#include <linux/kernel.h>
#include <linux/platform_device.h>
+#include <linux/slab.h>
#include <linux/err.h>
#include <linux/io.h>
#define IGNORE_WAKEUP_LAT 1
+#define OMAP_DEVICE_MAGIC 0xf00dcafe
+
/* Private functions */
/**
"%llu nsec\n", od->pdev.name, od->pm_lat_level,
act_lat);
- WARN(act_lat > odpl->activate_lat, "omap_device: %s.%d: "
- "activate step %d took longer than expected (%llu > %d)\n",
- od->pdev.name, od->pdev.id, od->pm_lat_level,
- act_lat, odpl->activate_lat);
+ if (act_lat > odpl->activate_lat) {
+ odpl->activate_lat_worst = act_lat;
+ if (odpl->flags & OMAP_DEVICE_LATENCY_AUTO_ADJUST) {
+ odpl->activate_lat = act_lat;
+ pr_warning("omap_device: %s.%d: new worst case "
+ "activate latency %d: %llu\n",
+ od->pdev.name, od->pdev.id,
+ od->pm_lat_level, act_lat);
+ } else
+ pr_warning("omap_device: %s.%d: activate "
+ "latency %d higher than exptected. "
+ "(%llu > %d)\n",
+ od->pdev.name, od->pdev.id,
+ od->pm_lat_level, act_lat,
+ odpl->activate_lat);
+ }
od->dev_wakeup_lat -= odpl->activate_lat;
}
"%llu nsec\n", od->pdev.name, od->pm_lat_level,
deact_lat);
- WARN(deact_lat > odpl->deactivate_lat, "omap_device: %s.%d: "
- "deactivate step %d took longer than expected "
- "(%llu > %d)\n", od->pdev.name, od->pdev.id,
- od->pm_lat_level, deact_lat, odpl->deactivate_lat);
+ if (deact_lat > odpl->deactivate_lat) {
+ odpl->deactivate_lat_worst = deact_lat;
+ if (odpl->flags & OMAP_DEVICE_LATENCY_AUTO_ADJUST) {
+ odpl->deactivate_lat = deact_lat;
+ pr_warning("omap_device: %s.%d: new worst case "
+ "deactivate latency %d: %llu\n",
+ od->pdev.name, od->pdev.id,
+ od->pm_lat_level, deact_lat);
+ } else
+ pr_warning("omap_device: %s.%d: deactivate "
+ "latency %d higher than exptected. "
+ "(%llu > %d)\n",
+ od->pdev.name, od->pdev.id,
+ od->pm_lat_level, deact_lat,
+ odpl->deactivate_lat);
+ }
+
od->dev_wakeup_lat += odpl->activate_lat;
* @pdata_len: amount of memory pointed to by @pdata
* @pm_lats: pointer to a omap_device_pm_latency array for this device
* @pm_lats_cnt: ARRAY_SIZE() of @pm_lats
+ * @is_early_device: should the device be registered as an early device or not
*
* Convenience function for building and registering a single
* omap_device record, which in turn builds and registers a
struct omap_hwmod *oh, void *pdata,
int pdata_len,
struct omap_device_pm_latency *pm_lats,
- int pm_lats_cnt)
+ int pm_lats_cnt, int is_early_device)
{
struct omap_hwmod *ohs[] = { oh };
return ERR_PTR(-EINVAL);
return omap_device_build_ss(pdev_name, pdev_id, ohs, 1, pdata,
- pdata_len, pm_lats, pm_lats_cnt);
+ pdata_len, pm_lats, pm_lats_cnt,
+ is_early_device);
}
/**
* @pdata_len: amount of memory pointed to by @pdata
* @pm_lats: pointer to a omap_device_pm_latency array for this device
* @pm_lats_cnt: ARRAY_SIZE() of @pm_lats
+ * @is_early_device: should the device be registered as an early device or not
*
* Convenience function for building and registering an omap_device
* subsystem record. Subsystem records consist of multiple
struct omap_hwmod **ohs, int oh_cnt,
void *pdata, int pdata_len,
struct omap_device_pm_latency *pm_lats,
- int pm_lats_cnt)
+ int pm_lats_cnt, int is_early_device)
{
int ret = -ENOMEM;
struct omap_device *od;
od->pm_lats = pm_lats;
od->pm_lats_cnt = pm_lats_cnt;
- ret = omap_device_register(od);
+ od->magic = OMAP_DEVICE_MAGIC;
+
+ if (is_early_device)
+ ret = omap_early_device_register(od);
+ else
+ ret = omap_device_register(od);
+
if (ret)
goto odbs_exit4;
return ERR_PTR(ret);
}
+/**
+ * omap_early_device_register - register an omap_device as an early platform
+ * device.
+ * @od: struct omap_device * to register
+ *
+ * Register the omap_device structure. This currently just calls
+ * platform_early_add_device() on the underlying platform_device.
+ * Returns 0 by default.
+ */
+int omap_early_device_register(struct omap_device *od)
+{
+ struct platform_device *devices[1];
+
+ devices[0] = &(od->pdev);
+ early_platform_add_devices(devices, 1);
+ return 0;
+}
+
/**
* omap_device_register - register an omap_device with one omap_hwmod
* @od: struct omap_device * to register
od = _find_by_pdev(pdev);
if (od->_state == OMAP_DEVICE_STATE_ENABLED) {
- WARN(1, "omap_device: %s.%d: omap_device_enable() called from "
- "invalid state\n", od->pdev.name, od->pdev.id);
+ WARN(1, "omap_device: %s.%d: %s() called from invalid state %d\n",
+ od->pdev.name, od->pdev.id, __func__, od->_state);
return -EINVAL;
}
od = _find_by_pdev(pdev);
if (od->_state != OMAP_DEVICE_STATE_ENABLED) {
- WARN(1, "omap_device: %s.%d: omap_device_idle() called from "
- "invalid state\n", od->pdev.name, od->pdev.id);
+ WARN(1, "omap_device: %s.%d: %s() called from invalid state %d\n",
+ od->pdev.name, od->pdev.id, __func__, od->_state);
return -EINVAL;
}
if (od->_state != OMAP_DEVICE_STATE_ENABLED &&
od->_state != OMAP_DEVICE_STATE_IDLE) {
- WARN(1, "omap_device: %s.%d: omap_device_shutdown() called "
- "from invalid state\n", od->pdev.name, od->pdev.id);
+ WARN(1, "omap_device: %s.%d: %s() called from invalid state %d\n",
+ od->pdev.name, od->pdev.id, __func__, od->_state);
return -EINVAL;
}
return ret;
}
+/**
+ * omap_device_is_valid - Check if pointer is a valid omap_device
+ * @od: struct omap_device *
+ *
+ * Return whether struct omap_device pointer @od points to a valid
+ * omap_device.
+ */
+bool omap_device_is_valid(struct omap_device *od)
+{
+ return (od && od->magic == OMAP_DEVICE_MAGIC);
+}
+
/**
* omap_device_get_pwrdm - return the powerdomain * associated with @od
* @od: struct omap_device *
git.openpandora.org / pandora-kernel.git / blobdiff