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pcmcia: use dev_pm_ops for class pcmcia_socket_class

Browse Source 
Instead of requiring PCMCIA socket drivers to call various functions
during their (bus) resume and suspend functions, register an own
dev_pm_ops for this class. This fixes several suspend/resume bugs
seen on db1xxx-ss, and probably on some other socket drivers, too.

With regard to the asymmetry with only _noirq suspend, but split up
resume, please see bug 14334 and commit 9905d1b411 .

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This commit is contained in:
Dominik Brodowski 2010-03-15 21:46:34 +01:00
parent e7176a37d4
commit d7646f7632
19 changed files with 66 additions and 288 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/pcmcia/at91_cf.c
View File

@ -361,7 +361,6 @@ static int at91_cf_suspend(struct platform_device *pdev, pm_message_t mesg)
struct at91_cf_socket *cf = platform_get_drvdata(pdev);
struct at91_cf_data *board = cf->board;
pcmcia_socket_dev_suspend(&pdev->dev);
if (device_may_wakeup(&pdev->dev)) {
enable_irq_wake(board->det_pin);
if (board->irq_pin)
@ -381,7 +380,6 @@ static int at91_cf_resume(struct platform_device *pdev)
disable_irq_wake(board->irq_pin);
}
pcmcia_socket_dev_resume(&pdev->dev);
return 0;
}

13
drivers/pcmcia/au1000_generic.c
View File

@ -510,17 +510,6 @@ static int au1x00_drv_pcmcia_probe(struct platform_device *dev)
return ret;
}
static int au1x00_drv_pcmcia_suspend(struct platform_device *dev,
pm_message_t state)
{
return pcmcia_socket_dev_suspend(&dev->dev);
}
static int au1x00_drv_pcmcia_resume(struct platform_device *dev)
{
return pcmcia_socket_dev_resume(&dev->dev);
}
static struct platform_driver au1x00_pcmcia_driver = {
.driver = {
.name = "au1x00-pcmcia",
@ -528,8 +517,6 @@ static struct platform_driver au1x00_pcmcia_driver = {
},
.probe = au1x00_drv_pcmcia_probe,
.remove = au1x00_drv_pcmcia_remove,
.suspend = au1x00_drv_pcmcia_suspend,
.resume = au1x00_drv_pcmcia_resume,
};

12
drivers/pcmcia/bfin_cf_pcmcia.c
View File

@ -300,16 +300,6 @@ static int __devexit bfin_cf_remove(struct platform_device *pdev)
return 0;
}
static int bfin_cf_suspend(struct platform_device *pdev, pm_message_t mesg)
{
return pcmcia_socket_dev_suspend(&pdev->dev);
}
static int bfin_cf_resume(struct platform_device *pdev)
{
return pcmcia_socket_dev_resume(&pdev->dev);
}
static struct platform_driver bfin_cf_driver = {
.driver = {
.name = (char *)driver_name,
@ -317,8 +307,6 @@ static struct platform_driver bfin_cf_driver = {
},
.probe = bfin_cf_probe,
.remove = __devexit_p(bfin_cf_remove),
.suspend = bfin_cf_suspend,
.resume = bfin_cf_resume,
};
static int __init bfin_cf_init(void)

