diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/872-v5.13-02-hwmon-tps23861-set-current-shunt-value.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/872-v5.13-02-hwmon-tps23861-set-current-shunt-value.patch | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/target/linux/generic/backport-5.10/872-v5.13-02-hwmon-tps23861-set-current-shunt-value.patch b/target/linux/generic/backport-5.10/872-v5.13-02-hwmon-tps23861-set-current-shunt-value.patch deleted file mode 100644 index f1051f77d5..0000000000 --- a/target/linux/generic/backport-5.10/872-v5.13-02-hwmon-tps23861-set-current-shunt-value.patch +++ /dev/null @@ -1,57 +0,0 @@ -From 9bca598d4a86e88afb29fdb516c68b2519bd0fb9 Mon Sep 17 00:00:00 2001 -From: Robert Marko <robert.marko@sartura.hr> -Date: Thu, 10 Jun 2021 00:07:27 +0200 -Subject: [PATCH 3/4] hwmon: (tps23861) set current shunt value - -TPS23861 has a configuration bit for setting of the -current shunt value used on the board. -Its bit 0 of the General Mask 1 register. - -According to the datasheet bit values are: -0 for 255 mOhm (Default) -1 for 250 mOhm - -So, configure the bit before registering the hwmon -device according to the value passed in the DTS or -default one if none is passed. - -This caused potentially reading slightly skewed values -due to max current value being 1.02A when 250mOhm shunt -is used instead of 1.0A when 255mOhm is used. - -Fixes: fff7b8ab2255 ("hwmon: add Texas Instruments TPS23861 driver") -Signed-off-by: Robert Marko <robert.marko@sartura.hr> -Link: https://lore.kernel.org/r/20210609220728.499879-2-robert.marko@sartura.hr -Signed-off-by: Guenter Roeck <linux@roeck-us.net> ---- - drivers/hwmon/tps23861.c | 12 ++++++++++++ - 1 file changed, 12 insertions(+) - ---- a/drivers/hwmon/tps23861.c -+++ b/drivers/hwmon/tps23861.c -@@ -99,6 +99,9 @@ - #define POWER_ENABLE 0x19 - #define TPS23861_NUM_PORTS 4 - -+#define TPS23861_GENERAL_MASK_1 0x17 -+#define TPS23861_CURRENT_SHUNT_MASK BIT(0) -+ - #define TEMPERATURE_LSB 652 /* 0.652 degrees Celsius */ - #define VOLTAGE_LSB 3662 /* 3.662 mV */ - #define SHUNT_RESISTOR_DEFAULT 255000 /* 255 mOhm */ -@@ -561,6 +564,15 @@ static int tps23861_probe(struct i2c_cli - else - data->shunt_resistor = SHUNT_RESISTOR_DEFAULT; - -+ if (data->shunt_resistor == SHUNT_RESISTOR_DEFAULT) -+ regmap_clear_bits(data->regmap, -+ TPS23861_GENERAL_MASK_1, -+ TPS23861_CURRENT_SHUNT_MASK); -+ else -+ regmap_set_bits(data->regmap, -+ TPS23861_GENERAL_MASK_1, -+ TPS23861_CURRENT_SHUNT_MASK); -+ - hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, - data, &tps23861_chip_info, - NULL); |