path: root/arch/arm/mach-omap2/omap_twl.c
AgeCommit message (Collapse)AuthorFilesLines
2011-09-15OMAP4: PM: TWL6030: add cmd registerNishanth Menon1-0/+6
Without the command register, ON/ONLP/RET/OFF voltages are useless. and TWL will be unable to use these Signed-off-by: Nishanth Menon <nm@ti.com>
2011-09-15OMAP4: PM: TWL6030: fix ON/RET/OFF voltagesPatrick Titiano1-12/+12
According to latest OMAP4430 Data Manual v0.4 dated March 2011: - Retention voltage shall be set to 0.83V. See tables 2.2, 2.4 and 2.6 in DM. This allows saving a little more power in retention states. - OPP100 IVA nominal voltage is 1.188V. See table 2.4 in DM. This allows saving a little power when CPU wakes up until Smart-Reflex is not yet resumed. [nm@ti.com: ported to voltdm_c] Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Patrick Titiano <p-titiano@ti.com>
2011-09-15OMAP4: PM: TWL6030: address 0V conversionsNishanth Menon1-0/+4
0V conversions should be mapped to 0 as it is meant to denote off voltages. Signed-off-by: Nishanth Menon <nm@ti.com>
2011-09-15OMAP4: PM: TWL6030: fix uv to voltage for >0x39Nishanth Menon1-1/+6
using 1.35V as a check is not correct, we know that beyond 0x39, voltages are non linear - hence use the conversion iff uV greater than that for 0x39. For example, with 709mV as the smps offset, the max linear is actually 1.41V(0x39vsel)! Signed-off-by: Nishanth Menon <nm@ti.com>
2011-09-15OMAP4: PM: TWL6030: fix voltage conversion formulaPatrick Titiano1-7/+7
omap_twl_vsel_to_uv() and omap_twl_uv_to_vsel() functions used to convert voltages to TWL6030 SMPS commands (a.k.a "vsel") implement incorrect conversion formula. It uses legacy OMAP3 formula, but OMAP4 Power IC has different offset and voltage step: - Voltage Step is now 12.66mV (instead of 12.5mV) - Offset is either 607.7mV or 709mV depending on TWL6030 chip revision (instead of 600mV) This leads to setting voltages potentially higher than expected, and so potentially some (limited) power overconsumption. For reference, see formula and tables in section "Output Voltage Selection (Standard Mode / Extended Mode with or without offset)" in TWL6030 functional specifications document. [nm@ti.com: ported to voltdm_c] Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Patrick Titiano <p-titiano@ti.com>
2011-09-15OMAP3+: VC: make I2C config programmable with PMIC-specific settingsKevin Hilman1-0/+4
Remove hard-coded I2C configuration in favor of settings that can be configured from PMIC-specific values. Currently only high-speed mode and the master-code value are supported, since they were the only fields currently used, but extending this is now trivial. Thanks to Nishanth Menon <nm@ti.com> for reporting/fixing a sparse problem and making omap_vc_i2c_init() static, as well as finding and fixing a problem with the shift/mask of mcode. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP3+: voltage domain: move PMIC struct from vdd_info into struct voltagedomainKevin Hilman1-14/+14
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>
2011-09-15OMAP2+: VC: support PMICs with separate voltage and command registersKevin Hilman1-5/+5
The VC layer can support PMICs with separate voltage and command registers by putting the different registers in the PRM_VC_SMPS_VOL_RA and PRCM_VC_SMPS_CMD_RA registers respectively. The PMIC data must supply at least a voltage register address (volt_reg_addr). The command register address (cmd_reg_addr) is optional. If the PMIC data does not supply a separate command register address, the VC will use the voltage register address for both. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP3: voltage: rename "mpu" voltagedomain to "mpu_iva"Kevin Hilman1-1/+1
This voltage domain (a.k.a. VDD1) contains both the MPU and the IVA, so rename appropriately. Also fixup any users of the "mpu" name to use "mpu_iva" Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-15OMAP2+: voltage: start towards a new voltagedomain layerKevin Hilman1-5/+5
