diff options
Diffstat (limited to 'arch/arm/plat-omap/include/plat/omap-pm.h')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/omap-pm.h | 50 |
1 files changed, 29 insertions, 21 deletions
diff --git a/arch/arm/plat-omap/include/plat/omap-pm.h b/arch/arm/plat-omap/include/plat/omap-pm.h index c0a7520..2efbff5 100644 --- a/arch/arm/plat-omap/include/plat/omap-pm.h +++ b/arch/arm/plat-omap/include/plat/omap-pm.h @@ -17,7 +17,9 @@ #include <linux/device.h> #include <linux/cpufreq.h> #include <linux/clk.h> +#include <linux/pm_qos_params.h> #include <linux/opp.h> +#include <linux/pm_qos_params.h> /* * agent_id values for use with omap_pm_set_min_bus_tput(): @@ -73,7 +75,8 @@ void omap_pm_if_exit(void); /** * omap_pm_set_max_mpu_wakeup_lat - set the maximum MPU wakeup latency - * @dev: struct device * requesting the constraint + * @qos_request: handle for the constraint. The pointer should be + * initialized to NULL * @t: maximum MPU wakeup latency in microseconds * * Request that the maximum interrupt latency for the MPU to be no @@ -105,7 +108,8 @@ void omap_pm_if_exit(void); * Returns -EINVAL for an invalid argument, -ERANGE if the constraint * is not satisfiable, or 0 upon success. */ -int omap_pm_set_max_mpu_wakeup_lat(struct device *dev, long t); +int omap_pm_set_max_mpu_wakeup_lat(struct pm_qos_request_list **qos_request, + long t); /** @@ -132,12 +136,12 @@ int omap_pm_set_max_mpu_wakeup_lat(struct device *dev, long t); * * Multiple calls to omap_pm_set_min_bus_tput() will replace the * previous rate value for this device. To remove the interconnect - * throughput restriction for this device, call with r = 0. + * throughput restriction for this device, call with r = -1. * * Returns -EINVAL for an invalid argument, -ERANGE if the constraint * is not satisfiable, or 0 upon success. */ -int omap_pm_set_min_bus_tput(struct device *dev, u8 agent_id, unsigned long r); +int omap_pm_set_min_bus_tput(struct device *dev, u8 agent_id, long r); /** @@ -172,7 +176,8 @@ int omap_pm_set_max_dev_wakeup_lat(struct device *req_dev, struct device *dev, /** * omap_pm_set_max_sdma_lat - set the maximum system DMA transfer start latency - * @dev: struct device * + * @qos_request: handle for the constraint. The pointer should be + * initialized to NULL * @t: maximum DMA transfer start latency in microseconds * * Request that the maximum system DMA transfer start latency for this @@ -197,7 +202,8 @@ int omap_pm_set_max_dev_wakeup_lat(struct device *req_dev, struct device *dev, * Returns -EINVAL for an invalid argument, -ERANGE if the constraint * is not satisfiable, or 0 upon success. */ -int omap_pm_set_max_sdma_lat(struct device *dev, long t); +int omap_pm_set_max_sdma_lat(struct pm_qos_request_list **qos_request, + long t); /** @@ -337,24 +343,26 @@ unsigned long omap_pm_cpu_get_freq(void); */ /** - * omap_pm_get_dev_context_loss_count - return count of times dev has lost ctx - * @dev: struct device * - * - * This function returns the number of times that the device @dev has - * lost its internal context. This generally occurs on a powerdomain - * transition to OFF. Drivers use this as an optimization to avoid restoring - * context if the device hasn't lost it. To use, drivers should initially - * call this in their context save functions and store the result. Early in - * the driver's context restore function, the driver should call this function - * again, and compare the result to the stored counter. If they differ, the - * driver must restore device context. If the number of context losses - * exceeds the maximum positive integer, the function will wrap to 0 and - * continue counting. Returns the number of context losses for this device, - * or zero upon error. + * omap_pm_was_context_lost - return true if a device lost hw context + * + * This function returns a bool value indication if a device has lost + * its context. Depending on the HW implementation of the device, Context + * can be lost in OFF or OSWR. This function reads and *CLEARS* the context + * lost registers for the device. + */ +bool omap_pm_was_context_lost(struct device *dev); + +/** + * omap_pm_set_min_mpu_freq - sets the min frequency the mpu should be allowed + * to run. The function works with a granularity of 1000000. Any frequency requested, + * will set the mpu frequency to the closet higher frequency that can match the request. + * to release the constraint, the f parameter should be passed as -1. */ -u32 omap_pm_get_dev_context_loss_count(struct device *dev); +int omap_pm_set_min_mpu_freq(struct device *dev, unsigned long f); void omap_pm_enable_off_mode(void); void omap_pm_disable_off_mode(void); +extern bool off_mode_enabled; + #endif |