2009-08-21 03:09:39 +08:00
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/*
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* tps6507x-regulator.c
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*
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* Regulator driver for TPS65073 PMIC
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*
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* Copyright (C) 2009 Texas Instrument Incorporated - http://www.ti.com/
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
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* whether express or implied; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/err.h>
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#include <linux/platform_device.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/machine.h>
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regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In TPS6507x, depending on the status of DEFDCDC{2,3} pin either
DEFDCDC{2,3}_LOW or DEFDCDC{2,3}_HIGH register needs to be read or
programmed to change the output voltage.
The current driver assumes DEFDCDC{2,3} pins are always tied low
and thus operates only on DEFDCDC{2,3}_LOW register. This need
not always be the case (as is found on OMAP-L138 EVM).
Unfortunately, software cannot read the status of DEFDCDC{2,3} pins.
So, this information is passed through platform data depending on
how the board is wired.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-07-12 20:24:06 +08:00
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#include <linux/regulator/tps6507x.h>
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2009-08-21 03:09:39 +08:00
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#include <linux/delay.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 16:04:11 +08:00
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#include <linux/slab.h>
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2010-04-06 10:23:56 +08:00
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#include <linux/mfd/tps6507x.h>
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2009-08-21 03:09:39 +08:00
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/* DCDC's */
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#define TPS6507X_DCDC_1 0
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#define TPS6507X_DCDC_2 1
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#define TPS6507X_DCDC_3 2
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/* LDOs */
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#define TPS6507X_LDO_1 3
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#define TPS6507X_LDO_2 4
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#define TPS6507X_MAX_REG_ID TPS6507X_LDO_2
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/* Number of step-down converters available */
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#define TPS6507X_NUM_DCDC 3
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/* Number of LDO voltage regulators available */
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#define TPS6507X_NUM_LDO 2
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/* Number of total regulators available */
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#define TPS6507X_NUM_REGULATOR (TPS6507X_NUM_DCDC + TPS6507X_NUM_LDO)
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/* Supported voltage values for regulators (in milliVolts) */
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static const u16 VDCDCx_VSEL_table[] = {
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725, 750, 775, 800,
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825, 850, 875, 900,
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925, 950, 975, 1000,
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1025, 1050, 1075, 1100,
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1125, 1150, 1175, 1200,
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1225, 1250, 1275, 1300,
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1325, 1350, 1375, 1400,
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1425, 1450, 1475, 1500,
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1550, 1600, 1650, 1700,
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1750, 1800, 1850, 1900,
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1950, 2000, 2050, 2100,
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2150, 2200, 2250, 2300,
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2350, 2400, 2450, 2500,
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2550, 2600, 2650, 2700,
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2750, 2800, 2850, 2900,
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3000, 3100, 3200, 3300,
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};
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static const u16 LDO1_VSEL_table[] = {
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1000, 1100, 1200, 1250,
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1300, 1350, 1400, 1500,
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1600, 1800, 2500, 2750,
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2800, 3000, 3100, 3300,
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};
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static const u16 LDO2_VSEL_table[] = {
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725, 750, 775, 800,
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825, 850, 875, 900,
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925, 950, 975, 1000,
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1025, 1050, 1075, 1100,
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1125, 1150, 1175, 1200,
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1225, 1250, 1275, 1300,
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1325, 1350, 1375, 1400,
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1425, 1450, 1475, 1500,
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1550, 1600, 1650, 1700,
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1750, 1800, 1850, 1900,
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1950, 2000, 2050, 2100,
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2150, 2200, 2250, 2300,
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2350, 2400, 2450, 2500,
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2550, 2600, 2650, 2700,
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2750, 2800, 2850, 2900,
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3000, 3100, 3200, 3300,
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};
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static unsigned int num_voltages[] = {ARRAY_SIZE(VDCDCx_VSEL_table),
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ARRAY_SIZE(VDCDCx_VSEL_table),
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ARRAY_SIZE(VDCDCx_VSEL_table),
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ARRAY_SIZE(LDO1_VSEL_table),
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ARRAY_SIZE(LDO2_VSEL_table)};
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struct tps_info {
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const char *name;
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unsigned min_uV;
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unsigned max_uV;
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u8 table_len;
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const u16 *table;
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regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In TPS6507x, depending on the status of DEFDCDC{2,3} pin either
DEFDCDC{2,3}_LOW or DEFDCDC{2,3}_HIGH register needs to be read or
programmed to change the output voltage.
The current driver assumes DEFDCDC{2,3} pins are always tied low
and thus operates only on DEFDCDC{2,3}_LOW register. This need
not always be the case (as is found on OMAP-L138 EVM).
Unfortunately, software cannot read the status of DEFDCDC{2,3} pins.
So, this information is passed through platform data depending on
how the board is wired.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-07-12 20:24:06 +08:00
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/* Does DCDC high or the low register defines output voltage? */
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bool defdcdc_default;
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2009-08-21 03:09:39 +08:00
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};
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regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In TPS6507x, depending on the status of DEFDCDC{2,3} pin either
DEFDCDC{2,3}_LOW or DEFDCDC{2,3}_HIGH register needs to be read or
programmed to change the output voltage.