Start cleaning up the voltage layer to have a voltage domain layer that resembles the structure of the existing clock and power domain layers. To that end: - move the 'struct voltagedomain' out of 'struct omap_vdd_info' to become the primary data structure. - convert any functions taking a pointer to struct omap_vdd_info into functions taking a struct voltagedomain pointer. - convert the register & initialize of voltage domains to look like that of powerdomains - convert omap_voltage_domain_lookup() to voltdm_lookup(), modeled after the current powerdomain and clockdomain lookup functions. - omap_voltage_late_init(): only configure VDD info when the vdd_info struct is non-NULL Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-31Fix common misspellingsLucas De Marchi1-1/+1
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-11Merge branch 'integration-2.6.39-for-tony' of ↵Tony Lindgren1-1/+1
git://git.pwsan.com/linux-integration into omap-for-linus Conflicts: arch/arm/mach-omap2/pm34xx.c
2011-03-09OMAP3: PM: Set/clear T2 bit for Smartreflex on TWLThara Gopinath1-0/+60
Voltage control on TWL can be done using VMODE/I2C1/I2C_SR. Since almost all platforms use I2C_SR on omap3, omap3_twl_init by default expects that OMAP's I2C_SR is plugged in to TWL's I2C and calls omap3_twl_set_sr_bit. On platforms where I2C_SR is not connected, the board files are expected to call omap3_twl_set_sr_bit(false) to ensure that I2C_SR path is not set for voltage control and prevent the default behavior of omap3_twl_init. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Thara Gopinath <thara@ti.com> Signed-off-by: Shweta Gulati <shweta.gulati@ti.com> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-07OMAP: voltage: move plat/voltage.h to mach-omap2/voltage.hPaul Walmsley1-1/+1
At this point in time, there's no reason for this header file to be in plat-omap/include/plat/voltage.h. It should not be included by device drivers, and the code that uses it is currently all under mach-omap2/. Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-01-07OMAP2+: TWL: include pm header for init protosNishanth Menon1-0/+2
twl_init functions are declared in pm.h and used in pm.c pm.h header defining the protos need to be included to ensure that omap_twl.c has consistent function definition. This fixes sparse warning: arch/arm/mach-omap2/omap_twl.c:237:12: warning: symbol 'omap4_twl_init' was not declared. Should it be static? arch/arm/mach-omap2/omap_twl.c:256:12: warning: symbol 'omap3_twl_init' was not declared. Should it be static? Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-01-07OMAP2+: TWL: make conversion routines staticNishanth Menon1-4/+4
The uv_to_vsel, vsel_to_uv functions don't need to be exposed to the world as they are used as function pointers. make them static. Fixes sparse warnings: arch/arm/mach-omap2/omap_twl.c:63:15: warning: symbol 'twl4030_vsel_to_uv' was not declared. Should it be static? arch/arm/mach-omap2/omap_twl.c:68:4: warning: symbol 'twl4030_uv_to_vsel' was not declared. Should it be static? arch/arm/mach-omap2/omap_twl.c:73:15: warning: symbol 'twl6030_vsel_to_uv' was not declared. Should it be static? arch/arm/mach-omap2/omap_twl.c:105:4: warning: symbol 'twl6030_uv_to_vsel' was not declared. Should it be static? Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2010-12-22OMAP4: Register voltage PMIC parameters with the voltage layerThara Gopinath1-0/+166
TWL6030 is the power IC used along with OMAP4 in OMAP4 SDPs, blaze boards and panda boards. This patch registers the OMAP4 PMIC specific information with the voltage layer. This also involves implementing a different formula for voltage to vsel and vsel to voltage calculations from TWL4030. Signed-off-by: Thara Gopinath <thara@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-12-22OMAP3: PM: Register TWL4030 pmic info with the voltage driver.Thara Gopinath1-0/+111
This patch registers the TWL4030 PMIC specific informtion with the voltage driver. Failing this patch the voltage driver is unware of the formula to use for vsel to voltage and vice versa conversion and lot of other PMIC dependent parameters. This file is based on the arch/arm/plat-omap opp_twl_tpl.c file by Paul Walmsley. The original file is replaced by this file. Signed-off-by: Thara Gopinath <thara@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>