Example #1
0
static int __init x3proto_devices_setup(void)
{
	int ret, i;

	/*
	 * IRLs are only needed for ILSEL mappings, so flip over the INTC
	 * pins at a later point to enable the GPIOs to settle.
	 */
	x3proto_init_irq();

	/*
	 * Now that ILSELs are available, set up the baseboard GPIOs.
	 */
	ret = x3proto_gpio_setup();
	if (unlikely(ret))
		return ret;

	/*
	 * Propagate dynamic GPIOs for the baseboard button device.
	 */
	for (i = 0; i < ARRAY_SIZE(baseboard_buttons); i++)
		baseboard_buttons[i].gpio = x3proto_gpio_chip.base + i;

	r8a66597_usb_host_resources[1].start =
		r8a66597_usb_host_resources[1].end = ilsel_enable(ILSEL_USBH_I);

	m66592_usb_peripheral_resources[1].start =
		m66592_usb_peripheral_resources[1].end = ilsel_enable(ILSEL_USBP_I);

	smc91x_resources[1].start =
		smc91x_resources[1].end = ilsel_enable(ILSEL_LAN);

	return platform_add_devices(x3proto_devices,
				    ARRAY_SIZE(x3proto_devices));
}
Example #2
0
File: setup.c Project: E-LLP/n900
static int __init x3proto_devices_setup(void)
{
	r8a66597_usb_host_resources[1].start =
		r8a66597_usb_host_resources[1].end = ilsel_enable(ILSEL_USBH_I);

	m66592_usb_peripheral_resources[1].start =
		m66592_usb_peripheral_resources[1].end = ilsel_enable(ILSEL_USBP_I);

	smc91x_resources[1].start =
		smc91x_resources[1].end = ilsel_enable(ILSEL_LAN);

	return platform_add_devices(x3proto_devices,
				    ARRAY_SIZE(x3proto_devices));
}
Example #3
0
File: gpio.c Project: 08opt/linux
int __init x3proto_gpio_setup(void)
{
	int ilsel;
	int ret, i;

	ilsel = ilsel_enable(ILSEL_KEY);
	if (unlikely(ilsel < 0))
		return ilsel;

	ret = gpiochip_add(&x3proto_gpio_chip);
	if (unlikely(ret))
		goto err_gpio;

	for (i = 0; i < NR_BASEBOARD_GPIOS; i++) {
		unsigned long flags;
		int irq = create_irq();

		if (unlikely(irq < 0)) {
			ret = -EINVAL;
			goto err_irq;
		}

		spin_lock_irqsave(&x3proto_gpio_lock, flags);
		x3proto_gpio_irq_map[i] = irq;
		irq_set_chip_and_handler_name(irq, &dummy_irq_chip,
					      handle_simple_irq, "gpio");
		spin_unlock_irqrestore(&x3proto_gpio_lock, flags);
	}

	pr_info("registering '%s' support, handling GPIOs %u -> %u, "
		"bound to IRQ %u\n",
		x3proto_gpio_chip.label, x3proto_gpio_chip.base,
		x3proto_gpio_chip.base + x3proto_gpio_chip.ngpio,
		ilsel);

	irq_set_chained_handler(ilsel, x3proto_gpio_irq_handler);
	irq_set_irq_wake(ilsel, 1);

	return 0;

err_irq:
	for (; i >= 0; --i)
		if (x3proto_gpio_irq_map[i])
			destroy_irq(x3proto_gpio_irq_map[i]);

	ret = gpiochip_remove(&x3proto_gpio_chip);
	if (unlikely(ret))
		pr_err("Failed deregistering GPIO\n");

err_gpio:
	synchronize_irq(ilsel);

	ilsel_disable(ILSEL_KEY);

	return ret;
}
Example #4
0
File: gpio.c Project: causten/linux
int __init x3proto_gpio_setup(void)
{
	int ilsel, ret;

	ilsel = ilsel_enable(ILSEL_KEY);
	if (unlikely(ilsel < 0))
		return ilsel;

	ret = gpiochip_add(&x3proto_gpio_chip);
	if (unlikely(ret))
		goto err_gpio;

	x3proto_irq_domain = irq_domain_add_linear(NULL, NR_BASEBOARD_GPIOS,
						   &x3proto_gpio_irq_ops, NULL);
	if (unlikely(!x3proto_irq_domain))
		goto err_irq;

	pr_info("registering '%s' support, handling GPIOs %u -> %u, "
		"bound to IRQ %u\n",
		x3proto_gpio_chip.label, x3proto_gpio_chip.base,
		x3proto_gpio_chip.base + x3proto_gpio_chip.ngpio,
		ilsel);

	irq_set_chained_handler(ilsel, x3proto_gpio_irq_handler);
	irq_set_irq_wake(ilsel, 1);

	return 0;

err_irq:
	gpiochip_remove(&x3proto_gpio_chip);
	ret = 0;
err_gpio:
	synchronize_irq(ilsel);

	ilsel_disable(ILSEL_KEY);

	return ret;
}