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* OMAP3+: VP: remove unused omap_vp_get_curr_volt()Kevin Hilman2011-09-151-1/+0
| | | | Signed-off-by: Kevin Hilman <khilman@ti.com>
* OMAP: VP: Explicitly mask VPVOLTAGE fieldTodd Poynor2011-09-151-0/+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>
* OMAP3+: VP: remove omap_vp_runtime_dataKevin Hilman2011-09-151-28/+0
| | | | | | | | | | 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>
* OMAP3+: VP: create VP helper function for updating error gainKevin Hilman2011-09-151-0/+2
| | | | | | | | | | 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>
* OMAP3+: VP: struct omap_vp_common: replace shift with __ffs(mask)Kevin Hilman2011-09-151-20/+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>
* OMAP3+: VP: cleanup: move VP instance into voltdm, misc. renamesKevin Hilman2011-09-151-11/+13
| | | | | | | | | | | | - 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>
* OMAP3+: voltage: convert to PRM register access functionsKevin Hilman2011-09-151-2/+0
| | | | | | | | | | | | | | 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>
* OMAP2+: add PRM VP functions for checking/clearing VP TX done statusKevin Hilman2011-09-151-13/+21
| | | | | | | | | | Add SoC specific PRM VP helper functions for checking and clearing the VP transaction done status. Longer term, these events should be handled by the forthcoming PRCM interrupt handler. Signed-off-by: Kevin Hilman <khilman@ti.com>
* OMAP2+: voltage: split out voltage processor (VP) code into new layerKevin Hilman2011-09-151-0/+9
| | | | | | | | | | | | 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>
* OMAP2+: voltage: move prm_irqst_reg from VP into voltage domainKevin Hilman2011-09-151-3/+0
| | | | | | | The prm_irqst_reg is not part of the VP. Move it up into the common voltage domain struct. Signed-off-by: Kevin Hilman <khilman@ti.com>
* OMAP2+: voltage: move PRCM mod offets into VC/VP structuresKevin Hilman2011-09-151-0/+2
| | | | | | | | | | | | Eliminate need for global variables for the various PRM module offsets by making them part of the VP/VC common structures Eventually, these will likely be moved again, or more likely removed when VP/VC code is isolated, but for now just getting rid of them as global variabes so that the voltage domain initialization can be cleaned up. Signed-off-by: Kevin Hilman <khilman@ti.com>
* OMAP2+: voltage: reorganize, split code from dataPaul Walmsley2011-03-101-0/+143
This is a first pass at reorganizing mach-omap2/voltage.c: - Separate almost all of the data from the code of mach-omap2/voltage.c. The code remains in mach-omap2/voltage.c. The data goes into one of several places, depending on what type of data it is: - Silicon process/validation data: mach-omap2/opp*_data.c - VC (Voltage Controller) data: mach-omap2/vc*_data.c - VP (Voltage Processor) data: mach-omap2/vp*_data.c - Voltage domain data: mach-omap2/voltagedomains*_data.c The ultimate goal is for all this data to be autogenerated, the same way we autogenerate the rest of our data. - Separate VC and VP common data from VDD-specific VC and VP data. - Separate common voltage.c code from SoC-specific code; reuse common code. - Reorganize structures to avoid unnecessary memory loss due to unpacked fields. There is much left to be done. VC code and VP code should be separated out into vc*.c and vp*.c files. Many fields in the existing structures are superfluous, and should be removed. Some code in voltage.c seems to be duplicated; that code should be moved into functions of its own. Proper voltage domain code should be created, as was done with the powerdomain and clockdomains, and powerdomains should reference voltagedomains. Thanks to Shweta Gulati <shweta.gulati@ti.com> for comments. Thanks to Rajendra Nayak <rnayak@ti.com> for finding and fixing some bugs that prevented OMAP4 from booting: https://patchwork.kernel.org/patch/587311/ His patch has been folded into this one to avoid breaking OMAP4 between patches. Thanks also to Kevin Hilman <khilman@ti.com> for finding and fixing a compile problem when !CONFIG_PM: http://www.spinics.net/lists/arm-kernel/msg118067.html His patch has also been folded into this one to avoid breaking !CONFIG_PM builds. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Shweta Gulati <shweta.gulati@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> Cc: Kevin Hilman <khilman@ti.com>
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