The current driver assumes DEFDCDC{2,3} pins are always tied low
and thus operates only on DEFDCDC{2,3}_LOW register. This need
not always be the case (as is found on OMAP-L138 EVM).
Unfortunately, software cannot read the status of DEFDCDC{2,3} pins.
So, this information is passed through platform data depending on
how the board is wired.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-07-12 20:24:06 +08:00
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static struct tps_info tps6507x_pmic_regs[] = {
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2010-04-08 15:04:55 +08:00
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{
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.name = "VDCDC1",
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.min_uV = 725000,
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.max_uV = 3300000,
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.table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
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.table = VDCDCx_VSEL_table,
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},
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{
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.name = "VDCDC2",
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.min_uV = 725000,
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.max_uV = 3300000,
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.table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
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.table = VDCDCx_VSEL_table,
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},
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{
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.name = "VDCDC3",
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.min_uV = 725000,
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.max_uV = 3300000,
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.table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
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.table = VDCDCx_VSEL_table,
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},
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{
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.name = "LDO1",
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.min_uV = 1000000,
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.max_uV = 3300000,
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.table_len = ARRAY_SIZE(LDO1_VSEL_table),
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.table = LDO1_VSEL_table,
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},
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{
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.name = "LDO2",
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.min_uV = 725000,
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.max_uV = 3300000,
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.table_len = ARRAY_SIZE(LDO2_VSEL_table),
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.table = LDO2_VSEL_table,
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},
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};
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2010-04-06 10:23:58 +08:00
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struct tps6507x_pmic {
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2009-08-21 03:09:39 +08:00
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struct regulator_desc desc[TPS6507X_NUM_REGULATOR];
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2010-04-08 15:04:55 +08:00
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struct tps6507x_dev *mfd;
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2009-08-21 03:09:39 +08:00
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struct regulator_dev *rdev[TPS6507X_NUM_REGULATOR];
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regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In TPS6507x, depending on the status of DEFDCDC{2,3} pin either
DEFDCDC{2,3}_LOW or DEFDCDC{2,3}_HIGH register needs to be read or
programmed to change the output voltage.
The current driver assumes DEFDCDC{2,3} pins are always tied low
and thus operates only on DEFDCDC{2,3}_LOW register. This need
not always be the case (as is found on OMAP-L138 EVM).
Unfortunately, software cannot read the status of DEFDCDC{2,3} pins.
So, this information is passed through platform data depending on
how the board is wired.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-07-12 20:24:06 +08:00
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struct tps_info *info[TPS6507X_NUM_REGULATOR];
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2009-08-21 03:09:39 +08:00
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struct mutex io_lock;
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};
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2010-04-06 10:23:58 +08:00
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static inline int tps6507x_pmic_read(struct tps6507x_pmic *tps, u8 reg)
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2009-08-21 03:09:39 +08:00
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{
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2010-04-08 15:04:55 +08:00
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u8 val;
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int err;
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err = tps->mfd->read_dev(tps->mfd, reg, 1, &val);
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if (err)
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return err;
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return val;
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2009-08-21 03:09:39 +08:00
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}
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2010-04-06 10:23:58 +08:00
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static inline int tps6507x_pmic_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
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2009-08-21 03:09:39 +08:00
