Commit graph

24 commits

Author SHA1 Message Date
Patrick Delaunay
22929e1266 drivers: cosmetic: Convert SPDX license tags to Linux Kernel style
Complete in the drivers directory the work started with
commit 83d290c56f ("SPDX: Convert all of our single
license tags to Linux Kernel style").

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-10-28 09:26:39 -04:00
Fabrice Gasnier
93cf0ae775 power: regulator: Add support for stm32-vrefbuf
Add regulator driver for STM32 voltage reference buffer which can be
used as voltage reference for ADCs, DACs and external components through
dedicated VREF+ pin.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-05-08 09:07:39 -04:00
Christophe Kerello
069f0b6354 power: regulator: stpmu1: Introduce stpmu1 driver
Enable support for the regulator functions of the STPMU1X PMIC. The
driver implements get/set api for the various BUCKS and LDOs supported
by the PMIC device. This driver is controlled by a device tree node
which includes voltage limits.

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-05-08 09:07:38 -04:00
Peng Fan
a35332fa28 power: pmic/regulator allow dm be omitted by SPL
Allow the dm driver be omitted by SPL.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2018-02-04 12:00:58 +01:00
Jaehoon Chung
60599ea6cd power: regulator: s2mps11: add a regulator driver for s2mps11
exynos5422 has the s2mps11 PMIC.
s2mps11 pmic has the 10-BUCK and 38-LDO regulators.
Each IP and devices in exynos5422 can be controlled by each regulators.
This patch is support for s2mps11 regulator driver.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Anand Moon <linux.amoon@gmail.com>
2018-01-24 16:07:19 +09:00
Felix Brack
854dfbf99b power: pmic/regulator: Add basic support for TPS65910
Texas Instrument's TPS65910 PMIC contains 3 buck DC-DC converts, one
boost DC-DC converter and 8 LDOs. This patch implements driver model
support for the TPS65910 PMIC and its regulators making the get/set
API for regulator value/enable available.
This patch depends on the patch "am33xx: Add a function to query MPU
voltage in uV" to build correctly. For boards relying on the DT
include file tps65910.dtsi the v3 patch "power: extend prefix match
to regulator-name property" and an appropriate regulator naming is
also required.

Signed-off-by: Felix Brack <fb@ltec.ch>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-12-12 19:53:45 -07:00
Jean-Jacques Hiblot
8ff7763d62 regulator: pbias: Add PBIAS regulator for proper voltage switching on MMC1
In the TI SOCs a PBIAS cell exists to provide a bias voltage to the MMC1
IO cells. Without this bias voltage these I/O cells can not function
properly. The PBIAS cell is controlled by software.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-09-22 23:23:54 +09:00
Simon Glass
deea211aec power: Add a regulator driver for the as3722 PMIC
This pmic includes regulators which should have their own driver. Add
a driver to support these.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1
Tested-by: Stephen Warren <swarren@nvidia.com>
2017-07-28 12:02:47 -06:00
Keerthy
2dd9dc02a3 power: regulator: lp87565: add regulator support
The driver provides regulator set/get voltage
enable/disable functions for lp87565 family of PMICs.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2017-06-09 20:25:16 +09:00
Jacob Chen
453c5a927c power: rk808: rename to rk8xx
Since this driver can be used for rk8xx series pmic,
let's rename rk808 to rk8xx, to make it clear.

