diff options
| author | Vadim Pasternak <vadimp@mellanox.com> | 2020-01-13 15:08:36 +0000 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2020-01-23 13:15:10 -0800 |
| commit | b9fa0a3acfd86c7d02cf0aac5105c0297bf3c5b0 (patch) | |
| tree | b99411e935bee5caa09d3085d38b4a21457d0e40 /drivers/hwmon/pmbus/pxe1610.c | |
| parent | d9c8ae69b9962197883f79c7df3fd562cc52b21a (diff) | |
| download | linux-b9fa0a3acfd86c7d02cf0aac5105c0297bf3c5b0.tar.bz2 | |
hwmon: (pmbus/core) Add support for vid mode detection per page bases
Add support for VID protocol detection per page bases, instead of
detecting it based on "PMBU_VOUT" readout from page 0 for all the pages
supported by particular device.
The reason that some devices allows to configure different VID modes
per page within the same device.
Patch modifies the field "vrm_version" within the structure
"pmbus_driver_info" to be per page array.
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Link: https://lore.kernel.org/r/20200113150841.17670-2-vadimp@mellanox.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/pmbus/pxe1610.c')
| -rw-r--r-- | drivers/hwmon/pmbus/pxe1610.c | 44 |
1 files changed, 24 insertions, 20 deletions
diff --git a/drivers/hwmon/pmbus/pxe1610.c b/drivers/hwmon/pmbus/pxe1610.c index ebe3f023f840..517584cff3de 100644 --- a/drivers/hwmon/pmbus/pxe1610.c +++ b/drivers/hwmon/pmbus/pxe1610.c @@ -19,26 +19,30 @@ static int pxe1610_identify(struct i2c_client *client, struct pmbus_driver_info *info) { - if (pmbus_check_byte_register(client, 0, PMBUS_VOUT_MODE)) { - u8 vout_mode; - int ret; - - /* Read the register with VOUT scaling value.*/ - ret = pmbus_read_byte_data(client, 0, PMBUS_VOUT_MODE); - if (ret < 0) - return ret; - - vout_mode = ret & GENMASK(4, 0); - - switch (vout_mode) { - case 1: - info->vrm_version = vr12; - break; - case 2: - info->vrm_version = vr13; - break; - default: - return -ENODEV; + int i; + + for (i = 0; i < PXE1610_NUM_PAGES; i++) { + if (pmbus_check_byte_register(client, i, PMBUS_VOUT_MODE)) { + u8 vout_mode; + int ret; + + /* Read the register with VOUT scaling value.*/ + ret = pmbus_read_byte_data(client, i, PMBUS_VOUT_MODE); + if (ret < 0) + return ret; + + vout_mode = ret & GENMASK(4, 0); + + switch (vout_mode) { + case 1: + info->vrm_version[i] = vr12; + break; + case 2: + info->vrm_version[i] = vr13; + break; + default: + return -ENODEV; + } } } |