gpio: dwapb: Remove unneeded has_irq member in struct dwapb_port_property

has_irq member of struct dwapb_port_property is used only in one place,
so, make it local test instead and remove from the structure.
This local test is using memchr_inv() which is quite efficient in comparison
to the original loop and possible little overhead can be neglected.

Signed-off-by: Andy Shevchenko <[e-mail]>
Tested-by: Serge Semin <[e-mail]>
Acked-by: Lee Jones <[e-mail]>
Acked-by: Serge Semin <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Linus Walleij <[e-mail]>

drivers/gpio/gpio-dwapb.c

···
 	irq_hw_number_t hwirq;
 	int err, i;
 
+	if (memchr_inv(pp->irq, 0, sizeof(pp->irq)) == NULL) {
+		dev_warn(gpio->dev, "no IRQ for port%d\n", pp->idx);
+		return;
+	}
+
 	gpio->domain = irq_domain_create_linear(fwnode, ngpio,
 						 &irq_generic_chip_ops, gpio);
 	if (!gpio->domain)
···
 	if (pp->idx == 0)
 		port->gc.set_config = dwapb_gpio_set_config;
 
-	if (pp->has_irq)
+	/* Only port A can provide interrupts in all configurations of the IP */
+	if (pp->idx == 0)
 		dwapb_configure_irqs(gpio, port, pp);
 
 	err = gpiochip_add_data(&port->gc, port);
···
 			irq = platform_get_irq_optional(to_platform_device(dev), j);
 		if (irq > 0)
 			pp->irq[j] = irq;
-
-		if (pp->irq[j])
-			pp->has_irq = true;
 	}
-
-	if (!pp->has_irq)
-		dev_warn(dev, "no irq for port%d\n", pp->idx);
 }
 
 static struct dwapb_platform_data *dwapb_gpio_get_pdata(struct device *dev)

drivers/mfd/intel_quark_i2c_gpio.c

···
 	pdata->properties->ngpio	= INTEL_QUARK_MFD_NGPIO;
 	pdata->properties->gpio_base	= INTEL_QUARK_MFD_GPIO_BASE;
 	pdata->properties->irq[0]	= pdev->irq;
-	pdata->properties->has_irq	= true;
 	pdata->properties->irq_shared	= true;
 
 	cell->platform_data = pdata;

include/linux/platform_data/gpio-dwapb.h

···
 	unsigned int	ngpio;
 	unsigned int	gpio_base;
 	int		irq[32];
-	bool		has_irq;
 	bool		irq_shared;
 };