gpio: remove iop driver

The iop32x platform was removed, and its gpio driver is now
orphaned.

Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

drivers/gpio/Kconfig

@@ -354,16 +354,6 @@ config GPIO_IMX_SCU
        def_bool y
        depends on IMX_SCU
 
-config GPIO_IOP
-	tristate "Intel IOP GPIO"
-	depends on ARCH_IOP32X || COMPILE_TEST
-	select GPIO_GENERIC
-	help
-	  Say yes here to support the GPIO functionality of a number of Intel
-	  IOP32X or IOP33X series of chips.
-
-	  If unsure, say N.
-
 config GPIO_IXP4XX
 	bool "Intel IXP4xx GPIO"
 	depends on ARCH_IXP4XX

drivers/gpio/Makefile

@@ -72,7 +72,6 @@ obj-$(CONFIG_GPIO_ICH)			+= gpio-ich.o
 obj-$(CONFIG_GPIO_IDIO_16)		+= gpio-idio-16.o
 obj-$(CONFIG_GPIO_IDT3243X)		+= gpio-idt3243x.o
 obj-$(CONFIG_GPIO_IMX_SCU)		+= gpio-imx-scu.o
-obj-$(CONFIG_GPIO_IOP)			+= gpio-iop.o
 obj-$(CONFIG_GPIO_IT87)			+= gpio-it87.o
 obj-$(CONFIG_GPIO_IXP4XX)		+= gpio-ixp4xx.o
 obj-$(CONFIG_GPIO_JANZ_TTL)		+= gpio-janz-ttl.o

drivers/gpio/gpio-iop.c

-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * arch/arm/plat-iop/gpio.c
- * GPIO handling for Intel IOP3xx processors.
- *
- * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
- */
-
-#include <linux/err.h>
-#include <linux/module.h>
-#include <linux/gpio/driver.h>
-#include <linux/platform_device.h>
-
-#define IOP3XX_GPOE	0x0000
-#define IOP3XX_GPID	0x0004
-#define IOP3XX_GPOD	0x0008
-
-static int iop3xx_gpio_probe(struct platform_device *pdev)
-{
-	struct gpio_chip *gc;
-	void __iomem *base;
-	int err;
-
-	gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
-	if (!gc)
-		return -ENOMEM;
-
-	base = devm_platform_ioremap_resource(pdev, 0);
-	if (IS_ERR(base))
-		return PTR_ERR(base);
-
-	err = bgpio_init(gc, &pdev->dev, 1, base + IOP3XX_GPID,
-			 base + IOP3XX_GPOD, NULL, NULL, base + IOP3XX_GPOE, 0);
-	if (err)
-		return err;
-
-	gc->base = 0;
-	gc->owner = THIS_MODULE;
-	gc->label = "gpio-iop";
-
-	return devm_gpiochip_add_data(&pdev->dev, gc, NULL);
-}
-
-static struct platform_driver iop3xx_gpio_driver = {
-	.driver = {
-		.name = "gpio-iop",
-	},
-	.probe = iop3xx_gpio_probe,
-};
-
-static int __init iop3xx_gpio_init(void)
-{
-	return platform_driver_register(&iop3xx_gpio_driver);
-}
-arch_initcall(iop3xx_gpio_init);
-
-MODULE_DESCRIPTION("GPIO handling for Intel IOP3xx processors");
-MODULE_AUTHOR("Lennert Buytenhek <buytenh@wantstofly.org>");
-MODULE_LICENSE("GPL");