On 25.08.2022 23:44, Michael Walle wrote:
Instead of hardcoding the underlying access method mtd_read() and duplicating all the error handling, rewrite the driver as a nvmem layout which just uses nvmem_device_read() and thus works with any NVMEM device. But because this is now not a device anymore, the compatible string will have to be changed so the device will still be probed: compatible = "u-boot,env"; to compatible = "u-boot,env", "nvmem-cells"; "nvmem-cells" will tell the mtd layer to register a nvmem_device(). "u-boot,env" will tell the NVMEM that it should apply the u-boot environment layout to the NVMEM device.
That's fishy but maybe we can ignore backward compatibility at point. Still you need to update DT binding.
