delay_mode
if (delay_mode(regs)) {
unsigned int delay_mode;
delay_mode = readl(dev->mmio + 4);
delay_mode &= 0xfffffef0;
writel(delay_mode, dev->mmio + 4);
writel(delay_mode | 0x100, dev->mmio + 4);
writel(delay_mode, dev->mmio + 4);
int dst_wait_dst_ready(struct dst_state *state, u8 delay_mode)
int dst_wait_dst_ready(struct dst_state *state, u8 delay_mode);