From aca01415e076aa96cca0f801f4420ee5c10c660d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bence=20Cs=C3=B3k=C3=A1s?= <bence98@sch.bme.hu>
Date: Wed, 31 Mar 2021 19:19:20 +0000
Subject: [PATCH] i2c: Add I2C_AQ_NO_REP_START adapter quirk
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Git-commit: aca01415e076aa96cca0f801f4420ee5c10c660d
Patch-mainline: v5.13-rc1
References: git-fixes
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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
--
2.26.2