* information.
*/
+#include <linux/string.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/bootmem.h>
#include <linux/err.h>
#include <linux/slab.h>
+#include <linux/pm_runtime.h>
#include "base.h"
int platform_device_add_data(struct platform_device *pdev, const void *data,
size_t size)
{
- void *d;
+ void *d = kmemdup(data, size, GFP_KERNEL);
- d = kmalloc(size, GFP_KERNEL);
if (d) {
- memcpy(d, data, size);
pdev->dev.platform_data = d;
+ return 0;
}
- return d ? 0 : -ENOMEM;
+ return -ENOMEM;
}
EXPORT_SYMBOL_GPL(platform_device_add_data);
if (pdev->id != -1)
dev_set_name(&pdev->dev, "%s.%d", pdev->name, pdev->id);
else
- dev_set_name(&pdev->dev, pdev->name);
+ dev_set_name(&pdev->dev, "%s", pdev->name);
for (i = 0; i < pdev->num_resources; i++) {
struct resource *p, *r = &pdev->resource[i];
drv->driver.remove = platform_drv_remove;
if (drv->shutdown)
drv->driver.shutdown = platform_drv_shutdown;
- if (drv->suspend || drv->resume)
- pr_warning("Platform driver '%s' needs updating - please use "
- "dev_pm_ops\n", drv->driver.name);
return driver_register(&drv->driver);
}
{
int retval, code;
+ /* make sure driver won't have bind/unbind attributes */
+ drv->driver.suppress_bind_attrs = true;
+
/* temporary section violation during probe() */
drv->probe = probe;
retval = code = platform_driver_register(drv);
- /* Fixup that section violation, being paranoid about code scanning
+ /*
+ * Fixup that section violation, being paranoid about code scanning
* the list of drivers in order to probe new devices. Check to see
* if the probe was successful, and make sure any forced probes of
* new devices fail.
return ret;
}
-static int platform_legacy_suspend_late(struct device *dev, pm_message_t mesg)
-{
- struct platform_driver *pdrv = to_platform_driver(dev->driver);
- struct platform_device *pdev = to_platform_device(dev);
- int ret = 0;
-
- if (dev->driver && pdrv->suspend_late)
- ret = pdrv->suspend_late(pdev, mesg);
-
- return ret;
-}
-
-static int platform_legacy_resume_early(struct device *dev)
-{
- struct platform_driver *pdrv = to_platform_driver(dev->driver);
- struct platform_device *pdev = to_platform_device(dev);
- int ret = 0;
-
- if (dev->driver && pdrv->resume_early)
- ret = pdrv->resume_early(pdev);
-
- return ret;
-}
-
static int platform_legacy_resume(struct device *dev)
{
struct platform_driver *pdrv = to_platform_driver(dev->driver);
drv->pm->complete(dev);
}
+#else /* !CONFIG_PM_SLEEP */
+
+#define platform_pm_prepare NULL
+#define platform_pm_complete NULL
+
+#endif /* !CONFIG_PM_SLEEP */
+
#ifdef CONFIG_SUSPEND
static int platform_pm_suspend(struct device *dev)
if (drv->pm) {
if (drv->pm->suspend_noirq)
ret = drv->pm->suspend_noirq(dev);
- } else {
- ret = platform_legacy_suspend_late(dev, PMSG_SUSPEND);
}
return ret;
if (drv->pm) {
if (drv->pm->resume_noirq)
ret = drv->pm->resume_noirq(dev);
- } else {
- ret = platform_legacy_resume_early(dev);
}
return ret;
if (drv->pm) {
if (drv->pm->freeze_noirq)
ret = drv->pm->freeze_noirq(dev);
- } else {
