Adding upstream version 6.7.7.upstream/6.7.7

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 332 deletions

diff --git a/arch/mips/ar7/gpio.c b/arch/mips/ar7/gpio.c
deleted file mode 100644
index 4ed833b9cc..0000000000
--- a/arch/mips/ar7/gpio.c
+++ /dev/null
@@ -1,332 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2007 Felix Fietkau <nbd@openwrt.org>
- * Copyright (C) 2007 Eugene Konev <ejka@openwrt.org>
- * Copyright (C) 2009-2010 Florian Fainelli <florian@openwrt.org>
- */
-
-#include <linux/init.h>
-#include <linux/export.h>
-#include <linux/gpio/driver.h>
-
-#include <asm/mach-ar7/ar7.h>
-
-#define AR7_GPIO_MAX 32
-#define TITAN_GPIO_MAX 51
-
-struct ar7_gpio_chip {
-	void __iomem		*regs;
-	struct gpio_chip	chip;
-};
-
-static int ar7_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
-{
-	struct ar7_gpio_chip *gpch = gpiochip_get_data(chip);
-	void __iomem *gpio_in = gpch->regs + AR7_GPIO_INPUT;
-
-	return !!(readl(gpio_in) & (1 << gpio));
-}
-
-static int titan_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
-{
-	struct ar7_gpio_chip *gpch = gpiochip_get_data(chip);
-	void __iomem *gpio_in0 = gpch->regs + TITAN_GPIO_INPUT_0;
-	void __iomem *gpio_in1 = gpch->regs + TITAN_GPIO_INPUT_1;
-
-	return readl(gpio >> 5 ? gpio_in1 : gpio_in0) & (1 << (gpio & 0x1f));
-}
-
-static void ar7_gpio_set_value(struct gpio_chip *chip,
-				unsigned gpio, int value)
-{
-	struct ar7_gpio_chip *gpch = gpiochip_get_data(chip);
-	void __iomem *gpio_out = gpch->regs + AR7_GPIO_OUTPUT;
-	unsigned tmp;
-
-	tmp = readl(gpio_out) & ~(1 << gpio);
-	if (value)
-		tmp |= 1 << gpio;
-	writel(tmp, gpio_out);
-}
-
-static void titan_gpio_set_value(struct gpio_chip *chip,
-				unsigned gpio, int value)
-{
-	struct ar7_gpio_chip *gpch = gpiochip_get_data(chip);
-	void __iomem *gpio_out0 = gpch->regs + TITAN_GPIO_OUTPUT_0;
-	void __iomem *gpio_out1 = gpch->regs + TITAN_GPIO_OUTPUT_1;
-	unsigned tmp;
-
-	tmp = readl(gpio >> 5 ? gpio_out1 : gpio_out0) & ~(1 << (gpio & 0x1f));
-	if (value)
-		tmp |= 1 << (gpio & 0x1f);
-	writel(tmp, gpio >> 5 ? gpio_out1 : gpio_out0);
-}
-
-static int ar7_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
-{
-	struct ar7_gpio_chip *gpch = gpiochip_get_data(chip);
-	void __iomem *gpio_dir = gpch->regs + AR7_GPIO_DIR;
-
-	writel(readl(gpio_dir) | (1 << gpio), gpio_dir);
-
-	return 0;
-}
-
-static int titan_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
-{
-	struct ar7_gpio_chip *gpch = gpiochip_get_data(chip);
-	void __iomem *gpio_dir0 = gpch->regs + TITAN_GPIO_DIR_0;
-	void __iomem *gpio_dir1 = gpch->regs + TITAN_GPIO_DIR_1;
-
-	if (gpio >= TITAN_GPIO_MAX)
-		return -EINVAL;
-
-	writel(readl(gpio >> 5 ? gpio_dir1 : gpio_dir0) | (1 << (gpio & 0x1f)),
