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path: root/arch/arm/mach-omap2/vp.c
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2011-09-15OMAP3+: VP: combine setting init voltage into common functionKevin Hilman1-39/+19
combine VPCONFIG init voltage setup into common function and use from both vp_enable and from vp_forceupdate_scale(). NOTE: this patch changes the sequence of when the initVDD bit is cleared. The bit is now cleared immediately after it was written. Since only the rising edge of this bit has any affect according to the TRM, the exact timing of clearing of this bit should not have any effect. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP3+: VP: remove unused omap_vp_get_curr_volt()Kevin Hilman1-34/+0
Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP3+: VP: update_errorgain(): return error if VPKevin Hilman1-0/+3
Add check for valid VP in omap_vp_update_errorgain() Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP: VP: Explicitly mask VPVOLTAGE fieldTodd Poynor1-1/+2
Reading the VPVOLTAGE field of PRM_VP_*_VOLTAGE registers currently relies on a u32 -> u8 conversion to mask off the FORCEUPDATEWAIT field in the upper bits. Make this explicit using the mask symbol already defined, added as a new field in struct omap_vp_common. Signed-off-by: Todd Poynor <toddpoynor@google.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP3+: VP: remove omap_vp_runtime_dataKevin Hilman1-39/+31
Remove the "runtime" VP data in favor of direct programming of VP registers. The VP is in the PRM, which is in the wakeup powerdomain, so there is no need to keep the state dynamically. Fixes to original version from Nishanth Menon <nm@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP3+: VP: create VP helper function for updating error gainKevin Hilman1-0/+19
Create new helper function in VP layer for updating VP error gain. Currently used during pre-scale for VP force update and VC bypass. TODO: determine if this can be removed from the pre-scale path and moved to VP enable path. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP3+: VP: move timing calculation/config into VP initKevin Hilman1-1/+22
Move VP timing calcluation (based on sys clock) and register programming into VP init. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP3+: VP: struct omap_vp_common: replace shift with __ffs(mask)Kevin Hilman1-15/+14
In struct omap_vp_common, the shift value can be derived from the mask value by using __ffs(), so remove the shift value for the various VPCONFIG bitfields, and use __ffs() in the code for the shift value. While here, rename field names in kerneldoc comment to match actual field names in structure. Also, cleanup indendentaion for other VP register accesses in omap_vp_init(). No functional changes. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP3+: voltage: remove unneeded debugfs interfaceKevin Hilman1-63/+0
Remove read-only debugfs interface to VP values. Most of the values are init-time only and never change. Current voltage value should be retreived from the (eventual) regulator framework interface to the voltage domain. Fixes to original version provided by Nishanth Menon <nm@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP3+: VP: cleanup: move VP instance into voltdm, misc. renamesKevin Hilman1-47/+41
- move VP instance struct from vdd_info into struct voltage domain - remove _data suffix from structure name - rename vp_ prefix from vp_common field: accesses are now vp->common - move vp_enabled bool from vdd_info into VP instance - remove remaining references to omap_vdd_info No functional changes. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP3+: voltage domain: move PMIC struct from vdd_info into struct voltagedomainKevin Hilman1-7/+6
Move structure containing PMIC configurable settings into struct voltagedomain. In the process, rename from omap_volt_pmic_info to omap_voltdm_pmic (_info suffix is not helpful.) No functional changes. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP3+: voltage: convert to PRM register access functionsKevin Hilman1-29/+28
Convert VC/VP register access to use PRM VC/VP accessor functions. In the process, move the read/write function pointers from vdd_info into struct voltagedomain. No functional changes. Additional cleanup: - remove prm_mod field from VC/VP data structures, the PRM register access functions know which PRM module to use. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP3+ VP: replace transaction done check/clear with VP opsKevin Hilman1-11/+5
Replace the VP tranxdone check/clear with helper functions from the PRM layer. In the process, remove prm_irqst_* voltage structure fields for IRQ status checking which are no longer needed. Since these reads/writes of the IRQ status bits were the only PRM accesses that were not to VC/VP registers, this allows the rest of the register accesses in the VC/VP code to use VC/VP specific register access functions (done in the following patch.) Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP2+: voltage: split out voltage processor (VP) code into new layerKevin Hilman1-0/+374
This patch is primarily a move of VP specific code from voltage.c into its own code in vp.c and adds prototypes to vp.h No functional changes, except debugfs... VP debugfs moved to 'vp' subdir of <debugfs>/voltage/ and 'vp_' prefixes removed from all debugfs filenames. Signed-off-by: Kevin Hilman <khilman@ti.com>
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