124
drivers/pcmcia/cs.c
View File

@ -76,65 +76,6 @@ DECLARE_RWSEM(pcmcia_socket_list_rwsem);
EXPORT_SYMBOL(pcmcia_socket_list_rwsem);
/*
* Low-level PCMCIA socket drivers need to register with the PCCard
* core using pcmcia_register_socket.
*
* socket drivers are expected to use the following callbacks in their
* .drv struct:
* - pcmcia_socket_dev_suspend
* - pcmcia_socket_dev_resume
* These functions check for the appropriate struct pcmcia_soket arrays,
* and pass them to the low-level functions pcmcia_{suspend,resume}_socket
*/
static int socket_early_resume(struct pcmcia_socket *skt);
static int socket_late_resume(struct pcmcia_socket *skt);
static int socket_resume(struct pcmcia_socket *skt);
static int socket_suspend(struct pcmcia_socket *skt);
static void pcmcia_socket_dev_run(struct device *dev,
int (*cb)(struct pcmcia_socket *))
{
struct pcmcia_socket *socket;
down_read(&pcmcia_socket_list_rwsem);
list_for_each_entry(socket, &pcmcia_socket_list, socket_list) {
if (socket->dev.parent != dev)
continue;
mutex_lock(&socket->skt_mutex);
cb(socket);
mutex_unlock(&socket->skt_mutex);
}
up_read(&pcmcia_socket_list_rwsem);
}
int pcmcia_socket_dev_suspend(struct device *dev)
{
pcmcia_socket_dev_run(dev, socket_suspend);
return 0;
}
EXPORT_SYMBOL(pcmcia_socket_dev_suspend);
void pcmcia_socket_dev_early_resume(struct device *dev)
{
pcmcia_socket_dev_run(dev, socket_early_resume);
}
EXPORT_SYMBOL(pcmcia_socket_dev_early_resume);
void pcmcia_socket_dev_late_resume(struct device *dev)
{
pcmcia_socket_dev_run(dev, socket_late_resume);
}
EXPORT_SYMBOL(pcmcia_socket_dev_late_resume);
int pcmcia_socket_dev_resume(struct device *dev)
{
pcmcia_socket_dev_run(dev, socket_resume);
return 0;
}
EXPORT_SYMBOL(pcmcia_socket_dev_resume);
struct pcmcia_socket *pcmcia_get_socket(struct pcmcia_socket *skt)
{
struct device *dev = get_device(&skt->dev);
@ -578,12 +519,18 @@ static int socket_early_resume(struct pcmcia_socket *skt)
static int socket_late_resume(struct pcmcia_socket *skt)
{
int ret;
mutex_lock(&skt->ops_mutex);
skt->state &= ~SOCKET_SUSPEND;
mutex_unlock(&skt->ops_mutex);
if (!(skt->state & SOCKET_PRESENT))
return socket_insert(skt);
if (!(skt->state & SOCKET_PRESENT)) {
ret = socket_insert(skt);
if (ret == -ENODEV)
ret = 0;
return ret;
}
if (skt->resume_status) {
socket_shutdown(skt);
@ -919,11 +866,66 @@ static void pcmcia_release_socket_class(struct class *data)
}
#ifdef CONFIG_PM
static int __pcmcia_pm_op(struct device *dev,
int (*callback) (struct pcmcia_socket *skt))
{
struct pcmcia_socket *s = container_of(dev, struct pcmcia_socket, dev);
int ret;
mutex_lock(&s->skt_mutex);
ret = callback(s);
mutex_unlock(&s->skt_mutex);
return ret;
}
static int pcmcia_socket_dev_suspend_noirq(struct device *dev)
{
return __pcmcia_pm_op(dev, socket_suspend);
}
static int pcmcia_socket_dev_resume_noirq(struct device *dev)
{
return __pcmcia_pm_op(dev, socket_early_resume);
}
static int pcmcia_socket_dev_resume(struct device *dev)
{
return __pcmcia_pm_op(dev, socket_late_resume);
}
static const struct dev_pm_ops pcmcia_socket_pm_ops = {
/* dev_resume may be called with IRQs enabled */
SET_SYSTEM_SLEEP_PM_OPS(NULL,
pcmcia_socket_dev_resume)
/* late suspend must be called with IRQs disabled */
.suspend_noirq = pcmcia_socket_dev_suspend_noirq,
.freeze_noirq = pcmcia_socket_dev_suspend_noirq,
.poweroff_noirq = pcmcia_socket_dev_suspend_noirq,
/* early resume must be called with IRQs disabled */
.resume_noirq = pcmcia_socket_dev_resume_noirq,
.thaw_noirq = pcmcia_socket_dev_resume_noirq,
.restore_noirq = pcmcia_socket_dev_resume_noirq,
};
#define PCMCIA_SOCKET_CLASS_PM_OPS (&pcmcia_socket_pm_ops)
#else /* CONFIG_PM */
#define PCMCIA_SOCKET_CLASS_PM_OPS NULL
#endif /* CONFIG_PM */
struct class pcmcia_socket_class = {
.name = "pcmcia_socket",
.dev_uevent = pcmcia_socket_uevent,
.dev_release = pcmcia_release_socket,
.class_release = pcmcia_release_socket_class,
.pm = PCMCIA_SOCKET_CLASS_PM_OPS,
};
EXPORT_SYMBOL(pcmcia_socket_class);

