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Author SHA1 Message Date
Axel Lin
0ea461b4f2 regulator: bd71815: Get rid of struct bd71815_pmic 
The content of bd71815_regulators is never changed, no need to duplicate
it, thus remove descs[BD71815_REGULATOR_CNT].
The *regmap, *dev and *rdev[BD71815_REGULATOR_CNT] are not really needed.
The *gps is unused.

Thus the struct bd71815_pmic can be removed.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Link: https://lore.kernel.org/r/20210607143002.1600017-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-08 13:37:46 +01:00
Axel Lin
ba6622c433 regulator: ltc3589: Convert to use regulator_set_ramp_delay_regmap 
Use regulator_set_ramp_delay_regmap instead of open-coded

LTC3589_LINEAR_REG() no longer call LTC3589_REG() now.
Only LTC3589_LINEAR_REG() needs to set go_bit, thus remove go_bit
parameter from LTC3589_REG() macro.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210604115803.1260976-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-08 13:37:45 +01:00
Axel Lin
73d4ae57f8 regulator: mt6359: Get rid of linear_range tables 
The MT6359_BUCK and MT6359_LDO_LINEAR macros setup both
linear settings (min_uV, uV_step, linear_min_sel) and linar_range
(linear_ranges, n_linear_ranges) settings.
All the linear range tables actually only has one entry.
Let's simplify it by using linear instead of linear range.

The linear_min_sel setting is 0 for all cases, remove it
from the macros.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210606065052.1417111-3-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-07 16:24:09 +01:00
Axel Lin
5a5e31150c regulator: mt6359: Use unsigned int for volt_tables 
The regulator_desc expects "const unsigned int *volt_table", thus use
unsigned int instead of u32.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210606065052.1417111-2-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-07 16:24:09 +01:00
Axel Lin
431ea63b64 regulator: mt6358: Use unsigned int for volt_tables 
The regulator_desc expects "const unsigned int *volt_table", thus use
unsigned int instead of u32.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210606065052.1417111-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-07 16:24:08 +01:00
Axel Lin
3c37d899ef regulator: max77686: Convert to use regulator_set_ramp_delay_regmap 
Use regulator_set_ramp_delay_regmap instead of open-coded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210605013424.1298773-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-07 16:24:07 +01:00
Mark Brown
4388daa8e2 Merge tag 'tb-mfd-regulator-rtc-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into regulator-5.14 
Immutable branch between MFD, Regulator and RTC due for the v5.14 merge window
 2021-06-07 16:23:06 +01:00
Rudi Heitbaum
5eee5eced9 regulator: fan53555: add tcs4526 
For rk3399pro boards the tcs4526 regulator supports the vdd_gpu
regulator. The tcs4526 regulator has a chip id of <0>.
Add the compatibile tcs,tcs4526

without this patch, the dmesg output is:
  fan53555-regulator 0-0010: Chip ID 0 not supported!
  fan53555-regulator 0-0010: Failed to setup device!
  fan53555-regulator: probe of 0-0010 failed with error -22
with this patch, the dmesg output is:
  vdd_gpu: supplied by vcc5v0_sys

The regulators are described as:
- Dedicated power management IC TCS4525
- Lithium battery protection chip TCS4526

This has been tested with a Radxa Rock Pi N10.

Signed-off-by: Rudi Heitbaum <rudi@heitbaum.com>
Link: https://lore.kernel.org/r/20210602112943.GA119@5f9be87369f8
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-04 15:27:10 +01:00
ChiYuan Huang
a747070e9b regulator: rt6245: Add support for Richtek RT6245 
Richtek RT6245 is a high-performance, synchronous step-down converter
that can deliver up to 14A output current with an input supply voltage
range of 4.5V to 17V.

Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/1622699844-19203-2-git-send-email-u0084500@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-03 19:34:51 +01:00
ChiYuan Huang
1623d767c7 regulator: rt6245: Add the binding document for Richtek RT6245 
Add the binding document for Richtek RT6245.

Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1622699844-19203-1-git-send-email-u0084500@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-03 14:05:54 +01:00
Axel Lin
6041d5fe51 regulator: bd9576: Constify the voltage tables 
Also use unsigned int instead of int for the voltage tables.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210525100405.2506483-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-03 14:04:54 +01:00
Axel Lin
b61ac767db regulator: fan53555: Convert to use regulator_set_ramp_delay_regmap 
Use regulator_set_ramp_delay_regmap instead of open-coded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210525124017.2550029-2-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-03 14:04:53 +01:00
Axel Lin
30b38b805b regulator: fan53555: Fix missing slew_reg/mask/shift settings for FAN53526 
The di->slew_reg/di->slew_mask/di->slew_shift was not set in current code,
fix it.

Fixes: f2a9eb975a ("regulator: fan53555: Add support for FAN53526")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210525124017.2550029-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-03 14:04:52 +01:00
Axel Lin
8cdded982a regulator: max77802: Convert to use regulator_set_ramp_delay_regmap 
Use regulator_set_ramp_delay_regmap instead of open-coded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210523072320.2174443-2-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-03 14:04:51 +01:00
Axel Lin
8f4ef0788c regulator: max77802: Remove .set_ramp_delay from max77802_buck_dvs_ops 
max77802_set_ramp_delay_2bit() returns -EINVAL when id > MAX77802_BUCK4.
This was a leftover in commit b0615f1da5
("regulator: max77802: Split regulator operations for BUCKs").

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210523072320.2174443-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-03 14:04:50 +01:00
Zhen Lei
ba499a50ce regulator: userspace-consumer: use DEVICE_ATTR_RO/RW macro 
Use DEVICE_ATTR_RO/RW macro helper instead of plain DEVICE_ATTR, which
makes the code a bit shorter and easier to read.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210602080526.11117-1-thunder.leizhen@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-02 12:03:37 +01:00
ChiYuan Huang
de20b747c5 regulator: rt6160: Add support for Richtek RT6160 
Add support for Richtek RT6160 voltage regulator. It can provide up
to 3A output current within the adjustable voltage from 2025mV
to 5200mV. It integrate a buckboost converter to support wide input
voltage range from 2200mV to 5500mV.

Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/1622611906-2403-2-git-send-email-u0084500@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-02 12:03:36 +01:00
ChiYuan Huang
bce18e52c8 regulator: rt6160: Add DT binding document for Richtek RT6160 
Add DT binding document for Richtek RT6160 voltage regulator.

Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1622611906-2403-1-git-send-email-u0084500@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-02 12:03:35 +01:00
YueHaibing
a277a2622c regulator: core: Use DEVICE_ATTR_RO macro 
Use DEVICE_ATTR_RO() helper instead of plain DEVICE_ATTR(),
which makes the code a bit shorter and easier to read.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210529115226.25376-1-yuehaibing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-02 12:03:34 +01:00
Hsin-Hsiung Wang
4cfc965475 regulator: mt6359: Add support for MT6359P regulator 
The MT6359P is a eco version for MT6359 regulator.
We add support based on MT6359 regulator driver.

Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-01 16:44:36 +01:00
Wen Su
d7a58decc7 regulator: mt6359: Add support for MT6359 regulator 
The MT6359 is a regulator found on boards based on MediaTek MT6779 and
probably other SoCs. It is a so called pmic and connects as a slave to
SoC using SPI, wrapped inside the pmic-wrapper.

Signed-off-by: Wen Su <wen.su@mediatek.com>
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-01 16:44:31 +01:00
Hsin-Hsiung Wang
e545b8f380 mfd: Add support for the MediaTek MT6359 PMIC 
This adds support for the MediaTek MT6359 PMIC. This is a
multifunction device with the following sub modules:

- Codec
- Interrupt
- Regulator
- RTC

It is interfaced to the host controller using SPI interface
by a proprietary hardware called PMIC wrapper or pwrap.
MT6359 MFD is a child device of the pwrap.

Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-01 16:44:23 +01:00
Hsin-Hsiung Wang
8771456635 dt-bindings: regulator: Add document for MT6359 regulator 
add dt-binding document for MediaTek MT6359 PMIC

Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-01 16:44:20 +01:00
Hsin-Hsiung Wang
65c1d05325 dt-bindings: mfd: Add compatible for the MediaTek MT6359 PMIC 
This adds compatible for the MediaTek MT6359 PMIC.

Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-01 16:44:15 +01:00
Hsin-Hsiung Wang
be60652f02 rtc: mt6397: refine RTC_TC_MTH 
This patch adds RTC_TC_MTH_MASK to support new chips.

