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| author | Anuj Aggarwal <anuj.aggarwal@ti.com> | 2010-07-12 17:54:06 +0530 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2010-07-28 15:09:26 +0100 |
| commit | 7d14831e21060fbfbfe8453460ac19205f4ce1c2 (patch) | |
| tree | f62423f7c13f9cfe1b555638dda8ab17fbca4777 /include/linux/regulator | |
| parent | e9a1c5129de1caf4526b8df5f200ff628b2ffab4 (diff) | |
| download | linux-3.10-7d14831e21060fbfbfe8453460ac19205f4ce1c2.tar.gz linux-3.10-7d14831e21060fbfbfe8453460ac19205f4ce1c2.tar.bz2 linux-3.10-7d14831e21060fbfbfe8453460ac19205f4ce1c2.zip | |
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>
Diffstat (limited to 'include/linux/regulator')
| -rw-r--r-- | include/linux/regulator/tps6507x.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/linux/regulator/tps6507x.h b/include/linux/regulator/tps6507x.h new file mode 100644 index 00000000000..4892f591bab --- /dev/null +++ b/include/linux/regulator/tps6507x.h @@ -0,0 +1,32 @@ +/* + * tps6507x.h -- Voltage regulation for the Texas Instruments TPS6507X + * + * Copyright (C) 2010 Texas Instruments, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef REGULATOR_TPS6507X +#define REGULATOR_TPS6507X + +/** + * tps6507x_reg_platform_data - platform data for tps6507x + * @defdcdc_default: Defines whether DCDC high or the low register controls + * output voltage by default. Valid for DCDC2 and DCDC3 outputs only. + */ +struct tps6507x_reg_platform_data { + bool defdcdc_default; +}; + +#endif |