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gpio: Move irq_chained_parent to struct gpio_irq_chip

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In order to consolidate the multiple ways to associate an IRQ chip with
a GPIO chip, move more fields into the new struct gpio_irq_chip.

Signed-off-by: Thierry Reding <[email protected]>
Acked-by: Grygorii Strashko <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
This commit is contained in:
Thierry Reding 2017-11-07 19:15:50 +01:00 • committed by Linus Walleij
commit 39e5f09695
2 changed files with 27 additions and 9 deletions
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17
drivers/gpio/gpiolib.c
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@ -1570,7 +1570,8 @@ static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gpiochip,
irq_set_chained_handler_and_data(parent_irq, parent_handler,
gpiochip);
gpiochip->irq_chained_parent = parent_irq;
gpiochip->irq.parents = &parent_irq;
gpiochip->irq.num_parents = 1;
}
/* Set the parent IRQ for all affected IRQs */
@ -1719,17 +1720,23 @@ static int gpiochip_to_irq(struct gpio_chip *chip, unsigned offset)
*/
static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip)
{
unsigned int offset, irq;
unsigned int offset;
acpi_gpiochip_free_interrupts(gpiochip);
if (gpiochip->irq_chained_parent) {
irq_set_chained_handler_and_data(
gpiochip->irq_chained_parent, NULL, NULL);
if (gpiochip->irq.num_parents > 0) {
struct gpio_irq_chip *irq = &gpiochip->irq;
unsigned int i;
for (i = 0; i < irq->num_parents; i++)
irq_set_chained_handler_and_data(irq->parents[i],
NULL, NULL);
}
/* Remove all IRQ mappings and delete the domain */
if (gpiochip->irq.domain) {
unsigned int irq;
for (offset = 0; offset < gpiochip->ngpio; offset++) {
if (!gpiochip_irqchip_irq_valid(gpiochip, offset))
continue;