27
drivers/pcmcia/db1xxx_ss.c
View File

@ -558,37 +558,10 @@ static int __devexit db1x_pcmcia_socket_remove(struct platform_device *pdev)
return 0;
}
#ifdef CONFIG_PM
static int db1x_pcmcia_suspend(struct device *dev)
{
return pcmcia_socket_dev_suspend(dev);
}
static int db1x_pcmcia_resume(struct device *dev)
{
return pcmcia_socket_dev_resume(dev);
}
static struct dev_pm_ops db1x_pcmcia_pmops = {
.resume = db1x_pcmcia_resume,
.suspend = db1x_pcmcia_suspend,
.thaw = db1x_pcmcia_resume,
.freeze = db1x_pcmcia_suspend,
};
#define DB1XXX_SS_PMOPS &db1x_pcmcia_pmops
#else
#define DB1XXX_SS_PMOPS NULL
#endif
static struct platform_driver db1x_pcmcia_socket_driver = {
.driver = {
.name = "db1xxx_pcmcia",
.owner = THIS_MODULE,
.pm = DB1XXX_SS_PMOPS
},
.probe = db1x_pcmcia_socket_probe,
.remove = __devexit_p(db1x_pcmcia_socket_remove),

16
drivers/pcmcia/i82092.c
View File

@ -39,27 +39,11 @@ static struct pci_device_id i82092aa_pci_ids[] = {
};
MODULE_DEVICE_TABLE(pci, i82092aa_pci_ids);
#ifdef CONFIG_PM
static int i82092aa_socket_suspend (struct pci_dev *dev, pm_message_t state)
{
return pcmcia_socket_dev_suspend(&dev->dev);
}
static int i82092aa_socket_resume (struct pci_dev *dev)
{
return pcmcia_socket_dev_resume(&dev->dev);
}
#endif
static struct pci_driver i82092aa_pci_driver = {
.name = "i82092aa",
.id_table = i82092aa_pci_ids,
.probe = i82092aa_pci_probe,
.remove = __devexit_p(i82092aa_pci_remove),
#ifdef CONFIG_PM
.suspend = i82092aa_socket_suspend,
.resume = i82092aa_socket_resume,
#endif
};

11
drivers/pcmcia/i82365.c
View File

@ -1223,16 +1223,7 @@ static int pcic_init(struct pcmcia_socket *s)
return 0;
}
static int i82365_drv_pcmcia_suspend(struct platform_device *dev,
pm_message_t state)
{
return pcmcia_socket_dev_suspend(&dev->dev);
}
static int i82365_drv_pcmcia_resume(struct platform_device *dev)
{
return pcmcia_socket_dev_resume(&dev->dev);
}
static struct pccard_operations pcic_operations = {
.init = pcic_init,
.get_status = pcic_get_status,
@ -1248,8 +1239,6 @@ static struct platform_driver i82365_driver = {
.name = "i82365",
.owner = THIS_MODULE,
},
.suspend = i82365_drv_pcmcia_suspend,
.resume = i82365_drv_pcmcia_resume,
};
static struct platform_device *i82365_device;

11
drivers/pcmcia/m32r_cfc.c
View File

@ -685,16 +685,7 @@ static struct pccard_operations pcc_operations = {
.set_mem_map = pcc_set_mem_map,
};
static int cfc_drv_pcmcia_suspend(struct platform_device *dev,
pm_message_t state)
{
return pcmcia_socket_dev_suspend(&dev->dev);
}
static int cfc_drv_pcmcia_resume(struct platform_device *dev)
{
return pcmcia_socket_dev_resume(&dev->dev);
}
/*====================================================================*/
static struct platform_driver pcc_driver = {
@ -702,8 +693,6 @@ static struct platform_driver pcc_driver = {
.name = "cfc",
.owner = THIS_MODULE,
},
.suspend = cfc_drv_pcmcia_suspend,
.resume = cfc_drv_pcmcia_resume,
};
static struct platform_device pcc_device = {

12
drivers/pcmcia/m32r_pcc.c
View File

@ -663,16 +663,6 @@ static struct pccard_operations pcc_operations = {
.set_mem_map = pcc_set_mem_map,
};
static int pcc_drv_pcmcia_suspend(struct platform_device *dev,
pm_message_t state)
{
return pcmcia_socket_dev_suspend(&dev->dev);
}
static int pcc_drv_pcmcia_resume(struct platform_device *dev)
{
return pcmcia_socket_dev_resume(&dev->dev);
}
/*====================================================================*/
static struct platform_driver pcc_driver = {
@ -680,8 +670,6 @@ static struct platform_driver pcc_driver = {
.name = "pcc",
.owner = THIS_MODULE,
},
.suspend = pcc_drv_pcmcia_suspend,
.resume = pcc_drv_pcmcia_resume,
};
static struct platform_device pcc_device = {

