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staging: ipack: swich to regular ioremap and friends.

Browse source 
Use the regular ioremap functions and their managed counterparts instead
of the ones provided through IPack callbacks.

Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jens Taprogge 2012-09-27 12:37:34 +02:00 committed by Greg Kroah-Hartman
parent 2ec678d132
commit 402228dbe3
2 changed files with 37 additions and 41 deletions
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70
drivers/staging/ipack/devices/ipoctal.c
View file

@ -53,6 +53,8 @@ struct ipoctal {
struct ipoctal_channel channel[NR_CHANNELS];
unsigned char write;
struct tty_driver *tty_drv;
u8 __iomem *mem_space;
u8 __iomem *int_space;
};
static int ipoctal_port_activate(struct tty_port *port, struct tty_struct *tty)
@ -252,8 +254,8 @@ static irqreturn_t ipoctal_irq_handler(void *arg)
ipoctal_irq_channel(&ipoctal->channel[i]);
/* Clear the IPack device interrupt */
readw(ipoctal->dev->int_space.address + ACK_INT_REQ0);
readw(ipoctal->dev->int_space.address + ACK_INT_REQ1);
readw(ipoctal->int_space + ACK_INT_REQ0);
readw(ipoctal->int_space + ACK_INT_REQ1);
return IRQ_HANDLED;
}
@ -266,48 +268,55 @@ static const struct tty_port_operations ipoctal_tty_port_ops = {
static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
unsigned int slot)
{
int res = 0;
int res;
int i;
struct tty_driver *tty;
char name[20];
struct ipoctal_channel *channel;
struct ipack_region *region;
void __iomem *addr;
union scc2698_channel __iomem *chan_regs;
union scc2698_block __iomem *block_regs;
ipoctal->board_id = ipoctal->dev->id_device;
res = ipoctal->dev->bus->ops->map_space(ipoctal->dev, 0,
IPACK_IO_SPACE);
if (res) {
region = &ipoctal->dev->region[IPACK_IO_SPACE];
addr = devm_ioremap_nocache(&ipoctal->dev->dev,
region->start, region->size);
if (!addr) {
dev_err(&ipoctal->dev->dev,
"Unable to map slot [%d:%d] IO space!\n",
bus_nr, slot);
return res;
return -EADDRNOTAVAIL;
}
/* Save the virtual address to access the registers easily */
chan_regs =
(union scc2698_channel __iomem *) addr;
block_regs =
(union scc2698_block __iomem *) addr;
res = ipoctal->dev->bus->ops->map_space(ipoctal->dev, 0,
IPACK_INT_SPACE);
if (res) {
region = &ipoctal->dev->region[IPACK_INT_SPACE];
ipoctal->int_space =
devm_ioremap_nocache(&ipoctal->dev->dev,
region->start, region->size);
if (!ipoctal->int_space) {
dev_err(&ipoctal->dev->dev,
"Unable to map slot [%d:%d] INT space!\n",
bus_nr, slot);
goto out_unregister_io_space;
return -EADDRNOTAVAIL;
}
res = ipoctal->dev->bus->ops->map_space(ipoctal->dev,
0x8000, IPACK_MEM_SPACE);
if (res) {
region = &ipoctal->dev->region[IPACK_MEM_SPACE];
ipoctal->mem_space =
devm_ioremap_nocache(&ipoctal->dev->dev,
region->start, 0x8000);
if (!addr) {
dev_err(&ipoctal->dev->dev,
"Unable to map slot [%d:%d] MEM space!\n",
bus_nr, slot);
goto out_unregister_int_space;
return -EADDRNOTAVAIL;
}
/* Save the virtual address to access the registers easily */
chan_regs =
(union scc2698_channel __iomem *) ipoctal->dev->io_space.address;
block_regs =
(union scc2698_block __iomem *) ipoctal->dev->io_space.address;
/* Disable RX and TX before touching anything */
for (i = 0; i < NR_CHANNELS ; i++) {
@ -350,17 +359,15 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
ipoctal->dev->bus->ops->request_irq(ipoctal->dev,
ipoctal_irq_handler, ipoctal);
/* Dummy write */
iowrite8(1, ipoctal->dev->mem_space.address + 1);
iowrite8(1, ipoctal->mem_space + 1);
/* Register the TTY device */
/* Each IP-OCTAL channel is a TTY port */
tty = alloc_tty_driver(NR_CHANNELS);
if (!tty) {
res = -ENOMEM;
goto out_unregister_slot_unmap;
}
if (!tty)
return -ENOMEM;
/* Fill struct tty_driver with ipoctal data */
tty->owner = THIS_MODULE;
@ -383,7 +390,7 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
if (res) {
dev_err(&ipoctal->dev->dev, "Can't register tty driver.\n");
put_tty_driver(tty);
goto out_unregister_slot_unmap;
return res;
}
/* Save struct tty_driver for use it when uninstalling the device */
@ -419,14 +426,6 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
}
return 0;
out_unregister_slot_unmap:
ipoctal->dev->bus->ops->unmap_space(ipoctal->dev, IPACK_MEM_SPACE);
out_unregister_int_space:
ipoctal->dev->bus->ops->unmap_space(ipoctal->dev, IPACK_INT_SPACE);
out_unregister_io_space:
ipoctal->dev->bus->ops->unmap_space(ipoctal->dev, IPACK_IO_SPACE);
return res;
}
static inline int ipoctal_copy_write_buffer(struct ipoctal_channel *channel,
@ -704,9 +703,6 @@ static void __ipoctal_remove(struct ipoctal *ipoctal)
tty_unregister_driver(ipoctal->tty_drv);
put_tty_driver(ipoctal->tty_drv);
ipoctal->dev->bus->ops->unmap_space(ipoctal->dev, IPACK_MEM_SPACE);
ipoctal->dev->bus->ops->unmap_space(ipoctal->dev, IPACK_INT_SPACE);
ipoctal->dev->bus->ops->unmap_space(ipoctal->dev, IPACK_IO_SPACE);
kfree(ipoctal);
}

8
drivers/staging/ipack/ipack.c
View file

@ -351,12 +351,12 @@ static int ipack_device_read_id(struct ipack_device *dev)
int i;
int ret = 0;
ret = dev->bus->ops->map_space(dev, 0, IPACK_ID_SPACE);
if (ret) {
idmem = ioremap(dev->region[IPACK_ID_SPACE].start,
dev->region[IPACK_ID_SPACE].size);
if (!idmem) {
dev_err(&dev->dev, "error mapping memory\n");
return ret;
}
idmem = dev->id_space.address;
/* Determine ID PROM Data Format. If we find the ids "IPAC" or "IPAH"
* we are dealing with a IndustryPack format 1 device. If we detect
@ -421,7 +421,7 @@ static int ipack_device_read_id(struct ipack_device *dev)
}
out:
dev->bus->ops->unmap_space(dev, IPACK_ID_SPACE);
iounmap(idmem);
return ret;
}