-			gpio >> 5 ? gpio_dir1 : gpio_dir0);
-	return 0;
-}
-
-static int ar7_gpio_direction_output(struct gpio_chip *chip,
-					unsigned gpio, int value)
-{
-	struct ar7_gpio_chip *gpch = gpiochip_get_data(chip);
-	void __iomem *gpio_dir = gpch->regs + AR7_GPIO_DIR;
-
-	ar7_gpio_set_value(chip, gpio, value);
-	writel(readl(gpio_dir) & ~(1 << gpio), gpio_dir);
-
-	return 0;
-}
-
-static int titan_gpio_direction_output(struct gpio_chip *chip,
-					unsigned gpio, int value)
-{
-	struct ar7_gpio_chip *gpch = gpiochip_get_data(chip);
-	void __iomem *gpio_dir0 = gpch->regs + TITAN_GPIO_DIR_0;
-	void __iomem *gpio_dir1 = gpch->regs + TITAN_GPIO_DIR_1;
-
-	if (gpio >= TITAN_GPIO_MAX)
-		return -EINVAL;
-
-	titan_gpio_set_value(chip, gpio, value);
-	writel(readl(gpio >> 5 ? gpio_dir1 : gpio_dir0) & ~(1 <<
-		(gpio & 0x1f)), gpio >> 5 ? gpio_dir1 : gpio_dir0);
-
-	return 0;
-}
-
-static struct ar7_gpio_chip ar7_gpio_chip = {
-	.chip = {
-		.label			= "ar7-gpio",
-		.direction_input	= ar7_gpio_direction_input,
-		.direction_output	= ar7_gpio_direction_output,
-		.set			= ar7_gpio_set_value,
-		.get			= ar7_gpio_get_value,
-		.base			= 0,
-		.ngpio			= AR7_GPIO_MAX,
-	}
-};
-
-static struct ar7_gpio_chip titan_gpio_chip = {
-	.chip = {
-		.label			= "titan-gpio",
-		.direction_input	= titan_gpio_direction_input,
-		.direction_output	= titan_gpio_direction_output,
-		.set			= titan_gpio_set_value,
-		.get			= titan_gpio_get_value,
-		.base			= 0,
-		.ngpio			= TITAN_GPIO_MAX,
-	}
-};
-
-static inline int ar7_gpio_enable_ar7(unsigned gpio)
-{
-	void __iomem *gpio_en = ar7_gpio_chip.regs + AR7_GPIO_ENABLE;
-
-	writel(readl(gpio_en) | (1 << gpio), gpio_en);
-
-	return 0;
-}
-
-static inline int ar7_gpio_enable_titan(unsigned gpio)
-{
-	void __iomem *gpio_en0 = titan_gpio_chip.regs  + TITAN_GPIO_ENBL_0;
-	void __iomem *gpio_en1 = titan_gpio_chip.regs  + TITAN_GPIO_ENBL_1;
-
-	writel(readl(gpio >> 5 ? gpio_en1 : gpio_en0) | (1 << (gpio & 0x1f)),
-		gpio >> 5 ? gpio_en1 : gpio_en0);
-
-	return 0;
-}
-
-int ar7_gpio_enable(unsigned gpio)
-{
-	return ar7_is_titan() ? ar7_gpio_enable_titan(gpio) :
-				ar7_gpio_enable_ar7(gpio);
-}
-EXPORT_SYMBOL(ar7_gpio_enable);
-
-static inline int ar7_gpio_disable_ar7(unsigned gpio)
-{
-	void __iomem *gpio_en = ar7_gpio_chip.regs + AR7_GPIO_ENABLE;
-
-	writel(readl(gpio_en) & ~(1 << gpio), gpio_en);
-
-	return 0;
-}
-
-static inline int ar7_gpio_disable_titan(unsigned gpio)
-{
-	void __iomem *gpio_en0 = titan_gpio_chip.regs + TITAN_GPIO_ENBL_0;
-	void __iomem *gpio_en1 = titan_gpio_chip.regs + TITAN_GPIO_ENBL_1;
-
-	writel(readl(gpio >> 5 ? gpio_en1 : gpio_en0) & ~(1 << (gpio & 0x1f)),
-			gpio >> 5 ? gpio_en1 : gpio_en0);
-
-	return 0;
-}
-
