diff options
Diffstat (limited to 'drivers/gpio/gpio-pcf857x.c')
| -rw-r--r-- | drivers/gpio/gpio-pcf857x.c | 41 |
1 files changed, 13 insertions, 28 deletions
diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c index adf72dda25a2..c9b650f617fa 100644 --- a/drivers/gpio/gpio-pcf857x.c +++ b/drivers/gpio/gpio-pcf857x.c @@ -84,11 +84,11 @@ MODULE_DEVICE_TABLE(of, pcf857x_of_table); */ struct pcf857x { struct gpio_chip chip; + struct irq_chip irqchip; struct i2c_client *client; struct mutex lock; /* protect 'out' */ unsigned out; /* software latch */ unsigned status; /* current status */ - unsigned int irq_parent; unsigned irq_enabled; /* enabled irqs */ int (*write)(struct i2c_client *client, unsigned data); @@ -210,18 +210,7 @@ static int pcf857x_irq_set_wake(struct irq_data *data, unsigned int on) { struct pcf857x *gpio = irq_data_get_irq_chip_data(data); - int error = 0; - - if (gpio->irq_parent) { - error = irq_set_irq_wake(gpio->irq_parent, on); - if (error) { - dev_dbg(&gpio->client->dev, - "irq %u doesn't support irq_set_wake\n", - gpio->irq_parent); - gpio->irq_parent = 0; - } - } - return error; + return irq_set_irq_wake(gpio->client->irq, on); } static void pcf857x_irq_enable(struct irq_data *data) @@ -252,18 +241,6 @@ static void pcf857x_irq_bus_sync_unlock(struct irq_data *data) mutex_unlock(&gpio->lock); } -static struct irq_chip pcf857x_irq_chip = { - .name = "pcf857x", - .irq_enable = pcf857x_irq_enable, - .irq_disable = pcf857x_irq_disable, - .irq_ack = noop, - .irq_mask = noop, - .irq_unmask = noop, - .irq_set_wake = pcf857x_irq_set_wake, - .irq_bus_lock = pcf857x_irq_bus_lock, - .irq_bus_sync_unlock = pcf857x_irq_bus_sync_unlock, -}; - /*-------------------------------------------------------------------------*/ static int pcf857x_probe(struct i2c_client *client, @@ -376,8 +353,17 @@ static int pcf857x_probe(struct i2c_client *client, /* Enable irqchip if we have an interrupt */ if (client->irq) { + gpio->irqchip.name = "pcf857x", + gpio->irqchip.irq_enable = pcf857x_irq_enable, + gpio->irqchip.irq_disable = pcf857x_irq_disable, + gpio->irqchip.irq_ack = noop, + gpio->irqchip.irq_mask = noop, + gpio->irqchip.irq_unmask = noop, + gpio->irqchip.irq_set_wake = pcf857x_irq_set_wake, + gpio->irqchip.irq_bus_lock = pcf857x_irq_bus_lock, + gpio->irqchip.irq_bus_sync_unlock = pcf857x_irq_bus_sync_unlock, status = gpiochip_irqchip_add_nested(&gpio->chip, - &pcf857x_irq_chip, + &gpio->irqchip, 0, handle_level_irq, IRQ_TYPE_NONE); if (status) { @@ -392,9 +378,8 @@ static int pcf857x_probe(struct i2c_client *client, if (status) goto fail; - gpiochip_set_nested_irqchip(&gpio->chip, &pcf857x_irq_chip, + gpiochip_set_nested_irqchip(&gpio->chip, &gpio->irqchip, client->irq); - gpio->irq_parent = client->irq; } /* Let platform code set up the GPIOs and their users. |