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Add a UCLASS_I2C_EMUL driver that emulates a PMBus 1.x compliant chip
behind the sandbox I2C bus, plus the test.dts wiring and sandbox
defconfig that bind it to the generic PMBus regulator
(compatible = "pmbus"). This design is a stub only: it lets the
follow-up dm unit test drive lib/pmbus.c, the generic regulator and
the pmbus CLI command with no real hardware.
The emulator models a flat per-command 16-bit register file and the
three identification block strings (MFR_ID / MFR_MODEL /
MFR_REVISION). READ_IIN and READ_POUT are deliberately left
unimplemented (the chip NAKs them) so the telemetry printer's
"(not supported)" path is exercised, mirroring a real buck that only
calibrates a subset of the sensor classes.
Signed-off-by: Vincent Jardin <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Per-chip UCLASS_REGULATOR driver for the MPS MPQ8785 / MPM3695 /
MPM3695-25 / MPM82504 family, layered on the shared pmbus_helper
adapter. Runs Linux's mpq8785_identify() VOUT_MODE switch
(LINEAR16 vs DIRECT m=64 R=1) at probe time, applies the optional
mps,vout-fb-divider-ratio-permille DT property, and walks the
documented MPS ADDR_VBOOT windows on MFR_ID failure so a
die-revision address shift just works.
Publishes the pmbus mps last|clear last|clear force vendor
extension subcommands (NVM PROTECTION_LAST read and clear) when
CMD_PMBUS is enabled.
Adapted from Linux code.
Signed-off-by: Vincent Jardin <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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PMBus regulators differ in numeric formats and quirks, not in how they
are driven. Share that common behaviour as a regulator-uclass adapter
so chip drivers and the pmbus CLI do not each reimplement the decode
and transport, and add a catch-all driver on compatible = "pmbus" for
compliant chips that have no dedicated driver yet.
Gated by CONFIG_DM_REGULATOR_PMBUS_HELPER and
CONFIG_DM_REGULATOR_PMBUS_GENERIC.
Signed-off-by: Vincent Jardin <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Add a sandbox LDO3 with a configurable 1.8V to 3.3V range and use it
to test regulator_set_value_clamp().
Test in-range requests, clamping against the regulator limits, invalid
ranges outside the regulator limits and a min value higher than max.
Signed-off-by: Jonas Karlman <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Add regulator_set_value_clamp() that clamps a requested target voltage
to both caller-provided limits and the regulator constraints before
setting the regulator voltage value.
Return -EINVAL when the caller limits cannot be satisfied by the
regulator constraints or when the requested range is invalid.
This helper will initially be used to set vqmmc-supply voltage within an
acceptable range according to SD Standards, i.e. 1.70V-1.95V and
2.7V-3.6V.
Signed-off-by: Jonas Karlman <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Mikhail Kshevetskiy <[email protected]> says:
This patch series add pin controller and gpio driver support for EN7523/
AN7581/AN7583 SoCs. The driver based on official linux airoha pinctrl
and gpio driver with Matheus Sampaio Queiroga changes.
The original Matheus Sampaio Queiroga driver can be taken from the repo:
https://sirherobrine23.com.br/airoha_en7523/kernel/src/branch/airoha_en7523_pinctrl
Additionally in the EN7523 case the patches removes existing gpio dts
nodes and replaces them with pinctrl node. It should not be very
dangerous, because:
* No official EN7523 gpio support present in U-Boot
* Legacy Linux EN7523 GPIO driver is mostly abandoned
* The same driver is planned for upstream linux/openwrt
This patchset includes bitfield.h patches created for Linux kernel by
Geert Uytterhoeven. It suits U-Boot fine. I preserve original author and
original commit messages. Please note me, if there is a better way.
The patches were tested on EN7523/AN7581/AN7583 boards.
Link: https://lore.kernel.org/r/[email protected]
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Drop the driver-specific field_get() and field_prep() macros, in favor
of the globally available variants from <linux/bitfield.h>.
Signed-off-by: Mikhail Kshevetskiy <[email protected]>
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Prepare for the advent of globally available common field_get() and
field_prep() macros by undefining the symbols before defining local
variants. This prevents redefinition warnings from the C preprocessor
when introducing the common macros later.
Signed-off-by: Mikhail Kshevetskiy <[email protected]>
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When one power domain fails to get attribute, continue getting attribute
for remaining power domains, not return probe failure. So other power
domains are still functional.
It is possible that one power domain is assigned to other agent or this
power domain is disabled by HW fuse, so platform returns denied or other
error.
Signed-off-by: Ye Li <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Restyle all Kconfigs for "power":
Menu entries : no space left
Menu attributes: 1 TAB
Help text : 1 TAB + 2 spaces
Replace '---help---' by 'help'
Signed-off-by: Johan Jonker <[email protected]>
[trini: Add missing indentation on a few more multi-paragraph help texts]
Signed-off-by: Tom Rini <[email protected]>
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While restyling Kconfig the script checkpatch.pl gives
this info:
WARNING: 'refered' may be misspelled - perhaps 'referred'?