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{
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2010-04-08 15:04:55 +08:00
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return tps->mfd->write_dev(tps->mfd, reg, 1, &val);
|
2009-08-21 03:09:39 +08:00
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}
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2010-04-06 10:23:58 +08:00
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static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
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2009-08-21 03:09:39 +08:00
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{
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int err, data;
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mutex_lock(&tps->io_lock);
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2010-04-06 10:23:58 +08:00
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data = tps6507x_pmic_read(tps, reg);
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2009-08-21 03:09:39 +08:00
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if (data < 0) {
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2010-04-08 15:04:55 +08:00
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dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
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2009-08-21 03:09:39 +08:00
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err = data;
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goto out;
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}
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data |= mask;
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2010-04-06 10:23:58 +08:00
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err = tps6507x_pmic_write(tps, reg, data);
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2009-08-21 03:09:39 +08:00
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if (err)
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2010-04-08 15:04:55 +08:00
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dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
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2009-08-21 03:09:39 +08:00
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out:
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mutex_unlock(&tps->io_lock);
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return err;
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}
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2010-04-06 10:23:58 +08:00
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static int tps6507x_pmic_clear_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
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2009-08-21 03:09:39 +08:00
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{
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int err, data;
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mutex_lock(&tps->io_lock);
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2010-04-06 10:23:58 +08:00
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data = tps6507x_pmic_read(tps, reg);
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2009-08-21 03:09:39 +08:00
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if (data < 0) {
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2010-04-08 15:04:55 +08:00
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dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
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2009-08-21 03:09:39 +08:00
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err = data;
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goto out;
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}
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data &= ~mask;
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2010-04-06 10:23:58 +08:00
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err = tps6507x_pmic_write(tps, reg, data);
|
2009-08-21 03:09:39 +08:00
|
|
|
if (err)
|
2010-04-08 15:04:55 +08:00
|
|
|
dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
|
2009-08-21 03:09:39 +08:00
|
|
|
|
|
|
|
|
out:
|
|
|
|
|
mutex_unlock(&tps->io_lock);
|
|
|
|
|
return err;
|
|
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
static int tps6507x_pmic_reg_read(struct tps6507x_pmic *tps, u8 reg)
|
2009-08-21 03:09:39 +08:00
|
|
|
{
|
|
|
|
|
int data;
|
|
|
|
|
|
|
|
|
|
mutex_lock(&tps->io_lock);
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
data = tps6507x_pmic_read(tps, reg);
|
2009-08-21 03:09:39 +08:00
|
|
|
if (data < 0)
|
2010-04-08 15:04:55 +08:00
|
|
|
dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
|
2009-08-21 03:09:39 +08:00
|
|
|
|
|
|
|
|
mutex_unlock(&tps->io_lock);
|
|
|
|
|
return data;
|
|
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
static int tps6507x_pmic_reg_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
|
2009-08-21 03:09:39 +08:00
|
|
|
{
|
|
|
|
|
int err;
|
|
|
|
|
|
|
|
|
|
mutex_lock(&tps->io_lock);
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
err = tps6507x_pmic_write(tps, reg, val);
|
2009-08-21 03:09:39 +08:00
|
|
|
if (err < 0)
|
2010-04-08 15:04:55 +08:00
|
|
|
dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
|
2009-08-21 03:09:39 +08:00
|
|
|
|
|
|
|
|
mutex_unlock(&tps->io_lock);
|
|
|
|
|
return err;
|
|
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
static int tps6507x_pmic_dcdc_is_enabled(struct regulator_dev *dev)
|
2009-08-21 03:09:39 +08:00
|
|
|
{
|
2010-04-06 10:23:58 +08:00
|
|
|
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
|
2009-08-21 03:09:39 +08:00
|
|
|
int data, dcdc = rdev_get_id(dev);
|
|
|
|
|
u8 shift;
|
|
|
|
|
|
|
|
|
|
if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
shift = TPS6507X_MAX_REG_ID - dcdc;
|
2010-04-06 10:23:58 +08:00
|
|
|
data = tps6507x_pmic_reg_read(tps, TPS6507X_REG_CON_CTRL1);
|
2009-08-21 03:09:39 +08:00
|
|
|
|
|
|
|
|
if (data < 0)
|
|
|
|
|
return data;
|
|
|
|
|
else
|
|
|
|
|
return (data & 1<<shift) ? 1 : 0;
|
|
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
