19.08.2022 15:23, Akhil R пишет: > if (of_device_is_compatible(np, "nvidia,tegra210-i2c-vi")) > i2c_dev->is_vi = true; > + else > + i2c_dev->dma_support = !!(of_find_property(np, "dmas", NULL)); 1. You leak the np returned by of_find_property(). 2. There is device_property_read_bool() for this kind of property-exists checks. 3. If "dmas" is missing in DT, then dma_request_chan() should return NULL and everything will work fine. I suppose you haven't tried to test this code.