Commit graph

142 commits

Author SHA1 Message Date
Simon Glass
c05ed00afb common: Drop linux/delay.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Simon Glass
f7ae49fc4f common: Drop log.h from common header
Move this header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:18 -04:00
Fabio Estevam
417ea635dc pmic: pfuze100: Change error message level to debug
In some cases U-Boot runs the same binary on different board versions.

In wandboard, for example, there are versions with the PFUZE100 PMIC
populated and others without it.

When the PMIC is not present, it is not really useful to get PMIC error,
so change the error message level to debug instead.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Tested-by: Heiko Schocher <hs@denx.de>
2020-04-18 12:59:37 +02:00
Tero Kristo
8cd10a494f power: pmic: tps65941: Add support for probing the child devices
TPS65941 can have child devices under it (like the ESM support), so
probe these once the master pmic node completes probe.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2020-03-03 13:08:14 +05:30
Simon Glass
336d4615f8 dm: core: Create a new header file for 'compat' features
At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.

Move the compatibility features into a separate header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Simon Glass
eb7387ae14 sandbox: pmic: Correct i2c pmic emulator platdata method
This currently reads the uclass's private data in the ofdata_to_platdata
method which is not allowed, since the uclass has not read it from the
device tree. This happens in the probe method.

Fix it by adding a probe() method and moving the code there.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Martin Fuzzey
483880c490 power: pmic: add driver for Dialog DA9063 PMIC
This adds the basic register access operations and child regulator
binding (if a regulator driver exists).

Robert Beckett: simplify accesses by using bottom bit of address as
offset overflow. This avoids the need to track which page we are on.
Add an option CONFIG_SPL_DM_PMIC_DA9063.

Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
2020-01-27 19:54:20 -05:00
Ye Li
22172f6b7f power: Add new PMIC PCA9450 driver
PCA9450 PMIC series is used to support iMX8MM (PCA9450A) and
iMX8MN (PCA9450B). Add the PMIC driver for both PCA9450A and PCA9450B.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
2020-01-08 13:20:08 +01:00
Simon Glass
1045315df0 common: Move get_ticks() function out of common.h
This function belongs in time.h so move it over and add a comment.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-02 18:23:13 -05:00
Vasily Khoruzhick
5ef1e02e99 power: fan53555: add support for Silergy SYR82X and SYR83X
SYR82X and SYR83X are almost identical to FAN53555, the only difference
is different die ID and revision, voltage ranges and steps.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-11-23 22:29:49 +08:00
Tom Rini
086e391bc4 Merge tag 'u-boot-rockchip-20191110' of https://gitlab.denx.de/u-boot/custodians/u-boot-rockchip
- Add support for rockchip pmic rk805,rk809, rk816, rk817
- Add rk3399 board Leez support
- Fix bug in rk3328 ram driver
- Adapt SPL to support ATF bl31 with entry at 0x40000
- Fix the u8 type comparision with '-1'.
- Fix checkpatch warning for multi blank line and review signature.
2019-11-11 14:19:32 -05:00
Joseph Chen
ee30068fa5 power: pmic: rk809: support rk809 pmic
The RK809 is a Power Management IC (PMIC) for multimedia
and handheld devices. They contains the following components:
    - Regulators(5*BUCKs, 9*LDOs, 2*SWITCHes)
    - RTC
    - Clocking

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-11-10 20:34:10 +08:00
Joseph Chen
b4a35574b3 power: pmic: rk817: support rk817 pmic
The RK817 is a Power Management IC (PMIC) for multimedia
and handheld devices. They contains the following components:
    - Regulators(4*BUCKs, 1* BOOST, 9*LDOs, 1*SWITCH)
    - RTC
    - Clocking

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-11-10 20:33:52 +08:00
Elaine Zhang
b62280745e power: pmic: rk805: support rk805 pmic
The RK805 are a Power Management IC (PMIC) for multimedia
and handheld devices. They contains the following components:
    - Regulators(4*BUCKs, 3*LDOs)
    - RTC
    - Clocking

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-11-10 20:32:51 +08:00
Elaine Zhang
addd062bea power: pmic: rk816: support rk816 pmic
The RK816 is a Power Management IC (PMIC) for multimedia
and handheld devices. They contains the following components:
    - Regulators(4*BUCKs, 1*BOOST, 6*LDOs, 1*SWITCH)
    - RTC
    - Clocking

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-11-10 20:32:41 +08:00
Keerthy
6b86dd0c1e power: pmic: tps65941: Add support for tps65941 family of PMICs
Add support to bind the regulators/child nodes with the pmic.