static int tps6507x_pmic_ldo_is_enabled(struct regulator_dev *dev)
|
2009-08-21 03:09:39 +08:00
|
|
|
{
|
2010-04-06 10:23:58 +08:00
|
|
|
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
|
2009-08-21 03:09:39 +08:00
|
|
|
int data, ldo = rdev_get_id(dev);
|
|
|
|
|
u8 shift;
|
|
|
|
|
|
|
|
|
|
if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
shift = TPS6507X_MAX_REG_ID - ldo;
|
2010-04-06 10:23:58 +08:00
|
|
|
data = tps6507x_pmic_reg_read(tps, TPS6507X_REG_CON_CTRL1);
|
2009-08-21 03:09:39 +08:00
|
|
|
|
|
|
|
|
if (data < 0)
|
|
|
|
|
return data;
|
|
|
|
|
else
|
|
|
|
|
return (data & 1<<shift) ? 1 : 0;
|
|
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
static int tps6507x_pmic_dcdc_enable(struct regulator_dev *dev)
|
2009-08-21 03:09:39 +08:00
|
|
|
{
|
2010-04-06 10:23:58 +08:00
|
|
|
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
|
2009-08-21 03:09:39 +08:00
|
|
|
int dcdc = rdev_get_id(dev);
|
|
|
|
|
u8 shift;
|
|
|
|
|
|
|
|
|
|
if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
shift = TPS6507X_MAX_REG_ID - dcdc;
|
2010-04-06 10:23:58 +08:00
|
|
|
return tps6507x_pmic_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
|
2009-08-21 03:09:39 +08:00
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
static int tps6507x_pmic_dcdc_disable(struct regulator_dev *dev)
|
2009-08-21 03:09:39 +08:00
|
|
|
{
|
2010-04-06 10:23:58 +08:00
|
|
|
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
|
2009-08-21 03:09:39 +08:00
|
|
|
int dcdc = rdev_get_id(dev);
|
|
|
|
|
u8 shift;
|
|
|
|
|
|
|
|
|
|
if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
shift = TPS6507X_MAX_REG_ID - dcdc;
|
2010-04-06 10:23:58 +08:00
|
|
|
return tps6507x_pmic_clear_bits(tps, TPS6507X_REG_CON_CTRL1,
|
|
|
|
|
1 << shift);
|
2009-08-21 03:09:39 +08:00
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
static int tps6507x_pmic_ldo_enable(struct regulator_dev *dev)
|
2009-08-21 03:09:39 +08:00
|
|
|
{
|
2010-04-06 10:23:58 +08:00
|
|
|
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
|
2009-08-21 03:09:39 +08:00
|
|
|
int ldo = rdev_get_id(dev);
|
|
|
|
|
u8 shift;
|
|
|
|
|
|
|
|
|
|
if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
shift = TPS6507X_MAX_REG_ID - ldo;
|
2010-04-06 10:23:58 +08:00
|
|
|
return tps6507x_pmic_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
|
2009-08-21 03:09:39 +08:00
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
static int tps6507x_pmic_ldo_disable(struct regulator_dev *dev)
|
2009-08-21 03:09:39 +08:00
|
|
|
{
|
2010-04-06 10:23:58 +08:00
|
|
|
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
|
2009-08-21 03:09:39 +08:00
|
|
|
int ldo = rdev_get_id(dev);
|
|
|
|
|
u8 shift;
|
|
|
|
|
|
|
|
|
|
if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
shift = TPS6507X_MAX_REG_ID - ldo;
|
2010-04-06 10:23:58 +08:00
|
|
|
return tps6507x_pmic_clear_bits(tps, TPS6507X_REG_CON_CTRL1,
|
|
|
|
|
1 << shift);
|
2009-08-21 03:09:39 +08:00
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
static int tps6507x_pmic_dcdc_get_voltage(struct regulator_dev *dev)
|
2009-08-21 03:09:39 +08:00
|
|
|
{
|
2010-04-06 10:23:58 +08:00
|
|
|
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
|
2009-08-21 03:09:39 +08:00
|
|
|
int data, dcdc = rdev_get_id(dev);
|
|
|
|
|
u8 reg;
|
|
|
|
|
|
|
|
|
|
switch (dcdc) {
|
|
|
|
|
case TPS6507X_DCDC_1:
|
|
|
|
|
reg = TPS6507X_REG_DEFDCDC1;
|
|
|
|
|
break;
|
|
|
|
|
case TPS6507X_DCDC_2:
|
regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In TPS6507x, depending on the status of DEFDCDC{2,3} pin either
DEFDCDC{2,3}_LOW or DEFDCDC{2,3}_HIGH register needs to be read or
programmed to change the output voltage.
The current driver assumes DEFDCDC{2,3} pins are always tied low
and thus operates only on DEFDCDC{2,3}_LOW register. This need
not always be the case (as is found on OMAP-L138 EVM).
Unfortunately, software cannot read the status of DEFDCDC{2,3} pins.
So, this information is passed through platform data depending on
how the board is wired.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-07-12 20:24:06 +08:00
|
|
|
if (tps->info[dcdc]->defdcdc_default)
|
|
|
|
|
reg = TPS6507X_REG_DEFDCDC2_HIGH;
|
|
|
|
|
else
|
|
|
|
|
reg = TPS6507X_REG_DEFDCDC2_LOW;
|
2009-08-21 03:09:39 +08:00
|
|
|
break;
|
|
|
|
|
case TPS6507X_DCDC_3:
|
regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In TPS6507x, depending on the status of DEFDCDC{2,3} pin either
DEFDCDC{2,3}_LOW or DEFDCDC{2,3}_HIGH register needs to be read or
programmed to change the output voltage.
The current driver assumes DEFDCDC{2,3} pins are always tied low
and thus operates only on DEFDCDC{2,3}_LOW register. This need
not always be the case (as is found on OMAP-L138 EVM).
Unfortunately, software cannot read the status of DEFDCDC{2,3} pins.
So, this information is passed through platform data depending on
how the board is wired.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-07-12 20:24:06 +08:00
|
|
|
if (tps->info[dcdc]->defdcdc_default)
|
|
|
|
|
reg = TPS6507X_REG_DEFDCDC3_HIGH;
|
|
|
|
|
else
|
|
|
|
|
reg = TPS6507X_REG_DEFDCDC3_LOW;
|
2009-08-21 03:09:39 +08:00
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
data = tps6507x_pmic_reg_read(tps, reg);
|
2009-08-21 03:09:39 +08:00
|
|
|
if (data < 0)
|
|
|
|
|
return data;
|
|
|
|
|
|
|
|
|
|
data &= TPS6507X_DEFDCDCX_DCDC_MASK;
|
|
|
|
|
return tps->info[dcdc]->table[data] * 1000;
|
|
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
static int tps6507x_pmic_dcdc_set_voltage(struct regulator_dev *dev,
|
2009-08-21 03:09:39 +08:00
|
|
|
int min_uV, int max_uV)
|
|
|
|
|
{
|
2010-04-06 10:23:58 +08:00
|
|
|
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
|
2009-08-21 03:09:39 +08:00
|
|
|
int data, vsel, dcdc = rdev_get_id(dev);
|
|
|
|
|
u8 reg;
|
|
|
|
|
|
|
|
|
|
switch (dcdc) {
|
|
|
|
|
case TPS6507X_DCDC_1:
|
|
|
|
|
reg = TPS6507X_REG_DEFDCDC1;
|
|
|
|
|
break;
|
|
|
|
|
case TPS6507X_DCDC_2:
|
regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In TPS6507x, depending on the status of DEFDCDC{2,3} pin either
DEFDCDC{2,3}_LOW or DEFDCDC{2,3}_HIGH register needs to be read or
programmed to change the output voltage.
