Messages in this thread | | | From | Frank Li <> | Subject | Re: [PATCH 1/1] iio: imx8qxp-adc: fix irq flood when call imx8qxp_adc_read_raw() | Date | Tue, 29 Nov 2022 19:49:54 +0000 |
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> On 11/29/22 08:45, Frank Li wrote: > readl(adc->regs + IMX8QXP_ADR_ADC_FCTRL)); > > @@ -272,6 +275,10 @@ static irqreturn_t imx8qxp_adc_isr(int irq, void > *dev_id) > > if (fifo_count) > > complete(&adc->completion); > > Shouldn't the completion be triggered after the reading of the samples? > otherwise you have a race condition on a multi-processor system.
Yes, you are right. I will send updated patch soon.
> > > > > + for (i = 0; i < fifo_count; i++) > > + adc->fifo[i] = FIELD_GET(IMX8QXP_ADC_RESFIFO_VAL_MASK, > > + readl_relaxed(adc->regs + IMX8QXP_ADR_ADC_RESFIFO)); > > + > > return IRQ_HANDLED; > > } > >
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