forked from Minki/linux
libata: pata_platform: make probe and remove functions device type neutral
Split pata_platform_{probe,remove} into two pieces:
1. pata_platform_{probe,remove} -- platform_device-dependant bits;
2. __ptata_platform_{probe,remove} -- device type neutral bits.
This is done to not duplicate code for the OF-platform driver.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Anton Vorontsov
Olof Johansson
parent
bdddec454c
commit
cf03613e96
@ -93,14 +93,9 @@ static struct ata_port_operations pata_platform_port_ops = {
|
||||
};
|
||||
|
||||
static void pata_platform_setup_port(struct ata_ioports *ioaddr,
|
||||
struct pata_platform_info *info)
|
||||
unsigned int shift)
|
||||
{
|
||||
unsigned int shift = 0;
|
||||
|
||||
/* Fixup the port shift for platforms that need it */
|
||||
if (info && info->ioport_shift)
|
||||
shift = info->ioport_shift;
|
||||
|
||||
ioaddr->data_addr = ioaddr->cmd_addr + (ATA_REG_DATA << shift);
|
||||
ioaddr->error_addr = ioaddr->cmd_addr + (ATA_REG_ERR << shift);
|
||||
ioaddr->feature_addr = ioaddr->cmd_addr + (ATA_REG_FEATURE << shift);
|
||||
@ -114,8 +109,13 @@ static void pata_platform_setup_port(struct ata_ioports *ioaddr,
|
||||
}
|
||||
|
||||
/**
|
||||
* pata_platform_probe - attach a platform interface
|
||||
* @pdev: platform device
|
||||
* __pata_platform_probe - attach a platform interface
|
||||
* @dev: device
|
||||
* @io_res: Resource representing I/O base
|
||||
* @ctl_res: Resource representing CTL base
|
||||
* @irq_res: Resource representing IRQ and its flags
|
||||
* @ioport_shift: I/O port shift
|
||||
* @__pio_mask: PIO mask
|
||||
*
|
||||
* Register a platform bus IDE interface. Such interfaces are PIO and we
|
||||
* assume do not support IRQ sharing.
|
||||
@ -135,14 +135,109 @@ static void pata_platform_setup_port(struct ata_ioports *ioaddr,
|
||||
*
|
||||
* If no IRQ resource is present, PIO polling mode is used instead.
|
||||
*/
|
||||
static int __devinit pata_platform_probe(struct platform_device *pdev)
|
||||
int __devinit __pata_platform_probe(struct device *dev,
|
||||
struct resource *io_res,
|
||||
struct resource *ctl_res,
|
||||
struct resource *irq_res,
|
||||
unsigned int ioport_shift,
|
||||
int __pio_mask)
|
||||
{
|
||||
struct resource *io_res, *ctl_res;
|
||||
struct ata_host *host;
|
||||
struct ata_port *ap;
|
||||
struct pata_platform_info *pp_info;
|
||||
unsigned int mmio;
|
||||
int irq;
|
||||
int irq = 0;
|
||||
int irq_flags = 0;
|
||||
|
||||
/*
|
||||
* Check for MMIO
|
||||
*/
|
||||
mmio = (( io_res->flags == IORESOURCE_MEM) &&
|
||||
(ctl_res->flags == IORESOURCE_MEM));
|
||||
|
||||
/*
|
||||
* And the IRQ
|
||||
*/
|
||||
if (irq_res && irq_res->start > 0) {
|
||||
irq = irq_res->start;
|
||||
irq_flags = irq_res->flags;
|
||||
}
|
||||
|
||||
/*
|
||||
* Now that that's out of the way, wire up the port..
