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* hwmon: Drop explicit initialization of struct i2c_device_id::driver_data to 0Uwe Kleine-König2024-05-011-1/+1
| | | | | | | | | | | | | These drivers don't use the driver_data member of struct i2c_device_id, so don't explicitly initialize this member. This prepares putting driver_data in an anonymous union which requires either no initialization or named designators. But it's also a nice cleanup on its own. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20240430085654.1028864-2-u.kleine-koenig@pengutronix.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (pmbus) Update documentation to not use .probe_new() any moreUwe Kleine-König2023-08-211-1/+1
| | | | | | | | | | | Since commit 03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") .probe() is the recommended callback to implement an i2c driver (again). Reflect this in the documentation and don't mention .probe_new() which will be dropped soon. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230627064948.593804-1-u.kleine-koenig@pengutronix.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (pmbus) Add support for additional Flex BMR converters to pmbusErik Rosen2021-06-171-4/+7
| | | | | | | | | | Add support for Flex BMR310, BMR456, BMR457, BMR458, BMR480, BMR490, BMR491 and BMR492 to the pmbus driver Signed-off-by: Erik Rosen <erik.rosen@metormote.com> Link: https://lore.kernel.org/r/20210507194023.61138-4-erik.rosen@metormote.com [groeck: Fixed minor whitespace error] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (pmbus) shrink code and remove pmbus_do_remove()Bartosz Golaszewski2020-12-021-6/+0
| | | | | | | | | | | The only action currently performed in pmbus_do_remove() is removing the debugfs hierarchy. We can schedule a devm action at probe time and remove pmbus_do_remove() entirely from all pmbus drivers. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Link: https://lore.kernel.org/r/20201026105352.20359-1-brgl@bgdev.pl [groeck: Removed references to pmbus_do_remove from documentation] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon (pmbus) use simple i2c probe functionStephen Kitt2020-09-231-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | pmbus_do_probe doesn't use the id information provided in its second argument, so this can be removed, which then allows using the single-parameter i2c probe function ("probe_new") for probes. This avoids scanning the identifier tables during probes. Drivers which didn't use the id are converted as-is; drivers which did are modified as follows: * if the information in i2c_client is sufficient, that's used instead (client->name); * configured v. probed comparisons are performed by comparing the configured name to the detected name, instead of the ids; this involves strcmp but is still cheaper than comparing all the device names when scanning the tables; * anything else is handled by calling i2c_match_id() with the same level of error-handling (if any) as before. Additionally, the mismatch message in the ltc2978 driver is adjusted so that it no longer assumes that the driver_data is an index into ltc2978_id. Signed-off-by: Stephen Kitt <steve@sk2.org> Acked-by: Wolfram Sang <wsa@kernel.org> Link: https://lore.kernel.org/r/20200808210004.30880-1-steve@sk2.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (pmbus/core) Add support for rated attributesZbigniew Lukwinski2020-09-231-1/+14
| | | | | | | | | | | | | | Adding implementation for new attributes (rated_min/rated_max) to cover PMBus specification about rated values reporting: MFR_VIN_MIN, MFR_VIN_MAX, MFR_IIN_MAX, MFR_PIN_MAX, MFR_VOUT_MIN, MFR_VOUT_MAX, MFR_IOUT_MAX, MFR_POUT_MAX, MFR_MAX_TEMP_1/2/3. Tested with OpenBMC stack. All rated attributes were available and reported correct values. Signed-off-by: Zbigniew Lukwinski <zbigniew.lukwinski@linux.intel.com> Link: https://lore.kernel.org/r/1596224237-32280-4-git-send-email-zbigniew.lukwinski@linux.intel.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* docs: hwmon: Replace HTTP links with HTTPS onesAlexander A. Klimov2020-07-241-8/+8
| | | | | | | | | | | | | | | | | | | | | Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Link: https://lore.kernel.org/r/20200719170420.60399-1-grandmaster@al2klimov.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (pmbus) Implement multi-phase supportGuenter Roeck2020-03-081-2/+6
| | | | | | | | | | | | | | | | | Some PMBus chips support multiple phases, and report telemetry such as input current, output current, or temperature for each phase. Add support for such chips to the PMBus core. Start with a maximum of 8 phases per page, and assume that supported sensors per phase are similar for all pages. Only support per-phase telemetry attributes, no limits or alarms. As part of this patch, set the initial page variable to 0xff to ensure that the page is updated when the first page command is issued. Also only issue page commands if the chip supports more than one page. Cc: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (pmbus) Add MAX20796 to devices supported by generic pmbus driverGuenter Roeck2020-01-231-0/+10
| | | | | | | MAX20796 is a dual-phase scalable integrated voltage regulator with PMBus interface. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* docs: hwmon: Add an index file and rename docs to *.rstMauro Carvalho Chehab2019-04-171-0/+254
Now that all files were converted to ReST format, rename them and add an index. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>