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path: root/drivers/pcmcia/electra_cf.c
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Diffstat (limited to 'drivers/pcmcia/electra_cf.c')
-rw-r--r--drivers/pcmcia/electra_cf.c94
1 files changed, 37 insertions, 57 deletions
diff --git a/drivers/pcmcia/electra_cf.c b/drivers/pcmcia/electra_cf.c
index a007321ad314..2530079d38f4 100644
--- a/drivers/pcmcia/electra_cf.c
+++ b/drivers/pcmcia/electra_cf.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2007 PA Semi, Inc
*
* Maintained by: Olof Johansson <olof@lixom.net>
*
* Based on drivers/pcmcia/omap_cf.c
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/module.h>
@@ -30,6 +17,8 @@
#include <linux/interrupt.h>
#include <linux/mm.h>
#include <linux/vmalloc.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/slab.h>
@@ -46,14 +35,14 @@ struct electra_cf_socket {
struct platform_device *ofdev;
unsigned long mem_phys;
- void __iomem * mem_base;
+ void __iomem *mem_base;
unsigned long mem_size;
- void __iomem * io_virt;
+ void __iomem *io_virt;
unsigned int io_base;
unsigned int io_size;
u_int irq;
struct resource iomem;
- void __iomem * gpio_base;
+ void __iomem *gpio_base;
int gpio_detect;
int gpio_vsense;
int gpio_3v;
@@ -77,9 +66,9 @@ static int electra_cf_ss_init(struct pcmcia_socket *s)
}
/* the timer is primarily to kick this socket's pccardd */
-static void electra_cf_timer(unsigned long _cf)
+static void electra_cf_timer(struct timer_list *t)
{
- struct electra_cf_socket *cf = (void *) _cf;
+ struct electra_cf_socket *cf = timer_container_of(cf, t, timer);
int present = electra_cf_present(cf);
if (present != cf->present) {
@@ -93,7 +82,9 @@ static void electra_cf_timer(unsigned long _cf)
static irqreturn_t electra_cf_irq(int irq, void *_cf)
{
- electra_cf_timer((unsigned long)_cf);
+ struct electra_cf_socket *cf = _cf;
+
+ electra_cf_timer(&cf->timer);
return IRQ_HANDLED;
}
@@ -187,10 +178,9 @@ static int electra_cf_probe(struct platform_device *ofdev)
struct device_node *np = ofdev->dev.of_node;
struct electra_cf_socket *cf;
struct resource mem, io;
- int status;
+ int status = -ENOMEM;
const unsigned int *prop;
int err;
- struct vm_struct *area;
err = of_address_to_resource(np, 0, &mem);
if (err)
@@ -200,39 +190,30 @@ static int electra_cf_probe(struct platform_device *ofdev)
if (err)
return -EINVAL;
- cf = kzalloc(sizeof *cf, GFP_KERNEL);
+ cf = kzalloc(sizeof(*cf), GFP_KERNEL);
if (!cf)
return -ENOMEM;
- setup_timer(&cf->timer, electra_cf_timer, (unsigned long)cf);
- cf->irq = NO_IRQ;
+ timer_setup(&cf->timer, electra_cf_timer, 0);
+ cf->irq = 0;
cf->ofdev = ofdev;
cf->mem_phys = mem.start;
cf->mem_size = PAGE_ALIGN(resource_size(&mem));
cf->mem_base = ioremap(cf->mem_phys, cf->mem_size);
+ if (!cf->mem_base)
+ goto out_free_cf;
cf->io_size = PAGE_ALIGN(resource_size(&io));
-
- area = __get_vm_area(cf->io_size, 0, PHB_IO_BASE, PHB_IO_END);
- if (area == NULL)
- return -ENOMEM;