|
||||
*/
|
||||
host = ata_host_alloc(dev, 1);
|
||||
if (!host)
|
||||
return -ENOMEM;
|
||||
ap = host->ports[0];
|
||||
|
||||
ap->ops = &pata_platform_port_ops;
|
||||
ap->pio_mask = __pio_mask;
|
||||
ap->flags |= ATA_FLAG_SLAVE_POSS;
|
||||
|
||||
/*
|
||||
* Use polling mode if there's no IRQ
|
||||
*/
|
||||
if (!irq) {
|
||||
ap->flags |= ATA_FLAG_PIO_POLLING;
|
||||
ata_port_desc(ap, "no IRQ, using PIO polling");
|
||||
}
|
||||
|
||||
/*
|
||||
* Handle the MMIO case
|
||||
*/
|
||||
if (mmio) {
|
||||
ap->ioaddr.cmd_addr = devm_ioremap(dev, io_res->start,
|
||||
io_res->end - io_res->start + 1);
|
||||
ap->ioaddr.ctl_addr = devm_ioremap(dev, ctl_res->start,
|
||||
ctl_res->end - ctl_res->start + 1);
|
||||
} else {
|
||||
ap->ioaddr.cmd_addr = devm_ioport_map(dev, io_res->start,
|
||||
io_res->end - io_res->start + 1);
|
||||
ap->ioaddr.ctl_addr = devm_ioport_map(dev, ctl_res->start,
|
||||
ctl_res->end - ctl_res->start + 1);
|
||||
}
|
||||
if (!ap->ioaddr.cmd_addr || !ap->ioaddr.ctl_addr) {
|
||||
dev_err(dev, "failed to map IO/CTL base\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
ap->ioaddr.altstatus_addr = ap->ioaddr.ctl_addr;
|
||||
|
||||
pata_platform_setup_port(&ap->ioaddr, ioport_shift);
|
||||
|
||||
ata_port_desc(ap, "%s cmd 0x%llx ctl 0x%llx", mmio ? "mmio" : "ioport",
|
||||
(unsigned long long)io_res->start,
|
||||
(unsigned long long)ctl_res->start);
|
||||
|
||||
/* activate */
|
||||
return ata_host_activate(host, irq, irq ? ata_interrupt : NULL,
|
||||
irq_flags, &pata_platform_sht);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(__pata_platform_probe);
|
||||
|
||||
/**
|
||||
* __pata_platform_remove - unplug a platform interface
|
||||
* @dev: device
|
||||
*
|
||||
* A platform bus ATA device has been unplugged. Perform the needed
|
||||
* cleanup. Also called on module unload for any active devices.
|
||||
*/
|
||||
int __devexit __pata_platform_remove(struct device *dev)
|
||||
{
|
||||
struct ata_host *host = dev_get_drvdata(dev);
|
||||
|
||||
ata_host_detach(host);
|
||||
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(__pata_platform_remove);
|
||||
|
||||
static int __devinit pata_platform_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct resource *io_res;
|
||||
struct resource *ctl_res;
|
||||
struct resource *irq_res;
|
||||
struct pata_platform_info *pp_info = pdev->dev.platform_data;
|
||||
|
||||
/*
|
||||
* Simple resource validation ..
|
||||
@ -172,88 +267,21 @@ static int __devinit pata_platform_probe(struct platform_device *pdev)
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/*
|
||||
* Check for MMIO
|
||||
*/
|
||||
mmio = (( io_res->flags == IORESOURCE_MEM) &&
|
||||
(ctl_res->flags == IORESOURCE_MEM));
|
||||
|
||||
/*
|
||||
* And the IRQ
|
||||
*/
|
||||
irq = platform_get_irq(pdev, 0);
|
||||
if (irq < 0)
|
||||
irq = 0; /* no irq */
|
||||
irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
|
||||
if (irq_res)
|
||||
irq_res->flags = pp_info ? pp_info->irq_flags : 0;
|
||||
|
||||
/*
|
||||
* Now that that's out of the way, wire up the port..
