Commit f7aed67d authored by Linus Walleij's avatar Linus Walleij
Browse files

gpio: mcp23s08: delete req/rel_resource callbacks 



When using the GPIOLIB_IRQCHIP the gpiolib provides a
straight-forward implementation of request/release resources,
rely on that instead.

Cc: Phil Reid <preid@electromag.com.au>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent dad3d272

drivers/gpio/gpio-mcp23s08.c

+0 −25
Original line number Diff line number Diff line
@@ -435,29 +435,6 @@ static void mcp23s08_irq_bus_unlock(struct irq_data *data) 
	mutex_unlock(&mcp->irq_lock);

}



static int mcp23s08_irq_reqres(struct irq_data *data)

{

	struct gpio_chip *gc = irq_data_get_irq_chip_data(data);

	struct mcp23s08 *mcp = gpiochip_get_data(gc);



	if (gpiochip_lock_as_irq(&mcp->chip, data->hwirq)) {

		dev_err(mcp->chip.parent,

			"unable to lock HW IRQ %lu for IRQ usage\n",

			data->hwirq);

		return -EINVAL;

	}



	return 0;

}



static void mcp23s08_irq_relres(struct irq_data *data)

{

	struct gpio_chip *gc = irq_data_get_irq_chip_data(data);

	struct mcp23s08 *mcp = gpiochip_get_data(gc);



	gpiochip_unlock_as_irq(&mcp->chip, data->hwirq);

}



static struct irq_chip mcp23s08_irq_chip = {

	.name = "gpio-mcp23xxx",

	.irq_mask = mcp23s08_irq_mask,
@@ -465,8 +442,6 @@ static struct irq_chip mcp23s08_irq_chip = { 
	.irq_set_type = mcp23s08_irq_set_type,

	.irq_bus_lock = mcp23s08_irq_bus_lock,

	.irq_bus_sync_unlock = mcp23s08_irq_bus_unlock,

	.irq_request_resources = mcp23s08_irq_reqres,

	.irq_release_resources = mcp23s08_irq_relres,

};



static int mcp23s08_irq_setup(struct mcp23s08 *mcp)