BUTTRESS_REG_PWR_STATUS
ret = readl_poll_timeout(isp->base + BUTTRESS_REG_PWR_STATUS,
ret = readl_poll_timeout(isp->base + BUTTRESS_REG_PWR_STATUS,
ret = readl_poll_timeout(isp->base + BUTTRESS_REG_PWR_STATUS,
ret = readl_poll_timeout(isp->base + BUTTRESS_REG_PWR_STATUS,
val = readl(isp->base + BUTTRESS_REG_PWR_STATUS);
ret = readl_poll_timeout(isp->base + BUTTRESS_REG_PWR_STATUS, val,