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path: root/drivers/regulator/da9121-regulator.c
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2023-05-08regulator: Switch i2c drivers back to use .probe()Uwe Kleine-König1-1/+1
After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de Link: https://lore.kernel.org/r/20230505220218.1239542-1-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org
2023-03-20regulator: Set PROBE_PREFER_ASYNCHRONOUS for drivers between 5.10 and 5.15Douglas Anderson1-0/+1
This follows on the change ("regulator: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in 4.14") but changes regulators didn't exist in Linux 5.10 but did exist in Linux 5.15. Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20230316125351.5.Ia0e6d859bdfe42ea5c187fb1eb4705c1b5ea23a1@changeid Signed-off-by: Mark Brown <broonie@kernel.org>
2022-11-22regulator: da9121-regulator: Convert to i2c's .probe_new()Uwe Kleine-König1-3/+2
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-for-MFD-by: Lee Jones <lee@kernel.org> Acked-for-Backlight-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221118224540.619276-541-uwe@kleine-koenig.org Signed-off-by: Mark Brown <broonie@kernel.org>
2022-08-16i2c: Make remove callback return voidUwe Kleine-König1-2/+1
The value returned by an i2c driver's remove function is mostly ignored. (Only an error message is printed if the value is non-zero that the error is ignored.) So change the prototype of the remove function to return no value. This way driver authors are not tempted to assume that passing an error to the upper layer is a good idea. All drivers are adapted accordingly. There is no intended change of behaviour, all callbacks were prepared to return 0 before. Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com> Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au> Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Crt Mori <cmo@melexis.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013 Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/* Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5 Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860 Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power Acked-by: Krzysztof Hałasa <khalasa@piap.pl> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-04-21regulator: da9121: Fix uninit-value in da9121_assign_chip_model()Wei Yongjun1-0/+2
KASAN report slab-out-of-bounds in __regmap_init as follows: BUG: KASAN: slab-out-of-bounds in __regmap_init drivers/base/regmap/regmap.c:841 Read of size 1 at addr ffff88803678cdf1 by task xrun/9137 CPU: 0 PID: 9137 Comm: xrun Tainted: G W 5.18.0-rc2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0xe8/0x15a lib/dump_stack.c:88 print_report.cold+0xcd/0x69b mm/kasan/report.c:313 kasan_report+0x8e/0xc0 mm/kasan/report.c:491 __regmap_init+0x4540/0x4ba0 drivers/base/regmap/regmap.c:841 __devm_regmap_init+0x7a/0x100 drivers/base/regmap/regmap.c:1266 __devm_regmap_init_i2c+0x65/0x80 drivers/base/regmap/regmap-i2c.c:394 da9121_i2c_probe+0x386/0x6d1 drivers/regulator/da9121-regulator.c:1039 i2c_device_probe+0x959/0xac0 drivers/i2c/i2c-core-base.c:563 This happend when da9121 device is probe by da9121_i2c_id, but with invalid dts. Thus, chip->subvariant_id is set to -EINVAL, and later da9121_assign_chip_model() will access 'regmap' without init it. Fix it by return -EINVAL from da9121_assign_chip_model() if 'chip->subvariant_id' is invalid. Fixes: f3fbd5566f6a ("regulator: da9121: Add device variants") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Adam Ward <Adam.Ward.Opensource@diasemi.com> Link: https://lore.kernel.org/r/20220421090335.1876149-1-weiyongjun1@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-22regulator: da9121: Remove surplus DA9141 parametersAdam Ward1-4/+0
Remove ramp_delay/enable_time values - subject to OTP, incorrect Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/a175201b4a7ea323c6a70d77f7f6d2124bfc0bed.1645489455.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-22regulator: da9121: Fix DA914x voltage valueAdam Ward1-1/+1
Update DA9141/2 max voltage to match spec change Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/9d1ec5b6db70d27f56d05b8a0139fc0840f03e20.1645489455.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-22regulator: da9121: Fix DA914x current valuesAdam Ward1-5/+5
Update DA9141/2 ranges to correct errors Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/cd5732c5061ce49dcfbcebb306d12ba1664b4ea6.1645489455.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-11-30regulator: da9121: Add DA914x supportAdam Ward1-3/+105
