linux-kernel - Re: [PATCH 1/5] gpio: export acpi_gpiochip_request

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Date:   Wed, 4 Dec 2019 14:39:45 +0100 (CET)
From:   Clément Leger <cleger@...ray.eu>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        "open list, GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH 1/5] gpio: export acpi_gpiochip_request_interrupts in
 gpio/driver.h

Ok, should I fix the original driver first and then submit the serie to add pinctrl ?

----- On 4 Dec, 2019, at 13:35, Andy Shevchenko andy.shevchenko@...il.com wrote:

> On Wed, Dec 4, 2019 at 12:13 PM Clement Leger <cleger@...ray.eu> wrote:
>>
>> dwapb-gpio driver which uses this function will be moved to pinctrl for
>> pinctrl support. Export this function in gpio/driver.h to allow using
>> it.
>>
> 
> I don't think this is proper way to do it.
> The driver has to register IRQ chip and GPIO core will take care of
> ACPI related stuff.
> 
>> Signed-off-by: Clement Leger <cleger@...ray.eu>
>> ---
>>  drivers/gpio/gpiolib-acpi.h |  4 ----
>>  include/linux/gpio/driver.h | 12 ++++++++++++
>>  2 files changed, 12 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/gpio/gpiolib-acpi.h b/drivers/gpio/gpiolib-acpi.h
>> index 1c6d65cf0629..ba2f187babe3 100644
>> --- a/drivers/gpio/gpiolib-acpi.h
>> +++ b/drivers/gpio/gpiolib-acpi.h
>> @@ -34,7 +34,6 @@ struct acpi_gpio_info {
>>  void acpi_gpiochip_add(struct gpio_chip *chip);
>>  void acpi_gpiochip_remove(struct gpio_chip *chip);
>>
>> -void acpi_gpiochip_request_interrupts(struct gpio_chip *chip);
>>  void acpi_gpiochip_free_interrupts(struct gpio_chip *chip);
>>
>>  int acpi_gpio_update_gpiod_flags(enum gpiod_flags *flags,
>> @@ -56,9 +55,6 @@ int acpi_gpio_count(struct device *dev, const char *con_id);
>>  static inline void acpi_gpiochip_add(struct gpio_chip *chip) { }
>>  static inline void acpi_gpiochip_remove(struct gpio_chip *chip) { }
>>
>> -static inline void
>> -acpi_gpiochip_request_interrupts(struct gpio_chip *chip) { }
>> -
>>  static inline void
>>  acpi_gpiochip_free_interrupts(struct gpio_chip *chip) { }
>>
>> diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
>> index e2480ef94c55..40b9f13d77e1 100644
>> --- a/include/linux/gpio/driver.h
>> +++ b/include/linux/gpio/driver.h
>> @@ -733,6 +733,18 @@ void gpiochip_unlock_as_irq(struct gpio_chip *chip,
>> unsigned int offset);
>>
>>  struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc);
>>
>> +
>> +#ifdef CONFIG_GPIO_ACPI
>> +
>> +void acpi_gpiochip_request_interrupts(struct gpio_chip *chip);
>> +
>> +#else
>> +
>> +static inline void acpi_gpiochip_request_interrupts(struct gpio_chip *chip)
>> +{
>> +}
>> +
>> +#endif /* CONFIG_GPIO_ACPI */
>>  #else /* CONFIG_GPIOLIB */
>>
>>  static inline struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc)
>> --
>> 2.15.0.276.g89ea799
>>
> 
> 
> --
> With Best Regards,
> Andy Shevchenko