SSFSTS_CTL
val = readl(ispi->sregs + SSFSTS_CTL);
writel(val, ispi->sregs + SSFSTS_CTL);
value = readl(ispi->sregs + SSFSTS_CTL);
return readl_poll_timeout(ispi->sregs + SSFSTS_CTL, val,
writel(val, ispi->sregs + SSFSTS_CTL);
status = readl(ispi->sregs + SSFSTS_CTL);