[Bug] GPIO-Rcar: Driver does not work after Unbind-rebind.

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* [Bug] GPIO-Rcar: Driver does not work after Unbind-rebind.
@ 2014-08-01  7:14 カオ　ミン　ヒェップ
  2014-08-05  1:05 ` Laurent Pinchart
  0 siblings, 1 reply; 3+ messages in thread
From: カオ　ミン　ヒェップ @ 2014-08-01  7:14 UTC (permalink / raw)
  To: Laurent Pinchart, Magnus Damm, Simon Horman
  Cc: linux-gpio, Simon Horman, Kuninori Morimoto,
	S開12/森本さん, SH-Linux

Hello,

I tested gpio-rcar driver at Linux-upstream-v3.16-rc5 on Lager.
When I tried to unbind and then rebind the device, error messages occur. 
Then
gpio-rcar did not work and interrupt number did not count up any more.

The error messages is showed as below:
"irq 0, desc: ee005040, depth: 1, cou0
->handle_irq():  c005eea0, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05de7f8, 0xc05de7f8
->action():   (null)
    IRQ_NOPROBE set
  IRQ_NOREQUEST set
irq 0, desc: ee005040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005eea0, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05de7f8, 0xc05de7f8
->action():   (null)
    IRQ_NOPROBE set
  IRQ_NOREQUEST set"

Please see it and fix this bug.


Best regards,
JINSO/Cao Minh Hiep.


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [Bug] GPIO-Rcar: Driver does not work after Unbind-rebind.
  2014-08-01  7:14 [Bug] GPIO-Rcar: Driver does not work after Unbind-rebind カオ　ミン　ヒェップ
@ 2014-08-05  1:05 ` Laurent Pinchart
  2014-08-05  2:37   ` カオ　ミン　ヒェップ
  0 siblings, 1 reply; 3+ messages in thread
From: Laurent Pinchart @ 2014-08-05  1:05 UTC (permalink / raw)
  To: cm-hiep
  Cc: Magnus Damm, Simon Horman, linux-gpio, Simon Horman,
	Kuninori Morimoto, S開12/森本さん,
	SH-Linux

Hello,

On Friday 01 August 2014 16:14:27 カオ　ミン　ヒェップ wrote:
> Hello,
> 
> I tested gpio-rcar driver at Linux-upstream-v3.16-rc5 on Lager.
> When I tried to unbind and then rebind the device, error messages occur.
> Then gpio-rcar did not work and interrupt number did not count up any more.
> 
> The error messages is showed as below:
> "irq 0, desc: ee005040, depth: 1, cou0
> ->handle_irq():  c005eea0, handle_bad_irq+0x0/0x21c
> ->irq_data.chip(): c05de7f8, 0xc05de7f8
> ->action():   (null)
>     IRQ_NOPROBE set
>   IRQ_NOREQUEST set
> irq 0, desc: ee005040, depth: 1, count: 0, unhandled: 0
> ->handle_irq():  c005eea0, handle_bad_irq+0x0/0x21c
> ->irq_data.chip(): c05de7f8, 0xc05de7f8
> ->action():   (null)
>     IRQ_NOPROBE set
>   IRQ_NOREQUEST set"
> 
> Please see it and fix this bug.

Could you please detail the procedure to follow to reproduce the problem ?

-- 
Regards,

Laurent Pinchart


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [Bug] GPIO-Rcar: Driver does not work after Unbind-rebind.
  2014-08-05  1:05 ` Laurent Pinchart
@ 2014-08-05  2:37   ` カオ　ミン　ヒェップ
  0 siblings, 0 replies; 3+ messages in thread
From: カオ　ミン　ヒェップ @ 2014-08-05  2:37 UTC (permalink / raw)
  To: Laurent Pinchart
  Cc: Magnus Damm, Simon Horman, linux-gpio, Simon Horman,
	Kuninori Morimoto, S開12/森本さん,
	SH-Linux

[-- Attachment #1: Type: text/plain, Size: 1748 bytes --]

Hi Laurent
Thanks for your replying!

