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path: root/drivers/regulator/mp8859.c (follow)
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2024-02-26regulator: mp8859: Implement set_current_limit()Mark Brown1-0/+55
The mp8859 implements support for current limiting, provide support for configuring this via the driver. The datasheet recommends that if the device has hit the current limit then any changes should be implemented via a ramp so we do so in the driver. Tested-by: Markus Reichl <m.reichl@fivetechno.de> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://msgid.link/r/20240225-regulator-mp8859-v1-8-68ee2c839ded@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-26regulator: mp8859: Report slew rateMark Brown1-0/+15
The MP8859 implements voltage changes at the rate of 1mV/us, tell the core about this so that it can provide appropriate delays on voltage changes. Tested-by: Markus Reichl <m.reichl@fivetechno.de> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://msgid.link/r/20240225-regulator-mp8859-v1-7-68ee2c839ded@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-26regulator: mp8859: Support status and error readbackMark Brown1-0/+59
The MP8859 can report if it is in regulation and detect over temperature conditions, report this information via the relevant regulator API calls. Tested-by: Markus Reichl <m.reichl@fivetechno.de> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://msgid.link/r/20240225-regulator-mp8859-v1-6-68ee2c839ded@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-26regulator: mp8859: Support active discharge controlMark Brown1-0/+5
The MP8859 can actively discharge the output when disabled, add support for controlling this feature. Tested-by: Markus Reichl <m.reichl@fivetechno.de> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://msgid.link/r/20240225-regulator-mp8859-v1-5-68ee2c839ded@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-26regulator: mp8859: Support mode operationsMark Brown1-0/+39
The MP8859 provides mode control, implement the relevant regulator API operations. Tested-by: Markus Reichl <m.reichl@fivetechno.de> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://msgid.link/r/20240225-regulator-mp8859-v1-4-68ee2c839ded@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-26regulator: mp8859: Support enable controlMark Brown1-0/+7
The MP8859 provides a software enable control, support it in the regulator driver. Tested-by: Markus Reichl <m.reichl@fivetechno.de> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://msgid.link/r/20240225-regulator-mp8859-v1-3-68ee2c839ded@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-26regulator: mp8859: Validate and log device identifier informationMark Brown1-0/+34
Ensure that we are talking to a device which reports the expected ID register information and log the OTP and revision information for diagnostic purposes. Tested-by: Markus Reichl <m.reichl@fivetechno.de> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://msgid.link/r/20240225-regulator-mp8859-v1-2-68ee2c839ded@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-26regulator: mp8859: Specify register accessibility and enable cachingMark Brown1-1/+37
Avoid needless accesses to the hardware by caching register values that we know, marking status registers as volatile as appropriate. Tested-by: Markus Reichl <m.reichl@fivetechno.de> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://msgid.link/r/20240225-regulator-mp8859-v1-1-68ee2c839ded@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
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 5.4 and 5.10Douglas 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 5.4 but did exist in Linux 5.10. Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20230316125351.4.I01f21c98901641a009890590ddc1354c0f294e5e@changeid Signed-off-by: Mark Brown <broonie@kernel.org>
2023-03-13regulator: mp8859: Mark OF related data as maybe unusedKrzysztof Kozlowski1-1/+1
The driver can be compile tested with !CONFIG_OF making certain data unused: drivers/regulator/mp8859.c:132:34: error: ‘mp8859_dt_id’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230310214553.275450-3-krzysztof.kozlowski@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
2020-05-08regulator: use linear_ranges helperMatti Vaittinen1-1/+1
Change the regulator helpers to use common linear_ranges code. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by: Mark Brown <broonie@kernel.org> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Link: https://lore.kernel.org/r/64f01d5e381b8631a271616b7790f9d5640974fb.1588944082.git.matti.vaittinen@fi.rohmeurope.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-02-11regulator: mp8859: add supply entryMarkus Reichl1-0/+1
Add vin_supply to the regulator description to support a nice regulator tree. Signed-off-by: Markus Reichl <m.reichl@fivetechno.de> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20200203110034.1448-1-m.reichl@fivetechno.de Signed-off-by: Mark Brown <broonie@kernel.org>
2020-01-10regulator: mp8859: tidy up white space in probeDan Carpenter1-2/+2
These two lines are indented an extra tab. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20200110055252.rvelu4ysvoxsbmlg@kili.mountain Signed-off-by: Mark Brown <broonie@kernel.org>
2020-01-07regulator: mp8859: add driverMarkus Reichl1-0/+156
The MP8859 from Monolithic Power Systems is a single output DC/DC converter. The voltage can be controlled via I2C. Signed-off-by: Markus Reichl <m.reichl@fivetechno.de> Link: https://lore.kernel.org/r/20200106211633.2882-2-m.reichl@fivetechno.de Signed-off-by: Mark Brown <broonie@kernel.org>
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