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If arbitration is lost, the master automatically changes to slave mode. I2SR_IBB may or may not be reset by hardware. Raising a STOP condition by resetting I2CR_MSTA has no effect and will not clear I2SR_IBB. So calling i2c_imx_bus_busy() is not required and would busy-wait until timeout. Signed-off-by: Christian Eggers <ceggers@arri.de> Tested (not extensively) on Vybrid VF500 (Toradex VF50): Tested-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Oleksij Rempel <o.rempel@pengutronix.de> Cc: stable@vger.kernel.org # Requires trivial backporting, simple remove # the 3rd argument from the calls to # i2c_imx_bus_busy(). Signed-off-by: Wolfram Sang <wsa@kernel.org> |
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.. | ||
algos | ||
busses | ||
muxes | ||
i2c-boardinfo.c | ||
i2c-core-acpi.c | ||
i2c-core-base.c | ||
i2c-core-of.c | ||
i2c-core-slave.c | ||
i2c-core-smbus.c | ||
i2c-core.h | ||
i2c-dev.c | ||
i2c-mux.c | ||
i2c-slave-eeprom.c | ||
i2c-slave-testunit.c | ||
i2c-smbus.c | ||
i2c-stub.c | ||
Kconfig | ||
Makefile |