gpio: max732x: Use irqchip template

This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit calls to gpiochip_irqchip_add_nested() and
gpiochip_set_nested_irqchip(). The irqchip is instead
added while adding the gpiochip.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Cc: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20200726221259.133536-1-linus.walleij@linaro.org

diff --git a/drivers/gpio/gpio-max732x.c b/drivers/gpio/gpio-max732x.c
index 63472f3..238cbe9 100644 (file)
--- a/drivers/gpio/gpio-max732x.c
+++ b/drivers/gpio/gpio-max732x.c
@@ -503,6 +503,8 @@ static int max732x_irq_setup(struct max732x_chip *chip,
 
        if (((pdata && pdata->irq_base) || client->irq)
                        && has_irq != INT_NONE) {
+               struct gpio_irq_chip *girq;
+
                if (pdata)
                        irq_base = pdata->irq_base;
                chip->irq_features = has_irq;
@@ -517,19 +519,17 @@ static int max732x_irq_setup(struct max732x_chip *chip,
                                client->irq);
                        return ret;
                }
-               ret =  gpiochip_irqchip_add_nested(&chip->gpio_chip,
-                                                  &max732x_irq_chip,
-                                                  irq_base,
-                                                  handle_simple_irq,
-                                                  IRQ_TYPE_NONE);
-               if (ret) {
-                       dev_err(&client->dev,
-                               "could not connect irqchip to gpiochip\n");
-                       return ret;
-               }
-               gpiochip_set_nested_irqchip(&chip->gpio_chip,
-                                           &max732x_irq_chip,
-                                           client->irq);
+
+               girq = &chip->gpio_chip.irq;
+               girq->chip = &max732x_irq_chip;
+               /* This will let us handle the parent IRQ in the driver */
+               girq->parent_handler = NULL;
+               girq->num_parents = 0;
+               girq->parents = NULL;
+               girq->default_type = IRQ_TYPE_NONE;
+               girq->handler = handle_simple_irq;
+               girq->threaded = true;
+               girq->first = irq_base; /* FIXME: get rid of this */
        }
 
        return 0;
@@ -695,11 +695,11 @@ static int max732x_probe(struct i2c_client *client,
                        return ret;
        }
 
-       ret = devm_gpiochip_add_data(&client->dev, &chip->gpio_chip, chip);
+       ret = max732x_irq_setup(chip, id);
        if (ret)
                return ret;
 
-       ret = max732x_irq_setup(chip, id);
+       ret = devm_gpiochip_add_data(&client->dev, &chip->gpio_chip, chip);
        if (ret)
                return ret;