gpio: 104-dio-48e: Add set_multiple callback function support

	spin_unlock_irqrestore(&dio48egpio->lock, flags);

}

static void dio48e_gpio_set_multiple(struct gpio_chip *chip,

	unsigned long *mask, unsigned long *bits)

{

	struct dio48e_gpio *const dio48egpio = gpiochip_get_data(chip);

	unsigned int i;

	const unsigned int gpio_reg_size = 8;

	unsigned int port;

	unsigned int out_port;

	unsigned int bitmask;

	unsigned long flags;

	/* set bits are evaluated a gpio register size at a time */

	for (i = 0; i < chip->ngpio; i += gpio_reg_size) {

		/* no more set bits in this mask word; skip to the next word */

		if (!mask[BIT_WORD(i)]) {

			i = (BIT_WORD(i) + 1) * BITS_PER_LONG - gpio_reg_size;

			continue;

		}

		port = i / gpio_reg_size;

		out_port = (port > 2) ? port + 1 : port;

		bitmask = mask[BIT_WORD(i)] & bits[BIT_WORD(i)];

		spin_lock_irqsave(&dio48egpio->lock, flags);

		/* update output state data and set device gpio register */

		dio48egpio->out_state[port] &= ~mask[BIT_WORD(i)];

		dio48egpio->out_state[port] |= bitmask;

		outb(dio48egpio->out_state[port], dio48egpio->base + out_port);

		spin_unlock_irqrestore(&dio48egpio->lock, flags);

		/* prepare for next gpio register set */

		mask[BIT_WORD(i)] >>= gpio_reg_size;

		bits[BIT_WORD(i)] >>= gpio_reg_size;

	}

}

static void dio48e_irq_ack(struct irq_data *data)

{

}

	dio48egpio->chip.direction_output = dio48e_gpio_direction_output;

	dio48egpio->chip.get = dio48e_gpio_get;

	dio48egpio->chip.set = dio48e_gpio_set;

	dio48egpio->chip.set_multiple = dio48e_gpio_set_multiple;

	dio48egpio->base = base[id];

	dio48egpio->irq = irq[id];