diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-03-06 14:47:06 -0600 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-03-06 14:47:06 -0600 |
| commit | 08e39fcb92b039189006566a97aa9565fe20fb83 (patch) | |
| tree | 5f922f45eb02a91755698d1ce7562b878bd6a026 | |
| parent | c20c4a084a878df35a7e394a7e646f303b505eaf (diff) | |
| parent | 44f2f882909fedfc3a56e4b90026910456019743 (diff) | |
Merge tag 'hwmon-for-v5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fix an error return in the adt7462 driver, bad voltage limits reported
by the xdpe12284 driver, and a broken documentation reference in the
adm1177 driver documentation"
* tag 'hwmon-for-v5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (adt7462) Fix an error return in ADT7462_REG_VOLT()
hwmon: (pmbus/xdpe12284) Add callback for vout limits conversion
docs: adm1177: fix a broken reference
| -rw-r--r-- | Documentation/hwmon/adm1177.rst | 3 | ||||
| -rw-r--r-- | drivers/hwmon/adt7462.c | 2 | ||||
| -rw-r--r-- | drivers/hwmon/pmbus/xdpe12284.c | 54 |
3 files changed, 56 insertions, 3 deletions
diff --git a/Documentation/hwmon/adm1177.rst b/Documentation/hwmon/adm1177.rst index c81e0b4abd28..471be1e98d6f 100644 --- a/Documentation/hwmon/adm1177.rst +++ b/Documentation/hwmon/adm1177.rst @@ -20,8 +20,7 @@ Usage Notes ----------- This driver does not auto-detect devices. You will have to instantiate the -devices explicitly. Please see Documentation/i2c/instantiating-devices for -details. +devices explicitly. Please see :doc:`/i2c/instantiating-devices` for details. Sysfs entries diff --git a/drivers/hwmon/adt7462.c b/drivers/hwmon/adt7462.c index 9632e2e3c4bb..319a0519ebdb 100644 --- a/drivers/hwmon/adt7462.c +++ b/drivers/hwmon/adt7462.c @@ -413,7 +413,7 @@ static int ADT7462_REG_VOLT(struct adt7462_data *data, int which) return 0x95; break; } - return -ENODEV; + return 0; } /* Provide labels for sysfs */ diff --git a/drivers/hwmon/pmbus/xdpe12284.c b/drivers/hwmon/pmbus/xdpe12284.c index ecd9b65627ec..660556b89e9f 100644 --- a/drivers/hwmon/pmbus/xdpe12284.c +++ b/drivers/hwmon/pmbus/xdpe12284.c @@ -18,6 +18,59 @@ #define XDPE122_AMD_625MV 0x10 /* AMD mode 6.25mV */ #define XDPE122_PAGE_NUM 2 +static int xdpe122_read_word_data(struct i2c_client *client, int page, int reg) +{ + const struct pmbus_driver_info *info = pmbus_get_driver_info(client); + long val; + s16 exponent; + s32 mantissa; + int ret; + + switch (reg) { + case PMBUS_VOUT_OV_FAULT_LIMIT: + case PMBUS_VOUT_UV_FAULT_LIMIT: + ret = pmbus_read_word_data(client, page, reg); + if (ret < 0) + return ret; + + /* Convert register value to LINEAR11 data. */ + exponent = ((s16)ret) >> 11; + mantissa = ((s16)((ret & GENMASK(10, 0)) << 5)) >> 5; + val = mantissa * 1000L; + if (exponent >= 0) + val <<= exponent; + else + val >>= -exponent; + + /* Convert data to VID register. */ + switch (info->vrm_version[page]) { + case vr13: + if (val >= 500) + return 1 + DIV_ROUND_CLOSEST(val - 500, 10); + return 0; + case vr12: + if (val >= 250) + return 1 + DIV_ROUND_CLOSEST(val - 250, 5); + return 0; + case imvp9: + if (val >= 200) + return 1 + DIV_ROUND_CLOSEST(val - 200, 10); + return 0; + case amd625mv: + if (val >= 200 && val <= 1550) + return DIV_ROUND_CLOSEST((1550 - val) * 100, + 625); + return 0; + default: + return -EINVAL; + } + default: + return -ENODATA; + } + + return 0; +} + static int xdpe122_identify(struct i2c_client *client, struct pmbus_driver_info *info) { @@ -70,6 +123,7 @@ static struct pmbus_driver_info xdpe122_info = { PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT, .identify = xdpe122_identify, + .read_word_data = xdpe122_read_word_data, }; static int xdpe122_probe(struct i2c_client *client, |