cx23885-av.c 984 B

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  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /*
  3. * Driver for the Conexant CX23885/7/8 PCIe bridge
  4. *
  5. * AV device support routines - non-input, non-vl42_subdev routines
  6. *
  7. * Copyright (C) 2010 Andy Walls <[email protected]>
  8. */
  9. #include "cx23885.h"
  10. #include "cx23885-av.h"
  11. #include "cx23885-video.h"
  12. void cx23885_av_work_handler(struct work_struct *work)
  13. {
  14. struct cx23885_dev *dev =
  15. container_of(work, struct cx23885_dev, cx25840_work);
  16. bool handled = false;
  17. v4l2_subdev_call(dev->sd_cx25840, core, interrupt_service_routine,
  18. PCI_MSK_AV_CORE, &handled);
  19. /* Getting here with the interrupt not handled
  20. then probbaly flatiron does have pending interrupts.
  21. */
  22. if (!handled) {
  23. /* clear left and right adc channel interrupt request flag */
  24. cx23885_flatiron_write(dev, 0x1f,
  25. cx23885_flatiron_read(dev, 0x1f) | 0x80);
  26. cx23885_flatiron_write(dev, 0x23,
  27. cx23885_flatiron_read(dev, 0x23) | 0x80);
  28. }
  29. cx23885_irq_enable(dev, PCI_MSK_AV_CORE);
  30. }