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uio: Remove uio_pdrv and use uio_pdrv_genirq instead

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The patch "UIO: fix uio_pdrv_genirq with device tree but no interrupt"
(sha1: e3a3c3a205)
add support to use this driver with no interrupts.
uio_pdrv_genirq also supports device-tree binding
which is not available in uio_pdrv.

That's why this uio_pdrv driver can be just removed.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Vitalii Demianets <vitas@nppfactor.kiev.ua>
Reviewed-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michal Simek 2013-06-26 11:52:12 +02:00 committed by Greg Kroah-Hartman
parent b950ac1dab
commit 26dac3c49d
3 changed files with 0 additions and 121 deletions
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7
drivers/uio/Kconfig
View File

@ -23,13 +23,6 @@ config UIO_CIF
To compile this driver as a module, choose M here: the module
will be called uio_cif.
config UIO_PDRV
tristate "Userspace I/O platform driver"
help
Generic platform driver for Userspace I/O devices.
If you don't know what to do here, say N.
config UIO_PDRV_GENIRQ
tristate "Userspace I/O platform driver with generic IRQ handling"
help

1
drivers/uio/Makefile
View File

@ -1,6 +1,5 @@
obj-$(CONFIG_UIO) += uio.o
obj-$(CONFIG_UIO_CIF) += uio_cif.o
obj-$(CONFIG_UIO_PDRV) += uio_pdrv.o
obj-$(CONFIG_UIO_PDRV_GENIRQ) += uio_pdrv_genirq.o
obj-$(CONFIG_UIO_DMEM_GENIRQ) += uio_dmem_genirq.o
obj-$(CONFIG_UIO_AEC) += uio_aec.o

113
drivers/uio/uio_pdrv.c
View File

@ -1,113 +0,0 @@
/*
* drivers/uio/uio_pdrv.c
*
* Copyright (C) 2008 by Digi International Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
#include <linux/platform_device.h>
#include <linux/uio_driver.h>
#include <linux/stringify.h>
#include <linux/module.h>
#include <linux/slab.h>
#define DRIVER_NAME "uio_pdrv"
struct uio_platdata {
struct uio_info *uioinfo;
};
static int uio_pdrv_probe(struct platform_device *pdev)
{
struct uio_info *uioinfo = pdev->dev.platform_data;
struct uio_platdata *pdata;
struct uio_mem *uiomem;
int ret = -ENODEV;
int i;
if (!uioinfo || !uioinfo->name || !uioinfo->version) {
dev_dbg(&pdev->dev, "%s: err_uioinfo\n", __func__);
goto err_uioinfo;
}
pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
if (!pdata) {
ret = -ENOMEM;
dev_dbg(&pdev->dev, "%s: err_alloc_pdata\n", __func__);
goto err_alloc_pdata;
}
pdata->uioinfo = uioinfo;
uiomem = &uioinfo->mem[0];
for (i = 0; i < pdev->num_resources; ++i) {
struct resource *r = &pdev->resource[i];
if (r->flags != IORESOURCE_MEM)
continue;
if (uiomem >= &uioinfo->mem[MAX_UIO_MAPS]) {
dev_warn(&pdev->dev, "device has more than "
__stringify(MAX_UIO_MAPS)
" I/O memory resources.\n");
break;
}
uiomem->memtype = UIO_MEM_PHYS;
uiomem->addr = r->start;
uiomem->size = resource_size(r);
uiomem->name = r->name;
++uiomem;
}
while (uiomem < &uioinfo->mem[MAX_UIO_MAPS]) {
uiomem->size = 0;
++uiomem;
}
pdata->uioinfo->priv = pdata;
ret = uio_register_device(&pdev->dev, pdata->uioinfo);
if (ret) {
kfree(pdata);
err_alloc_pdata:
err_uioinfo:
return ret;
}
platform_set_drvdata(pdev, pdata);
return 0;
}
static int uio_pdrv_remove(struct platform_device *pdev)
{
struct uio_platdata *pdata = platform_get_drvdata(pdev);
uio_unregister_device(pdata->uioinfo);
kfree(pdata);
return 0;
}
static struct platform_driver uio_pdrv = {
.probe = uio_pdrv_probe,
.remove = uio_pdrv_remove,
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
},
};
module_platform_driver(uio_pdrv);
MODULE_AUTHOR("Uwe Kleine-Koenig");
MODULE_DESCRIPTION("Userspace I/O platform driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:" DRIVER_NAME);