gpio: brcmstb: add support for gpio-ranges

A pin controller device mapped with the gpio-ranges property
will need implementations of the .request and .free members of
the gpiochip.

Signed-off-by: Doug Berger <[email protected]>
Tested-by: Phil Elwell <[email protected]>
Acked-by: Florian Fainelli <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bartosz Golaszewski <[email protected]>

Author: Doug Berger

drivers/gpio/gpio-brcmstb.c

@@ -694,6 +694,8 @@ static int brcmstb_gpio_probe(struct platform_device *pdev)
 		/* not all ngpio lines are valid, will use bank width later */
 		gc->ngpio = MAX_GPIO_PER_BANK;
 		gc->offset = bank->id * MAX_GPIO_PER_BANK;
+		gc->request = gpiochip_generic_request;
+		gc->free = gpiochip_generic_free;
 		if (priv->parent_irq > 0)
 			gc->to_irq = brcmstb_gpio_to_irq;