DECON_VIDCON0
decon_set_bits(ctx, DECON_VIDCON0, VIDCON0_ENVID | VIDCON0_ENVID_F, ~0);
writel(0, ctx->addr + DECON_VIDCON0);
readl_poll_timeout(ctx->addr + DECON_VIDCON0, val,
writel(VIDCON0_SWRESET, ctx->addr + DECON_VIDCON0);
ret = readl_poll_timeout(ctx->addr + DECON_VIDCON0, val,
writel(VIDCON0_CLKVALUP | VIDCON0_VLCKFREE, ctx->addr + DECON_VIDCON0);