IPU_PRG_CTL
val = readl(prg->regs + IPU_PRG_CTL);
writel(val, prg->regs + IPU_PRG_CTL);
val = readl(prg->regs + IPU_PRG_CTL);
writel(val, prg->regs + IPU_PRG_CTL);
val = readl(prg->regs + IPU_PRG_CTL);
writel(val, prg->regs + IPU_PRG_CTL);