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path: root/drivers/hwmon/sbrmi.c
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2024-05-01hwmon: Drop explicit initialization of struct i2c_device_id::driver_data to 0Uwe Kleine-König1-1/+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>
2024-02-12hwmon: Remove I2C_CLASS_HWMON from drivers w/o detect() and address_listHeiner Kallweit1-1/+0
Class-based I2C probing requires detect() and address_list to be set in the I2C client driver, see checks in i2c_detect(). It's misleading to declare I2C_CLASS_HWMON support if this precondition isn't met. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Link: https://lore.kernel.org/r/75747c6a-d414-4b07-8f66-5a5cdddc3c36@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-06-08hwmon: 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/20230505131718.1210071-1-u.kleine-koenig@pengutronix.de [groeck: Added missing change in pmbus/acbel-fsg032.c] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-04-19hwmon: sbrmi: constify pointers to hwmon_channel_infoKrzysztof Kozlowski1-1/+1
Statically allocated array of pointed to hwmon_channel_info can be made const for safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-12-05hwmon: use simple i2c probeStephen Kitt1-3/+2
All these drivers have an i2c probe function which doesn't use the "struct i2c_device_id *id" parameter, so they can trivially be converted to the "probe_new" style of probe with a single argument. This is part of an ongoing transition to single-argument i2c probe functions. Old-style probe functions involve a call to i2c_match_id: in drivers/i2c/i2c-core-base.c, /* * When there are no more users of probe(), * rename probe_new to probe. */ if (driver->probe_new) status = driver->probe_new(client); else if (driver->probe) status = driver->probe(client, i2c_match_id(driver->id_table, client)); else status = -EINVAL; Drivers which don't need the second parameter can be declared using probe_new instead, avoiding the call to i2c_match_id. Drivers which do can still be converted to probe_new-style, calling i2c_match_id themselves (as is done currently for of_match_id). This change was done using the following Coccinelle script, and fixed up for whitespace changes: @ rule1 @ identifier fn; identifier client, id; @@ - static int fn(struct i2c_client *client, const struct i2c_device_id *id) + static int fn(struct i2c_client *client) { ...when != id } @ rule2 depends on rule1 @ identifier rule1.fn; identifier driver; @@ struct i2c_driver driver = { - .probe + .probe_new = ( fn | - &fn + fn ) , }; Signed-off-by: Stephen Kitt <steve@sk2.org> Link: https://lore.kernel.org/r/20221011143309.3141267-1-steve@sk2.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2021-08-18hwmon: Add support for SB-RMI power moduleAkshay Gupta1-0/+359
On AMD platforms the Out-of-band access is provided by Advanced Platform Management Link (APML), APML is a SMBus v2.0 compatible 2-wire processor client interface. APML is also referred as the sideband interface (SBI). APML is used to communicate with the Side-Band Remote Management Interface (SB-RMI) which provides Soft Mailbox messages to manage power consumption and power limits of the CPU socket. - This module add support to read power consumption, power limit & max power limit and write power limit. - To instantiate this driver on a Board Management Controller (BMC) connected to an AMD CPU with SB-RMI support, the i2c bus number would be the bus connected from the BMC to the CPU. Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Akshay Gupta <Akshay.Gupta@amd.com> Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com> Link: https://lore.kernel.org/r/20210726133615.9709-1-nchatrad@amd.com [groeck: Fix uninitialized variable problem when reporting max power] Signed-off-by: Guenter Roeck <linux@roeck-us.net>