gpio: max77620: Add missing dependency on GPIOLIB_IRQCHIP

Driver fails to compile in a minimized kernel's configuration because of
the missing dependency on GPIOLIB_IRQCHIP.

 error: ‘struct gpio_chip’ has no member named ‘irq’
   44 |   virq = irq_find_mapping(gpio->gpio_chip.irq.domain, offset);

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200106015154.12040-1-digetx@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 6ab25fe..2ed5992 100644 (file)
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -1148,6 +1148,7 @@ config GPIO_MADERA
 config GPIO_MAX77620
        tristate "GPIO support for PMIC MAX77620 and MAX20024"
        depends on MFD_MAX77620
+       select GPIOLIB_IRQCHIP
        help
          GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
          MAX77620 PMIC has 8 pins that can be configured as GPIOs. The