The current driver assumes DEFDCDC{2,3} pins are always tied low
and thus operates only on DEFDCDC{2,3}_LOW register. This need
not always be the case (as is found on OMAP-L138 EVM).
Unfortunately, software cannot read the status of DEFDCDC{2,3} pins.
So, this information is passed through platform data depending on
how the board is wired.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-07-12 20:24:06 +08:00
|
|
|
if (tps->info[dcdc]->defdcdc_default)
|
|
|
|
|
reg = TPS6507X_REG_DEFDCDC2_HIGH;
|
|
|
|
|
else
|
|
|
|
|
reg = TPS6507X_REG_DEFDCDC2_LOW;
|
2009-08-21 03:09:39 +08:00
|
|
|
break;
|
|
|
|
|
case TPS6507X_DCDC_3:
|
regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In TPS6507x, depending on the status of DEFDCDC{2,3} pin either
DEFDCDC{2,3}_LOW or DEFDCDC{2,3}_HIGH register needs to be read or
programmed to change the output voltage.
The current driver assumes DEFDCDC{2,3} pins are always tied low
and thus operates only on DEFDCDC{2,3}_LOW register. This need
not always be the case (as is found on OMAP-L138 EVM).
Unfortunately, software cannot read the status of DEFDCDC{2,3} pins.
So, this information is passed through platform data depending on
how the board is wired.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-07-12 20:24:06 +08:00
|
|
|
if (tps->info[dcdc]->defdcdc_default)
|
|
|
|
|
reg = TPS6507X_REG_DEFDCDC3_HIGH;
|
|
|
|
|
else
|
|
|
|
|
reg = TPS6507X_REG_DEFDCDC3_LOW;
|
2009-08-21 03:09:39 +08:00
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (min_uV < tps->info[dcdc]->min_uV
|
|
|
|
|
|| min_uV > tps->info[dcdc]->max_uV)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
if (max_uV < tps->info[dcdc]->min_uV
|
|
|
|
|
|| max_uV > tps->info[dcdc]->max_uV)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
for (vsel = 0; vsel < tps->info[dcdc]->table_len; vsel++) {
|
|
|
|
|
int mV = tps->info[dcdc]->table[vsel];
|
|
|
|
|
int uV = mV * 1000;
|
|
|
|
|
|
|
|
|
|
/* Break at the first in-range value */
|
|
|
|
|
if (min_uV <= uV && uV <= max_uV)
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* write to the register in case we found a match */
|
|
|
|
|
if (vsel == tps->info[dcdc]->table_len)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
data = tps6507x_pmic_reg_read(tps, reg);
|
2009-08-21 03:09:39 +08:00
|
|
|
if (data < 0)
|
|
|
|
|
return data;
|
|
|
|
|
|
|
|
|
|
data &= ~TPS6507X_DEFDCDCX_DCDC_MASK;
|
|
|
|
|
data |= vsel;
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
return tps6507x_pmic_reg_write(tps, reg, data);
|
2009-08-21 03:09:39 +08:00
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
static int tps6507x_pmic_ldo_get_voltage(struct regulator_dev *dev)
|
2009-08-21 03:09:39 +08:00
|
|
|
{
|
2010-04-06 10:23:58 +08:00
|
|
|
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
|
2009-08-21 03:09:39 +08:00
|
|
|
int data, ldo = rdev_get_id(dev);
|
|
|
|
|
u8 reg, mask;
|
|
|
|
|
|
|
|
|
|
if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
else {
|
|
|
|
|
reg = (ldo == TPS6507X_LDO_1 ?
|
|
|
|
|
TPS6507X_REG_LDO_CTRL1 : TPS6507X_REG_DEFLDO2);
|
|
|
|
|
mask = (ldo == TPS6507X_LDO_1 ?
|
|
|
|
|
TPS6507X_REG_LDO_CTRL1_LDO1_MASK :
|
|
|
|
|
TPS6507X_REG_DEFLDO2_LDO2_MASK);
|
|
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
data = tps6507x_pmic_reg_read(tps, reg);
|
2009-08-21 03:09:39 +08:00
|
|
|
if (data < 0)
|
|
|
|
|
return data;
|
|
|
|
|
|
|
|
|
|
data &= mask;
|
|
|
|
|
return tps->info[ldo]->table[data] * 1000;
|
|
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
static int tps6507x_pmic_ldo_set_voltage(struct regulator_dev *dev,
|
2009-08-21 03:09:39 +08:00
|
|
|
int min_uV, int max_uV)
|
|
|
|
|
{
|
2010-04-06 10:23:58 +08:00
|
|
|
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
|
2009-08-21 03:09:39 +08:00
|
|
|
int data, vsel, ldo = rdev_get_id(dev);
|
|
|
|
|
u8 reg, mask;
|
|
|
|
|
|
|
|
|
|
if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
else {
|
|
|
|
|
reg = (ldo == TPS6507X_LDO_1 ?
