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Commit c7f5326f authored by Bartosz Golaszewski's avatar Bartosz Golaszewski Committed by Linus Walleij
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gpio: mockup: support irqmask and irqunmask 



Even though this is a testing module, be nice and actually implement
these functions.

Signed-off-by: default avatarBartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 01a3f23c

drivers/gpio/gpio-mockup.c

+20 −6
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ enum { 
struct gpio_mockup_line_status {

	int dir;

	bool value;

	bool irq_enabled;

};



struct gpio_mockup_irq_context {
@@ -142,12 +143,21 @@ static int gpio_mockup_to_irq(struct gpio_chip *chip, unsigned int offset) 
	return chip->irq_base + offset;

}



/*

 * While we should generally support irqmask and irqunmask, this driver is

 * for testing purposes only so we don't care.

 */

static void gpio_mockup_irqmask(struct irq_data *d) { }

static void gpio_mockup_irqunmask(struct irq_data *d) { }

static void gpio_mockup_irqmask(struct irq_data *data)

{

	struct gpio_chip *gc = irq_data_get_irq_chip_data(data);

	struct gpio_mockup_chip *chip = gpiochip_get_data(gc);



	chip->lines[data->irq - gc->irq_base].irq_enabled = false;

}



static void gpio_mockup_irqunmask(struct irq_data *data)

{

	struct gpio_chip *gc = irq_data_get_irq_chip_data(data);

	struct gpio_mockup_chip *chip = gpiochip_get_data(gc);



	chip->lines[data->irq - gc->irq_base].irq_enabled = true;

}



static struct irq_chip gpio_mockup_irqchip = {

	.name		= GPIO_MOCKUP_NAME,
@@ -178,6 +188,7 @@ static int gpio_mockup_irqchip_setup(struct device *dev, 


	for (i = 0; i < gc->ngpio; i++) {

		irq_set_chip(irq_base + i, gc->irqchip);

		irq_set_chip_data(irq_base + i, gc);

		irq_set_handler(irq_base + i, &handle_simple_irq);

		irq_modify_status(irq_base + i,

				  IRQ_NOREQUEST | IRQ_NOAUTOEN, IRQ_NOPROBE);
@@ -206,6 +217,9 @@ static ssize_t gpio_mockup_event_write(struct file *file, 
	chip = priv->chip;

	gc = &chip->gc;



	if (!chip->lines[priv->offset].irq_enabled)

		return size;



	if (copy_from_user(&buf, usr_buf, 1))

		return -EFAULT;