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
14void 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