NVDEC_FALCON_DEBUGINFO
nvdec_writel(nvdec, 0xabcd1234, NVDEC_FALCON_DEBUGINFO);
nvdec_writel(nvdec, 0xabcd1234, NVDEC_FALCON_DEBUGINFO);
err = readl_poll_timeout(nvdec->regs + NVDEC_FALCON_DEBUGINFO, val, val == 0x0, 10, 100000);