Signed-off-by: Keerthy <j-keerthy@ti.com>
2019-11-07 18:39:16 -05:00
Peng Fan
672fc540cd power: pmic: Kconfig: add CONFIG_SPL_DM_PMIC_BD71837
Add CONFIG_SPL_DM_PMIC_BD71837 to make this driver could be
used in SPL stage

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2019-11-03 17:04:16 +01:00
Peng Fan
e0f724f718 pmic: bd71837: drop DEBUG macro
Drop DEBUG macro definition which is used for debug purpose.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2019-11-03 17:04:16 +01:00
Patrick Delaunay
ef32dcf119 stpmic1: simplify stpmic1_sysreset_request
Retrieve parent device from dev->parent instead of
calling uclass_get_device_by_driver()

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 11:19:23 +02:00
Patrick Delaunay
234a60244c pmu: stpmic1: change specific NVM api to MISC
Use MISC u-class to export the NVM register (starting at 0xF8 offset)
and avoid specific API.
- SHADOW have offset < 0.
- NVM have register > 0

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-27 11:19:23 +02:00
Urja Rannikko
b8050511c6 sysreset: move stm32mp sysreset poweroff implementation to sysreset uclass
This is a generic implementation. Add CONFIG_SYSRESET_CMD_POWEROFF
to signal when we need it. Enable it from the STPMIC1 config and in
sandbox.

The config flag is transitionary, that is it can be removed after all
poweroff implementations use sysreset, and just have CMD_POWEROFF depend
on sysreset.

Signed-off-by: Urja Rannikko <urjaman@gmail.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Tested-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-19 12:43:26 +08:00
Matti Vaittinen
21b02414f1 regulator: bd718x7: support ROHM BD71837 and BD71847 PMICs
BD71837 and BD71847 is PMIC intended for powering single-core,
dual-core, and quad-core SoC’s such as NXP-i.MX 8M. BD71847
is used for example on NXP imx8mm EVK.

Add regulator driver for ROHM BD71837 and BD71847 PMICs.
BD71837 contains 8 bucks and 7 LDOS. BD71847 is reduced
version containing 6 bucks and 6 LDOs. Voltages for DVS
bucks (1-4 on BD71837, 1 and 2 on BD71847) can be adjusted
when regulators are enabled. For other bucks and LDOs we may
have over- or undershooting if voltage is adjusted when
regulator is enabled. Thus this is prevented by default.

BD718x7 has a quirk which may leave power output disabled
after reset if enable/disable state was controlled by SW.
Thus the SW control is only allowed for BD71837  bucks
3 and 4 by default. The impact of this limitation must be
evaluated board-by board and restrictions may need to be
modified. (Linux driver get's these limitations from DT and we
may want to implement same on u-Boot driver).

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-07-19 15:18:47 +02:00
Tom Rini
a9a3a37f92 - syscon: add support for power off
- stm32mp1: add op-tee config
 - stm32mp1: add specific commands: stboard and stm32key
 - add stm32 mailbox driver
 - solve many stm32 warnings when building with W=1
 - update stm32 gpio driver
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Merge tag 'u-boot-stm32-20190712' of https://gitlab.denx.de/u-boot/custodians/u-boot-stm

- syscon: add support for power off
- stm32mp1: add op-tee config
- stm32mp1: add specific commands: stboard and stm32key
- add stm32 mailbox driver
- solve many stm32 warnings when building with W=1
- update stm32 gpio driver
2019-07-14 09:09:49 -04:00
Keerthy
2463874883 power: pmic: Kconfig: Add SPL_PMIC configs for palmas/lp873x/lp87565
Add SPL_PMIC configs for palmas/lp873x/lp87565. These were missing
and the Makefile already assumes them to be defined. Add the corresponding
SPL config options. This enables the pmics in SPL.

