/*
- * Gemini gpiochip and interrupt routines
+ * Faraday Technolog FTGPIO010 gpiochip and interrupt routines
* Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
*
* Based on arch/arm/mach-gemini/gpio.c:
#define GPIO_DEBOUNCE_PRESCALE 0x44
/**
- * struct gemini_gpio - Gemini GPIO state container
+ * struct ftgpio_gpio - Gemini GPIO state container
* @dev: containing device for this instance
* @gc: gpiochip for this instance
*/
-struct gemini_gpio {
+struct ftgpio_gpio {
struct device *dev;
struct gpio_chip gc;
void __iomem *base;
};
-static void gemini_gpio_ack_irq(struct irq_data *d)
+static void ftgpio_gpio_ack_irq(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- struct gemini_gpio *g = gpiochip_get_data(gc);
+ struct ftgpio_gpio *g = gpiochip_get_data(gc);
writel(BIT(irqd_to_hwirq(d)), g->base + GPIO_INT_CLR);
}
-static void gemini_gpio_mask_irq(struct irq_data *d)
+static void ftgpio_gpio_mask_irq(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- struct gemini_gpio *g = gpiochip_get_data(gc);
+ struct ftgpio_gpio *g = gpiochip_get_data(gc);
u32 val;
val = readl(g->base + GPIO_INT_EN);
writel(val, g->base + GPIO_INT_EN);
}
-static void gemini_gpio_unmask_irq(struct irq_data *d)
+static void ftgpio_gpio_unmask_irq(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- struct gemini_gpio *g = gpiochip_get_data(gc);
+ struct ftgpio_gpio *g = gpiochip_get_data(gc);
u32 val;
val = readl(g->base + GPIO_INT_EN);
writel(val, g->base + GPIO_INT_EN);
}
-static int gemini_gpio_set_irq_type(struct irq_data *d, unsigned int type)
+static int ftgpio_gpio_set_irq_type(struct irq_data *d, unsigned int type)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- struct gemini_gpio *g = gpiochip_get_data(gc);
+ struct ftgpio_gpio *g = gpiochip_get_data(gc);
u32 mask = BIT(irqd_to_hwirq(d));
u32 reg_both, reg_level, reg_type;
writel(reg_level, g->base + GPIO_INT_LEVEL);
writel(reg_both, g->base + GPIO_INT_BOTH_EDGE);
- gemini_gpio_ack_irq(d);
+ ftgpio_gpio_ack_irq(d);
return 0;
}
-static struct irq_chip gemini_gpio_irqchip = {
- .name = "GPIO",
- .irq_ack = gemini_gpio_ack_irq,
- .irq_mask = gemini_gpio_mask_irq,
- .irq_unmask = gemini_gpio_unmask_irq,
- .irq_set_type = gemini_gpio_set_irq_type,
+static struct irq_chip ftgpio_gpio_irqchip = {
+ .name = "FTGPIO010",
+ .irq_ack = ftgpio_gpio_ack_irq,
+ .irq_mask = ftgpio_gpio_mask_irq,
+ .irq_unmask = ftgpio_gpio_unmask_irq,
+ .irq_set_type = ftgpio_gpio_set_irq_type,
};
-static void gemini_gpio_irq_handler(struct irq_desc *desc)
+static void ftgpio_gpio_irq_handler(struct irq_desc *desc)
{
struct gpio_chip *gc = irq_desc_get_handler_data(desc);
- struct gemini_gpio *g = gpiochip_get_data(gc);
+ struct ftgpio_gpio *g = gpiochip_get_data(gc);
struct irq_chip *irqchip = irq_desc_get_chip(desc);
int offset;
unsigned long stat;
chained_irq_exit(irqchip, desc);
}
-static int gemini_gpio_probe(struct platform_device *pdev)
+static int ftgpio_gpio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct resource *res;
- struct gemini_gpio *g;
+ struct ftgpio_gpio *g;
int irq;
int ret;
dev_err(dev, "unable to init generic GPIO\n");
return ret;
}
- g->gc.label = "Gemini";
+ g->gc.label = "FTGPIO010";
g->gc.base = -1;
g->gc.parent = dev;
g->gc.owner = THIS_MODULE;
writel(0x0, g->base + GPIO_INT_MASK);
writel(~0x0, g->base + GPIO_INT_CLR);
- ret = gpiochip_irqchip_add(&g->gc, &gemini_gpio_irqchip,
+ ret = gpiochip_irqchip_add(&g->gc, &ftgpio_gpio_irqchip,
0, handle_bad_irq,
IRQ_TYPE_NONE);
if (ret) {
dev_info(dev, "could not add irqchip\n");
return ret;
}
- gpiochip_set_chained_irqchip(&g->gc, &gemini_gpio_irqchip,
- irq, gemini_gpio_irq_handler);
+ gpiochip_set_chained_irqchip(&g->gc, &ftgpio_gpio_irqchip,
+ irq, ftgpio_gpio_irq_handler);
- dev_info(dev, "Gemini GPIO @%p registered\n", g->base);
+ dev_info(dev, "FTGPIO010 @%p registered\n", g->base);
return 0;
}
-static const struct of_device_id gemini_gpio_of_match[] = {
+static const struct of_device_id ftgpio_gpio_of_match[] = {
{
.compatible = "cortina,gemini-gpio",
},
+ {
+ .compatible = "moxa,moxart-gpio",
+ },
+ {
+ .compatible = "faraday,ftgpio010",
+ },
{},
};
-static struct platform_driver gemini_gpio_driver = {
+static struct platform_driver ftgpio_gpio_driver = {
.driver = {
- .name = "gemini-gpio",
- .of_match_table = of_match_ptr(gemini_gpio_of_match),
+ .name = "ftgpio010-gpio",
+ .of_match_table = of_match_ptr(ftgpio_gpio_of_match),
},
- .probe = gemini_gpio_probe,
+ .probe = ftgpio_gpio_probe,
};
-builtin_platform_driver(gemini_gpio_driver);
+builtin_platform_driver(ftgpio_gpio_driver);