[PATCH v1 0/3] i2c: mlxbf: Fix master GW corruption

[Chris Babroski <cbabroski@nvidia.com>]

This patch series fixes a bug that corrupts the slave address used in read
phases and cleans up the code to prevent similar corruption scenarios from
occurring in the future.

When the MLXBF_I2C_F_SMBUS_BLOCK and/or MLXBF_I2C_F_SMBUS_PEC flags are set, the
flag bitmask values are shifted and written to the master gateway control
register instead of the single-bit flag values. This caused slave address
corruption in read phases (unlike write phases which use the data_desc[0] slave
address value).

Patch 1 fixes this corruption issue by converting the flags to booleans before
setting their values in the control register.

Patch 2 converts register field accesses from explicit shifts to
BIT()/GENMASK()/FIELD_PREP().

Patch 3 removes an unnecessary register write (dead code).

Chris Babroski (3):
  i2c: mlxbf: Fix master GW corruption from unmasked SMBus flags
  i2c: mlxbf: Use GENMASK()/FIELD_PREP() for GW fields
  i2c: mlxbf: Remove unused slave GW PEC handling

 drivers/i2c/busses/i2c-mlxbf.c | 40 +++++++++++++++++-----------------
 1 file changed, 20 insertions(+), 20 deletions(-)

-- 
2.34.1