This patchset includes the following fixes: - Enable the target functionality in the interrupt handling routine when the i2c transfer is about to finish. - Correct the read/write operation procedure. - Introduce a software flag to handle the bus error (BER) condition which is not caused by the i2c transfer. - Modify timeout calculation. - Assign the client address earlier logically. - Use an i2c frequency table for the frequency parameters assignment. - Coding style fix. The NPCM I2C driver is tested on NPCM750 and NPCM845 evaluation boards. Addressed comments from: - Andy Shevchenko : https://lore.kernel.org/lkml/ZwkFWVC3_5xr6OQW @smile.fi.intel.com/ - Andy Shevchenko : https://lore.kernel.org/lkml/ZwkFwABviY8ClyUo @smile.fi.intel.com/ Changes since version 6: - Modify code comments. - Remove redundant code check. - Remove i2c address mask. Changes since version 5: - Correct "EAGAIN" to "-EAGAIN" in the commit message. - Configure the bus->dest_addr by calling i2c_8bit_addr_from_msg() and remove the I2C_M_RD flag when calling i2c_recover_bus(). - Fix the commit message which meets a too small wrapping limit. Changes since version 4: - Add more description for the codes. - Modify the term "function" to "function()" in the commit message and code comments. Changes since version 3: - Remove "Bug fixes" in the cover letter title. - Modify the term "function" to "func()" in the commit message and code comments. - Correct the coding style. Changes since version 2: - Add more explanations in the commit message and code modification. - Use lower character names for declarations. - Remove Fixes tags in commits which are not to fix bugs. Changes since version 1: - Restore the npcm_i2caddr array length to fix the smatch warning. - Remove unused variables. - Handle the condition where scl_table_cnt reaches to the maximum value. - Fix the checkpatch warning. Charles Boyer (1): i2c: npcm: Enable slave in eob interrupt Tyrone Ting (3): i2c: npcm: Modify timeout evaluation mechanism i2c: npcm: Modify the client address assignment i2c: npcm: use i2c frequency table drivers/i2c/busses/i2c-npcm7xx.c | 424 ++++++++++++++++++++++++------- 1 file changed, 328 insertions(+), 96 deletions(-) base-commit: 663bff1ddfe4ecbba3bcf4a74646bb388b1ad5b2 -- 2.34.1
