Re: [1/2] ARM: irqchip: stm32: Optimizes and cleans up stm32-exti irq_domain

2018-02-23 Thread Radosław Pietrzyk
Hi Ludovic,
Please check latest v2 patches series and let me know if it works on
stm32h7 as it does on stm32f4

2018-02-22 12:01 GMT+01:00 Radosław Pietrzyk :
> Hi Ludovic,
> I have tested on stm32f429-disco and it works without a problem.
> handle_edge_irq is not used in current implementation because it is
> substituted by handle_simple_irq in an alloc callback either way which
> causes that irq_ack callback is not invoked as well (acking is done in
> chained handler).
>
> 2018-02-22 11:55 GMT+01:00 Ludovic BARRE :
>> Hi Radek
>>
>> I've tested your change on stm32h743i-eval.dts board
>> and gpio-keys tests are not functional.
>> No interrupt occurs when we push or release button
>> (cat /proc/interrupt).
>>
>> Board: stm32h743i-eval.dts
>> Test description: gpio-keys (gpioc 13 => exti 13), with gpio or interrupt
>> property.
>>
>> comment below
>>
>>
>> On 02/21/2018 02:50 PM, radek wrote:
>>>
>>> - 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 
>>> ---
>>>   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, >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);
>>
>>
>> EXTI hardware block is trigged on pulse event rising or failing edge.
>> Why do you change to handle_simple_irq ?
>>
>>> 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 */
>>>
>>
>> BR
>> Ludo


Re: [1/2] ARM: irqchip: stm32: Optimizes and cleans up stm32-exti irq_domain

2018-02-23 Thread Radosław Pietrzyk
Hi Ludovic,
Please check latest v2 patches series and let me know if it works on
stm32h7 as it does on stm32f4

2018-02-22 12:01 GMT+01:00 Radosław Pietrzyk :
> Hi Ludovic,
> I have tested on stm32f429-disco and it works without a problem.
> handle_edge_irq is not used in current implementation because it is
> substituted by handle_simple_irq in an alloc callback either way which
> causes that irq_ack callback is not invoked as well (acking is done in
> chained handler).
>
> 2018-02-22 11:55 GMT+01:00 Ludovic BARRE :
>> Hi Radek
>>
>> I've tested your change on stm32h743i-eval.dts board
>> and gpio-keys tests are not functional.
>> No interrupt occurs when we push or release button
>> (cat /proc/interrupt).
>>
>> Board: stm32h743i-eval.dts
>> Test description: gpio-keys (gpioc 13 => exti 13), with gpio or interrupt
>> property.
>>
>> comment below
>>
>>
>> On 02/21/2018 02:50 PM, radek wrote:
>>>
>>> - 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 
>>> ---
>>>   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, >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);
>>
>>
>> EXTI hardware block is trigged on pulse event rising or failing edge.
>> Why do you change to handle_simple_irq ?
>>
>>> 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 */
>>>
>>
>> BR
>> Ludo


Re: [1/2] ARM: irqchip: stm32: Optimizes and cleans up stm32-exti irq_domain

2018-02-22 Thread Radosław Pietrzyk
Hi Ludovic,
I have tested on stm32f429-disco and it works without a problem.
handle_edge_irq is not used in current implementation because it is
substituted by handle_simple_irq in an alloc callback either way which
causes that irq_ack callback is not invoked as well (acking is done in
chained handler).

2018-02-22 11:55 GMT+01:00 Ludovic BARRE :
> Hi Radek
>
> I've tested your change on stm32h743i-eval.dts board
> and gpio-keys tests are not functional.
> No interrupt occurs when we push or release button
> (cat /proc/interrupt).
>
> Board: stm32h743i-eval.dts
> Test description: gpio-keys (gpioc 13 => exti 13), with gpio or interrupt
> property.
>
> comment below
>
>
> On 02/21/2018 02:50 PM, radek wrote:
>>
>> - 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 
>> ---
>>   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, >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);
>
>
> EXTI hardware block is trigged on pulse event rising or failing edge.
> Why do you change to handle_simple_irq ?
>
>> 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 */
>>
>
> BR
> Ludo


Re: [1/2] ARM: irqchip: stm32: Optimizes and cleans up stm32-exti irq_domain

2018-02-22 Thread Radosław Pietrzyk
Hi Ludovic,
I have tested on stm32f429-disco and it works without a problem.
handle_edge_irq is not used in current implementation because it is
substituted by handle_simple_irq in an alloc callback either way which
causes that irq_ack callback is not invoked as well (acking is done in
chained handler).

2018-02-22 11:55 GMT+01:00 Ludovic BARRE :
> Hi Radek
>
> I've tested your change on stm32h743i-eval.dts board
> and gpio-keys tests are not functional.
> No interrupt occurs when we push or release button
> (cat /proc/interrupt).
>
> Board: stm32h743i-eval.dts
> Test description: gpio-keys (gpioc 13 => exti 13), with gpio or interrupt
> property.
>
> comment below
>
>
> On 02/21/2018 02:50 PM, radek wrote:
>>
>> - 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 
>> ---
>>   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, >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);
>
>
> EXTI hardware block is trigged on pulse event rising or failing edge.
> Why do you change to handle_simple_irq ?
>
>> 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 */
>>
>
> BR
> Ludo


Re: [1/2] ARM: irqchip: stm32: Optimizes and cleans up stm32-exti irq_domain

2018-02-22 Thread Ludovic BARRE

Hi Radek

I've tested your change on stm32h743i-eval.dts board
and gpio-keys tests are not functional.
No interrupt occurs when we push or release button
(cat /proc/interrupt).

Board: stm32h743i-eval.dts
Test description: gpio-keys (gpioc 13 => exti 13), with gpio or 
interrupt property.


comment below

On 02/21/2018 02:50 PM, radek wrote:

- 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 
---
  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, >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);


EXTI hardware block is trigged on pulse event rising or failing edge.
Why do you change to handle_simple_irq ?


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 */




BR
Ludo


Re: [1/2] ARM: irqchip: stm32: Optimizes and cleans up stm32-exti irq_domain

2018-02-22 Thread Ludovic BARRE

Hi Radek

I've tested your change on stm32h743i-eval.dts board
and gpio-keys tests are not functional.
No interrupt occurs when we push or release button
(cat /proc/interrupt).

Board: stm32h743i-eval.dts
Test description: gpio-keys (gpioc 13 => exti 13), with gpio or 
interrupt property.


comment below

On 02/21/2018 02:50 PM, radek wrote:

- 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 
---
  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, >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);


EXTI hardware block is trigged on pulse event rising or failing edge.
Why do you change to handle_simple_irq ?


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 */




BR
Ludo