arm/plat-orion/gpio.c

97 __set_direction(struct orion_gpio_chip *ochip, unsigned pin, int input)
103 		u |= 1 << pin;
105 		u &= ~(1 << pin);
109 static void __set_level(struct orion_gpio_chip *ochip, unsigned pin, int high)
115 		u |= 1 << pin;
117 		u &= ~(1 << pin);
122 __set_blinking(struct orion_gpio_chip *ochip, unsigned pin, int blink)
128 		u |= 1 << pin;
130 		u &= ~(1 << pin);
135 orion_gpio_is_valid(struct orion_gpio_chip *ochip, unsigned pin, int mode)
137 	if (pin >= ochip->chip.ngpio)
140 	if ((mode & GPIO_INPUT_OK) && !test_bit(pin, &ochip->valid_input))
143 	if ((mode & GPIO_OUTPUT_OK) && !test_bit(pin, &ochip->valid_output))
149 	pr_debug("%s: invalid GPIO %d\n", __func__, pin);
156 static int orion_gpio_request(struct gpio_chip *chip, unsigned pin)
160 	if (orion_gpio_is_valid(ochip, pin, GPIO_INPUT_OK) ||
161 	    orion_gpio_is_valid(ochip, pin, GPIO_OUTPUT_OK))
167 static int orion_gpio_direction_input(struct gpio_chip *chip, unsigned pin)
172 	if (!orion_gpio_is_valid(ochip, pin, GPIO_INPUT_OK))
176 	__set_direction(ochip, pin, 1);
182 static int orion_gpio_get(struct gpio_chip *chip, unsigned pin)
187 	if (readl(GPIO_IO_CONF(ochip)) & (1 << pin)) {
193 	return (val >> pin) & 1;
197 orion_gpio_direction_output(struct gpio_chip *chip, unsigned pin, int value)
202 	if (!orion_gpio_is_valid(ochip, pin, GPIO_OUTPUT_OK))
206 	__set_blinking(ochip, pin, 0);
207 	__set_level(ochip, pin, value);
208 	__set_direction(ochip, pin, 0);
214 static int orion_gpio_set(struct gpio_chip *chip, unsigned int pin, int value)
220 	__set_level(ochip, pin, value);
226 static int orion_gpio_to_irq(struct gpio_chip *chip, unsigned pin)
231 				  ochip->secondary_irq_base + pin);
237 static struct orion_gpio_chip *orion_gpio_chip_find(int pin)
245 		if (pin >= chip->base && pin < chip->base + chip->ngpio)
252 void __init orion_gpio_set_unused(unsigned pin)
254 	struct orion_gpio_chip *ochip = orion_gpio_chip_find(pin);
259 	pin -= ochip->chip.base;
262 	__set_level(ochip, pin, 0);
263 	__set_direction(ochip, pin, 0);
266 void __init orion_gpio_set_valid(unsigned pin, int mode)
268 	struct orion_gpio_chip *ochip = orion_gpio_chip_find(pin);
273 	pin -= ochip->chip.base;
279 		__set_bit(pin, &ochip->valid_input);
281 		__clear_bit(pin, &ochip->valid_input);
284 		__set_bit(pin, &ochip->valid_output);
286 		__clear_bit(pin, &ochip->valid_output);
289 void orion_gpio_set_blink(unsigned pin, int blink)
291 	struct orion_gpio_chip *ochip = orion_gpio_chip_find(pin);
298 	__set_level(ochip, pin & 31, 0);
299 	__set_blinking(ochip, pin & 31, blink);
359 	int pin;
362 	pin = d->hwirq - ochip->secondary_irq_base;
364 	u = readl(GPIO_IO_CONF(ochip)) & (1 << pin);
383 		u &= ~(1 << pin);
387 		u |= 1 << pin;
398 		if (v & (1 << pin))
399 			u |= 1 << pin;		/* falling */
401 			u &= ~(1 << pin);	/* rising */