c5fbd49d3f
These patches support the tps23861 PoE controller found on a number of managed switches. The TPS23861 is an I2C-based quad IEEE 802.3at (PoE+) Power-over-Ethernet PSE controller. It's also found on some Realtek based switches, where we expect the bulk of the users to reside. Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> [Disable driver in generic/config-5.10] Signed-off-by: Sander Vanheule <sander@svanheule.net>
34 lines
1.3 KiB
Diff
34 lines
1.3 KiB
Diff
From b447e689a26614ce08a431e8000e8a650a63dcb3 Mon Sep 17 00:00:00 2001
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From: Robert Marko <robert.marko@sartura.hr>
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Date: Thu, 10 Jun 2021 00:07:28 +0200
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Subject: [PATCH 4/4] hwmon: (tps23861) correct shunt LSB values
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Current shunt LSB values got reversed during in the
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original driver commit.
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So, correct the current shunt LSB values according to
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the datasheet.
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This caused reading slightly skewed current values.
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Fixes: fff7b8ab2255 ("hwmon: add Texas Instruments TPS23861 driver")
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Signed-off-by: Robert Marko <robert.marko@sartura.hr>
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Link: https://lore.kernel.org/r/20210609220728.499879-3-robert.marko@sartura.hr
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Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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---
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drivers/hwmon/tps23861.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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--- a/drivers/hwmon/tps23861.c
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+++ b/drivers/hwmon/tps23861.c
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@@ -105,8 +105,8 @@
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#define TEMPERATURE_LSB 652 /* 0.652 degrees Celsius */
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#define VOLTAGE_LSB 3662 /* 3.662 mV */
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#define SHUNT_RESISTOR_DEFAULT 255000 /* 255 mOhm */
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-#define CURRENT_LSB_255 62260 /* 62.260 uA */
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-#define CURRENT_LSB_250 61039 /* 61.039 uA */
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+#define CURRENT_LSB_250 62260 /* 62.260 uA */
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+#define CURRENT_LSB_255 61039 /* 61.039 uA */
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#define RESISTANCE_LSB 110966 /* 11.0966 Ohm*/
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#define RESISTANCE_LSB_LOW 157216 /* 15.7216 Ohm*/
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