Re: [PATCH 2/4] gpio: davinci: Handle the return value of davinci_gpio_irq_setup function

From	Keerthy <j-keerthy@ti.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 2/4] gpio: davinci: Handle the return value of davinci_gpio_irq_setup function
Date	2017-07-20 12:20 +0200
Message-ID	<u5gIO-5VF-35@gated-at.bofh.it> (permalink)
References	(3 earlier) <u5drz-3uU-5@gated-at.bofh.it> <u5fMJ-5hG-7@gated-at.bofh.it> <u5gpr-5yL-5@gated-at.bofh.it> <u5gz7-5RF-1@gated-at.bofh.it> <u5gz9-5RF-25@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Thursday 20 July 2017 03:35 PM, Johan Hovold wrote:
> On Thu, Jul 20, 2017 at 03:32:27PM +0530, Keerthy wrote:
>> On Thursday 20 July 2017 03:20 PM, Johan Hovold wrote:
>>> On Thu, Jul 20, 2017 at 02:40:37PM +0530, Keerthy wrote:
>>>> On Thursday 20 July 2017 12:14 PM, Keerthy wrote:
>>>>> On Wednesday 19 July 2017 04:40 PM, Johan Hovold wrote:
> 
>>>>>> There's a separate but related bug here too as the clk_prepare_enable()
>>>>>> in davinci_gpio_irq_setup() is never balanced on driver unbind.
>>>>>
>>>>> Yes Johan. I will send that as a separate patch.
>>>>
>>>> This is already fixed in the latest kernel:
>>>>
>>>> commit 6dc0048cff988858254fcc26becfc1e9753efa79
>>>> Author: Arvind Yadav <arvind.yadav.cs@gmail.com>
>>>> Date:   Tue May 23 14:48:57 2017 +0530
>>>
>>> That change only handles errors in davinci_gpio_irq_setup() (i.e. during
>>> probe) and not the imbalance at driver unbind that I was referring to.
>>
>> Okay got it. One more clk_unprepare_disable() call needs to be there in
>> probe err path.
> 
> No, you need to balance it on driver unbind, that is, in a new remove()
> callback.

Okay yes davinci_gpio_irq_setup is the last call in probe so no need of
that in probe error path. I will add a new remove() to balance.

Thanks,
Keerthy

> 
> Johan
>

Thread

[PATCH 0/4] gpio: davinci: Add keystone-k2g support and few clean ups Keerthy <j-keerthy@ti.com> - 2017-07-18 13:00 +0200
  [PATCH 4/4] ARM: dts: keystone-k2g-evm: Add gpio nodes Keerthy <j-keerthy@ti.com> - 2017-07-18 13:00 +0200
    Re: [PATCH 4/4] ARM: dts: keystone-k2g-evm: Add gpio nodes Suman Anna <s-anna@ti.com> - 2017-07-18 21:20 +0200
      Re: [PATCH 4/4] ARM: dts: keystone-k2g-evm: Add gpio nodes Keerthy <j-keerthy@ti.com> - 2017-07-19 06:10 +0200
  [PATCH 1/4] gpio: davinci: Use devm_gpiochip_add_data in place of gpiochip_add_data Keerthy <j-keerthy@ti.com> - 2017-07-18 13:00 +0200
    Re: [PATCH 1/4] gpio: davinci: Use devm_gpiochip_add_data in place of  gpiochip_add_data Suman Anna <s-anna@ti.com> - 2017-07-18 19:00 +0200
      Re: [PATCH 1/4] gpio: davinci: Use devm_gpiochip_add_data in place of  gpiochip_add_data Keerthy <j-keerthy@ti.com> - 2017-07-18 19:50 +0200
    Re: [PATCH 1/4] gpio: davinci: Use devm_gpiochip_add_data in place  of gpiochip_add_data Johan Hovold <johan@kernel.org> - 2017-07-19 11:40 +0200
      Re: [PATCH 1/4] gpio: davinci: Use devm_gpiochip_add_data in place of  gpiochip_add_data Keerthy <j-keerthy@ti.com> - 2017-07-19 12:00 +0200
  [PATCH 2/4] gpio: davinci: Handle the return value of davinci_gpio_irq_setup function Keerthy <j-keerthy@ti.com> - 2017-07-18 13:00 +0200
    Re: [PATCH 2/4] gpio: davinci: Handle the return value of  davinci_gpio_irq_setup function Suman Anna <s-anna@ti.com> - 2017-07-18 19:00 +0200
      Re: [PATCH 2/4] gpio: davinci: Handle the return value of  davinci_gpio_irq_setup function Keerthy <j-keerthy@ti.com> - 2017-07-18 19:50 +0200
    Re: [PATCH 2/4] gpio: davinci: Handle the return value of  davinci_gpio_irq_setup function Johan Hovold <johan@kernel.org> - 2017-07-19 13:20 +0200
      Re: [PATCH 2/4] gpio: davinci: Handle the return value of  davinci_gpio_irq_setup function Keerthy <j-keerthy@ti.com> - 2017-07-20 08:50 +0200
        Re: [PATCH 2/4] gpio: davinci: Handle the return value of  davinci_gpio_irq_setup function Keerthy <j-keerthy@ti.com> - 2017-07-20 11:20 +0200
          Re: [PATCH 2/4] gpio: davinci: Handle the return value of  davinci_gpio_irq_setup function Johan Hovold <johan@kernel.org> - 2017-07-20 12:00 +0200
            Re: [PATCH 2/4] gpio: davinci: Handle the return value of  davinci_gpio_irq_setup function Keerthy <j-keerthy@ti.com> - 2017-07-20 12:10 +0200
              Re: [PATCH 2/4] gpio: davinci: Handle the return value of  davinci_gpio_irq_setup function Johan Hovold <johan@kernel.org> - 2017-07-20 12:10 +0200
                Re: [PATCH 2/4] gpio: davinci: Handle the return value of  davinci_gpio_irq_setup function Keerthy <j-keerthy@ti.com> - 2017-07-20 12:20 +0200
                Re: [PATCH 2/4] gpio: davinci: Handle the return value of  davinci_gpio_irq_setup function Grygorii Strashko <grygorii.strashko@ti.com> - 2017-07-20 23:40 +0200
                Re: [PATCH 2/4] gpio: davinci: Handle the return value of  davinci_gpio_irq_setup function Keerthy <j-keerthy@ti.com> - 2017-07-21 06:00 +0200
                Re: [PATCH 2/4] gpio: davinci: Handle the return value of  davinci_gpio_irq_setup function Johan Hovold <johan@kernel.org> - 2017-07-21 09:50 +0200
  [PATCH 3/4] gpio: davinci: Add a separate compatible for keystone-k2g soc Keerthy <j-keerthy@ti.com> - 2017-07-18 13:10 +0200
    Re: [PATCH 3/4] gpio: davinci: Add a separate compatible for  keystone-k2g soc Sekhar Nori <nsekhar@ti.com> - 2017-07-18 13:40 +0200
      Re: [PATCH 3/4] gpio: davinci: Add a separate compatible for  keystone-k2g soc Keerthy <j-keerthy@ti.com> - 2017-07-18 19:50 +0200
    Re: [PATCH 3/4] gpio: davinci: Add a separate compatible for  keystone-k2g soc Rob Herring <robh@kernel.org> - 2017-07-24 20:30 +0200
      Re: [PATCH 3/4] gpio: davinci: Add a separate compatible for  keystone-k2g soc Keerthy <j-keerthy@ti.com> - 2017-07-25 05:30 +0200

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