Raviteja Narayanam a14d6a9ddf Revert "i2c: cadence: Fix the hold bit setting" ... [ Upstream commit 0db9254d6b ] This reverts commit d358def706. There are two issues with "i2c: cadence: Fix the hold bit setting" commit. 1. In case of combined message request from user space, when the HOLD bit is cleared in cdns_i2c_mrecv function, a STOP condition is sent on the bus even before the last message is started. This is because when the HOLD bit is cleared, the FIFOS are empty and there is no pending transfer. The STOP condition should occur only after the last message is completed. 2. The code added by the commit is redundant. Driver is handling the setting/clearing of HOLD bit in right way before the commit. The setting of HOLD bit based on 'bus_hold_flag' is taken care in cdns_i2c_master_xfer function even before cdns_i2c_msend/cdns_i2c_recv functions. The clearing of HOLD bit is taken care at the end of cdns_i2c_msend and cdns_i2c_recv functions based on bus_hold_flag and byte count. Since clearing of HOLD bit is done after the slave address is written to the register (writing to address register triggers the message transfer), it is ensured that STOP condition occurs at the right time after completion of the pending transfer (last message). Signed-off-by: Raviteja Narayanam <raviteja.narayanam@xilinx.com> Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Wolfram Sang <wsa@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-08-05 09:59:50 +02:00
..
algos	i2c: algo-pca: Add 0x78 as SCL stuck low status for PCA9665	2020-07-09 09:37:54 +02:00
busses	Revert "i2c: cadence: Fix the hold bit setting"	2020-08-05 09:59:50 +02:00
muxes	i2c: mux: demux-pinctrl: Fix an error handling path in 'i2c_demux_pinctrl_probe()'	2020-05-27 17:46:18 +02:00
Kconfig	docs: i2c: convert to ReST and add to driver-api bookset	2019-07-31 13:25:27 -06:00
Makefile	i2c: don't use any __deprecated handling anymore	2018-08-24 17:26:43 +02:00
i2c-boardinfo.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
i2c-core-acpi.c	i2c: acpi: put device when verifying client fails	2020-03-18 07:17:58 +01:00
i2c-core-base.c	i2c: fix missing pm_runtime_put_sync in i2c_device_probe	2020-05-27 17:46:15 +02:00
i2c-core-of.c	i2c: core: fix use after free in of_i2c_notify	2019-11-15 22:01:13 +01:00
i2c-core-slave.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
i2c-core-smbus.c	i2c: core: check returned size of emulated smbus block read	2020-06-30 15:37:02 -04:00
i2c-core.h	Merge branch 'i2c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2019-07-15 21:10:39 -07:00
i2c-dev.c	i2c: dev: Fix the race between the release of i2c_dev and cdev	2020-05-27 17:46:07 +02:00
i2c-mux.c	i2c: mux: add sysfs header	2019-06-22 07:32:33 +02:00
i2c-slave-eeprom.c	i2c: slave-eeprom: Add read only mode	2019-09-28 20:44:12 +02:00
i2c-smbus.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
i2c-stub.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00