device_property_read_u64
ret = device_property_read_u64(dev, "clk_rate", &clk_rate_hz);
if (!device_property_read_u64(dev, "ti,poll-period", &val64))
device_property_read_u64(mmc_dev(host->mmc),
device_property_read_u64(mmc_dev(host->mmc),
if (!device_property_read_u64(dev, "loongson,suspend-address", &suspend_addr))
ret = device_property_read_u64(&pdev->dev, "nvidia,gpu-mem-base-pa",
ret = device_property_read_u64(&pdev->dev, "nvidia,gpu-mem-size",
device_property_read_u64(&adev->dev, "clock-frequency", &rate);