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gpio: Initialize the irqchip valid_mask with a callback

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After changing the valid_mask for the struct gpio_chip
to detect the need and presence of a valid mask with the
presence of a .init_valid_mask() callback to fill it in,
we augment the gpio_irq_chip to use the same logic.

Switch all driver using the gpio_irq_chio valid_mask
over to this new method.

This makes sure the valid_mask for the gpio_irq_chip gets
filled in when we add the gpio_chip, which makes it a
little easier to switch over drivers using the old
way of setting up gpio_irq_chip over to the new method
of passing the gpio_irq_chip along with the gpio_chip.
(See drivers/gpio/TODO for details.)

Cc: Joel Stanley <joel@jms.id.au>
Cc: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Link: https://lore.kernel.org/r/20190904140104.32426-1-linus.walleij@linaro.org
This commit is contained in:
Linus Walleij
2019-09-04 16:01:04 +02:00
parent 4f78d91c72
commit 5fbe5b5883
8 changed files with 111 additions and 54 deletions
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13
drivers/gpio/gpio-aspeed.c
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@@ -689,8 +689,11 @@ static struct irq_chip aspeed_gpio_irqchip = {
.irq_set_type = aspeed_gpio_set_type,
};
static void set_irq_valid_mask(struct aspeed_gpio *gpio)
static void aspeed_init_irq_valid_mask(struct gpio_chip *gc,
unsigned long *valid_mask,
unsigned int ngpios)
{
struct aspeed_gpio *gpio = gpiochip_get_data(gc);
const struct aspeed_bank_props *props = gpio->config->props;
while (!is_bank_props_sentinel(props)) {
@@ -704,7 +707,7 @@ static void set_irq_valid_mask(struct aspeed_gpio *gpio)
if (i >= gpio->config->nr_gpios)
break;
clear_bit(i, gpio->chip.irq.valid_mask);
clear_bit(i, valid_mask);
}
props++;
@@ -1203,7 +1206,7 @@ static int __init aspeed_gpio_probe(struct platform_device *pdev)
girq->parents[0] = gpio->irq;
girq->default_type = IRQ_TYPE_NONE;
girq->handler = handle_bad_irq;
girq->need_valid_mask = true;
girq->init_valid_mask = aspeed_init_irq_valid_mask;
}
gpio->offset_timer =
@@ -1215,10 +1218,6 @@ static int __init aspeed_gpio_probe(struct platform_device *pdev)
if (rc < 0)
return rc;
/* Now the valid mask is allocated */
if (gpio->irq)
set_irq_valid_mask(gpio);
return 0;
}