On 08/05/2014 10:05 AM, Laurent Pinchart wrote:
> Hello,
>
> On Friday 01 August 2014 16:14:27 カオ　ミン　ヒェップ wrote:
>> Hello,
>>
>> I tested gpio-rcar driver at Linux-upstream-v3.16-rc5 on Lager.
>> When I tried to unbind and then rebind the device, error messages occur.
>> Then gpio-rcar did not work and interrupt number did not count up any more.
>>
>> The error messages is showed as below:
>> "irq 0, desc: ee005040, depth: 1, cou0
>> ->handle_irq():  c005eea0, handle_bad_irq+0x0/0x21c
>> ->irq_data.chip(): c05de7f8, 0xc05de7f8
>> ->action():   (null)
>>      IRQ_NOPROBE set
>>    IRQ_NOREQUEST set
>> irq 0, desc: ee005040, depth: 1, count: 0, unhandled: 0
>> ->handle_irq():  c005eea0, handle_bad_irq+0x0/0x21c
>> ->irq_data.chip(): c05de7f8, 0xc05de7f8
>> ->action():   (null)
>>      IRQ_NOPROBE set
>>    IRQ_NOREQUEST set"
>>
>> Please see it and fix this bug.
> Could you please detail the procedure to follow to reproduce the problem ?
>
Below is the procedure to follow to reproduce the problem:

1. The first, confirms gpio device:
# cd /sys/bus/platform/drivers/gpio_rcar;find -type l
2. unbind the device:
# cd /sys/bus/platform/drivers/gpio_rcar; echo e6051000.gpio> unbind
3. Confirm unbind status:
#  cd /sys/bus/platform/drivers/gpio_rcar;  ls -d e6051000.gpio
4. rebind the device:
#  cd /sys/bus/platform/drivers/gpio_rcar; echo e6051000.gpio > bind
5. confirm bind status:
#  cd /sys/bus/platform/drivers/gpio_rcar;  ls -d e6051000.gpio
6.# cat /proc/interrupts | grep e6051000.gpio
7. Switch SW2 ON/OFF on the board to ensure that device works normally 
after rebinding.

I attached the detail log of two cases unbinding-rebinding e6051000.gpio 
and e6053000.gpio

[-- Attachment #2: e6051000.gpio_unbind-rebind_log.txt --]
[-- Type: text/plain, Size: 3404 bytes --]

# uname -a
Linux linaro-nano 3.16.0-rc5-00001-gf522b45 #1 SMP Tue Aug 5 10:25:16 JST 2014 armv7l armv7l armv7l GNU/Linux

# dmesg | grep gpio
gpio-regulator regulator@2: Could not obtain regulator setting GPIOs: -517
platform regulator@2: Driver gpio-regulator requests probe deferral
gpio-regulator regulator@4: Could not obtain regulator setting GPIOs: -517
platform regulator@4: Driver gpio-regulator requests probe deferral
gpio_rcar e6050000.gpio: Runtime PM disabled, clock forced on.
gpio_rcar e6050000.gpio: driving 32 GPIOs
gpio_rcar e6051000.gpio: Runtime PM disabled, clock forced on.
gpio_rcar e6051000.gpio: driving 32 GPIOs
gpio_rcar e6052000.gpio: Runtime PM disabled, clock forced on.
gpio_rcar e6052000.gpio: driving 32 GPIOs
gpio_rcar e6053000.gpio: Runtime PM disabled, clock forced on.
gpio_rcar e6053000.gpio: driving 32 GPIOs
gpio_rcar e6054000.gpio: Runtime PM disabled, clock forced on.
gpio_rcar e6054000.gpio: driving 32 GPIOs
gpio_rcar e6055000.gpio: Runtime PM disabled, clock forced on.
gpio_rcar e6055000.gpio: driving 32 GPIOs
input: gpio_keys as /devices/gpio_keys/input/input0

# cd /sys/bus/platform/drivers/gpio_rcar; ls -d e6051000.gpio
e6051000.gpio

# cd /sys/bus/platform/drivers/gpio_rcar; echo e6051000.gpio> unbind

root@linaro-nano:/sys/bus/platform/drivers/gpio_rcar# ls -d e6051000.gpio
ls: cannot access e6051000.gpio: No such file or directory

root@linaro-nano:/sys/bus/platform/drivers/gpio_rcar# ls /dev/input/event0                                   
ls: cannot access /dev/input/event0: No such file or directory

#  cd /sys/bus/platform/drivers/gpio_rcar; echo e6051000.gpio > bind
gpio_rcar e6051000.gpio: Runtime PM disabled, clock forced on.
gpio_rcar e6051000.gpio: driving 32 GPIOs
#  ls -d e6051000.gpio/drivers/gpio_rcar# cd /sys/bus/platform/drive 
e6051000.gpio

# cat /proc/interrupts | grep e6051000.gpio
 37:          0          0          0          0       GIC  37  e6051000.gpio
419:          0          0          0          0  e6051000.gpio  14  SW2-1
420:          0          0          0          0  e6051000.gpio  24  SW2-2
421:          0          0          0          0  e6051000.gpio  26  SW2-3
422:          0          0          0          0  e6051000.gpio  28  SW2-4


