From: Bence Csókás <bence98@sch.bme.hu>
Date: Wed, 31 Mar 2021 19:19:20 +0000 (+0000)
Subject: i2c: Add I2C_AQ_NO_REP_START adapter quirk
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=aca01415e076aa96cca0f801f4420ee5c10c660d;p=linux.git

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.

Suggested-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Bence Csókás <bence98@sch.bme.hu>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
---

diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 56622658b2158..a670ae129f4b9 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