config.gpio_pin_s1, s1); - ret = gpio_get_value(pin); - mutex_unlock(&nxp->lock); - - return ret; -} - -static void nxp_74hc153_set_value(struct gpio_chip *gc, - unsigned offset, int val) -{ - /* not supported */ -} - -static int nxp_74hc153_probe(struct platform_device *pdev) -{ - struct device_node *np = pdev->dev.of_node; - struct nxp_74hc153_chip *nxp; - struct gpio_chip *gc; - int err; - unsigned gpio_s0; - unsigned gpio_s1; - unsigned gpio_1y; - unsigned gpio_2y; - - nxp = kzalloc(sizeof(struct nxp_74hc153_chip), GFP_KERNEL); - if (nxp == NULL) { - dev_err(&pdev->dev, "no memory for private data\n"); - return -ENOMEM; - } - - gpio_s0 = of_get_named_gpio(np, "gpio-s0", 0); - gpio_s1 = of_get_named_gpio(np, "gpio-s1", 0); - gpio_1y = of_get_named_gpio(np, "gpio-1y", 0); - gpio_2y = of_get_named_gpio(np, "gpio-2y", 0); - - if (!gpio_is_valid(gpio_s0) || !gpio_is_valid(gpio_s1) || - !gpio_is_valid(gpio_1y) || !gpio_is_valid(gpio_2y)) { - - dev_err(&pdev->dev, "control GPIO(s) are missing\n"); - err = -EINVAL; - goto err_free_nxp; - } else { - nxp->config.gpio_pin_s0 = gpio_s0; - nxp->config.gpio_pin_s1 = gpio_s1; - nxp->config.gpio_pin_1y = gpio_1y; - nxp->config.gpio_pin_2y = gpio_2y; - } - - // apply pin configuration - err = gpio_request(nxp->config.gpio_pin_s0, dev_name(&pdev->dev)); - if (err) { - dev_err(&pdev->dev, "unable to claim gpio %u, err=%d\n", - nxp->config.gpio_pin_s0, err); - goto err_free_nxp; - } - - err = gpio_request(nxp->config.gpio_pin_s1, dev_name(&pdev->dev)); - if (err) { - dev_err(&pdev->dev, "unable to claim gpio %u, err=%d\n", - nxp->config.gpio_pin_s1, err); - goto err_free_s0; - } - - err = gpio_request(nxp->config.gpio_pin_1y, dev_name(&pdev->dev)); - if (err) { - dev_err(&pdev->dev, "unable to claim gpio %u, err=%d\n", - nxp->config.gpio_pin_1y, err); - goto err_free_s1; - } - - err = gpio_request(nxp->config.gpio_pin_2y, dev_name(&pdev->dev)); - if (err) { - dev_err(&pdev->dev, "unable to claim gpio %u, err=%d\n", - nxp->config.gpio_pin_2y, err); - goto err_free_1y; - } - - err = gpio_direction_output(nxp->config.gpio_pin_s0, 0); - if (err) { - dev_err(&pdev->dev, - "unable to set direction of gpio %u, err=%d\n", - nxp->config.gpio_pin_s0, err); - goto err_free_2y; - } - - err = gpio_direction_output(nxp->config.gpio_pin_s1, 0); - if (err) { - dev_err(&pdev->dev, - "unable to set direction of gpio %u, err=%d\n", - nxp->config.gpio_pin_s1, err); - goto err_free_2y; - } - - err = gpio_direction_input(nxp->config.gpio_pin_1y); - if (err) { - dev_err(&pdev->dev, - "unable to set direction of gpio %u, err=%d\n", - nxp->config.gpio_pin_1y, err); - goto err_free_2y; - } - - err = gpio_direction_input(nxp->config.gpio_pin_2y); - if (err) { - dev_err(&pdev->dev, - "unable to set direction of gpio %u, err=%d\n", - nxp->config.gpio_pin_2y, err); - goto err_free_2y; - } - - nxp->parent = &pdev->dev; - mutex_init(&nxp->lock); - - gc = &nxp->gpio_chip; - - gc->direction_input = nxp_74hc153_direction_input; - gc->direction_output = nxp_74hc153_direction_output; - gc->get = nxp_74hc153_get_value; - gc->set = nxp_74hc153_set_value; - gc->can_sleep = 1; - - gc->base = -1; - gc->ngpio = NXP_74HC153_NUM_GPIOS; - gc->label = dev_name(nxp->parent); - gc->parent = nxp->parent; - gc->owner = THIS_MODULE; - gc->of_node = np; - - err = gpiochip_add(&nxp->gpio_chip); - if (err) { - dev_err(&pdev->dev, "unable to add gpio chip, err=%d\n", err); - goto err_free_2y; - } - - platform_set_drvdata(pdev, nxp); - return 0; - -err_free_2y: - gpio_free(nxp->config.gpio_pin_2y); -err_free_1y: - gpio_free(nxp->config.gpio_pin_1y); -err_free_s1: - gpio_free(nxp->config.gpio_pin_s1); -err_free_s0: - gpio_free(nxp->config.gpio_pin_s0); -err_free_nxp: - kfree(nxp); - return err; -} - -static int nxp_74hc153_remove(struct platform_device *pdev) -{ - struct nxp_74hc153_chip *nxp = platform_get_drvdata(pdev); - - if (nxp) { - gpiochip_remove(&nxp->gpio_chip); - gpio_free(nxp->config.gpio_pin_2y); - gpio_free(nxp->config.gpio_pin_1y); - gpio_free(nxp->config.gpio_pin_s1); - gpio_free(nxp->config.gpio_pin_s0); - - kfree(nxp); - platform_set_drvdata(pdev, NULL); - } - - return 0; -} - -static struct of_device_id nxp_74hc153_id[] = { - { - .compatible = "nxp,74hc153-gpio", - .data = NULL, - }, { /* sentinel */ } -}; -MODULE_DEVICE_TABLE(of, nxp_74hc153_id); - -static struct platform_driver nxp_74hc153_driver = { - .probe = nxp_74hc153_probe, - .remove = nxp_74hc153_remove, - .driver = { - .name = NXP_74HC153_DRIVER_NAME, - .owner = THIS_MODULE, - .of_match_table = nxp_74hc153_id, - }, -}; - -static int __init nxp_74hc153_init(void) -{ - return platform_driver_register(&nxp_74hc153_driver); -} -subsys_initcall(nxp_74hc153_init); - -static void __exit nxp_74hc153_exit(void) -{ - platform_driver_unregister(&nxp_74hc153_driver); -} -module_exit(nxp_74hc153_exit); - -MODULE_AUTHOR("Gabor Juhos "); -MODULE_DESCRIPTION("GPIO expander driver for NXP 74HC153"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:" NXP_74HC153_DRIVER_NAME);