-int ar7_gpio_disable(unsigned gpio)
-{
-	return ar7_is_titan() ? ar7_gpio_disable_titan(gpio) :
-				ar7_gpio_disable_ar7(gpio);
-}
-EXPORT_SYMBOL(ar7_gpio_disable);
-
-struct titan_gpio_cfg {
-	u32 reg;
-	u32 shift;
-	u32 func;
-};
-
-static const struct titan_gpio_cfg titan_gpio_table[] = {
-	/* reg, start bit, mux value */
-	{4, 24, 1},
-	{4, 26, 1},
-	{4, 28, 1},
-	{4, 30, 1},
-	{5, 6, 1},
-	{5, 8, 1},
-	{5, 10, 1},
-	{5, 12, 1},
-	{7, 14, 3},
-	{7, 16, 3},
-	{7, 18, 3},
-	{7, 20, 3},
-	{7, 22, 3},
-	{7, 26, 3},
-	{7, 28, 3},
-	{7, 30, 3},
-	{8, 0, 3},
-	{8, 2, 3},
-	{8, 4, 3},
-	{8, 10, 3},
-	{8, 14, 3},
-	{8, 16, 3},
-	{8, 18, 3},
-	{8, 20, 3},
-	{9, 8, 3},
-	{9, 10, 3},
-	{9, 12, 3},
-	{9, 14, 3},
-	{9, 18, 3},
-	{9, 20, 3},
-	{9, 24, 3},
-	{9, 26, 3},
-	{9, 28, 3},
-	{9, 30, 3},
-	{10, 0, 3},
-	{10, 2, 3},
-	{10, 8, 3},
-	{10, 10, 3},
-	{10, 12, 3},
-	{10, 14, 3},
-	{13, 12, 3},
-	{13, 14, 3},
-	{13, 16, 3},
-	{13, 18, 3},
-	{13, 24, 3},
-	{13, 26, 3},
-	{13, 28, 3},
-	{13, 30, 3},
-	{14, 2, 3},
-	{14, 6, 3},
-	{14, 8, 3},
-	{14, 12, 3}
-};
-
-static int titan_gpio_pinsel(unsigned gpio)
-{
-	struct titan_gpio_cfg gpio_cfg;
-	u32 mux_status, pin_sel_reg, tmp;
-	void __iomem *pin_sel = (void __iomem *)KSEG1ADDR(AR7_REGS_PINSEL);
-
-	if (gpio >= ARRAY_SIZE(titan_gpio_table))
-		return -EINVAL;
-
-	gpio_cfg = titan_gpio_table[gpio];
-	pin_sel_reg = gpio_cfg.reg - 1;
-
-	mux_status = (readl(pin_sel + pin_sel_reg) >> gpio_cfg.shift) & 0x3;
-
-	/* Check the mux status */
-	if (!((mux_status == 0) || (mux_status == gpio_cfg.func)))
-		return 0;
-
-	/* Set the pin sel value */
-	tmp = readl(pin_sel + pin_sel_reg);
-	tmp |= ((gpio_cfg.func & 0x3) << gpio_cfg.shift);
-	writel(tmp, pin_sel + pin_sel_reg);
-
-	return 0;
-}
-
-/* Perform minimal Titan GPIO configuration */
-static void titan_gpio_init(void)
-{
-	unsigned i;
-
-	for (i = 44; i < 48; i++) {
-		titan_gpio_pinsel(i);
-		ar7_gpio_enable_titan(i);
-		titan_gpio_direction_input(&titan_gpio_chip.chip, i);
-	}
-}
-
-int __init ar7_gpio_init(void)
-{
-	int ret;
-	struct ar7_gpio_chip *gpch;
-	unsigned size;
-
-	if (!ar7_is_titan()) {
-		gpch = &ar7_gpio_chip;
-		size = 0x10;
-	} else {
-		gpch = &titan_gpio_chip;
-		size = 0x1f;
-	}
-
-	gpch->regs = ioremap(AR7_REGS_GPIO, size);
-	if (!gpch->regs) {
-		printk(KERN_ERR "%s: failed to ioremap regs\n",
-					gpch->chip.label);
-		return -ENOMEM;
-	}
-
-	ret = gpiochip_add_data(&gpch->chip, gpch);
-	if (ret) {
-		printk(KERN_ERR "%s: failed to add gpiochip\n",
-					gpch->chip.label);
-		iounmap(gpch->regs);
-		return ret;
-	}
-	printk(KERN_INFO "%s: registered %d GPIOs\n",
-				gpch->chip.label, gpch->chip.ngpio);
-
-	if (ar7_is_titan())
-		titan_gpio_init();
-
-	return ret;
-}