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gpio: mockup: support irqmask and irqunmask

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

Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Bartosz Golaszewski 2017-05-25 10:33:41 +02:00 committed by Linus Walleij
parent 01a3f23c16
commit c7f5326fb4
1 changed files with 20 additions and 6 deletions
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26
drivers/gpio/gpio-mockup.c
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@ -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;