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path: root/drivers/hwmon/gsc-hwmon.c
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2025-02-02hwmon: (gsc) drop unneeded assignment for cache_typeAndy Shevchenko
REGCACHE_NONE is the default type of the cache when not provided. Drop unneeded explicit assignment to it. Note, it's defined to 0, and if ever be redefined, it will break literally a lot of the drivers, so it very unlikely to happen. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20250129152036.1797725-1-andriy.shevchenko@linux.intel.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-11-10hwmon: (gsc) Simplify specifying static visibility attributeHeiner Kallweit
Use new member visible of struct hwmon_ops to simplify specifying the static attribute visibility. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Message-ID: <bd909a2c-23ee-437d-9bd4-858119f6f266@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-08-27hwmon: (gsc-hwmon) fix module autoloadingLiao Chen
Add MODULE_DEVICE_TABLE(), so modules could be properly autoloaded based on the alias from of_device_id table. Signed-off-by: Liao Chen <liaochen4@huawei.com> Message-ID: <20240814024555.3875387-1-liaochen4@huawei.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-07-05hwmon: (gsc-hwmon) constify read-only struct regmap_busJavier Carrasco
`gsc_hwmon_regmap_bus` is not modified and can be declared as const to move its data to a read-only section. Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/20240705-hwmon-const-regmap-v1-1-7cde543ba818@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-06-08hwmon: (gsc-hwmon) use device_for_each_child_node_scoped()Javier Carrasco
Switch to the _scoped() version introduced in commit 365130fd47af ("device property: Introduce device_for_each_child_node_scoped()") to remove the need for manual calling of fwnode_handle_put() in the paths where the code exits the loop early. Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/20240404-hwmon_device_for_each_child_node_scoped-v1-2-53997abde43c@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-06-08hwmon: (gsc-hwmon) fix fan pwm temperature scalingTim Harvey
The GSC fan pwm temperature register is in centidegrees celcius but the Linux hwmon convention is to use milidegrees celcius. Fix the scaling. Fixes: 3bce5377ef66 ("hwmon: Add Gateworks System Controller support") Signed-off-by: Tim Harvey <tharvey@gateworks.com> Link: https://lore.kernel.org/r/20230606153004.1448086-1-tharvey@gateworks.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-12-04hwmon: (gsc-hwmon) Switch to flexible array to simplify codeChristophe JAILLET
Using flexible array is more straight forward. It - saves 1 pointer in the 'gsc_hwmon_platform_data' structure - saves an indirection when using this array - saves some LoC and avoids some always spurious pointer arithmetic Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/61a23e1d642397cfcecc4ac3bb0ab485d257987d.1668936855.git.christophe.jaillet@wanadoo.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-09-19hwmon: (gsc-hwmon) Call of_node_get() before of_find_xxx APILiang He
In gsc_hwmon_get_devtree_pdata(), we should call of_node_get() before the of_find_compatible_node() which will automatically call of_node_put() for the 'from' argument. Fixes: 3bce5377ef66 ("hwmon: Add Gateworks System Controller support") Signed-off-by: Liang He <windhl@126.com> Co-developed-by: Mengda Chen <chenmengda2009@163.com> Signed-off-by: Mengda Chen <chenmengda2009@163.com> Link: https://lore.kernel.org/r/20220916154708.3084515-1-chenmengda2009@163.com Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-07-13hwmon: (gsc-hwmon) Add missing of_node_put()Liang He
In gsc_hwmon_get_devtree_pdata(), of_find_compatible_node() will return a node pointer with refcount incremented. We should use of_node_put() in fail path or when it is not used anymore. Signed-off-by: Liang He <windhl@126.com> Link: https://lore.kernel.org/r/20220616114024.3985770-1-windhl@126.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-09-23hwmon: (gsc-hwmon) add fan sensorTim Harvey
Add a fan sensor to report RPM's from a fan tach input. Signed-off-by: Tim Harvey <tharvey@gateworks.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-08-27hwmon: (gsc-hwmon) Scale temperature to millidegreesTim Harvey
The GSC registers report temperature in decidegrees celcius so we need to scale it to represent the hwmon sysfs API of millidegrees. Cc: stable@vger.kernel.org Fixes: 3bce5377ef66 ("hwmon: Add Gateworks System Controller support") Signed-off-by: Tim Harvey <tharvey@gateworks.com> Link: https://lore.kernel.org/r/1598548824-16898-1-git-send-email-tharvey@gateworks.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-07-19hwmon: (gsc) add 16bit pre-scaled voltage modeTim Harvey
add a 16-bit pre-scaled voltage mode to adc and clarify that existing pre-scaled mode is 24bit. Signed-off-by: Tim Harvey <tharvey@gateworks.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/1591714640-10332-3-git-send-email-tharvey@gateworks.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-20hwmon: Add Gateworks System Controller supportTim Harvey
The Gateworks System Controller has a hwmon sub-component that exposes up to 16 ADC's, some of which are temperature sensors, others which are voltage inputs. The ADC configuration (register mapping and name) is configured via device-tree and varies board to board. Signed-off-by: Tim Harvey <tharvey@gateworks.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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