kernel/git/stable/linux-stable.git/drivers/regulator/mp8859.c, branch master

regulator: Use named initializers for arrays of i2c_device_data

2026-06-30T22:40:20+00:00

While being less compact, using named initializers allows to more easily see which members of the structs are assigned which value without having to lookup the declaration of the struct. And it's also more robust against changes to the struct definition. The mentioned robustness is relevant for a planned change to struct i2c_device_id that replaces .driver_data by an anonymous union. While touching all these arrays, unify usage of whitespace and commas. This patch doesn't modify the compiled arrays, only their representation in source form benefits. The former was confirmed with x86 and arm64 builds. Reviewed-by: Laurent Pinchart Signed-off-by: Uwe Kleine-König (The Capable Hub) Link: https://patch.msgid.link/2e83a9747ac2c92db8f91fd0e0eb311c4efe8e73.1782827697.git.u.kleine-koenig@baylibre.com Signed-off-by: Mark Brown

regulator: mp8859: Implement set_current_limit()

2024-02-26T13:46:55+00:00

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 Signed-off-by: Mark Brown Link: https://msgid.link/r/20240225-regulator-mp8859-v1-8-68ee2c839ded@kernel.org Signed-off-by: Mark Brown

regulator: mp8859: Report slew rate

2024-02-26T13:46:54+00:00

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 Signed-off-by: Mark Brown Link: https://msgid.link/r/20240225-regulator-mp8859-v1-7-68ee2c839ded@kernel.org Signed-off-by: Mark Brown

regulator: mp8859: Support status and error readback

2024-02-26T13:46:53+00:00

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 Signed-off-by: Mark Brown Link: https://msgid.link/r/20240225-regulator-mp8859-v1-6-68ee2c839ded@kernel.org Signed-off-by: Mark Brown

regulator: mp8859: Support active discharge control

2024-02-26T13:46:52+00:00

The MP8859 can actively discharge the output when disabled, add support for controlling this feature. Tested-by: Markus Reichl Signed-off-by: Mark Brown Link: https://msgid.link/r/20240225-regulator-mp8859-v1-5-68ee2c839ded@kernel.org Signed-off-by: Mark Brown

regulator: mp8859: Support mode operations

2024-02-26T13:46:51+00:00

The MP8859 provides mode control, implement the relevant regulator API operations. Tested-by: Markus Reichl Signed-off-by: Mark Brown Link: https://msgid.link/r/20240225-regulator-mp8859-v1-4-68ee2c839ded@kernel.org Signed-off-by: Mark Brown

regulator: mp8859: Support enable control

2024-02-26T13:46:50+00:00

The MP8859 provides a software enable control, support it in the regulator driver. Tested-by: Markus Reichl Signed-off-by: Mark Brown Link: https://msgid.link/r/20240225-regulator-mp8859-v1-3-68ee2c839ded@kernel.org Signed-off-by: Mark Brown

regulator: mp8859: Validate and log device identifier information

2024-02-26T13:46:49+00:00

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 Signed-off-by: Mark Brown Link: https://msgid.link/r/20240225-regulator-mp8859-v1-2-68ee2c839ded@kernel.org Signed-off-by: Mark Brown

regulator: mp8859: Specify register accessibility and enable caching

2024-02-26T13:46:48+00:00

Avoid needless accesses to the hardware by caching register values that we know, marking status registers as volatile as appropriate. Tested-by: Markus Reichl Signed-off-by: Mark Brown Link: https://msgid.link/r/20240225-regulator-mp8859-v1-1-68ee2c839ded@kernel.org Signed-off-by: Mark Brown

regulator: Switch i2c drivers back to use .probe()

2023-05-07T23:50:11+00:00

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