i2c: aspeed: Fix initial values of master and slave state
[ Upstream commit 517fde0eb5
]
This patch changes the order of enum aspeed_i2c_master_state and
enum aspeed_i2c_slave_state defines to make their initial value to
ASPEED_I2C_MASTER_INACTIVE and ASPEED_I2C_SLAVE_STOP respectively.
In case of multi-master use, if a slave data comes ahead of the
first master xfer, master_state starts from an invalid state so
this change fixes the issue.
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
parent
ab605544f6
commit
a8c0b9acf0
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@ -110,22 +110,22 @@
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#define ASPEED_I2CD_DEV_ADDR_MASK GENMASK(6, 0)
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enum aspeed_i2c_master_state {
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ASPEED_I2C_MASTER_INACTIVE,
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ASPEED_I2C_MASTER_START,
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ASPEED_I2C_MASTER_TX_FIRST,
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ASPEED_I2C_MASTER_TX,
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ASPEED_I2C_MASTER_RX_FIRST,
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ASPEED_I2C_MASTER_RX,
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ASPEED_I2C_MASTER_STOP,
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ASPEED_I2C_MASTER_INACTIVE,
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};
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enum aspeed_i2c_slave_state {
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ASPEED_I2C_SLAVE_STOP,
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ASPEED_I2C_SLAVE_START,
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ASPEED_I2C_SLAVE_READ_REQUESTED,
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ASPEED_I2C_SLAVE_READ_PROCESSED,
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ASPEED_I2C_SLAVE_WRITE_REQUESTED,
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ASPEED_I2C_SLAVE_WRITE_RECEIVED,
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ASPEED_I2C_SLAVE_STOP,
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};
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struct aspeed_i2c_bus {
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