[PATCH AUTOSEL 5.12 044/116] i2c: Add I2C_AQ_NO_REP_START adapter quirk
From: Sasha Levin <sashal@kernel.org>
Date: 2021-05-05 16:34:40
Also in:
linux-i2c, lkml
Subsystem:
i2c subsystem, the rest · Maintainers:
Wolfram Sang, Linus Torvalds
From: Bence Csókás <bence98@sch.bme.hu> [ Upstream commit aca01415e076aa96cca0f801f4420ee5c10c660d ] 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> --- include/linux/i2c.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 56622658b215..a670ae129f4b 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h@@ -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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2.30.2