Signed-off-by: Yuchen Huang <yuchen.huang@mediatek.com>
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-01 16:44:09 +01:00
Hsin-Hsiung Wang
d8570c182f mfd: mt6358: Refine interrupt code 
This patch refines the interrupt related code to support new chips.

Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-01 16:44:00 +01:00
Axel Lin
96ec5afeb3 regulator: mcp16502: Convert to use regulator_set_ramp_delay_regmap 
Use regulator_set_ramp_delay_regmap instead of open-coded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210526125026.82549-2-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-01 14:05:26 +01:00
Axel Lin
1d15b3e6f9 regulator: mcp16502: Convert to use .probe_new 
Use the new .probe_new for mcp16502.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210526125026.82549-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-01 14:05:25 +01:00
Matti Vaittinen
71de5d6e63 regulator: bd70528: Drop BD70528 support 
The only known BD70528 use-cases are such that the PMIC is controlled
from separate MCU which is not running Linux. I am not aware of
any Linux driver users. Furthermore, it seems there is no demand for
this IC. Let's ease the maintenance burden and drop the driver. We can
always add it back if there is sudden need for it.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Link: https://lore.kernel.org/r/d7271362129edceebc512b49efed9ee7c3efcb6a.1622116622.git.matti.vaittinen@fi.rohmeurope.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-01 14:05:24 +01:00
Axel Lin
fbd168cd76 regulator: lp8755: Convert to use regulator_set_ramp_delay_regmap 
Use regulator_set_ramp_delay_regmap instead of open-coded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210527144248.247992-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-01 14:05:23 +01:00
Axel Lin
7f8c839442 regulator: mt6315: Don't ignore devm_regulator_register failure 
Also use dev_err instead of dev_notice for messages in error conditions.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210530020543.418634-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-01 14:05:22 +01:00
Axel Lin
4c4fce171c regulator: pca9450: Convert to use regulator_set_ramp_delay_regmap 
Use regulator_set_ramp_delay_regmap instead of open-coded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210526122408.78156-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-06-01 14:05:21 +01:00
Zou Wei
d149b855b9 regulator: bd71815: fix platform_no_drv_owner.cocci warnings 
./drivers/regulator/bd71815-regulator.c:644:3-8: No need to set .owner here. The core will do it.

 Remove .owner field if calls are used which set it automatically

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Acked-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Message-Id: <1622109244-54739-1-git-send-email-zou_wei@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-05-27 11:15:36 +01:00
Axel Lin
f85ea4945a regulator: rk808: Convert to use regulator_set_ramp_delay_regmap 
Use regulator_set_ramp_delay_regmap instead of open-coded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Message-Id: <20210525141203.2562884-1-axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-05-26 19:22:09 +01:00
Axel Lin
5c42903e14 regulator: rt4831: Add missing .owner field in regulator_desc 
Add missing .owner field in regulator_desc, which is used for refcounting.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Message-Id: <20210524123735.2363676-1-axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@sirena.org.uk>
 2021-05-25 16:45:11 +01:00
Axel Lin
15413ce566 regulator: mp5416: Convert to use regulator_set_ramp_delay_regmap 
Use regulator_set_ramp_delay_regmap instead of open-coded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Message-Id: <20210522023018.2025188-1-axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@sirena.org.uk>
 2021-05-25 16:45:10 +01:00
Axel Lin
e1e8d55bb9 regulator: mp886x: Convert to use regulator_set_ramp_delay_regmap 
Use regulator_set_ramp_delay_regmap instead of open-coded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Message-Id: <20210525102708.2519323-1-axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@sirena.org.uk>
 2021-05-25 16:45:09 +01:00
Axel Lin
e0f339213c regulator: qcom_smd: Make pm8953_lnldo linear_ranges entries properly sorted 
For better readability, make linear_ranges entries sort by selector.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Message-Id: <20210520112719.1814396-1-axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@sirena.org.uk>
 2021-05-25 16:45:08 +01:00
Axel Lin
7c556aec14 regulator: bd70528: Convert to use regulator_set_ramp_delay_regmap 
Use regulator_set_ramp_delay_regmap instead of open-coded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Link: https://lore.kernel.org/r/20210522124250.2121076-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-05-24 09:51:35 +01:00
Axel Lin
8590ccd4df regulator: max8973: Convert to use regulator_set_ramp_delay_regmap 
Use regulator_set_ramp_delay_regmap instead of open-coded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210522040814.2042397-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-05-24 09:51:34 +01:00
Randy Dunlap
5ba3747dbc regulator: bd71815: add select to fix build 
Mend the Kconfig for REGULATOR_BD71815 to prevent build errors:

