hi Radosław
On 02/23/2018 06:37 PM, Radosław Pietrzyk wrote:
I don't fully get it to be honest. If interrupt is pending it must
have been enabled (unmasked) and requires to be handled acked. It will
be acked by irq_chip.irq_ack handler within the edge handler.
Therefore this additional acking is meaningless.
Sorry, I did not see modification in pinctrl-stm32.c.
So it's ok for me
Acked-by: Ludovic Barre <ludovic.barre@xxxxxx>
Tested-by: Ludovic Barre <ludovic.barre@xxxxxx>
BR
Ludo
2018-02-23 16:46 GMT+01:00 Ludovic BARRE <ludovic.barre@xxxxxx>:
hi Radoslaw
The gpio-keys tests it's now functional on H7, great.
However the gpio-key test only the bank1 (like stm32f429).
Like the H7 introduce the multi-bank management,
we must perform complementary test.
comment below about ack in handler
On 02/23/2018 09:31 AM, Radoslaw Pietrzyk wrote:
- discards setting handle_simple_irq handler for hierarchy interrupts
- 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
Signed-off-by: Radoslaw Pietrzyk <radoslaw.pietrzyk@xxxxxxxxx>
---
drivers/irqchip/irq-stm32-exti.c | 13 -------------
1 file changed, 13 deletions(-)
diff --git a/drivers/irqchip/irq-stm32-exti.c
b/drivers/irqchip/irq-stm32-exti.c
index 36f0fbe..8013a87 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));
the while loop " while ((pending = " has been introduce while original
upstream of this driver in V2 to V3
https://patchwork.ozlabs.org/patch/604190/
https://patchwork.ozlabs.org/patch/665242/
the "ack" is needed to acknowledge the irq which are handled and which is
not the original irq for which we enter.
}
}
}
@@ -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);
I see if it is not disturb the multi-bank.
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,
};
BR
Ludo
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