linux_dsm_epyc7002/drivers/i2c
Harini Katakam 8a86c3aee0 i2c: cadence: Check for errata condition involving master receive
Cadence I2C controller has the following bugs:
- completion indication is not given to the driver at the end of
a read/receive transfer with HOLD bit set.
- Invalid read transaction are generated on the bus when HW timeout
condition occurs with HOLD bit set.

As a result of the above, if a set of messages to be transferred with
repeated start includes any message following a read message,
completion is never indicated and timeout occurs.
Hence a check is implemented to return -EOPNOTSUPP for such sequences.

Signed-off-by: Harini Katakam <harinik@xilinx.com>
Signed-off-by: Vishnu Motghare <vishnum@xilinx.com>
[wsa: fixed some whitespaces]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-01-14 11:36:58 +01:00
..
algos i2c: remove FSF address 2014-11-07 18:35:33 +01:00
busses i2c: cadence: Check for errata condition involving master receive 2015-01-14 11:36:58 +01:00
muxes i2c: muxes: drop owner assignment from platform_drivers 2014-10-20 16:20:38 +02:00
i2c-boardinfo.c i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-core.c i2c: Remove support for legacy PM 2014-12-22 20:09:08 +01:00
i2c-core.h i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-dev.c i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-mux.c i2c: mux: create "channel-n" symlinks for child segments in the mux device 2014-11-18 16:09:49 +01:00
i2c-slave-eeprom.c i2c: slave-eeprom: add eeprom simulator driver 2014-12-11 22:25:54 +01:00
i2c-smbus.c i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-stub.c i2c: remove FSF address 2014-11-07 18:35:33 +01:00
Kconfig i2c: slave-eeprom: add eeprom simulator driver 2014-12-11 22:25:54 +01:00
Makefile i2c: slave-eeprom: add eeprom simulator driver 2014-12-11 22:25:54 +01:00