Re: [PATCH 0/5] hwmon: (pmbus/core) Introduce and use pmbus_read_smbus_i2c_block_data()

Nuno Sá <[email protected]> Tue, 4 Aug 2026 09:50:58 +0100
Newsgroups org.kernel.vger.linux-hwmon
Message-ID <anGnwfBn7Hi87p1J@nsa>
On Mon, Aug 03, 2026 at 12:35:30PM -0700, Guenter Roeck wrote:
> PMBus drivers need support for reading SMBus block data. Unfortunately,
> not all i2C controllers support this command.
> 
> Implement pmbus_read_smbus_i2c_block_data() which first tries to use
> i2c_smbus_read_block_data(). If not supported, try to emulate it by calling
> i2c_smbus_read_i2c_block_data(). Export the new function for use in PMBus
> drivers, and use it in affected drivers.
> 
> ----------------------------------------------------------------
> Guenter Roeck (5):
>       hwmon: (pmbus/core) Introduce pmbus_read_smbus_i2c_block_data()
>       hwmon: (pmbus/adm1275) Use pmbus_read_smbus_i2c_block_data for block commands
>       hwmon: (pmbus/ltc2978) Use pmbus_read_smbus_i2c_block_data for block commands
>       hwmon: (pmbus/max20830) Use pmbus_read_smbus_i2c_block_data for block commands
>       hwmon: (pmbus/ir36021) Use pmbus_read_smbus_i2c_block_data for block commands
> 
>  drivers/hwmon/pmbus/adm1275.c    |   9 +---
>  drivers/hwmon/pmbus/ir36021.c    |  22 +++------
>  drivers/hwmon/pmbus/ltc2978.c    |  21 ++++----
>  drivers/hwmon/pmbus/max20830.c   |  34 ++-----------
>  drivers/hwmon/pmbus/pmbus.h      |   1 +
>  drivers/hwmon/pmbus/pmbus_core.c | 102 ++++++++++++++++++++++++++++++++++++---
>  6 files changed, 117 insertions(+), 72 deletions(-)

Just one minor comment from me. With it:

Reviewed-by: Nuno Sá <[email protected]>