drivers/misc/irq-uclass.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright 2019 Google, LLC
   4  * Written by Simon Glass <sjg@chromium.org>
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <irq.h>
  10 #include <dm/device-internal.h>
  11
  12 int irq_route_pmc_gpio_gpe(struct udevice *dev, uint pmc_gpe_num)
  13 {
  14         const struct irq_ops *ops = irq_get_ops(dev);
  15
  16         if (!ops->route_pmc_gpio_gpe)
  17                 return -ENOSYS;
  18
  19         return ops->route_pmc_gpio_gpe(dev, pmc_gpe_num);
  20 }
  21
  22 int irq_set_polarity(struct udevice *dev, uint irq, bool active_low)
  23 {
  24         const struct irq_ops *ops = irq_get_ops(dev);
  25
  26         if (!ops->set_polarity)
  27                 return -ENOSYS;
  28
  29         return ops->set_polarity(dev, irq, active_low);
  30 }
  31
  32 int irq_snapshot_polarities(struct udevice *dev)
  33 {
  34         const struct irq_ops *ops = irq_get_ops(dev);
  35
  36         if (!ops->snapshot_polarities)
  37                 return -ENOSYS;
  38
  39         return ops->snapshot_polarities(dev);
  40 }
  41
  42 int irq_restore_polarities(struct udevice *dev)
  43 {
  44         const struct irq_ops *ops = irq_get_ops(dev);
  45
  46         if (!ops->restore_polarities)
  47                 return -ENOSYS;
  48
  49         return ops->restore_polarities(dev);
  50 }
  51
  52 int irq_first_device_type(enum irq_dev_t type, struct udevice **devp)
  53 {
  54         int ret;
  55
  56         ret = uclass_first_device_drvdata(UCLASS_IRQ, type, devp);
  57         if (ret)
  58                 return log_msg_ret("find", ret);
  59
  60         return 0;
  61 }
  62
  63 UCLASS_DRIVER(irq) = {
  64         .id             = UCLASS_IRQ,
  65         .name           = "irq",
  66 };