VIDCON1
writel(VIDCON1_VCLK_HOLD, ctx->regs + VIDCON1(0));
writel(vidcon1, ctx->regs + driver_data->timing_base + VIDCON1);
writel(pd->vidcon1, sfb->regs + VIDCON1);
reg = readl(sfb->regs + VIDCON1);
writel(reg, sfb->regs + VIDCON1);
writel(pd->vidcon1, sfb->regs + VIDCON1);
reg = readl(sfb->regs + VIDCON1);
writel(reg, sfb->regs + VIDCON1);
writel(pd->vidcon1, sfb->regs + VIDCON1);