|
||||
*/
|
||||
host = ata_host_alloc(&pdev->dev, 1);
|
||||
if (!host)
|
||||
return -ENOMEM;
|
||||
ap = host->ports[0];
|
||||
|
||||
ap->ops = &pata_platform_port_ops;
|
||||
ap->pio_mask = pio_mask;
|
||||
ap->flags |= ATA_FLAG_SLAVE_POSS;
|
||||
|
||||
/*
|
||||
* Use polling mode if there's no IRQ
|
||||
*/
|
||||
if (!irq) {
|
||||
ap->flags |= ATA_FLAG_PIO_POLLING;
|
||||
ata_port_desc(ap, "no IRQ, using PIO polling");
|
||||
}
|
||||
|
||||
/*
|
||||
* Handle the MMIO case
|
||||
*/
|
||||
if (mmio) {
|
||||
ap->ioaddr.cmd_addr = devm_ioremap(&pdev->dev, io_res->start,
|
||||
io_res->end - io_res->start + 1);
|
||||
ap->ioaddr.ctl_addr = devm_ioremap(&pdev->dev, ctl_res->start,
|
||||
ctl_res->end - ctl_res->start + 1);
|
||||
} else {
|
||||
ap->ioaddr.cmd_addr = devm_ioport_map(&pdev->dev, io_res->start,
|
||||
io_res->end - io_res->start + 1);
|
||||
ap->ioaddr.ctl_addr = devm_ioport_map(&pdev->dev, ctl_res->start,
|
||||
ctl_res->end - ctl_res->start + 1);
|
||||
}
|
||||
if (!ap->ioaddr.cmd_addr || !ap->ioaddr.ctl_addr) {
|
||||
dev_err(&pdev->dev, "failed to map IO/CTL base\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
ap->ioaddr.altstatus_addr = ap->ioaddr.ctl_addr;
|
||||
|
||||
pp_info = pdev->dev.platform_data;
|
||||
pata_platform_setup_port(&ap->ioaddr, pp_info);
|
||||
|
||||
ata_port_desc(ap, "%s cmd 0x%llx ctl 0x%llx", mmio ? "mmio" : "ioport",
|
||||
(unsigned long long)io_res->start,
|
||||
(unsigned long long)ctl_res->start);
|
||||
|
||||
/* activate */
|
||||
return ata_host_activate(host, irq, irq ? ata_interrupt : NULL,
|
||||
pp_info ? pp_info->irq_flags : 0,
|
||||
&pata_platform_sht);
|
||||
return __pata_platform_probe(&pdev->dev, io_res, ctl_res, irq_res,
|
||||
pp_info ? pp_info->ioport_shift : 0,
|
||||
pio_mask);
|
||||
}
|
||||
|
||||
/**
|
||||
* pata_platform_remove - unplug a platform interface
|
||||
* @pdev: platform device
|
||||
*
|
||||
* A platform bus ATA device has been unplugged. Perform the needed
|
||||
* cleanup. Also called on module unload for any active devices.
|
||||
*/
|
||||
static int __devexit pata_platform_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
struct ata_host *host = dev_get_drvdata(dev);
|
||||
|
||||
ata_host_detach(host);
|
||||
|
||||
return 0;
|
||||
return __pata_platform_remove(&pdev->dev);
|
||||
}
|
||||
|
||||
static struct platform_driver pata_platform_driver = {
|
||||
|
||||
@ -15,4 +15,13 @@ struct pata_platform_info {
|
||||
unsigned int irq_flags;
|
||||
};
|
||||
|
||||
extern int __devinit __pata_platform_probe(struct device *dev,
|
||||
struct resource *io_res,
|
||||
struct resource *ctl_res,
|
||||
struct resource *irq_res,
|
||||
unsigned int ioport_shift,
|
||||
int __pio_mask);
|
||||
|
||||
extern int __devexit __pata_platform_remove(struct device *dev);
|
||||
|
||||
#endif /* __LINUX_PATA_PLATFORM_H */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user