Add the DA9141 and DA9142 regulators device recognition data and operational parameters. Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/5f5b9b02f07578cd36c6bc266349a56efc9b08d1.1638223185.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-11-30regulator: da9121: Prevent current limit change when enabledAdam Ward1-0/+5
Prevent changing current limit when enabled as a precaution against possibile instability due to tight integration with switching cycle Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/52ee682476004a1736c1e0293358987319c1c415.1638223185.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-11-16regulator: da9121: Emit only one error message in .remove()Uwe Kleine-König1-2/+2
When an i2c remove callback fails, the i2c core emits a generic error message and still removes the device. Apart from the message there the return value isn't further used. So don't return an error code after having already emitted a driver specific warning about the problem to prevent two messages about the same issue. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20211116110951.1213566-1-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
2021-05-18regulator: da9121: Return REGULATOR_MODE_INVALID for invalid modeAxel Lin1-3/+7
-EINVAL is not a valid return value for .of_map_mode, return REGULATOR_MODE_INVALID instead. Fixes: 65ac97042d4e ("regulator: da9121: add mode support") Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/20210517052721.1063375-1-axel.lin@ingics.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-04-21regulator: da9121: automotive variants identity fixAdam Ward1-28/+52
This patch fixes identification of DA913x parts by the DA9121 driver, where a lack of clarity lead to implementation on the basis that variant IDs were to be identical to the equivalent rated non-automotive parts. There is a new emphasis on the DT identity to cope with overlap in these ID's - this is not considered to be problematic, because projects would be exclusively using automotive or consumer grade parts. Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/20210421120306.DB5B880007F@slsrvapps-01.diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-08Merge series "regulator: da9121: bug fixes" from Adam Ward ↵Mark Brown1-3/+2
<Adam.Ward.opensource@diasemi.com>: This patch fixes a couple of bugs in the DA9121 driver. One in an uninialised string I forgot to remove when changing to of_parse_cb() The other is an index for an optional DT property which overflows Adam Ward (2): regulator: da9121: Remove uninitialised string variable regulator: da9121: Fix index used for DT property drivers/regulator/da9121-regulator.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) -- 1.9.1
2020-12-08regulator: da9121: Potential Oops in da9121_assign_chip_model()Dan Carpenter1-0/+1
There is a missing "return ret;" on this error path so we call "da9121_check_device_type(i2c, chip);" which will end up dereferencing "chip->regmap" and lead to an Oops. Fixes: c860476b9e3a ("regulator: da9121: Add device variant regmaps") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/X85soGKnWAjPUA7a@mwanda Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-07regulator: da9121: Fix index used for DT propertyAdam Ward1-1/+1
Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/2cf324b68d37c4059c7995e8cab5fc9a608ea65d.1607361013.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-07regulator: da9121: Remove uninitialised string variableAdam Ward1-2/+1
Erroneously left in when switched to using of_parse_cb() Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/c7a9e947a9582fe0150d860b5eab7e093cd832bb.1607361013.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-04regulator: da9121: include linux/gpio/consumer.hArnd Bergmann1-0/+1
When CONFIG_GPIOLIB is disabled, the declarations from linux/gpio/consumer.h are not visible: drivers/regulator/da9121-regulator.c:371:14: error: implicit declaration of function 'fwnode_gpiod_get_index' [-Werror,-Wimplicit-function-declaration] ena_gpiod = fwnode_gpiod_get_index(of_fwnode_handle(np), "enable", 0, ^ drivers/regulator/da9121-regulator.c:372:7: error: use of undeclared identifier 'GPIOD_OUT_HIGH' GPIOD_OUT_HIGH | ^ drivers/regulator/da9121-regulator.c:373:7: error: use of undeclared identifier 'GPIOD_FLAGS_BIT_NONEXCLUSIVE' GPIOD_FLAGS_BIT_NONEXCLUSIVE, Include this explicitly to help compile testing. Fixes: 46c413d5bb23 ("regulator: da9121: Add support for device variants via devicetree") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20201204165229.3754763-1-arnd@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-03regulator: da9121: Mark some symbols with static keywordZou Wei1-5/+5
