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linux/lib/math/polynomial.c

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lib: add generic polynomial calculation Some temperature and voltage sensors use a polynomial to convert between raw data points and actual temperature or voltage. The polynomial is usually the result of a curve fitting of the diode characteristic. The BT1 PVT hwmon driver already uses such a polynonmial calculation which is rather generic. Move it to lib/ so other drivers can reuse it. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20220401214032.3738095-2-michael@walle.cc Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-04-01 23:40:29 +02:00
lib: math: polynomial: don't use 'proxy' headers Update header inclusions to follow IWYU (Include What You Use) principle. Link: https://lkml.kernel.org/r/20260302092831.2267785-3-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Kuan-Wei Chiu <visitorckw@gmail.com> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-03-02 10:28:08 +01:00
lib: add generic polynomial calculation Some temperature and voltage sensors use a polynomial to convert between raw data points and actual temperature or voltage. The polynomial is usually the result of a curve fitting of the diode characteristic. The BT1 PVT hwmon driver already uses such a polynonmial calculation which is rather generic. Move it to lib/ so other drivers can reuse it. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20220401214032.3738095-2-michael@walle.cc Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-04-01 23:40:29 +02:00
lib: math: polynomial: remove link to non-exist file and fix spelling The Baikal SoC and platform support was dropped from the kernel, remove the reference to non-exist file. While at it, fix spelling. Link: https://lkml.kernel.org/r/20260302092831.2267785-4-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Kuan-Wei Chiu <visitorckw@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-03-02 10:28:09 +01:00
lib: add generic polynomial calculation Some temperature and voltage sensors use a polynomial to convert between raw data points and actual temperature or voltage. The polynomial is usually the result of a curve fitting of the diode characteristic. The BT1 PVT hwmon driver already uses such a polynonmial calculation which is rather generic. Move it to lib/ so other drivers can reuse it. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20220401214032.3738095-2-michael@walle.cc Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-04-01 23:40:29 +02:00
lib: math: polynomial: remove link to non-exist file and fix spelling The Baikal SoC and platform support was dropped from the kernel, remove the reference to non-exist file. While at it, fix spelling. Link: https://lkml.kernel.org/r/20260302092831.2267785-4-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Kuan-Wei Chiu <visitorckw@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-03-02 10:28:09 +01:00
lib: add generic polynomial calculation Some temperature and voltage sensors use a polynomial to convert between raw data points and actual temperature or voltage. The polynomial is usually the result of a curve fitting of the diode characteristic. The BT1 PVT hwmon driver already uses such a polynonmial calculation which is rather generic. Move it to lib/ so other drivers can reuse it. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20220401214032.3738095-2-michael@walle.cc Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-04-01 23:40:29 +02:00
lib: math: polynomial: remove link to non-exist file and fix spelling The Baikal SoC and platform support was dropped from the kernel, remove the reference to non-exist file. While at it, fix spelling. Link: https://lkml.kernel.org/r/20260302092831.2267785-4-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Kuan-Wei Chiu <visitorckw@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-03-02 10:28:09 +01:00
lib: add generic polynomial calculation Some temperature and voltage sensors use a polynomial to convert between raw data points and actual temperature or voltage. The polynomial is usually the result of a curve fitting of the diode characteristic. The BT1 PVT hwmon driver already uses such a polynonmial calculation which is rather generic. Move it to lib/ so other drivers can reuse it. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20220401214032.3738095-2-michael@walle.cc Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-04-01 23:40:29 +02:00
lib: math: polynomial: remove link to non-exist file and fix spelling The Baikal SoC and platform support was dropped from the kernel, remove the reference to non-exist file. While at it, fix spelling. Link: https://lkml.kernel.org/r/20260302092831.2267785-4-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Kuan-Wei Chiu <visitorckw@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-03-02 10:28:09 +01:00
lib: add generic polynomial calculation Some temperature and voltage sensors use a polynomial to convert between raw data points and actual temperature or voltage. The polynomial is usually the result of a curve fitting of the diode characteristic. The BT1 PVT hwmon driver already uses such a polynonmial calculation which is rather generic. Move it to lib/ so other drivers can reuse it. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20220401214032.3738095-2-michael@walle.cc Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-04-01 23:40:29 +02:00
lib: math: polynomial: remove link to non-exist file and fix spelling The Baikal SoC and platform support was dropped from the kernel, remove the reference to non-exist file. While at it, fix spelling. Link: https://lkml.kernel.org/r/20260302092831.2267785-4-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Kuan-Wei Chiu <visitorckw@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-03-02 10:28:09 +01:00
lib: add generic polynomial calculation Some temperature and voltage sensors use a polynomial to convert between raw data points and actual temperature or voltage. The polynomial is usually the result of a curve fitting of the diode characteristic. The BT1 PVT hwmon driver already uses such a polynonmial calculation which is rather generic. Move it to lib/ so other drivers can reuse it. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20220401214032.3738095-2-michael@walle.cc Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-04-01 23:40:29 +02:00