|
|
|
|
|
TPS6507X_REG_LDO_CTRL1 : TPS6507X_REG_DEFLDO2);
|
|
|
|
|
mask = (ldo == TPS6507X_LDO_1 ?
|
|
|
|
|
TPS6507X_REG_LDO_CTRL1_LDO1_MASK :
|
|
|
|
|
TPS6507X_REG_DEFLDO2_LDO2_MASK);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (min_uV < tps->info[ldo]->min_uV || min_uV > tps->info[ldo]->max_uV)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
if (max_uV < tps->info[ldo]->min_uV || max_uV > tps->info[ldo]->max_uV)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
for (vsel = 0; vsel < tps->info[ldo]->table_len; vsel++) {
|
|
|
|
|
int mV = tps->info[ldo]->table[vsel];
|
|
|
|
|
int uV = mV * 1000;
|
|
|
|
|
|
|
|
|
|
/* Break at the first in-range value */
|
|
|
|
|
if (min_uV <= uV && uV <= max_uV)
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (vsel == tps->info[ldo]->table_len)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
data = tps6507x_pmic_reg_read(tps, reg);
|
2009-08-21 03:09:39 +08:00
|
|
|
if (data < 0)
|
|
|
|
|
return data;
|
|
|
|
|
|
|
|
|
|
data &= ~mask;
|
|
|
|
|
data |= vsel;
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
return tps6507x_pmic_reg_write(tps, reg, data);
|
2009-08-21 03:09:39 +08:00
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
static int tps6507x_pmic_dcdc_list_voltage(struct regulator_dev *dev,
|
2009-08-21 03:09:39 +08:00
|
|
|
unsigned selector)
|
|
|
|
|
{
|
2010-04-06 10:23:58 +08:00
|
|
|
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
|
2009-08-21 03:09:39 +08:00
|
|
|
int dcdc = rdev_get_id(dev);
|
|
|
|
|
|
|
|
|
|
if (dcdc < TPS6507X_DCDC_1 || dcdc > TPS6507X_DCDC_3)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
if (selector >= tps->info[dcdc]->table_len)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
else
|
|
|
|
|
return tps->info[dcdc]->table[selector] * 1000;
|
|
|
|
|
}
|
|
|
|
|
|
2010-04-06 10:23:58 +08:00
|
|
|
static int tps6507x_pmic_ldo_list_voltage(struct regulator_dev *dev,
|
2009-08-21 03:09:39 +08:00
|
|
|
unsigned selector)
|
|
|
|
|
{
|
2010-04-06 10:23:58 +08:00
|
|
|
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
|
2009-08-21 03:09:39 +08:00
|
|
|
int ldo = rdev_get_id(dev);
|
|
|
|
|
|
|
|
|
|
if (ldo < TPS6507X_LDO_1 || ldo > TPS6507X_LDO_2)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
|
|
if (selector >= tps->info[ldo]->table_len)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
else
|
|
|
|
|
return tps->info[ldo]->table[selector] * 1000;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Operations permitted on VDCDCx */
|
2010-04-06 10:23:58 +08:00
|
|
|
static struct regulator_ops tps6507x_pmic_dcdc_ops = {
|
|
|
|
|
.is_enabled = tps6507x_pmic_dcdc_is_enabled,
|
|
|
|
|
.enable = tps6507x_pmic_dcdc_enable,
|
|
|
|
|
.disable = tps6507x_pmic_dcdc_disable,
|
|
|
|
|
.get_voltage = tps6507x_pmic_dcdc_get_voltage,
|
|
|
|
|
.set_voltage = tps6507x_pmic_dcdc_set_voltage,
|
|
|
|
|
.list_voltage = tps6507x_pmic_dcdc_list_voltage,
|
2009-08-21 03:09:39 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Operations permitted on LDOx */
|
2010-04-06 10:23:58 +08:00
|
|
|
static struct regulator_ops tps6507x_pmic_ldo_ops = {
|
|
|
|
|
.is_enabled = tps6507x_pmic_ldo_is_enabled,
|
|
|
|
|
.enable = tps6507x_pmic_ldo_enable,
|
|
|
|
|
.disable = tps6507x_pmic_ldo_disable,
|
|
|
|
|
.get_voltage = tps6507x_pmic_ldo_get_voltage,
|
|
|
|
|
.set_voltage = tps6507x_pmic_ldo_set_voltage,
|
|
|
|
|
.list_voltage = tps6507x_pmic_ldo_list_voltage,
|
2009-08-21 03:09:39 +08:00
|
|
|
};
|
|
|
|
|
|
2010-04-08 15:04:55 +08:00
|
|
|
static __devinit
|
|
|
|
|
int tps6507x_pmic_probe(struct platform_device *pdev)
|
2009-08-21 03:09:39 +08:00
|
|
|
{
|
2010-04-08 15:04:55 +08:00
|
|
|
struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent);
|
2009-08-21 03:09:39 +08:00
|
|
|
static int desc_id;
|
regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In TPS6507x, depending on the status of DEFDCDC{2,3} pin either
DEFDCDC{2,3}_LOW or DEFDCDC{2,3}_HIGH register needs to be read or
programmed to change the output voltage.
