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 <awalls@md.metrocast.net>
8 */
9
10 #include "cx23885.h"
11 #include "cx23885-av.h"
12 #include "cx23885-video.h"
13
cx23885_av_work_handler(struct work_struct * work)14 void cx23885_av_work_handler(struct work_struct *work)
15 {
16 struct cx23885_dev *dev =
17 container_of(work, struct cx23885_dev, cx25840_work);
18 bool handled = false;
19
20 v4l2_subdev_call(dev->sd_cx25840, core, interrupt_service_routine,
21 PCI_MSK_AV_CORE, &handled);
22
23 /* Getting here with the interrupt not handled
24 then probbaly flatiron does have pending interrupts.
25 */
26 if (!handled) {
27 /* clear left and right adc channel interrupt request flag */
28 cx23885_flatiron_write(dev, 0x1f,
29 cx23885_flatiron_read(dev, 0x1f) | 0x80);
30 cx23885_flatiron_write(dev, 0x23,
31 cx23885_flatiron_read(dev, 0x23) | 0x80);
32 }
33
34 cx23885_irq_enable(dev, PCI_MSK_AV_CORE);
35 }
36