diff options
| author | Eddie James <eajames@linux.ibm.com> | 2020-12-22 09:26:39 -0600 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2021-01-27 17:44:18 -0800 |
| commit | e5befc024cb4515d815662ed8746712cc5366bfc (patch) | |
| tree | ce946cdb9763b7381b8fda0747f02ce010deeb9e /include/linux/pmbus.h | |
| parent | c8d0d3fa946976c6bc69589375d7d063f0cb1492 (diff) | |
hwmon: (pmbus) Add a PMBUS_NO_CAPABILITY platform data flag
Some PMBus chips don't respond with valid data when reading the
CAPABILITY register. Add a flag that device drivers can set so
that the PMBus core driver doesn't use CAPABILITY to determine it's
behavior.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20201222152640.27749-2-eajames@linux.ibm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'include/linux/pmbus.h')
| -rw-r--r-- | include/linux/pmbus.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/pmbus.h b/include/linux/pmbus.h index 1ea5bae708a1..12cbbf305969 100644 --- a/include/linux/pmbus.h +++ b/include/linux/pmbus.h @@ -34,6 +34,15 @@ */ #define PMBUS_WRITE_PROTECTED BIT(1) +/* + * PMBUS_NO_CAPABILITY + * + * Some PMBus chips don't respond with valid data when reading the CAPABILITY + * register. For such chips, this flag should be set so that the PMBus core + * driver doesn't use CAPABILITY to determine it's behavior. + */ +#define PMBUS_NO_CAPABILITY BIT(2) + struct pmbus_platform_data { u32 flags; /* Device specific flags */ |