17
drivers/pcmcia/m8xx_pcmcia.c
View File

@ -1288,21 +1288,6 @@ static int m8xx_remove(struct of_device *ofdev)
return 0;
}
#ifdef CONFIG_PM
static int m8xx_suspend(struct platform_device *pdev, pm_message_t state)
{
return pcmcia_socket_dev_suspend(&pdev->dev);
}
static int m8xx_resume(struct platform_device *pdev)
{
return pcmcia_socket_dev_resume(&pdev->dev);
}
#else
#define m8xx_suspend NULL
#define m8xx_resume NULL
#endif
static const struct of_device_id m8xx_pcmcia_match[] = {
{
.type = "pcmcia",
@ -1318,8 +1303,6 @@ static struct of_platform_driver m8xx_pcmcia_driver = {
.match_table = m8xx_pcmcia_match,
.probe = m8xx_probe,
.remove = m8xx_remove,
.suspend = m8xx_suspend,
.resume = m8xx_resume,
};
static int __init m8xx_init(void)

12
drivers/pcmcia/omap_cf.c
View File

@ -330,24 +330,12 @@ static int __exit omap_cf_remove(struct platform_device *pdev)
return 0;
}
static int omap_cf_suspend(struct platform_device *pdev, pm_message_t mesg)
{
return pcmcia_socket_dev_suspend(&pdev->dev);
}
static int omap_cf_resume(struct platform_device *pdev)
{
return pcmcia_socket_dev_resume(&pdev->dev);
}
static struct platform_driver omap_cf_driver = {
.driver = {
.name = (char *) driver_name,
.owner = THIS_MODULE,
},
.remove = __exit_p(omap_cf_remove),
.suspend = omap_cf_suspend,
.resume = omap_cf_resume,
};
static int __init omap_cf_init(void)

16
drivers/pcmcia/pd6729.c
View File

@ -764,18 +764,6 @@ static void __devexit pd6729_pci_remove(struct pci_dev *dev)
kfree(socket);
}
#ifdef CONFIG_PM
static int pd6729_socket_suspend(struct pci_dev *dev, pm_message_t state)
{
return pcmcia_socket_dev_suspend(&dev->dev);
}
static int pd6729_socket_resume(struct pci_dev *dev)
{
return pcmcia_socket_dev_resume(&dev->dev);
}
#endif
static struct pci_device_id pd6729_pci_ids[] = {
{
.vendor = PCI_VENDOR_ID_CIRRUS,
@ -792,10 +780,6 @@ static struct pci_driver pd6729_pci_driver = {
.id_table = pd6729_pci_ids,
.probe = pd6729_pci_probe,
.remove = __devexit_p(pd6729_pci_remove),
#ifdef CONFIG_PM
.suspend = pd6729_socket_suspend,
.resume = pd6729_socket_resume,
#endif
};
static int pd6729_module_init(void)

8
drivers/pcmcia/pxa2xx_base.c
View File

@ -325,19 +325,13 @@ static int pxa2xx_drv_pcmcia_remove(struct platform_device *dev)
return 0;
}
static int pxa2xx_drv_pcmcia_suspend(struct device *dev)
{
return pcmcia_socket_dev_suspend(dev);
}
static int pxa2xx_drv_pcmcia_resume(struct device *dev)
{
pxa2xx_configure_sockets(dev);
return pcmcia_socket_dev_resume(dev);
return 0;
}
static const struct dev_pm_ops pxa2xx_drv_pcmcia_pm_ops = {
.suspend = pxa2xx_drv_pcmcia_suspend,
.resume = pxa2xx_drv_pcmcia_resume,
};

13
drivers/pcmcia/sa1100_generic.c
View File

@ -95,17 +95,6 @@ static int sa11x0_drv_pcmcia_remove(struct platform_device *dev)
return 0;
}
static int sa11x0_drv_pcmcia_suspend(struct platform_device *dev,
pm_message_t state)
{
return pcmcia_socket_dev_suspend(&dev->dev);
}
static int sa11x0_drv_pcmcia_resume(struct platform_device *dev)
{
return pcmcia_socket_dev_resume(&dev->dev);
}
static struct platform_driver sa11x0_pcmcia_driver = {
.driver = {
.name = "sa11x0-pcmcia",
@ -113,8 +102,6 @@ static struct platform_driver sa11x0_pcmcia_driver = {
},
.probe = sa11x0_drv_pcmcia_probe,
.remove = sa11x0_drv_pcmcia_remove,
.suspend = sa11x0_drv_pcmcia_suspend,
.resume = sa11x0_drv_pcmcia_resume,
};
/* sa11x0_pcmcia_init()

