arm/omap/omap_pm.rst

13 - support the range of power management parameters present in the TI SRF;
15 - separate the drivers from the underlying PM parameter
19 - specify PM parameters in terms of fundamental units, such as
20   latency and throughput, rather than units which are specific to OMAP
23 - allow drivers which are shared with other architectures (e.g.,
24   DaVinci) to add these constraints in a way which won't affect non-OMAP
27 - can be implemented immediately with minimal disruption of other
36    (*pdata->set_max_mpu_wakeup_lat)(struct device *dev, unsigned long t)
40    (*pdata->set_max_dev_wakeup_lat)(struct device *dev, unsigned long t)
44    (*pdata->set_max_sdma_lat)(struct device *dev, long t)
48    (*pdata->set_min_bus_tput)(struct device *dev, u8 agent_id, unsigned long r)
52    (*pdata->get_dev_context_loss_count)(struct device *dev)
56 found in arch/arm/plat-omap/include/mach/omap-pm.h.
60 ---------------------------------------------
69 -------------------------------------
73 structures.  The function pointers are initialized by the `board-*.c`
76 - set_max_dev_wakeup_lat will point to
81         if (pdata->set_max_dev_wakeup_lat)
82             (*pdata->set_max_dev_wakeup_lat)(dev, t);
93         if (pdata->set_max_mpu_wakeup_lat)
94             (*pdata->set_max_mpu_wakeup_lat)(dev, tc);
97         if (pdata->set_max_dev_wakeup_lat)
98             (*pdata->set_max_dev_wakeup_lat)(dev, td);
104 function with a t argument of -1 (except in the case of
114 -------------------------------------
118 DSPBridge expresses target DSP performance levels in terms of OPP IDs.
125 6. `(*pdata->dsp_get_opp_table)(void)`
127 7. `(*pdata->dsp_set_min_opp)(u8 opp_id)`
129 8. `(*pdata->dsp_get_opp)(void)`
131 9. `(*pdata->cpu_get_freq_table)(void)`
133 10. `(*pdata->cpu_set_freq)(unsigned long f)`
135 11. `(*pdata->cpu_get_freq)(void)`
137 Customizing OPP for platform
139 Defining CONFIG_PM should enable OPP layer for the silicon
140 and the registration of OPP table should take place automatically.
141 However, in special cases, the default OPP table may need to be
146  * Disable an unsupported OPP on the platform
147  * Define and add a custom opp table entry
150 arch/arm/mach-omapx/board-xyz.c::