Grygorii Strashko cda2109a26 i2c: omap: query STP always when NACK is received ... According to I2C specification the NACK should be handled as folowing: "When SDA remains HIGH during this ninth clock pulse, this is defined as the Not Acknowledge signal. The master can then gene rate either a STOP condition to abort the transfer, or a repeated START condition to start a new transfer." [http://www.nxp.com/documents/user_manual/UM10204.pdf] The same is recomened by TI I2C wiki: http://processors.wiki.ti.com/index.php/I2C_Tips Currently, the OMAP I2C driver interrupts I2C trunsfer in case of NACK, but It queries Stop condition OMAP_I2C_CON_REG.STP=1 only if NACK has been received during the last message transmitting/recieving. This may lead to stuck Bus in "Bus Busy" until I2C IP reset (idle/enable). Hence, fix it by querying Stop condition (STP) always when NACK is received. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Acked-by: Hein Tibosch <hein_tibosch@yahoo.es> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>		2013-08-19 14:08:19 +02:00
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algos
busses	i2c: omap: query STP always when NACK is received	2013-08-19 14:08:19 +02:00
muxes	Removal of GENERIC_GPIO for v3.10	2013-05-09 09:59:16 -07:00
i2c-boardinfo.c
i2c-core.c	i2c: Improve logging on failure to probe for ->class devices	2013-08-15 14:49:58 +02:00
i2c-core.h
i2c-dev.c	new helper: file_inode(file)	2013-02-22 23:31:31 -05:00
i2c-mux.c	i2c: Make the return type of i2c_del_mux_adapter() void	2013-04-02 07:07:32 +02:00
i2c-smbus.c
i2c-stub.c
Kconfig	drivers/i2c: remove !S390 dependency, add missing GENERIC_HARDIRQS dependencies	2013-03-11 09:59:02 +01:00
Makefile