On Tue, Sep 08, 2020 at 03:00:59PM -0500, Eddie James wrote: > Mask the IRQ status to only the bits that the driver checks. This > prevents excessive driver warnings when operating in slave mode > when additional bits are set that the driver doesn't handle. > > Signed-off-by: Eddie James <eaja...@linux.ibm.com>
Reviewed-by: Tao Ren <rentao.b...@gmail.com> > --- > drivers/i2c/busses/i2c-aspeed.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c > index 31268074c422..2a388911038a 100644 > --- a/drivers/i2c/busses/i2c-aspeed.c > +++ b/drivers/i2c/busses/i2c-aspeed.c > @@ -69,6 +69,7 @@ > * These share bit definitions, so use the same values for the enable & > * status bits. > */ > +#define ASPEED_I2CD_INTR_ALL 0xf000ffff > #define ASPEED_I2CD_INTR_SDA_DL_TIMEOUT BIT(14) > #define ASPEED_I2CD_INTR_BUS_RECOVER_DONE BIT(13) > #define ASPEED_I2CD_INTR_SLAVE_MATCH BIT(7) > @@ -604,6 +605,7 @@ static irqreturn_t aspeed_i2c_bus_irq(int irq, void > *dev_id) > writel(irq_received & ~ASPEED_I2CD_INTR_RX_DONE, > bus->base + ASPEED_I2C_INTR_STS_REG); > readl(bus->base + ASPEED_I2C_INTR_STS_REG); > + irq_received &= ASPEED_I2CD_INTR_ALL; > irq_remaining = irq_received; > > #if IS_ENABLED(CONFIG_I2C_SLAVE) > -- > 2.26.2 >