- ret = platform_legacy_suspend_late(dev, PMSG_FREEZE);
}
return ret;
if (drv->pm) {
if (drv->pm->thaw_noirq)
ret = drv->pm->thaw_noirq(dev);
- } else {
- ret = platform_legacy_resume_early(dev);
}
return ret;
if (drv->pm) {
if (drv->pm->poweroff_noirq)
ret = drv->pm->poweroff_noirq(dev);
- } else {
- ret = platform_legacy_suspend_late(dev, PMSG_HIBERNATE);
}
return ret;
if (drv->pm) {
if (drv->pm->restore_noirq)
ret = drv->pm->restore_noirq(dev);
- } else {
- ret = platform_legacy_resume_early(dev);
}
return ret;
#endif /* !CONFIG_HIBERNATION */
-static struct dev_pm_ops platform_dev_pm_ops = {
+#ifdef CONFIG_PM_RUNTIME
+
+int __weak platform_pm_runtime_suspend(struct device *dev)
+{
+ return -ENOSYS;
+};
+
+int __weak platform_pm_runtime_resume(struct device *dev)
+{
+ return -ENOSYS;
+};
+
+int __weak platform_pm_runtime_idle(struct device *dev)
+{
+ return -ENOSYS;
+};
+
+#else /* !CONFIG_PM_RUNTIME */
+
+#define platform_pm_runtime_suspend NULL
+#define platform_pm_runtime_resume NULL
+#define platform_pm_runtime_idle NULL
+
+#endif /* !CONFIG_PM_RUNTIME */
+
+static const struct dev_pm_ops platform_dev_pm_ops = {
.prepare = platform_pm_prepare,
.complete = platform_pm_complete,
.suspend = platform_pm_suspend,
.thaw_noirq = platform_pm_thaw_noirq,
.poweroff_noirq = platform_pm_poweroff_noirq,
.restore_noirq = platform_pm_restore_noirq,
+ .runtime_suspend = platform_pm_runtime_suspend,
+ .runtime_resume = platform_pm_runtime_resume,
+ .runtime_idle = platform_pm_runtime_idle,
};
-#define PLATFORM_PM_OPS_PTR (&platform_dev_pm_ops)
-
-#else /* !CONFIG_PM_SLEEP */
-
-#define PLATFORM_PM_OPS_PTR NULL
-
-#endif /* !CONFIG_PM_SLEEP */
-
struct bus_type platform_bus_type = {
.name = "platform",
.dev_attrs = platform_dev_attrs,
.match = platform_match,
.uevent = platform_uevent,
- .pm = PLATFORM_PM_OPS_PTR,
+ .pm = &platform_dev_pm_ops,
};
EXPORT_SYMBOL_GPL(platform_bus_type);
int __init early_platform_driver_register(struct early_platform_driver *epdrv,
char *buf)
{
- unsigned long index;
+ char *tmp;
int n;
/* Simply add the driver to the end of the global list.
if (buf && !strncmp(buf, epdrv->pdrv->driver.name, n)) {
list_move(&epdrv->list, &early_platform_driver_list);
- if (!strcmp(buf, epdrv->pdrv->driver.name))
+ /* Allow passing parameters after device name */
+ if (buf[n] == '\0' || buf[n] == ',')
epdrv->requested_id = -1;
- else if (buf[n] == '.' && strict_strtoul(&buf[n + 1], 10,
- &index) == 0)
- epdrv->requested_id = index;
- else
- epdrv->requested_id = EARLY_PLATFORM_ID_ERROR;
+ else {
+ epdrv->requested_id = simple_strtoul(&buf[n + 1],
+ &tmp, 10);
+
+ if (buf[n] != '.' || (tmp == &buf[n + 1])) {
+ epdrv->requested_id = EARLY_PLATFORM_ID_ERROR;
+ n = 0;
+ } else
+ n += strcspn(&buf[n + 1], ",") + 1;
+ }
+
+ if (buf[n] == ',')
+ n++;
+
+ if (epdrv->bufsize) {
+ memcpy(epdrv->buffer, &buf[n],
+ min_t(int, epdrv->bufsize, strlen(&buf[n]) + 1));
+ epdrv->buffer[epdrv->bufsize - 1] = '\0';
+ }
}
return 0;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff