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| author | Radoslaw Pietrzyk <radoslaw.pietrzyk@gmail.com> | 2018-04-26 19:18:24 +0300 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2018-05-24 14:37:54 +0300 |
| commit | ff78716d431726ceda50300b8c1b982e00acf6ab (patch) | |
| tree | 29a445fb7c4e3aba7165b04ffae771fe7bf8845f /drivers/irqchip/irq-stm32-exti.c | |
| parent | 868c4e07533c67f7b6525a4561d8f59dbfdd5e06 (diff) | |
| download | linux-ff78716d431726ceda50300b8c1b982e00acf6ab.tar.xz | |
irqchip/stm32: Optimizes and cleans up stm32-exti irq_domain
- In stm32_exti_alloc function, discards irq_domain_set_info
with handle_simple_irq. This overwrite the setting defined while init
of generic chips. Exti controller manages edge irq type.
- Removes acking in chained irq handler as this is done by
irq_chip itself inside handle_edge_irq
- removes unneeded irq_domain_ops.xlate callback
Acked-by: Ludovic Barre <ludovic.barre@st.com>
Tested-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Radoslaw Pietrzyk <radoslaw.pietrzyk@gmail.com>
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'drivers/irqchip/irq-stm32-exti.c')
| -rw-r--r-- | drivers/irqchip/irq-stm32-exti.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c index 36f0fbe36c35..8013a87179da 100644 --- a/drivers/irqchip/irq-stm32-exti.c +++ b/drivers/irqchip/irq-stm32-exti.c @@ -79,13 +79,6 @@ static unsigned long stm32_exti_pending(struct irq_chip_generic *gc) return irq_reg_readl(gc, stm32_bank->pr_ofst); } -static void stm32_exti_irq_ack(struct irq_chip_generic *gc, u32 mask) -{ - const struct stm32_exti_bank *stm32_bank = gc->private; - - irq_reg_writel(gc, mask, stm32_bank->pr_ofst); -} - static void stm32_irq_handler(struct irq_desc *desc) { struct irq_domain *domain = irq_desc_get_handler_data(desc); @@ -106,7 +99,6 @@ static void stm32_irq_handler(struct irq_desc *desc) for_each_set_bit(n, &pending, IRQS_PER_BANK) { virq = irq_find_mapping(domain, irq_base + n); generic_handle_irq(virq); - stm32_exti_irq_ack(gc, BIT(n)); } } } @@ -176,16 +168,12 @@ 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 +188,6 @@ 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, }; |