The current driver assumes DEFDCDC{2,3} pins are always tied low
and thus operates only on DEFDCDC{2,3}_LOW register. This need
not always be the case (as is found on OMAP-L138 EVM).
Unfortunately, software cannot read the status of DEFDCDC{2,3} pins.
So, this information is passed through platform data depending on
how the board is wired.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-07-12 20:24:06 +08:00
|
|
|
struct tps_info *info = &tps6507x_pmic_regs[0];
|
2009-08-21 03:09:39 +08:00
|
|
|
struct regulator_init_data *init_data;
|
|
|
|
|
struct regulator_dev *rdev;
|
2010-04-06 10:23:58 +08:00
|
|
|
struct tps6507x_pmic *tps;
|
2010-04-06 10:23:57 +08:00
|
|
|
struct tps6507x_board *tps_board;
|
2009-08-21 03:09:39 +08:00
|
|
|
int i;
|
2010-02-24 15:38:12 +08:00
|
|
|
int error;
|
2009-08-21 03:09:39 +08:00
|
|
|
|
2010-04-06 10:23:57 +08:00
|
|
|
/**
|
|
|
|
|
* tps_board points to pmic related constants
|
|
|
|
|
* coming from the board-evm file.
|
|
|
|
|
*/
|
|
|
|
|
|
2010-04-08 15:04:55 +08:00
|
|
|
tps_board = dev_get_platdata(tps6507x_dev->dev);
|
2010-04-06 10:23:57 +08:00
|
|
|
if (!tps_board)
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
2009-08-21 03:09:39 +08:00
|
|
|
/**
|
|
|
|
|
* init_data points to array of regulator_init structures
|
|
|
|
|
* coming from the board-evm file.
|
|
|
|
|
*/
|
2010-04-06 10:23:57 +08:00
|
|
|
init_data = tps_board->tps6507x_pmic_init_data;
|
2009-08-21 03:09:39 +08:00
|
|
|
if (!init_data)
|
2010-04-06 10:23:57 +08:00
|
|
|
return -EINVAL;
|
2009-08-21 03:09:39 +08:00
|
|
|
|
|
|
|
|
tps = kzalloc(sizeof(*tps), GFP_KERNEL);
|
|
|
|
|
if (!tps)
|
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
|
|
mutex_init(&tps->io_lock);
|
|
|
|
|
|
|
|
|
|
/* common for all regulators */
|
2010-04-08 15:04:55 +08:00
|
|
|
tps->mfd = tps6507x_dev;
|
2009-08-21 03:09:39 +08:00
|
|
|
|
|
|
|
|
for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++, init_data++) {
|
|
|
|
|
/* Register the regulators */
|
|
|
|
|
tps->info[i] = info;
|
regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In TPS6507x, depending on the status of DEFDCDC{2,3} pin either
DEFDCDC{2,3}_LOW or DEFDCDC{2,3}_HIGH register needs to be read or
programmed to change the output voltage.
The current driver assumes DEFDCDC{2,3} pins are always tied low
and thus operates only on DEFDCDC{2,3}_LOW register. This need
not always be the case (as is found on OMAP-L138 EVM).
Unfortunately, software cannot read the status of DEFDCDC{2,3} pins.
So, this information is passed through platform data depending on
how the board is wired.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-07-12 20:24:06 +08:00
|
|
|
if (init_data->driver_data) {
|
|
|
|
|
struct tps6507x_reg_platform_data *data =
|
|
|
|
|
init_data->driver_data;
|
|
|
|
|
tps->info[i]->defdcdc_default = data->defdcdc_default;
|
|
|
|
|
}
|
|
|
|
|
|
2009-08-21 03:09:39 +08:00
|
|
|
tps->desc[i].name = info->name;
|
|
|
|
|
tps->desc[i].id = desc_id++;
|
|
|
|
|
tps->desc[i].n_voltages = num_voltages[i];
|
|
|
|
|
tps->desc[i].ops = (i > TPS6507X_DCDC_3 ?
