AST2600 i2c irq issue
peda at axentia.se
Fri Oct 18 15:28:51 AEDT 2019
On 2019-10-18 00:29, Jae Hyun Yoo wrote:
> On 10/17/2019 1:31 PM, Eddie James wrote:
>> I was also able to "fix" this by simple returning IRQ_NONE if irq_status
>> == 0 in the interrupt handler. But probably not a good solution.
> A fix like below, right?
> @@ -603,6 +603,9 @@ static irqreturn_t aspeed_i2c_bus_irq(int irq, void
> irq_received = readl(bus->base + ASPEED_I2C_INTR_STS_REG);
> + if (!irq_received)
> + return IRQ_NONE;
Don't forget spin_unlock(&bus->lock);
More information about the Linux-aspeed