From a362605b341d95e7209ead8052363cb28dda1c44 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 16 Oct 2012 19:43:53 +0200 Subject: [PATCH] gpio/tc3589x: convert to use the simple irqdomain The special checks for whether we have a base IRQ offset or not is surplus if we use the simple IRQ domain. The IRQ offset zero will be interpreted as a linear domain case. Plus this makes sure we allocate descriptors where need be, or warn if they are preallocated with SPARSE_IRQ. Cc: Grant Likely Cc: Rob Herring Cc: Lee Jones Signed-off-by: Linus Walleij --- drivers/gpio/gpio-tc3589x.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c index 1e48317e70fb..8c8447c7d2a8 100644 --- a/drivers/gpio/gpio-tc3589x.c +++ b/drivers/gpio/gpio-tc3589x.c @@ -292,17 +292,15 @@ static int tc3589x_gpio_irq_init(struct tc3589x_gpio *tc3589x_gpio, { int base = tc3589x_gpio->irq_base; - if (base) { - tc3589x_gpio->domain = irq_domain_add_legacy( - NULL, tc3589x_gpio->chip.ngpio, base, - 0, &tc3589x_irq_ops, tc3589x_gpio); - } - else { - tc3589x_gpio->domain = irq_domain_add_linear( - np, tc3589x_gpio->chip.ngpio, - &tc3589x_irq_ops, tc3589x_gpio); - } - + /* + * If this results in a linear domain, irq_create_mapping() will + * take care of allocating IRQ descriptors at runtime. When a base + * is provided, the IRQ descriptors will be allocated when the + * domain is instantiated. + */ + tc3589x_gpio->domain = irq_domain_add_simple(np, + tc3589x_gpio->chip.ngpio, base, &tc3589x_irq_ops, + tc3589x_gpio); if (!tc3589x_gpio->domain) { dev_err(tc3589x_gpio->dev, "Failed to create irqdomain\n"); return -ENOSYS; -- 2.30.2