From: "Bence Csókás" <bence98@sch.bme.hu>
To: <linux-i2c@vger.kernel.org>
Cc: "Bence Csókás" <bence98@sch.bme.hu>, linux-kernel@vger.kernel.org
Subject: [PATCH v3 1/2] i2c: Add I2C_AQ_NO_REP_START adapter quirk
Date: Thu, 18 Mar 2021 11:52:09 +0000 [thread overview]
Message-ID: <20210318115210.2014204-2-bence98@sch.bme.hu> (raw)
In-Reply-To: <20210318115210.2014204-1-bence98@sch.bme.hu>
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@sch.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
next prev parent reply other threads:[~2021-03-18 11:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-18 11:52 [PATCH v3 0/2] Add i2c-cp2615 Bence Csókás
2021-03-18 11:52 ` Bence Csókás [this message]
2021-03-18 11:52 ` [PATCH v3 2/2] Adding i2c-cp2615: i2c support for Silicon Labs' CP2615 Digital Audio Bridge Bence Csókás
2021-03-20 2:30 ` kernel test robot
2021-03-31 7:09 ` Wolfram Sang
2021-03-31 9:58 ` Wolfram Sang
2021-03-31 18:17 ` Bence Csókás
2021-03-31 20:55 ` Wolfram Sang
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