Signed-off-by: Keerthy <j-keerthy@ti.com>
2019-07-13 11:11:28 -04:00
Patrick Delaunay
82cd1a2a04 pmic: stpmic1: add support for SYSRESET_POWER_OFF
Adds support for SYSRESET_POWER_OFF = PMIC power off used by command
power off and introduced by commit 751fed426f ("sysreset: Add a way
to find the last reset").
The driver use SYSRESET_POWER for the PMIC-level power cycle, with restart.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-07-12 11:18:53 +02:00
Matti Vaittinen
1023c8739b regulator: bd71837: copy the bd71837 pmic driver from NXP imx u-boot
https://source.codeaurora.org/external/imx/uboot-imx

cherry picked, styled and merged commits:
- MLK-18387 pmic: Add pmic driver for BD71837: e9a3bec2e95a
- MLK-18590 pmic: bd71837: Change to use new fdt API: acdc5c297a96

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-06-11 10:42:48 +02:00
Patrick Delaunay
31e45a1a9e stpmic1: add NVM update support in fuse command
Add functions to read/update the non volatile memory of STPMIC1
(8 bytes-register at 0xF8 address) and allow access
with fuse command (bank=1, word > 0xF8).

For example:

STM32MP> fuse read 1 0xf8 8
Reading bank 1:

Word 0x000000f8: 000000ee 00000092 000000c0 00000002
Word 0x000000fc: 000000f2 00000080 00000002 00000033

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-12 16:09:13 +02:00
Patrick Delaunay
8811583e04 pmic: stpmu1: add power switch off support
Add sysreset support, and support power switch off request,
needed by poweroff command.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-12 16:09:13 +02:00
Patrick Delaunay
42f01aacfd power: rename stpmu1 to official name stpmic1
Alignment with kernel driver name & binding
introduced by https://patchwork.kernel.org/cover/10761943/
to use the final marketing name = STPMIC1.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
2019-04-12 16:09:13 +02:00
Patrick Delaunay
d46c22b3fd power: stpmu1: rename files to stpmic1
Prepare file modification for kernel alignment and
rename driver to stpmic1.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
2019-04-12 16:09:13 +02:00
Tom Rini
8bf3c2442b Improvements:
- init DRAM for RK322x in SPL
 - add FAN53555 PMIC/regulator driver
 - update MicroCrystal RV3029 driver to Kconfig and sync from Linux
 - add bootcount uclass and first DM-driver for bootcount
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Merge tag 'for-master-20181210' of git://git.denx.de/u-boot-rockchip

Improvements:
- init DRAM for RK322x in SPL
- add FAN53555 PMIC/regulator driver
- update MicroCrystal RV3029 driver to Kconfig and sync from Linux
- add bootcount uclass and first DM-driver for bootcount
2018-12-10 10:19:09 -05:00
Philipp Tomsich
dfb0a70a1a power: add FAN53555 family support
This adds a driver for the FAN53555 family of regulators and wraps it
in a PMIC implementation.

While these devices support a 'normal' and 'suspend' mode (controlled
via an external pin) to switch between two programmable voltages, this
incarnation of the driver assumes that the device is always operating
in 'normal' mode.

Only setting/reading the programmed voltage is supported at this time
and the following device functionality remains unsupported:
  - switching the selected voltage (via a GPIO)
  - disabling the voltage output via software-control
This matches the functionality of the Linux driver.

Tested on a RK3399-Q7 (with 'option 5' devices): setting voltages from
the U-Boot shell and verifying output voltages on the board.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
2018-12-10 10:04:45 +01:00
Jean-Jacques Hiblot
fb1b7712ad power: make most tps drivers and the twl4030 driver compatible with DM_I2C
Those driver are not DM drivers per se (not using the PMIC/regulator
framework) and are using the legacy I2C API. Make them compatible with
the DM_I2C API.

This impacts the following drivers:
- palmas (used by am57xx/dra7xx evms)
- tps65218 (used by am43xx evms)
- tps65217 and tps65910 (used by am335x evms and am335x boneblack vboot)
- twl4030 (used by omap3_logicpd)
- tps65217 (used by brppt1)
- twl6030

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
2018-12-10 06:17:30 +01:00
Simon Glass
031a650e13 dm: sandbox: i2c: Use new emulator parent uclass
Update the device tree, sandbox i2c driver and tests to use the new
emulation parent to hold emulators.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-11-29 09:30:05 -07:00
Simon Glass
c83c436de0 power: pmic: Correct debug/error output
There is a newline missing from quite a few printf() strings in these pmic
files. Fix them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
2018-11-29 09:30:05 -07:00
Michal Simek
b8448051df Kconfig: Remove trailing whitespaces in prompt
Remove additional trailing whitespaces in prompt reported by kconfiglib:

warning: DM_PMIC_SANDBOX (defined at drivers/power/pmic/Kconfig:133) has
leading or trailing whitespace in its prompt
warning: <choice> (defined at dts/Kconfig:204) has leading or trailing
whitespace in its prompt

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Felix Brack <fb@ltec.ch>
2018-07-30 07:18:46 -04:00
Trent Piepho
7da7ff5491 power: pmic: Let PFUZE3000 see all 256 registers
The PFUZE3000 uses registers addresses up to 0xff.