When switchs the SW2 ON/OFF, the error messages occur as below:

root@linaro-nano:/sys/bus/platform/drivers/gpio_rcar# irq 0, desc: eec05040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005fd0c, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05ec790, 0xc05ec790
->action():   (null)
   IRQ_NOPROBE set
 IRQ_NOREQUEST set
irq 0, desc: eec05040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005fd0c, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05ec790, 0xc05ec790
->action():   (null)
   IRQ_NOPROBE set
 IRQ_NOREQUEST set
irq 0, desc: eec05040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005fd0c, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05ec790, 0xc05ec790
->action():   (null)
   IRQ_NOPROBE set
 IRQ_NOREQUEST set
irq 0, desc: eec05040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005fd0c, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05ec790, 0xc05ec790
->action():   (null)
   IRQ_NOPROBE set
 IRQ_NOREQUEST set
irq 0, desc: eec05040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005fd0c, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05ec790, 0xc05ec790
->action():   (null)
   IRQ_NOPROBE set
 IRQ_NOREQUEST set


[-- Attachment #3: e6053000.gpio_unbind-rebind_log.txt --]
[-- Type: text/plain, Size: 2851 bytes --]

# uname -a
Linux linaro-nano 3.16.0-rc5-00001-gf522b45 #1 SMP Tue Aug 5 10:25:16 JST 2014 armv7l armv7l armv7l GNU/Linux
root@linaro-nano:~# cd /sys/bus/platform/drivers/gpio_rcar;find -type l
./e6051000.gpio
./e6053000.gpio
./e6055000.gpio
./e6050000.gpio
./e6052000.gpio
./e6054000.gpio
platform e6053000.gpio: Runtime PM disabled, clock forced off.

#echo e6053000.gpio> unbind

root@linaro-nano:/sys/bus/platform/drivers/gpio_rcar# ls -d e6053000.gpio
ls: cannot access e6053000.gpio: No such file or directory

#echo e6053000.gpio > bind
gpio_rcar e6053000.gpio: Runtime PM disabled, clock forced on.
gpio_rcar e6053000.gpio: driving 32 GPIOs

root@linaro-nano:/sys/bus/platform/drivers/gpio_rcar# ls -d e6053000.gpio
e6053000.gpio

root@linaro-nano:~# cat /proc/interrupts | grep e6053000.gpio
 39:          0          0          0          0       GIC  39  e6053000.gpio


When Insert/remove mSD into/from SD0 and SD2 slot, the error messages occur as below:

root@linaro-nano:~# irq 0, desc: eec05040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005fd0c, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05ec790, 0xc05ec790
->action():   (null)
   IRQ_NOPROBE set
 IRQ_NOREQUEST set
irq 0, desc: eec05040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005fd0c, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05ec790, 0xc05ec790
->action():   (null)
   IRQ_NOPROBE set
 IRQ_NOREQUEST set
irq 0, desc: eec05040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005fd0c, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05ec790, 0xc05ec790
->action():   (null)
   IRQ_NOPROBE set
 IRQ_NOREQUEST set
irq 0, desc: eec05040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005fd0c, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05ec790, 0xc05ec790
->action():   (null)
   IRQ_NOPROBE set
 IRQ_NOREQUEST set
irq 0, desc: eec05040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005fd0c, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05ec790, 0xc05ec790
->action():   (null)
   IRQ_NOPROBE set
 IRQ_NOREQUEST set
irq 0, desc: eec05040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005fd0c, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05ec790, 0xc05ec790
->action():   (null)
   IRQ_NOPROBE set
 IRQ_NOREQUEST set
irq 0, desc: eec05040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005fd0c, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05ec790, 0xc05ec790
->action():   (null)
   IRQ_NOPROBE set
 IRQ_NOREQUEST set
irq 0, desc: eec05040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005fd0c, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05ec790, 0xc05ec790
->action():   (null)
   IRQ_NOPROBE set
 IRQ_NOREQUEST set
irq 0, desc: eec05040, depth: 1, count: 0, unhandled: 0
->handle_irq():  c005fd0c, handle_bad_irq+0x0/0x21c
->irq_data.chip(): c05ec790, 0xc05ec790
->action():   (null)
   IRQ_NOPROBE set
 IRQ_NOREQUEST set


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2014-08-05  2:37 UTC | newest]

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2014-08-01  7:14 [Bug] GPIO-Rcar: Driver does not work after Unbind-rebind カオ　ミン　ヒェップ
2014-08-05  1:05 ` Laurent Pinchart
2014-08-05  2:37   ` カオ　ミン　ヒェップ

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