MX3_PWMSR_FIFOAV
fifoav = FIELD_GET(MX3_PWMSR_FIFOAV, sr);
if (fifoav == FIELD_GET(MX3_PWMSR_FIFOAV, sr))
val = FIELD_GET(MX3_PWMSR_FIFOAV, readl_relaxed(imx->mmio_base + MX3_PWMSR));