Fix by changing 'refered' to 'referred'.
Signed-off-by: Johan Jonker <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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Prepare v2026.07-rc5
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Replace ofnode_find_subnode(dev_ofnode(dev), ...) with
dev_read_subnode(dev, ...).
No functional change.
Signed-off-by: Peng Fan <[email protected]>
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Replace ofnode_read_u32(dev_ofnode(dev), ...) with
dev_read_u32(dev, ...), ofnode_read_string(dev_ofnode(dev), ...) with
dev_read_string(dev, ...), and ofnode_for_each_subnode(node,
dev_ofnode(dev)) with dev_for_each_subnode(node, dev).
No functional change.
Reviewed-by: Casey Connolly <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Replace ofnode_read_string(dev_ofnode(dev), ...) with
dev_read_string(dev, ...).
No functional change.
Signed-off-by: Peng Fan <[email protected]>
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Replace ofnode_read_u32_index(dev_ofnode(dev), ...) with
dev_read_u32_index(dev, ...).
No functional change.
Reviewed-by: Casey Connolly <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Replace ofnode_read_bool(dev_ofnode(dev), ...) with
dev_read_bool(dev, ...).
No functional change.
Signed-off-by: Peng Fan <[email protected]>
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Replace ofnode_for_each_subnode(subnode, dev_ofnode(dev)) with
dev_for_each_subnode(subnode, dev) and ofnode_read_u32_default(
dev_ofnode(dev), ...) with dev_read_u32_default(dev, ...).
No functional change.
Signed-off-by: Peng Fan <[email protected]>
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Replace the manual ofnode_read_u32() + ofnode_get_by_phandle() sequence
with a single dev_read_phandle_with_args() call to resolve the
amlogic,hhi-sysctrl phandle. This is cleaner and avoids the intermediate
phandle value and ofnode_valid() check.
No functional change.
Reviewed-by: Neil Armstrong <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Replace the manual ofnode_read_u32() + ofnode_get_by_phandle() sequence
with a single dev_read_phandle_with_args() call to resolve the
amlogic,ao-sysctrl phandle. This is cleaner and avoids the intermediate
phandle value and ofnode_valid() check.
No functional change.
Reviewed-by: Neil Armstrong <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Use dev_read_addr_index() which supports both live device tree and flat DT
backends, avoiding direct dependency on devfdt_* helpers.
No functional changes.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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SD initialization failure happens with some UHS-I SD cards on
iMX8MM/iMX93/iMX91 EVK after
commit 4fcba5d556b4 ("regulator: implement basic reference counter").
When sending operation condition to SD card, the OCR does not return
correct status. The root cause is regulator on/off delay is missed
in MMC power cycle with above commit, so SD card is not completely
power off.
When SD startup, the sequence of MMC power cycle is:
mmc_power_init(get vmmc_supply dev) -> mmc_power_off -> udelay(2000)
-> mmc_power_on
Before above commit, as a fixed regulator, the GPIO is set as:
GPIO inactive (in mmc_power_init) ->
GPIO inactive and delay off-on-delay-us (in mmc_power_off) ->
udelay(2000) ->
GPIO active (in mmc_power_on)
After the commit:
GPIO inactive (in mmc_power_init) ->
enable_count is 0, regulator_set_enable returns -EALREADY immediately,
so GPIO is inactive but No off-on-delay-us (in mmc_power_off) ->
udelay(2000) ->
GPIO active (in mmc_power_on)
Move the off-on-delay-us delay before setting GPIO active to fix the issue.
Signed-off-by: Ye Li <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Initial regulator mode was read from dts but never applied.
This caused a mismatch between saved mode and actual regulator mode.
Apply the current mode from priv->mode during enable() and move
rpmh_regulator_vrm_set_mode function before rpmh_regulator_set_enable_state().
Signed-off-by: Federico Amedeo Izzo <[email protected]>
Reviewed-by: Casey Connolly <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Casey Connolly <[email protected]>
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Prepare v2026.07-rc3
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Add Renesas R-Car R8A78000 X5H MDLC power domain and reset driver,
which serves as a remap driver between DT power domain and reset IDs
and SCMI power domain and reset IDs in case U-Boot runs on Cortex-A,
and as a direct hardware access driver for RSIP.
The R-Car X5H SCP firmware uses different SCMI power domain and
reset IDs in different versions of the SCP firmware, which makes
this remapping necessary. The SCMI base protocol version is updated
for each new SCP firmware version, it is therefore possible to
determine which SCP firmware version is running on the platform
from the base protocol and then determine which remapping table to
use for DT power domain and reset ID to SCMI power domain and reset
ID remapping.
