diff options
| author | Alexis Czezar Torreno <alexisczezar.torreno@analog.com> | 2026-07-22 09:29:30 +0800 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2026-07-27 20:30:44 -0700 |
| commit | a5ee2123eac8557dc048c87494bfd467b9168f5d (patch) | |
| tree | 5998d04a283053040c67f9a6fdcecdd77a7e3b07 /drivers/hwmon | |
| parent | 22d88b5d1e5c43c2f3c54f5e019070e4d6092338 (diff) | |
| download | linux-next-a5ee2123eac8557dc048c87494bfd467b9168f5d.tar.gz linux-next-a5ee2123eac8557dc048c87494bfd467b9168f5d.zip | |
hwmon: (pmbus/max34440): add support for newer version of max34451
The MAX34451 released a newer version called max34451etna8+.
This simply changes the direct format coefficients
Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
Link: https://lore.kernel.org/r/20260722-max34451_fixes-v2-2-bbddb18ec1d6@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/pmbus/max34440.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/hwmon/pmbus/max34440.c b/drivers/hwmon/pmbus/max34440.c index e56057e9273c..81514727565f 100644 --- a/drivers/hwmon/pmbus/max34440.c +++ b/drivers/hwmon/pmbus/max34440.c @@ -59,6 +59,7 @@ enum chips { #define MAX34440_IOUT_OC_FAULT_LIMIT 0x4A #define MAX34451ETNA6_MFR_REV 0x0012 +#define MAX34451ETNA8_MFR_REV 0x0014 #define MAX34451_MFR_CHANNEL_CONFIG 0xe4 #define MAX34451_MFR_CHANNEL_CONFIG_SEL_MASK 0x3f @@ -343,12 +344,24 @@ static int max34451_set_supported_funcs(struct i2c_client *client, max34451_na6 = true; data->info.format[PSC_VOLTAGE_IN] = direct; data->info.format[PSC_CURRENT_IN] = direct; - data->info.m[PSC_VOLTAGE_IN] = 1; + data->info.b[PSC_VOLTAGE_IN] = 0; - data->info.R[PSC_VOLTAGE_IN] = 3; - data->info.m[PSC_CURRENT_IN] = 1; data->info.b[PSC_CURRENT_IN] = 0; - data->info.R[PSC_CURRENT_IN] = 2; + if (rv >= MAX34451ETNA8_MFR_REV) { + data->info.m[PSC_VOLTAGE_IN] = 125; + data->info.R[PSC_VOLTAGE_IN] = 0; + data->info.m[PSC_VOLTAGE_OUT] = 125; + data->info.R[PSC_VOLTAGE_OUT] = 0; + data->info.m[PSC_CURRENT_IN] = 250; + data->info.R[PSC_CURRENT_IN] = -1; + data->info.m[PSC_CURRENT_OUT] = 250; + data->info.R[PSC_CURRENT_OUT] = -1; + } else { + data->info.m[PSC_VOLTAGE_IN] = 1; + data->info.R[PSC_VOLTAGE_IN] = 3; + data->info.m[PSC_CURRENT_IN] = 1; + data->info.R[PSC_CURRENT_IN] = 2; + } data->iout_oc_fault_limit = PMBUS_IOUT_OC_FAULT_LIMIT; data->iout_oc_warn_limit = PMBUS_IOUT_OC_WARN_LIMIT; } |