staging: comedi: mpc8260cpm: remove driver

This driver is incomplete and seriously broken. It can't be enabled
in the Kconfig and it's not even set up to be compiled.

Just remove it.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/mpc8260cpm.c

-/*
-    comedi/drivers/mpc8260.c
-    driver for digital I/O pins on the MPC 8260 CPM module
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000,2001 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-/*
-Driver: mpc8260cpm
-Description: MPC8260 CPM module generic digital I/O lines
-Devices: [Motorola] MPC8260 CPM (mpc8260cpm)
-Author: ds
-Status: experimental
-Updated: Sat, 16 Mar 2002 17:34:48 -0800
-
-This driver is specific to the Motorola MPC8260 processor, allowing
-you to access the processor's generic digital I/O lines.
-
-It is apparently missing some code.
-*/
-
-#include "../comedidev.h"
-
-extern unsigned long mpc8260_dio_reserved[4];
-
-struct mpc8260cpm_private {
-
-	int data;
-
-};
-
-#define devpriv ((struct mpc8260cpm_private *)dev->private)
-
-static unsigned long *cpm_pdat(int port)
-{
-	switch (port) {
-	case 0:
-		return &io->iop_pdata;
-	case 1:
-		return &io->iop_pdatb;
-	case 2:
-		return &io->iop_pdatc;
-	case 3:
-		return &io->iop_pdatd;
-	}
-}
-
-static int mpc8260cpm_dio_config(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
-{
-	int n;
-	unsigned int d;
-	unsigned int mask;
-	int port;
-
-	port = (int)s->private;
-	mask = 1 << CR_CHAN(insn->chanspec);
-	if (mask & cpm_reserved_bits[port]) {
-		return -EINVAL;
-	}
-
-	switch (data[0]) {
-	case INSN_CONFIG_DIO_OUTPUT:
-		s->io_bits |= mask;
-		break;
-	case INSN_CONFIG_DIO_INPUT:
-		s->io_bits &= ~mask;
-		break;
-	case INSN_CONFIG_DIO_QUERY:
-		data[1] = (s->io_bits & mask) ? COMEDI_OUTPUT : COMEDI_INPUT;
-		return insn->n;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	switch (port) {
-	case 0:
-		return &io->iop_pdira;
-	case 1:
-		return &io->iop_pdirb;
-	case 2:
-		return &io->iop_pdirc;
-	case 3:
-		return &io->iop_pdird;
-	}
-
-	return 1;
-}
-
-static int mpc8260cpm_dio_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	int port;
-	unsigned long *p;
-
-	p = cpm_pdat((int)s->private);
-
-	return insn->n;
-}
-
-static int mpc8260cpm_attach(struct comedi_device *dev,
-			     struct comedi_devconfig *it)
-{
-	struct comedi_subdevice *s;
-	int i;
-	int ret;
-
-	printk("comedi%d: mpc8260cpm: ", dev->minor);
-
-	dev->board_ptr = mpc8260cpm_boards + dev->board;
-
-	dev->board_name = thisboard->name;
-
-	if (alloc_private(dev, sizeof(struct mpc8260cpm_private)) < 0)
-		return -ENOMEM;
-
-	ret =comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < 4; i++) {
-		s = &dev->subdevices[i];
-		s->type = COMEDI_SUBD_DIO;
-		s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-		s->n_chan = 32;
-		s->maxdata = 1;
-		s->range_table = &range_digital;
-		s->insn_config = mpc8260cpm_dio_config;
-		s->insn_bits = mpc8260cpm_dio_bits;
-	}
-
-	return 1;
-}
-
-static void mpc8260cpm_detach(struct comedi_device *dev)
-{
-	/* Nothing to cleanup */
-}
-
-static struct comedi_driver mpc8260cpm_driver = {
-	.driver_name	= "mpc8260cpm",
-	.module		= THIS_MODULE,
-	.attach		= mpc8260cpm_attach,
-	.detach		= mpc8260cpm_detach,
-};
-module_comedi_driver(mpc8260cpm_driver);