Currently supported versions are SCP 4.28, 4.31, 4.32 .
The DT power domain and reset ID to SCMI power domain and reset ID
remap and call mechanism is simple. Unlike SCMI clock protocol driver,
the SCMI reset and power domain protocol drivers register only a single
device. This driver looks up that single device, obtains its reset or
power domain ops, sets up struct reset_ctl or struct power_domain with
remapped SCMI ID, and invokes operations directly on the device.
In case of RSIP, all power domains are already enabled by BootROM or
early SoC initialization code, the driver therefore only acts as a
stub for the power domain part. The reset part operates as a direct
hardware access reset driver.
Signed-off-by: Marek Vasut <[email protected]>
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https://gitlab.denx.de/u-boot/custodians/u-boot-imx into next
CI: https://source.denx.de/u-boot/custodians/u-boot-imx/-/pipelines/30134
- Several conversions to OF_UPSTREAM.
- Added i.MX9 Quickboot support.
- Added support for i.MX952 in the fsl_enetc driver.
- Update i.MX91 part number detection.
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pmic_reg_read returns a negative value if an error occurs. This
commit adds a missing check after calling pmic_reg_read.
Signed-off-by: Francois Berder <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Michal Simek <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: David Lechner <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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After discussion with the devicetree maintainers we agreed to not extend
lists with the generic compatible "apple,pmgr-pwrstate" anymore [1]. Use
"apple,t8103-pmgr-pwrstate" as base compatible as it is the SoC driver
and bindings were originally written for.
The t602x (M2 Pro/Max/Ultra) devicetrees submitted in [2] use this
compatible as fallback instead of "apple,pmgr-pwrstate".
Link: https://lore.kernel.org/asahi/[email protected]/ [1]
Link: https://lore.kernel.org/asahi/[email protected]/ [2]
Signed-off-by: Janne Grunau <[email protected]>
Acked-by: Mark Kettenis <[email protected]>
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Use CONFIG_$(PHASE_)DM_REGULATOR_PFUZE100 as the build condition for
pfuze100 regulator driver.
Add Kconfig option for SPL_DM_REGULATOR_PFUZE100.
To avoid break current platforms, set the Kconfig default value same
as PMIC_PFUZE100.
Signed-off-by: Peng Fan <[email protected]>
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Some BUCKs could work in single/dual phase mode, not in independent
mode. In single/dual phase mode, registers of both regulators,
must be identically set. So configure mode and value for both BUCKs.
CONF registers are not touched, leave them as default OTP settings.
PFUZE100/200 SW3A/B, could work in single/dual phase mode, so introduce
a new macro by adding a pointer to the SW3B descriptor.
Signed-off-by: Peng Fan <[email protected]>
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Some PFUZE regulators can operate in either low or high output voltage mode,
with different minimum voltages and voltage step sizes selected by a hardware
control bit. However, the current PFUZE100 regulator driver assumes low output
voltage mode only, resulting in incorrect voltage calculation and programming
when high voltage mode is enabled.
Extend the regulator descriptor to describe high output voltage mode by adding
a mask to detect the mode and a dedicated voltage description (min_uV and
step size). Update voltage get/set handling to dynamically select the correct
voltage parameters based on the high voltage mode bit.
Signed-off-by: Peng Fan <[email protected]>
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regulator-min-microvolt in device tree is not always match the minimal
voltage in the pmic datasheet, direclty using the min value from device
tree as base may cause wrong voltage settings being written.
Directly use the min_uV from datasheet to avoid wrong settings.
Signed-off-by: Peng Fan <[email protected]>
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Depending on the phase selection (single or multi), the FPWM bits
configured forces the regulator to operate in PWM mode. In case of
multi-phase selection, the FPWM_MP bits enforce the regulator to also
operate in multi-phase. This fixes correct multi-phase operation.
While at this, correct incorrect macro alignment as well.
Fixes: 065a452ae6a1 ("power: regulator: tps65941: add regulator support")
Link: https://www.ti.com/lit/ds/symlink/tps6594-q1.pdf
Signed-off-by: Keerthy <[email protected]>
Signed-off-by: Takuma Fujiwara <[email protected]>
Signed-off-by: Neha Malcom Francis <[email protected]>
Reviewed-by: Udit Kumar <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
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Add mt8195 support.
Support comes directly from commit e88edc977b00 ("soc: mediatek: pwrap:
add pwrap driver for MT8195 SoC") from the Linux Kernel.
Signed-off-by: Julien Stephan <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: David Lechner <[email protected]>
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Fix mt8188_regs definition to use tabs instead of spaces for alignment
to be consistent with other definitions.
Reviewed-by: Macpaul Lin <[email protected]>
Signed-off-by: Julien Stephan <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: David Lechner <[email protected]>
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