void omap_pm_set_max_dev_wakeup_lat(struct device *dev, long t)
{
struct omapdev *odev;
struct powerdomain *pwrdm_dev;
struct platform_device *pdev;
char *lat_res_name;
if (!dev || t < -1) {
WARN_ON(1);
return;
};
/* Look for the devices Power Domain */
/*
* WARNING! If device is not a platform device, container_of will
* return a pointer to unknown memory!
* TODO: Either change omap-pm interface to support only platform
* devices, or change the underlying omapdev implementation to
* support normal devices.
*/
pdev = container_of(dev, struct platform_device, dev);
/* Try to catch non platform devices. */
if (pdev->name == NULL) {
printk(KERN_ERR "OMAP-PM: Error: platform device not valid\n");
return;
}
odev = omapdev_find_pdev(pdev);
if (odev) {
pwrdm_dev = omapdev_get_pwrdm(odev);
} else {
printk(KERN_ERR "OMAP-PM: Error: Could not find omapdev "
"for %s\n", pdev->name);
return;
}
lat_res_name = kmalloc(MAX_LATENCY_RES_NAME, GFP_KERNEL);
if (!lat_res_name) {
printk(KERN_ERR "OMAP-PM: FATAL ERROR: kmalloc failed\n");
return;
}
get_lat_res_name(pwrdm_dev->name, &lat_res_name, MAX_LATENCY_RES_NAME);
if (t == -1) {
pr_debug("OMAP PM: remove max device latency constraint: "
"dev %s\n", dev_name(dev));
resource_release(lat_res_name, dev);
} else {
pr_debug("OMAP PM: add max device latency constraint: "
"dev %s, t = %ld usec\n", dev_name(dev), t);
resource_request(lat_res_name, dev, t);
}
kfree(lat_res_name);
return;
}
int get_last_off_on_transaction_id(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct omapdev *odev = omapdev_find_pdev(pdev);
struct powerdomain *pwrdm;
if (odev) {
pwrdm = omapdev_get_pwrdm(odev);
if (pwrdm)
return pwrdm->state_counter[0] & INT_MAX;
}
return 0;
}
