linux/drivers/i2c
Jan Glauber dfa2ccc30e Revert "i2c: octeon: thunderx: Limit register access retries"
This reverts commit 70121f7f37 ("i2c: octeon: thunderx: Limit register access retries").
Using readq_poll_timeout instead of __raw_readq triggers the following
debug warning:

[   78.871568] ipmi_ssif: Trying hotmod-specified SSIF interface at i2c address 0x12, adapter Cavium ThunderX i2c adapter at 0000:01:09.4, slave address 0x0
[   78.886107] do not call blocking ops when !TASK_RUNNING; state=2 set at [<fffffc00080e0088>] prepare_to_wait_event+0x58/0x10c
[   78.897436] ------------[ cut here ]------------
[   78.902050] WARNING: CPU: 6 PID: 2235 at kernel/sched/core.c:7718 __might_sleep+0x80/0x88

[...]

[   79.133553] [<fffffc00080c3aac>] __might_sleep+0x80/0x88
[   79.138862] [<fffffc0000e30138>] octeon_i2c_test_iflg+0x4c/0xbc [i2c_thunderx]
[   79.146077] [<fffffc0000e30958>] octeon_i2c_test_ready+0x18/0x70 [i2c_thunderx]
[   79.153379] [<fffffc0000e30b04>] octeon_i2c_wait+0x154/0x1a4 [i2c_thunderx]
[   79.160334] [<fffffc0000e310bc>] octeon_i2c_xfer+0xf4/0xf60 [i2c_thunderx]

Signed-off-by: Jan Glauber <jglauber@cavium.com>
Acked-by: Steven J. Hill <steven.hill@cavium.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-11-29 20:04:21 +01:00
..
algos i2c: algo-bit: declare i2c_bit_quirk_no_clk_stretch as static 2016-05-11 17:16:30 +02:00
busses Revert "i2c: octeon: thunderx: Limit register access retries" 2016-11-29 20:04:21 +01:00
muxes i2c: i2c-mux-pca954x: fix deselect enabling for device-tree 2016-11-19 21:49:29 +01:00
Kconfig i2c: mux: fix up dependencies 2016-11-14 18:23:30 +01:00
Makefile i2c: slave-eeprom: add eeprom simulator driver 2014-12-11 22:25:54 +01:00
i2c-boardinfo.c i2c: remove __init from i2c_register_board_info() 2016-06-19 14:13:50 +02:00
i2c-core.c i2c: core: fix NULL pointer dereference under race condition 2016-11-04 20:36:58 +01:00
i2c-core.h i2c: remove FSF address 2014-11-07 18:35:33 +01:00
i2c-dev.c i2c-dev: don't get i2c adapter via i2c_dev 2016-07-08 10:29:31 +09:00
i2c-mux.c i2c: move locking operations to their own struct 2016-08-30 22:56:14 +02:00
i2c-slave-eeprom.c i2c: Drop owner assignment from i2c_driver 2015-08-10 08:37:35 +02:00
i2c-smbus.c i2c: i2c-smbus: fix i2c_handle_smbus_host_notify documentation 2016-07-18 20:09:54 +02:00
i2c-stub.c i2c: i2c-stub: sort includes 2016-02-20 23:33:39 +01:00