From mboxrd@z Thu Jan 1 00:00:00 1970 From: Klaus Jensen Date: Fri, 3 Jun 2022 07:49:02 +0200 Subject: [PATCH] i2c: aspeed: do not mask SLAVE_MATCH In-Reply-To: <20220602054842.122271-1-its@irrelevant.dk> References: <20220602054842.122271-1-its@irrelevant.dk> Message-ID: List-Id: To: linux-aspeed@lists.ozlabs.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Jun 2 07:48, Klaus Jensen wrote: > From: Klaus Jensen > > 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 > --- > 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_SDA_DL_TIMEOUT | \ > ASPEED_I2CD_INTR_BUS_RECOVER_DONE | \ > + ASPEED_I2CD_INTR_SLAVE_MATCH | \ > ASPEED_I2CD_INTR_SCL_TIMEOUT | \ > ASPEED_I2CD_INTR_ABNORMAL | \ > ASPEED_I2CD_INTR_NORMAL_STOP | \ > -- > 2.36.1 > I've been informed that SLAVE_MATCH should always be generated, regardless of INTR_CTRL, so please ignore this patch. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 488 bytes Desc: not available URL: