diff options
Diffstat (limited to 'drivers/gpio/gpio-intel-mid.c')
| -rw-r--r-- | drivers/gpio/gpio-intel-mid.c | 42 |
1 files changed, 30 insertions, 12 deletions
diff --git a/drivers/gpio/gpio-intel-mid.c b/drivers/gpio/gpio-intel-mid.c index be803af658a..118a6bf455d 100644 --- a/drivers/gpio/gpio-intel-mid.c +++ b/drivers/gpio/gpio-intel-mid.c @@ -1,7 +1,7 @@ /* - * Moorestown platform Langwell chip GPIO driver + * Intel MID GPIO driver * - * Copyright (c) 2008, 2009, 2013, Intel Corporation. + * Copyright (c) 2008-2014 Intel Corporation. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -11,10 +11,6 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Supports: @@ -235,11 +231,33 @@ static void intel_mid_irq_mask(struct irq_data *d) { } +static int intel_mid_irq_reqres(struct irq_data *d) +{ + struct intel_mid_gpio *priv = irq_data_get_irq_chip_data(d); + + if (gpio_lock_as_irq(&priv->chip, irqd_to_hwirq(d))) { + dev_err(priv->chip.dev, + "unable to lock HW IRQ %lu for IRQ\n", + irqd_to_hwirq(d)); + return -EINVAL; + } + return 0; +} + +static void intel_mid_irq_relres(struct irq_data *d) +{ + struct intel_mid_gpio *priv = irq_data_get_irq_chip_data(d); + + gpio_unlock_as_irq(&priv->chip, irqd_to_hwirq(d)); +} + static struct irq_chip intel_mid_irqchip = { .name = "INTEL_MID-GPIO", .irq_mask = intel_mid_irq_mask, .irq_unmask = intel_mid_irq_unmask, .irq_set_type = intel_mid_irq_type, + .irq_request_resources = intel_mid_irq_reqres, + .irq_release_resources = intel_mid_irq_relres, }; static const struct intel_mid_gpio_ddata gpio_lincroft = { @@ -275,7 +293,7 @@ static const struct intel_mid_gpio_ddata gpio_tangier = { .chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE, }; -static DEFINE_PCI_DEVICE_TABLE(intel_gpio_ids) = { +static const struct pci_device_id intel_gpio_ids[] = { { /* Lincroft */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x080f), @@ -358,8 +376,7 @@ static int intel_gpio_irq_map(struct irq_domain *d, unsigned int irq, { struct intel_mid_gpio *priv = d->host_data; - irq_set_chip_and_handler_name(irq, &intel_mid_irqchip, - handle_simple_irq, "demux"); + irq_set_chip_and_handler(irq, &intel_mid_irqchip, handle_simple_irq); irq_set_chip_data(irq, priv); irq_set_irq_type(irq, IRQ_TYPE_NONE); @@ -373,8 +390,8 @@ static const struct irq_domain_ops intel_gpio_irq_ops = { static int intel_gpio_runtime_idle(struct device *dev) { - pm_schedule_suspend(dev, 500); - return -EBUSY; + int err = pm_schedule_suspend(dev, 500); + return err ?: -EBUSY; } static const struct dev_pm_ops intel_gpio_pm_ops = { @@ -418,6 +435,7 @@ static int intel_gpio_probe(struct pci_dev *pdev, priv->reg_base = pcim_iomap_table(pdev)[0]; priv->chip.label = dev_name(&pdev->dev); + priv->chip.dev = &pdev->dev; priv->chip.request = intel_gpio_request; priv->chip.direction_input = intel_gpio_direction_input; priv->chip.direction_output = intel_gpio_direction_output; @@ -426,7 +444,7 @@ static int intel_gpio_probe(struct pci_dev *pdev, priv->chip.to_irq = intel_gpio_to_irq; priv->chip.base = gpio_base; priv->chip.ngpio = ddata->ngpio; - priv->chip.can_sleep = 0; + priv->chip.can_sleep = false; priv->pdev = pdev; spin_lock_init(&priv->lock); |