Fix the following sparse warnings: drivers/regulator/da9121-regulator.c:55:21: warning: symbol 'da9121_10A_2phase_current' was not declared. Should it be static? drivers/regulator/da9121-regulator.c:63:21: warning: symbol 'da9121_6A_2phase_current' was not declared. Should it be static? drivers/regulator/da9121-regulator.c:71:21: warning: symbol 'da9121_5A_1phase_current' was not declared. Should it be static? drivers/regulator/da9121-regulator.c:79:21: warning: symbol 'da9121_3A_1phase_current' was not declared. Should it be static? drivers/regulator/da9121-regulator.c:151:32: warning: symbol 'status_event_handling' was not declared. Should it be static? Signed-off-by: Zou Wei <zou_wei@huawei.com> Acked-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/1606994795-36182-1-git-send-email-zou_wei@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-02regulator: da9121: Request IRQ directly and free in release function to ↵Adam Ward1-3/+6
avoid masking race Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/24b2d8b0c3536408369add034221b1141e58bbfc.1606908582.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-01regulator: da9121: add interrupt supportAdam Ward1-0/+286
Adds interrupt handler for variants, and notifications for events; over temperature/voltage/current. Because the IRQs are triggered by persisting status, they must be masked and the status polled until clear, before the IRQ can be enabled again. Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/fe21796bbcbadff84a472a4cc581ae8fafc7f8f5.1606755367.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-01regulator: da9121: add mode supportAdam Ward1-0/+74
Adds get/set for mode, and mapping from REGULATOR_MODE_* to select PFM/PWM/Auto operation. Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/7844c8f6facb6f7c0649381629cc75ccad14723d.1606755367.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-01regulator: da9121: add current supportAdam Ward1-0/+113
This commit adds support for getting/setting current for all supported variants. Limits are adjusted per variant to match HW implementation. Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/9aa80b909893dbe609730919ed595c6a8ac26606.1606755367.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-01regulator: da9121: Update registration to support multiple buck variantsAdam Ward1-13/+31
Add function which iterates the regulator descriptors for the confirmed variant ID and registers each buck. Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/1fd53c3ab032ef3c8a92f80a2247381db1c09ced.1606755367.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-01regulator: da9121: Add support for device variants via devicetreeAdam Ward1-0/+119
Add devicetree configuration and device variant parameters. Use the latter to enable the check and use of parameters specific to dual buck variants. Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/5849ce60595aef1018bdde7dcfb54a7397597545.1606755367.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-01regulator: da9121: Add device variant descriptorsAdam Ward1-0/+110
Descriptors for bucks in all variants, ready for of_regulator_match Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/8f7a11d59e5ac3ba1bfd448bcfc905efc99b7874.1606755367.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-01regulator: da9121: Add device variant regmapsAdam Ward1-18/+226
Add ability to probe device and validate configuration, then apply a regmap configuration for a single or dual buck device accordingly. Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/068c6b8d5e1b4e221e899e4c914c429429a2ec7d.1606755367.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-01regulator: da9121: Add device variantsAdam Ward1-3/+43
Add basic support for configuration to reference variants of this device, and track the selected variant within the driver. Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/aaabd3063593e5172fa6b605884d475df64e6d65.1606755367.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-01regulator: da9121: Add header fileAdam Ward1-10/+5
Add header file for Dialog Semiconductor DA9121 regulator and related devices, mostly autogenerated from the chip design databases, and update driver to replace local defines with those from header. Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com> Link: https://lore.kernel.org/r/3527d84448d1e6ddc0fcb883ae564880f75a6cb0.1606755367.git.Adam.Ward.opensource@diasemi.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-03regulator: Add support for DA9121 regulatorVincent Whitchurch1-0/+108
Add support for the Dialog Semiconductor DA9121, a single-channel dual-phase buck converter controlled via I2C. Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Link: https://lore.kernel.org/r/20201103100021.19603-3-vincent.whitchurch@axis.com Signed-off-by: Mark Brown <broonie@kernel.org>
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