Even though this is a testing module, be nice and actually implement these functions.
Signed-off-by: Bartosz Golaszewski <[email protected]> --- drivers/gpio/gpio-mockup.c | 26 ++++++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-) diff --git a/drivers/gpio/gpio-mockup.c b/drivers/gpio/gpio-mockup.c index c17578e..ba8d62a 100644 --- a/drivers/gpio/gpio-mockup.c +++ b/drivers/gpio/gpio-mockup.c @@ -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; -- 2.9.3