The DM pfuze100 driver supports both pfuze100 and pfuze3000.  Allow it
to use the device type to return the correct number of registers.

Also rename the too generic PMIC_NUM_OF_REGS enumeration value for
pfuze3000 to match the other "PFUZE3000_" prefixed enumerations and the
pfuze100 enumeration value PFUZE100_NUM_OF_REGS.

Cc: Peng Fan <Peng.Fan@freescale.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Trent Piepho <tpiepho@impinj.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-06-27 09:47:46 +02:00
Lukasz Majewski
a65e644033 sandbox: Rewrite i2c_pmic_emul.c to support PMIC with 3 bytes transmission
This change enables support for MC34708 PMIC in sandbox. Now we can
emulate the I2C transfers larger than 1 byte.

Notable changes for this driver:

- From now on the register number is not equal to index in the buffer,
  which emulates the PMIC registers

- The PMIC register's pool is now dynamically allocated up till
  64 regs * 3 bytes each = 192 B

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-18 08:27:26 +02:00
Lukasz Majewski
c57a226ac4 pmic: dm: Add support for MC34708 for PMIC DM
This patch adds support for MC34708 PMIC, to be used with driver model
(DM).

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-18 08:27:26 +02:00
Lukasz Majewski
655b24cea6 pmic: dm: Rewrite pmic_reg_{read|write|clrsetbits} to support 3 bytes transmissions
This commit provides support for transmissions larger than 1 byte for
PMIC devices used with DM (e.g. MC34708 from NXP).

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-18 08:27:26 +02:00
Lukasz Majewski
b8a6d6777b pmic: Add support for setting transmission length in uclass private data
The struct uc_pmic_priv's trans_len field stores the number of types to
be transmitted per PMIC transfer.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-18 08:27:26 +02:00
Tom Rini
14249635b6 Merge git://git.denx.de/u-boot-mmc 2018-05-08 13:47:39 -04:00
Patrice Chotard
1f0dfa1fa0 power: pmic: stpmu1: Add regulator bindings
Add regulator bindings to get access to regulator managed
by drivers/power/regulator/stpmu1.c regulator driver.

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
Jaehoon Chung
9c67c4491e power: pmic_max77686: remove the old pmic_max77686 file
max77686 pmic is supporting with max77686.c under pmic/ and regulator/
direnctroy. Remove pmic_max77686.c what didn't use anywhere.
Instead, enable CONFIG_DM_REGULATOR_MAX77686 and
CONFIG_DM_PMIC_MAX77686.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2018-05-08 13:12:33 +09:00
Tom Rini
4549e789c1 SPDX: Convert all of our multiple license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have multiple licenses (in
these cases, dual license) declared in the SPDX-License-Identifier tag.
In this case we change from listing "LICENSE-A LICENSE-B" or "LICENSE-A
or LICENSE-B" or "(LICENSE-A OR LICENSE-B)" to "LICENSE-A OR LICENSE-B"
as per the Linux Kernel style document.  Note that parenthesis are
allowed so when they were used before we continue to use them.

Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 10:24:31 -04:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Tom Rini
d024236e5a Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27 14:54:48 -04:00
Patrick Delaunay
5d0c74e624 pmic: add stpmu1 support
This driver implements register read/write operations for STPMU1.

The STPMU1 PMIC provides 4 BUCKs, 6 LDOs, 1 VREF
and 2 power switches. It is accessed via an I2C interface.
This device is used with STM32MP1 SoCs.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-19 16:14:21 -04:00
Masahiro Yamada
b08c8c4870 libfdt: move headers to <linux/libfdt.h> and <linux/libfdt_env.h>
Thomas reported U-Boot failed to build host tools if libfdt-devel
package is installed because tools include libfdt headers from
/usr/include/ instead of using internal ones.

This commit moves the header code:
  include/libfdt.h         -> include/linux/libfdt.h
  include/libfdt_env.h     -> include/linux/libfdt_env.h

and replaces include directives:
  #include <libfdt.h>      -> #include <linux/libfdt.h>
  #include <libfdt_env.h>  -> #include <linux/libfdt_env.h>

Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-03-05 10:16:28 -05:00
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