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.
+ 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;
}
