[-next] gpio: GPIO_SCH: depends on PCI same as LPC_SCH

Since LPC_SCH depends on PCI, GPIO_SCH must also depend on PCI
to prevent kconfig warning and build errors:

WARNING: unmet direct dependencies detected for LPC_SCH
  Depends on [n]: HAS_IOMEM [=y] && PCI [=n]
  Selected by [y]:
  - GPIO_SCH [=y] && GPIOLIB [=y] && X86 [=y] && (X86 [=y] || COMPILE_TEST [=n]) && ACPI [=y]

and

../drivers/mfd/lpc_sch.c:204:1: warning: data definition has no type or storage class
 module_pci_driver(lpc_sch_driver);
 ^~~~~~~~~~~~~~~~~
../drivers/mfd/lpc_sch.c:204:1: error: type defaults to ‘int’ in declaration of ‘module_pci_driver’ [-Werror=implicit-int]
../drivers/mfd/lpc_sch.c:204:1: warning: parameter names (without types) in function declaration
../drivers/mfd/lpc_sch.c:197:26: warning: ‘lpc_sch_driver’ defined but not used [-Wunused-variable]
 static struct pci_driver lpc_sch_driver = {
                          ^~~~~~~~~~~~~~

Fixes: 6c46215d6b62 ("gpio: sch: Hook into ACPI GPE handler to catch GPIO edge events")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Denis Turischev <denis@compulab.co.il>
---
 drivers/gpio/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

On 4/2/21 2:00 AM, Andy Shevchenko wrote:
> On Friday, April 2, 2021, Randy Dunlap <rdunlap@infradead.org> wrote:
> 
>> Since LPC_SCH depends on PCI, GPIO_SCH must also depend on PCI
>> to prevent kconfig warning and build errors:
>>
>> WARNING: unmet direct dependencies detected for LPC_SCH
>>   Depends on [n]: HAS_IOMEM [=y] && PCI [=n]
>>   Selected by [y]:
>>   - GPIO_SCH [=y] && GPIOLIB [=y] && X86 [=y] && (X86 [=y] || COMPILE_TEST
>> [=n]) && ACPI [=y]
>>
>> and
>>
>> ../drivers/mfd/lpc_sch.c:204:1: warning: data definition has no type or
>> storage class
>>  module_pci_driver(lpc_sch_driver);
>>  ^~~~~~~~~~~~~~~~~
>> ../drivers/mfd/lpc_sch.c:204:1: error: type defaults to ‘int’ in
>> declaration of ‘module_pci_driver’ [-Werror=implicit-int]
>> ../drivers/mfd/lpc_sch.c:204:1: warning: parameter names (without types)
>> in function declaration
>> ../drivers/mfd/lpc_sch.c:197:26: warning: ‘lpc_sch_driver’ defined but
>> not used [-Wunused-variable]
>>  static struct pci_driver lpc_sch_driver = {
>>                           ^~~~~~~~~~~~~~
>>
>>
> Thanks for catching this!
> But I am wondering if this actually should be fixed by switching to depends
> on LPC_SCH. What do you think?
> 

Sounds good to me. I'll send v2 like that.
Thanks.

> 
> 
>> Fixes: 6c46215d6b62 ("gpio: sch: Hook into ACPI GPE handler to catch GPIO
>> edge events")
>> Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
>> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
>> Cc: Linus Walleij <linus.walleij@linaro.org>
>> Cc: linux-gpio@vger.kernel.org
>> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
>> Cc: Denis Turischev <denis@compulab.co.il>
>> ---
>>  drivers/gpio/Kconfig |    2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> --- linux-next-20210401.orig/drivers/gpio/Kconfig
>> +++ linux-next-20210401/drivers/gpio/Kconfig
>> @@ -860,7 +860,7 @@ config GPIO_IT87
>>
>>  config GPIO_SCH
>>         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
>> -       depends on (X86 || COMPILE_TEST) && ACPI
>> +       depends on (X86 || COMPILE_TEST) && ACPI && PCI
>>         select GPIOLIB_IRQCHIP
>>         select MFD_CORE
>>         select LPC_SCH
>>
> 
>