12
drivers/pcmcia/sa1111_generic.c
View File

@ -213,16 +213,6 @@ static int __devexit pcmcia_remove(struct sa1111_dev *dev)
return 0;
}
static int pcmcia_suspend(struct sa1111_dev *dev, pm_message_t state)
{
return pcmcia_socket_dev_suspend(&dev->dev);
}
static int pcmcia_resume(struct sa1111_dev *dev)
{
return pcmcia_socket_dev_resume(&dev->dev);
}
static struct sa1111_driver pcmcia_driver = {
.drv = {
.name = "sa1111-pcmcia",
@ -230,8 +220,6 @@ static struct sa1111_driver pcmcia_driver = {
.devid = SA1111_DEVID_PCMCIA,
.probe = pcmcia_probe,
.remove = __devexit_p(pcmcia_remove),
.suspend = pcmcia_suspend,
.resume = pcmcia_resume,
};
static int __init sa1111_drv_pcmcia_init(void)

12
drivers/pcmcia/tcic.c
View File

@ -348,16 +348,6 @@ static int __init get_tcic_id(void)
return id;
}
static int tcic_drv_pcmcia_suspend(struct platform_device *dev,
pm_message_t state)
{
return pcmcia_socket_dev_suspend(&dev->dev);
}
static int tcic_drv_pcmcia_resume(struct platform_device *dev)
{
return pcmcia_socket_dev_resume(&dev->dev);
}
/*====================================================================*/
static struct platform_driver tcic_driver = {
@ -365,8 +355,6 @@ static struct platform_driver tcic_driver = {
.name = "tcic-pcmcia",
.owner = THIS_MODULE,
},
.suspend = tcic_drv_pcmcia_suspend,
.resume = tcic_drv_pcmcia_resume,
};
static struct platform_device tcic_device = {

13
drivers/pcmcia/vrc4171_card.c
View File

@ -705,24 +705,11 @@ static int __devinit vrc4171_card_setup(char *options)
__setup("vrc4171_card=", vrc4171_card_setup);
static int vrc4171_card_suspend(struct platform_device *dev,
pm_message_t state)
{
return pcmcia_socket_dev_suspend(&dev->dev);
}
static int vrc4171_card_resume(struct platform_device *dev)
{
return pcmcia_socket_dev_resume(&dev->dev);
}
static struct platform_driver vrc4171_card_driver = {
.driver = {
.name = vrc4171_card_name,
.owner = THIS_MODULE,
},
.suspend = vrc4171_card_suspend,
.resume = vrc4171_card_resume,
};
static int __devinit vrc4171_card_init(void)

17
drivers/pcmcia/yenta_socket.c
View File

@ -1290,12 +1290,9 @@ static int yenta_dev_suspend_noirq(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct yenta_socket *socket = pci_get_drvdata(pdev);
int ret;
ret = pcmcia_socket_dev_suspend(dev);
if (!socket)
return ret;
return 0;
if (socket->type && socket->type->save_state)
socket->type->save_state(socket);
@ -1312,7 +1309,7 @@ static int yenta_dev_suspend_noirq(struct device *dev)
*/
/* pci_set_power_state(dev, 3); */
return ret;
return 0;
}
static int yenta_dev_resume_noirq(struct device *dev)
@ -1336,26 +1333,16 @@ static int yenta_dev_resume_noirq(struct device *dev)
if (socket->type && socket->type->restore_state)
socket->type->restore_state(socket);
pcmcia_socket_dev_early_resume(dev);
return 0;
}
static int yenta_dev_resume(struct device *dev)
{
pcmcia_socket_dev_late_resume(dev);
return 0;
}
static const struct dev_pm_ops yenta_pm_ops = {
.suspend_noirq = yenta_dev_suspend_noirq,
.resume_noirq = yenta_dev_resume_noirq,
.resume = yenta_dev_resume,
.freeze_noirq = yenta_dev_suspend_noirq,
.thaw_noirq = yenta_dev_resume_noirq,
.thaw = yenta_dev_resume,
.poweroff_noirq = yenta_dev_suspend_noirq,
.restore_noirq = yenta_dev_resume_noirq,
.restore = yenta_dev_resume,
};
#define YENTA_PM_OPS (&yenta_pm_ops)

6
include/pcmcia/ss.h
View File

@ -277,12 +277,6 @@ extern struct pccard_resource_ops pccard_nonstatic_ops;
#endif
/* socket drivers are expected to use these callbacks in their .drv struct */
extern int pcmcia_socket_dev_suspend(struct device *dev);
extern void pcmcia_socket_dev_early_resume(struct device *dev);
extern void pcmcia_socket_dev_late_resume(struct device *dev);
extern int pcmcia_socket_dev_resume(struct device *dev);
/* socket drivers use this callback in their IRQ handler */
extern void pcmcia_parse_events(struct pcmcia_socket *socket,
unsigned int events);