riscv32-linux-ld: drivers/regulator/bd71815-regulator.o: in function `.L0 ':
regulator.c:289: undefined reference to `rohm_regulator_set_dvs_levels'
riscv32-linux-ld: drivers/regulator/bd71815-regulator.c:370: undefined reference to `rohm_regulator_set_dvs_levels'

Fixes: 1aad39001e ("regulator: Support ROHM BD71815 regulators")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Reviewed-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Link: https://lore.kernel.org/r/20210523001427.13500-1-rdunlap@infradead.org
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-05-24 09:51:34 +01:00
Axel Lin
79c7e1447c regulator: fan53555: Cleanup unused define and redundant assignment 
TCS_VSEL_NSEL_MASK is not used so remove it.
Also remove redundant assignment for di->slew_reg.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210517010318.1027949-2-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-05-19 14:19:12 +01:00
Axel Lin
a7f003147b regulator: fan53555: Fix slew_shift setting for tcs4525 
Fix trivial copy-paste mistake.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210517010318.1027949-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-05-19 14:19:11 +01:00
Axel Lin
7075359c8e regulator: fan53880: Convert to use .probe_new 
Use the new .probe_new for fan53880.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Christoph Fritz <chf.fritz@googlemail.com>
Link: https://lore.kernel.org/r/20210517105325.1227393-2-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-05-18 14:04:34 +01:00
Axel Lin
3799fa23af regulator: bd71815: Fix missing include files 
Include linux/of.h and linux/gpio/consumer.h to fix below errors:
error: implicit declaration of function ‘of_match_ptr’
error: implicit declaration of function ‘devm_gpiod_get_from_of_node’

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Link: https://lore.kernel.org/r/20210518114843.1495152-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-05-18 14:04:33 +01:00
Mark Brown
9b8756d6ee Merge branch 'for-5.13' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-5.14 2021-05-12 17:55:27 +01:00
Peter Geis
b3cc8ec04f regulator: fan53555: fix tcs4525 function names 
The tcs4525 is based off the fan53526.
Rename the tcs4525 functions to align with this.

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20210511211335.2935163-4-pgwipeout@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-05-12 16:26:40 +01:00
Peter Geis
f9028dcdf5 regulator: fan53555: only bind tcs4525 to correct chip id 
The tcs4525 regulator has a chip id of <12>.
Only allow the driver to bind to the correct chip id for safety, in
accordance with the other supported devices.

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20210511211335.2935163-3-pgwipeout@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-05-12 16:26:39 +01:00
Peter Geis
d4db69eba2 regulator: fan53555: fix TCS4525 voltage calulation 
The TCS4525 has 128 voltage steps. With the calculation set to 127 the
most significant bit is disregarded which leads to a miscalculation of
the voltage by about 200mv.

Fix the calculation to end deadlock on the rk3566-quartz64 which uses
this as the cpu regulator.

Fixes: 914df8faa7 ("regulator: fan53555: Add TCS4525 DCDC support")
Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20210511211335.2935163-2-pgwipeout@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2021-05-12 16:26:39 +01:00
Mark Brown
adf1471b2f Merge series "regulator: fan53555: tcs4525 fix and cleanup" from Peter Geis <pgwipeout@gmail.com>: 
The tcs4525 voltage calculation is incorrect, which leads to a deadlock
on the rk3566-quartz64 board when loading cpufreq.
Fix the voltage calculation to correct the deadlock.
While we are at it, add a safety check and clean up the function names
to be more accurate.

Peter Geis (3):
  regulator: fan53555: fix TCS4525 voltage calulation
  regulator: fan53555: only bind tcs4525 to correct chip id
  regulator: fan53555: fix tcs4525 function names

 drivers/regulator/fan53555.c | 44 ++++++++++++++++++++++--------------
 1 file changed, 27 insertions(+), 17 deletions(-)

--
2.25.1
 2021-05-12 16:22:53 +01:00