1 files changed, 0 insertions, 140 deletions
diff --git a/drivers/staging/comedi/drivers/addi_watchdog.c b/drivers/staging/comedi/drivers/addi_watchdog.c
deleted file mode 100644
index 69b323fb869f..000000000000
--- a/drivers/staging/comedi/drivers/addi_watchdog.c
+++ /dev/null
@@ -1,140 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * COMEDI driver for the watchdog subdevice found on some addi-data boards
- * Copyright (c) 2013 H Hartley Sweeten <hsweeten@visionengravers.com>
- *
- * Based on implementations in various addi-data COMEDI drivers.
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-#include "addi_tcw.h"
-#include "addi_watchdog.h"
-
-struct addi_watchdog_private {
-	unsigned long iobase;
-	unsigned int wdog_ctrl;
-};
-
-/*
- * The watchdog subdevice is configured with two INSN_CONFIG instructions:
- *
- * Enable the watchdog and set the reload timeout:
- *	data[0] = INSN_CONFIG_ARM
- *	data[1] = timeout reload value
- *
- * Disable the watchdog:
- *	data[0] = INSN_CONFIG_DISARM
- */
-static int addi_watchdog_insn_config(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	struct addi_watchdog_private *spriv = s->private;
-	unsigned int reload;
-
-	switch (data[0]) {
-	case INSN_CONFIG_ARM:
-		spriv->wdog_ctrl = ADDI_TCW_CTRL_ENA;
-		reload = data[1] & s->maxdata;
-		outl(reload, spriv->iobase + ADDI_TCW_RELOAD_REG);
-
-		/* Time base is 20ms, let the user know the timeout */
-		dev_info(dev->class_dev, "watchdog enabled, timeout:%dms\n",
-			 20 * reload + 20);
-		break;
-	case INSN_CONFIG_DISARM:
-		spriv->wdog_ctrl = 0;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	outl(spriv->wdog_ctrl, spriv->iobase + ADDI_TCW_CTRL_REG);
-
-	return insn->n;
-}
-
-static int addi_watchdog_insn_read(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct addi_watchdog_private *spriv = s->private;
-	int i;
-
-	for (i = 0; i < insn->n; i++)
-		data[i] = inl(spriv->iobase + ADDI_TCW_STATUS_REG);
-
-	return insn->n;
-}
-
-static int addi_watchdog_insn_write(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	struct addi_watchdog_private *spriv = s->private;
-	int i;
-
-	if (spriv->wdog_ctrl == 0) {
-		dev_warn(dev->class_dev, "watchdog is disabled\n");
-		return -EINVAL;
-	}
-
-	/* "ping" the watchdog */
-	for (i = 0; i < insn->n; i++) {
-		outl(spriv->wdog_ctrl | ADDI_TCW_CTRL_TRIG,
-		     spriv->iobase + ADDI_TCW_CTRL_REG);
-	}
-
-	return insn->n;
-}
-
-void addi_watchdog_reset(unsigned long iobase)
-{
-	outl(0x0, iobase + ADDI_TCW_CTRL_REG);
-	outl(0x0, iobase + ADDI_TCW_RELOAD_REG);
-}
-EXPORT_SYMBOL_GPL(addi_watchdog_reset);
-
-int addi_watchdog_init(struct comedi_subdevice *s, unsigned long iobase)
-{
-	struct addi_watchdog_private *spriv;
-
-	spriv = comedi_alloc_spriv(s, sizeof(*spriv));
-	if (!spriv)
-		return -ENOMEM;
-
-	spriv->iobase = iobase;
-
-	s->type		= COMEDI_SUBD_TIMER;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 1;
-	s->maxdata	= 0xff;
-	s->insn_config	= addi_watchdog_insn_config;
-	s->insn_read	= addi_watchdog_insn_read;
-	s->insn_write	= addi_watchdog_insn_write;
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(addi_watchdog_init);
-
-static int __init addi_watchdog_module_init(void)
-{
-	return 0;
-}
-module_init(addi_watchdog_module_init);
-
-static void __exit addi_watchdog_module_exit(void)
-{
-}
-module_exit(addi_watchdog_module_exit);
-
-MODULE_DESCRIPTION("ADDI-DATA Watchdog subdevice");
-MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
-MODULE_LICENSE("GPL");