Configs parts are done by sed -i "s/RK808/RK8XX/g" `grep RK808 -lr ./`

Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com>
2017-05-10 13:37:22 -06:00
Keerthy
99785de83e power: regulator: lp873x: Add regulator support
The driver provides regulator set/get voltage
enable/disable functions for lp873x family of PMICs.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-10-11 10:17:06 -06:00
Keerthy
884d88bc8b power: regulator: palmas: Add regulator support
The driver provides regulator set/get voltage
enable/disable functions for palmas family of PMICs.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-10-11 10:17:05 -06:00
Keerthy
477dfe2ffc power: regulator: Add support for gpio regulators
Add support for gpio regulators. As of now this driver caters
to gpio regulators with one gpio. Supports setting voltage values to gpio
regulators and retrieving the values.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-10-11 10:17:04 -06:00
Kever Yang
1a01695615 power: regulator: add pwm regulator
add driver support for pwm regulator.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-10-01 18:35:01 -06:00
Simon Glass
1f2b4b06ae dm: power: Allow regulators to be omitted from SPL
For some boards the pmic interface is useful but the regulator interface
(which comes with it) is too large. Allow them to be separated such that
SPL can decide which it needs.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-21 20:42:35 -07:00
Simon Glass
e1227764cd power: Add support for RK808 regulators
Add regulator support for the RK808 PMIC. It integrated 4 BUCKs and 8 LDOs
all of which are supported by this driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-21 20:42:34 -07:00
Simon Glass
9119820b6b power: regulator: Add a driver for ACT8846 regulators
Add a full regulator driver for the ACT8846. This provides easy access to
voltage and current settings for each regulator.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-09-02 21:28:23 -06:00
Peng Fan
8fa46350a4 power: regulator: add pfuze100 support
1. Add new regulator driver pfuze100.
   * Introduce struct pfuze100_regulator_desc for maintaining info
     for one regulator.
2. Add new Kconfig entry DM_REGULATOR_PFUZE100 for pfuze100.
3. This driver intends to support PF100, PF200 and PF3000.
4. Add related macro definition in pfuze header file.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
2015-08-12 11:04:58 +02:00
Simon Glass
f615e6a64d dm: power: Add support for S5M8767 regulators
This PMIC is used with SoCs which need a combination of BUCKs and LDOs. The
driver supports changing voltage and enabling/disabling each regulator. It
supports the standard device tree binding and supports driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
2015-08-05 21:06:12 -06:00
Simon Glass
1c88b67ec8 dm: power: Add support for TPS65090 FETs
The TPS65090 has 7 FETs which are modelled as regulators. This allows them
to be controlled by drivers easier, accessed through the 'regulator' command
and used by other drivers.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
2015-08-05 21:06:12 -06:00
Przemyslaw Marczak
5d387d0df9 sandbox: add: sandbox PMIC device drivers: I2C emul, pmic, regulator
This commit adds emulation of sandbox PMIC device, which includes:
- PMIC I2C emulation driver
- PMIC I/O driver (UCLASS_PMIC)
- PMIC regulator driver (UCLASS_REGULATOR)

The sandbox PMIC has 12 significant registers and 4 as padding to 16 bytes,
which allows using 'i2c md' command with the default count (16).

The sandbox PMIC provides regulators:
- 2x BUCK
- 2x LDO

Each, with adjustable output:
- Enable state
- Voltage
- Current limit (LDO1/BUCK1 only)
- Operation mode (different for BUCK and LDO)

Each attribute has it's own register, beside the enable state, which depends
on operation mode.

The header file: sandbox_pmic.h includes PMIC's default register values,
which are set on i2c pmic emul driver's probe() method.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested on sandbox:
Tested-by: Simon Glass <sjg@chromium.org>
2015-05-14 19:58:34 -06:00
Przemyslaw Marczak
9923a8b450 dm: regulator: add fixed voltage regulator driver
This driver implements regulator operations for fixed Voltage/Current
value regulators. beside the standard regulator constraints, which are
put into the uclass platform data, a typical fixed regulator node provides
few additional properties like:
- gpio
- gpio-open-drain
- enable-active-high
- startup-delay-us
The only 'gpio' is used by this driver and is kept in structure of type
'fixed_regulator_platdata', as a device platform data (dev->platdata).

The driver implements:
- get_value
- get_current
- get_enable
- set_enable

The regulator calls and commands can be used for fixed-regulator devices,
and the proper error will be returned for prohibited.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-05-14 18:49:38 -06:00
Przemyslaw Marczak
1757df4693 dm: regulator: add max77686 regulator driver
This commit adds support to MAX77686 regulator driver,
based on a driver model regulator's API. It implements
almost all regulator operations, beside those for setting
and geting the Current value.
For proper bind and operation it requires the MAX77686 PMIC driver.

New file: drivers/power/regulator/max77686.c
New config: CONFIG_DM_REGULATOR_MAX77686

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-05-14 18:49:38 -06:00
Przemyslaw Marczak
af41e8db26 dm: regulator: add implementation of driver model regulator uclass
This commit introduces the implementation of dm regulator API.
Device tree support allows for auto binding. And by the basic
uclass operations, it allows to driving the devices in a common
way. For detailed informations, please look into the header file.

Core files:
- drivers/power/regulator-uclass.c - provides regulator common functions api
- include/power/regulator.h - define all structures required by the regulator

Changes:
- new uclass-id: UCLASS_REGULATOR
- new config: CONFIG_DM_REGULATOR

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-05-14 18:49:37 -06:00