mfd/ab8500-core: use irq_domain_add_simple()

To be able to use SPARSE_IRQ while yet not using device tree,
we need to use irq_domain_add_simple() that will allocate
descriptors for the IRQs in the non-DT case, and fall back
to using the linear irqdomain in the DT case.

Cc: Lee Jones <lee.jones@linaro.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 4 insertions, 9 deletions

diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 1667c77b5cde..547fff4901ea 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -565,15 +565,10 @@ static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np)
         else
                 num_irqs = AB8500_NR_IRQS;
 
-        if (ab8500->irq_base) {
-                ab8500->domain = irq_domain_add_legacy(
-                        NULL, num_irqs, ab8500->irq_base,
-                        0, &ab8500_irq_ops, ab8500);
-        }
-        else {
-                ab8500->domain = irq_domain_add_linear(
-                        np, num_irqs, &ab8500_irq_ops, ab8500);
-        }
+        /* If ->irq_base is zero this will give a linear mapping */
+        ab8500->domain = irq_domain_add_simple(NULL,
+                        num_irqs, ab8500->irq_base,
+                        &ab8500_irq_ops, ab8500);
 
         if (!ab8500->domain) {
                 dev_err(ab8500->dev, "Failed to create irqdomain\n");