-
- cf->io_virt = (void __iomem *)(area->addr);
+ cf->io_virt = ioremap_phb(io.start, cf->io_size);
+ if (!cf->io_virt)
+ goto out_unmap_mem;
cf->gpio_base = ioremap(0xfc103000, 0x1000);
+ if (!cf->gpio_base)
+ goto out_unmap_virt;
dev_set_drvdata(device, cf);
- if (!cf->mem_base || !cf->io_virt || !cf->gpio_base ||
- (__ioremap_at(io.start, cf->io_virt, cf->io_size,
- _PAGE_NO_CACHE | _PAGE_GUARDED) == NULL)) {
- dev_err(device, "can't ioremap ranges\n");
- status = -ENOMEM;
- goto fail1;
- }
-
-
cf->io_base = (unsigned long)cf->io_virt - VMALLOC_END;
-
cf->iomem.start = (unsigned long)cf->mem_base;
cf->iomem.end = (unsigned long)cf->mem_base + (mem.end - mem.start);
cf->iomem.flags = IORESOURCE_MEM;
@@ -248,6 +229,8 @@ static int electra_cf_probe(struct platform_device *ofdev)
cf->socket.pci_irq = cf->irq;
+ status = -EINVAL;
+
prop = of_get_property(np, "card-detect-gpio", NULL);
if (!prop)
goto fail1;
@@ -301,7 +284,7 @@ static int electra_cf_probe(struct platform_device *ofdev)
cf->mem_phys, io.start, cf->irq);
cf->active = 1;
- electra_cf_timer((unsigned long)cf);
+ electra_cf_timer(&cf->timer);
return 0;
fail3:
@@ -309,22 +292,22 @@ fail3:
fail2:
release_mem_region(cf->mem_phys, cf->mem_size);
fail1:
- if (cf->irq != NO_IRQ)
+ if (cf->irq)
free_irq(cf->irq, cf);
- if (cf->io_virt)
- __iounmap_at(cf->io_virt, cf->io_size);
- if (cf->mem_base)
- iounmap(cf->mem_base);
- if (cf->gpio_base)
- iounmap(cf->gpio_base);
+ iounmap(cf->gpio_base);
+out_unmap_virt:
device_init_wakeup(&ofdev->dev, 0);
+ iounmap(cf->io_virt);
+out_unmap_mem:
+ iounmap(cf->mem_base);
+out_free_cf:
kfree(cf);
return status;
}
-static int electra_cf_remove(struct platform_device *ofdev)
+static void electra_cf_remove(struct platform_device *ofdev)
{
struct device *device = &ofdev->dev;
struct electra_cf_socket *cf;
@@ -334,17 +317,15 @@ static int electra_cf_remove(struct platform_device *ofdev)
cf->active = 0;
pcmcia_unregister_socket(&cf->socket);
free_irq(cf->irq, cf);
- del_timer_sync(&cf->timer);
+ timer_shutdown_sync(&cf->timer);
- __iounmap_at(cf->io_virt, cf->io_size);
+ iounmap(cf->io_virt);
iounmap(cf->mem_base);
iounmap(cf->gpio_base);
release_mem_region(cf->mem_phys, cf->mem_size);
release_region(cf->io_base, cf->io_size);
kfree(cf);
-
- return 0;
}
static const struct of_device_id electra_cf_match[] = {
@@ -357,8 +338,7 @@ MODULE_DEVICE_TABLE(of, electra_cf_match);
static struct platform_driver electra_cf_driver = {
.driver = {
- .name = (char *)driver_name,
- .owner = THIS_MODULE,
+ .name = driver_name,
.of_match_table = electra_cf_match,
},
.probe = electra_cf_probe,
@@ -368,5 +348,5 @@ static struct platform_driver electra_cf_driver = {
module_platform_driver(electra_cf_driver);
MODULE_LICENSE("GPL");
-MODULE_AUTHOR ("Olof Johansson <olof@lixom.net>");
+MODULE_AUTHOR("Olof Johansson <olof@lixom.net>");
MODULE_DESCRIPTION("PA Semi Electra CF driver");
generated by cgit (git 2.34.1) at 2025-12-25 22:37:47 +0000