[PATCH] i2c: aspeed: do not mask SLAVE_MATCH

Klaus Jensen its at irrelevant.dk
Thu Jun 2 15:48:42 AEST 2022

From: Klaus Jensen <k.jensen at samsung.com>

When commit f9eb91350bb2 ("i2c: aspeed: added slave support for Aspeed
I2C driver") added slave mode support, the SLAVE_MATCH interrupt bit
(bit 7) was not added to INTR_ALL and so will never be set by the Aspeed
I2C controller.

Fixes: f9eb91350bb2 ("i2c: aspeed: added slave support for Aspeed I2C driver")
Signed-off-by: Klaus Jensen <k.jensen at samsung.com>
I am working on slave mode in QEMU and noticed that the device would not
generate the SLAVE_ADDR_RX_MATCH interrupt. This patch fixes it, but I
do not have a spec sheet on the Aspeed, so I am not sure if this is the
intended behavior?

 drivers/i2c/busses/i2c-aspeed.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c
index 771e53d3d197..7f432babcd72 100644
--- a/drivers/i2c/busses/i2c-aspeed.c
+++ b/drivers/i2c/busses/i2c-aspeed.c
@@ -86,6 +86,7 @@
 #define ASPEED_I2CD_INTR_ALL						       \
+		 ASPEED_I2CD_INTR_SLAVE_MATCH |				       \
 		 ASPEED_I2CD_INTR_SCL_TIMEOUT |				       \
 		 ASPEED_I2CD_INTR_ABNORMAL |				       \
 		 ASPEED_I2CD_INTR_NORMAL_STOP |				       \

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