From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 12:05:51 +0200
Subject: Adding upstream version 5.10.209.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 drivers/media/pci/cx23885/cx23885-av.c | 35 ++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 drivers/media/pci/cx23885/cx23885-av.c

(limited to 'drivers/media/pci/cx23885/cx23885-av.c')

diff --git a/drivers/media/pci/cx23885/cx23885-av.c b/drivers/media/pci/cx23885/cx23885-av.c
new file mode 100644
index 000000000..f8ac29056
--- /dev/null
+++ b/drivers/media/pci/cx23885/cx23885-av.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Driver for the Conexant CX23885/7/8 PCIe bridge
+ *
+ *  AV device support routines - non-input, non-vl42_subdev routines
+ *
+ *  Copyright (C) 2010  Andy Walls <awalls@md.metrocast.net>
+ */
+
+#include "cx23885.h"
+#include "cx23885-av.h"
+#include "cx23885-video.h"
+
+void cx23885_av_work_handler(struct work_struct *work)
+{
+	struct cx23885_dev *dev =
+			   container_of(work, struct cx23885_dev, cx25840_work);
+	bool handled = false;
+
+	v4l2_subdev_call(dev->sd_cx25840, core, interrupt_service_routine,
+			 PCI_MSK_AV_CORE, &handled);
+
+	/* Getting here with the interrupt not handled
+	   then probbaly flatiron does have pending interrupts.
+	*/
+	if (!handled) {
+		/* clear left and right adc channel interrupt request flag */
+		cx23885_flatiron_write(dev, 0x1f,
+			cx23885_flatiron_read(dev, 0x1f) | 0x80);
+		cx23885_flatiron_write(dev, 0x23,
+			cx23885_flatiron_read(dev, 0x23) | 0x80);
+	}
+
+	cx23885_irq_enable(dev, PCI_MSK_AV_CORE);
+}
-- 
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