- allocates generic chip with handle_simple_irq
	which simplifies irq_domain_ops.alloc callback
	- removes ack register from generic chip which is not used for
	handle_simple_irq as acking is done in a chained handler
	- removes unneeded irq_domain_ops.xlate callback

Signed-off-by: Radoslaw Pietrzyk <redacted>
---
  drivers/irqchip/irq-stm32-exti.c | 10 +---------
  1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c
index 36f0fbe..42e74e3 100644
--- a/drivers/irqchip/irq-stm32-exti.c
+++ b/drivers/irqchip/irq-stm32-exti.c

@@ -176,16 +176,12 @@ static int stm32_irq_set_wake(struct irq_data *data, unsigned int on)
  static int stm32_exti_alloc(struct irq_domain *d, unsigned int virq,
  			    unsigned int nr_irqs, void *data)
  {
-	struct irq_chip_generic *gc;
  	struct irq_fwspec *fwspec = data;
  	irq_hw_number_t hwirq;
  
  	hwirq = fwspec->param[0];
-	gc = irq_get_domain_generic_chip(d, hwirq);
  
  	irq_map_generic_chip(d, virq, hwirq);
-	irq_domain_set_info(d, virq, hwirq, &gc->chip_types->chip, gc,
-			    handle_simple_irq, NULL, NULL);
  
  	return 0;
  }

@@ -200,7 +196,6 @@ static void stm32_exti_free(struct irq_domain *d, unsigned int virq,
  
  struct irq_domain_ops irq_exti_domain_ops = {
  	.map	= irq_map_generic_chip,
-	.xlate	= irq_domain_xlate_onetwocell,
  	.alloc  = stm32_exti_alloc,
  	.free	= stm32_exti_free,
  };

@@ -231,7 +226,7 @@ __init stm32_exti_init(const struct stm32_exti_bank **stm32_exti_banks,
  	}
  
  	ret = irq_alloc_domain_generic_chips(domain, IRQS_PER_BANK, 1, "exti",
-					     handle_edge_irq, clr, 0, 0);
+					     handle_simple_irq, clr, 0, 0);

  	if (ret) {
  		pr_err("%pOF: Could not allocate generic interrupt chip.\n",
  			node);

@@ -246,13 +241,10 @@ __init stm32_exti_init(const struct stm32_exti_bank **stm32_exti_banks,
  
  		gc->reg_base = base;
  		gc->chip_types->type = IRQ_TYPE_EDGE_BOTH;
-		gc->chip_types->chip.irq_ack = irq_gc_ack_set_bit;
  		gc->chip_types->chip.irq_mask = irq_gc_mask_clr_bit;
  		gc->chip_types->chip.irq_unmask = irq_gc_mask_set_bit;
  		gc->chip_types->chip.irq_set_type = stm32_irq_set_type;
  		gc->chip_types->chip.irq_set_wake = stm32_irq_set_wake;
-		gc->chip_types->regs.ack = stm32_bank->pr_ofst;
-		gc->chip_types->regs.mask = stm32_bank->imr_ofst;
  		gc->private = (void *)stm32_bank;
  
  		/* Determine number of irqs supported */