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authorBence Csókás <bence98@sch.bme.hu>2021-03-31 19:19:20 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-05-19 10:08:22 +0200
commitfadf3660a24f8190c5235175f5529c929132c63a (patch)
tree2c4e84f1516051c98422bdc85b25d4ca5cf72ba5 /include
parentASoC: Intel: bytcr_rt5640: Add quirk for the Chuwi Hi8 tablet (diff)
downloadwireguard-linux-fadf3660a24f8190c5235175f5529c929132c63a.tar.xz
wireguard-linux-fadf3660a24f8190c5235175f5529c929132c63a.zip
i2c: Add I2C_AQ_NO_REP_START adapter quirk
[ 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>
Diffstat (limited to 'include')
-rw-r--r--include/linux/i2c.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 1361637c369d..af2b799d7a66 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -677,6 +677,8 @@ 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