|
2010-04-06 10:23:58 +08:00
|
|
|
&tps6507x_pmic_ldo_ops : &tps6507x_pmic_dcdc_ops);
|
2009-08-21 03:09:39 +08:00
|
|
|
tps->desc[i].type = REGULATOR_VOLTAGE;
|
|
|
|
|
tps->desc[i].owner = THIS_MODULE;
|
|
|
|
|
|
|
|
|
|
rdev = regulator_register(&tps->desc[i],
|
2010-04-08 15:04:55 +08:00
|
|
|
tps6507x_dev->dev, init_data, tps);
|
2009-08-21 03:09:39 +08:00
|
|
|
if (IS_ERR(rdev)) {
|
2010-04-08 15:04:55 +08:00
|
|
|
dev_err(tps6507x_dev->dev,
|
|
|
|
|
"failed to register %s regulator\n",
|
|
|
|
|
pdev->name);
|
2010-02-24 15:38:12 +08:00
|
|
|
error = PTR_ERR(rdev);
|
|
|
|
|
goto fail;
|
2009-08-21 03:09:39 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Save regulator for cleanup */
|
|
|
|
|
tps->rdev[i] = rdev;
|
|
|
|
|
}
|
|
|
|
|
|
2010-04-08 15:04:55 +08:00
|
|
|
tps6507x_dev->pmic = tps;
|
2009-08-21 03:09:39 +08:00
|
|
|
|
|
|
|
|
return 0;
|
2010-02-24 15:38:12 +08:00
|
|
|
|
|
|
|
|
fail:
|
|
|
|
|
while (--i >= 0)
|
|
|
|
|
regulator_unregister(tps->rdev[i]);
|
|
|
|
|
|
|
|
|
|
kfree(tps);
|
|
|
|
|
return error;
|
2009-08-21 03:09:39 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
2010-04-06 10:23:58 +08:00
|
|
|
* tps6507x_remove - TPS6507x driver i2c remove handler
|
2009-08-21 03:09:39 +08:00
|
|
|
* @client: i2c driver client device structure
|
|
|
|
|
*
|
|
|
|
|
* Unregister TPS driver as an i2c client device driver
|
|
|
|
|
*/
|
2010-04-08 15:04:55 +08:00
|
|
|
static int __devexit tps6507x_pmic_remove(struct platform_device *pdev)
|
2009-08-21 03:09:39 +08:00
|
|
|
{
|
2010-04-08 15:04:55 +08:00
|
|
|
struct tps6507x_dev *tps6507x_dev = platform_get_drvdata(pdev);
|
|
|
|
|
struct tps6507x_pmic *tps = tps6507x_dev->pmic;
|
2009-08-21 03:09:39 +08:00
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < TPS6507X_NUM_REGULATOR; i++)
|
|
|
|
|
regulator_unregister(tps->rdev[i]);
|
|
|
|
|
|
|
|
|
|
kfree(tps);
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2010-04-08 15:04:55 +08:00
|
|
|
static struct platform_driver tps6507x_pmic_driver = {
|
2009-08-21 03:09:39 +08:00
|
|
|
.driver = {
|
2010-04-08 15:04:55 +08:00
|
|
|
.name = "tps6507x-pmic",
|
2009-08-21 03:09:39 +08:00
|
|
|
.owner = THIS_MODULE,
|
|
|
|
|
},
|
2010-04-06 10:23:58 +08:00
|
|
|
.probe = tps6507x_pmic_probe,
|
|
|
|
|
.remove = __devexit_p(tps6507x_pmic_remove),
|
2009-08-21 03:09:39 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
2010-04-06 10:23:58 +08:00
|
|
|
* tps6507x_pmic_init
|
2009-08-21 03:09:39 +08:00
|
|
|
*
|
|
|
|
|
* Module init function
|
|
|
|
|
*/
|
2010-04-06 10:23:58 +08:00
|
|
|
static int __init tps6507x_pmic_init(void)
|
2009-08-21 03:09:39 +08:00
|
|
|
{
|
2010-04-08 15:04:55 +08:00
|
|
|
return platform_driver_register(&tps6507x_pmic_driver);
|
2009-08-21 03:09:39 +08:00
|
|
|
}
|
2010-04-06 10:23:58 +08:00
|
|
|
subsys_initcall(tps6507x_pmic_init);
|
2009-08-21 03:09:39 +08:00
|
|
|
|
|
|
|
|
/**
|
2010-04-06 10:23:58 +08:00
|
|
|
* tps6507x_pmic_cleanup
|
2009-08-21 03:09:39 +08:00
|
|
|
*
|
|
|
|
|
* Module exit function
|
|
|
|
|
*/
|
2010-04-06 10:23:58 +08:00
|
|
|
static void __exit tps6507x_pmic_cleanup(void)
|
2009-08-21 03:09:39 +08:00
|
|
|
{
|
2010-04-08 15:04:55 +08:00
|
|
|
platform_driver_unregister(&tps6507x_pmic_driver);
|
2009-08-21 03:09:39 +08:00
|
|
|
}
|
2010-04-06 10:23:58 +08:00
|
|
|
module_exit(tps6507x_pmic_cleanup);
|
2009-08-21 03:09:39 +08:00
|
|
|
|
|
|
|
|
MODULE_AUTHOR("Texas Instruments");
|
|
|
|
|
MODULE_DESCRIPTION("TPS6507x voltage regulator driver");
|
2009-08-24 17:31:34 +08:00
|
|
|
MODULE_LICENSE("GPL v2");
|
2010-04-08 15:04:55 +08:00
|
|
|
MODULE_ALIAS("platform:tps6507x-pmic");
|