gpio: samsung: Drop s3c2440_gpio driver

This is no longer used in U-Boot. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>

drivers/gpio/Makefile

@@ -42,7 +42,6 @@ obj-$(CONFIG_SH_GPIO_PFC)	+= sh_pfc.o
 obj-$(CONFIG_OMAP_GPIO)	+= omap_gpio.o
 obj-$(CONFIG_DB8500_GPIO)	+= db8500_gpio.o
 obj-$(CONFIG_BCM2835_GPIO)	+= bcm2835_gpio.o
-obj-$(CONFIG_S3C2440_GPIO)	+= s3c2440_gpio.o
 obj-$(CONFIG_XILINX_GPIO)	+= xilinx_gpio.o
 obj-$(CONFIG_ADI_GPIO2)	+= adi_gpio2.o
 obj-$(CONFIG_TCA642X)		+= tca642x.o

drivers/gpio/s3c2440_gpio.c

@@ -1,88 +0,0 @@
-/*
- * Copyright (C) 2012
- * Gabriel Huau <contact@huau-gabriel.fr>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-#include <common.h>
-#include <asm/arch/s3c2440.h>
-#include <asm/gpio.h>
-#include <asm/io.h>
-#include <errno.h>
-
-#define GPIO_INPUT  0x0
-#define GPIO_OUTPUT 0x1
-
-#define S3C_GPIO_CON	0x0
-#define S3C_GPIO_DAT	0x4
-
-static uint32_t s3c_gpio_get_bank_addr(unsigned gpio)
-{
-	/* There is up to 16 pins per bank, one bank is 0x10 big. */
-	uint32_t addr = gpio & ~0xf;
-
-	if (addr >= 0x80 && addr != 0xd0) {	/* Wrong GPIO bank. */
-		printf("Invalid GPIO bank (bank %02x)\n", addr);
-		return 0xffffffff;
-	}
-
-	return addr | S3C24X0_GPIO_BASE;
-}
-
-int gpio_set_value(unsigned gpio, int value)
-{
-	uint32_t addr = s3c_gpio_get_bank_addr(gpio);
-
-	if (addr == 0xffffffff)
-		return -EINVAL;
-
-	if (value)
-		setbits_le32(addr | S3C_GPIO_DAT, 1 << (gpio & 0xf));
-	else
-		clrbits_le32(addr | S3C_GPIO_DAT, 1 << (gpio & 0xf));
-
-	return 0;
-}
-
-int gpio_get_value(unsigned gpio)
-{
-	uint32_t addr = s3c_gpio_get_bank_addr(gpio);
-
-	if (addr == 0xffffffff)
-		return -EINVAL;
-
-	return !!(readl(addr | S3C_GPIO_DAT) & (1 << (gpio & 0xf)));
-}
-
-int gpio_request(unsigned gpio, const char *label)
-{
-	return 0;
-}
-
-int gpio_free(unsigned gpio)
-{
-	return 0;
-}
-
-static int s3c_gpio_direction(unsigned gpio, uint8_t dir)
-{
-	uint32_t addr = s3c_gpio_get_bank_addr(gpio);
-	const uint32_t mask = 0x3 << ((gpio & 0xf) << 1);
-	const uint32_t dirm = dir << ((gpio & 0xf) << 1);
-
-	if (addr == 0xffffffff)
-		return -EINVAL;
-
-	clrsetbits_le32(addr | S3C_GPIO_CON, mask, dirm);
-	return 0;
-}
-
-int gpio_direction_input(unsigned gpio)
-{
-	return s3c_gpio_direction(gpio, GPIO_INPUT);
-}
-
-int gpio_direction_output(unsigned gpio, int value)
-{
-	return s3c_gpio_direction(gpio, GPIO_OUTPUT);
-}