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i2c: Add I2C_AQ_NO_REP_START adapter quirk
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[ Upstream commit aca0141 ]

This quirk signifies that the adapter cannot do a repeated
START, it always issues a STOP condition after transfers.

Suggested-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Bence Csókás <bence98@sch.bme.hu>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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bence98 authored and gregkh committed May 19, 2021
1 parent c6d2f8f commit 2c098ad
Showing 1 changed file with 2 additions and 0 deletions.
2 changes: 2 additions & 0 deletions include/linux/i2c.h
Expand Up @@ -687,6 +687,8 @@ struct i2c_adapter_quirks {
#define I2C_AQ_NO_ZERO_LEN_READ BIT(5)
#define I2C_AQ_NO_ZERO_LEN_WRITE BIT(6)
#define I2C_AQ_NO_ZERO_LEN (I2C_AQ_NO_ZERO_LEN_READ | I2C_AQ_NO_ZERO_LEN_WRITE)
/* adapter cannot do repeated START */
#define I2C_AQ_NO_REP_START BIT(7)

/*
* i2c_adapter is the structure used to identify a physical i2c bus along
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