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Message-ID: <20210318115210.2014204-2-bence98@sch.bme.hu>
Date: Thu, 18 Mar 2021 11:52:09 +0000
From: Bence Csókás <bence98@....bme.hu>
To: <linux-i2c@...r.kernel.org>
CC: Bence Csókás <bence98@....bme.hu>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH v3 1/2] i2c: Add I2C_AQ_NO_REP_START adapter quirk
This quirk signifies that the adapter cannot do a repeated
START, it always issues a STOP condition after transfers.
Signed-off-by: Bence Csókás <bence98@....bme.hu>
---
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
--
2.31.0
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