For platforms that have multiple boards and hence have multiple EEPROMs for identifying the different boards, it is useful to label the EEPROMs in device-tree so that they can be easily identified. For example, MAC address information is stored in the EEPROM on the processor module for some Jetson platforms which is not only required by the kernel but the bootloader as well. So having a simple way to identify the EEPROM is needed.
Changes since V1: - By default initialise the nvmem_config.id as NVMEM_DEVID_AUTO and not NVMEM_DEVID_NONE - Dropped the 'maxItems' from the dt-binding doc. Jon Hunter (5): misc: eeprom: at24: Initialise AT24 NVMEM ID field dt-bindings: eeprom: at24: Add label property for AT24 misc: eeprom: at24: Support custom device names for AT24 EEPROMs arm64: tegra: Add label properties for EEPROMs arm64: tegra: Populate EEPROMs for Jetson Xavier NX .../devicetree/bindings/eeprom/at24.yaml | 3 +++ .../boot/dts/nvidia/tegra186-p2771-0000.dts | 1 + .../arm64/boot/dts/nvidia/tegra186-p3310.dtsi | 1 + .../arm64/boot/dts/nvidia/tegra194-p2888.dtsi | 1 + .../boot/dts/nvidia/tegra194-p2972-0000.dts | 1 + .../nvidia/tegra194-p3509-0000+p3668-0000.dts | 14 ++++++++++++ .../boot/dts/nvidia/tegra194-p3668-0000.dtsi | 16 ++++++++++++++ .../arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 1 + .../boot/dts/nvidia/tegra210-p2371-2180.dts | 1 + .../boot/dts/nvidia/tegra210-p3450-0000.dts | 2 ++ drivers/misc/eeprom/at24.c | 22 ++++++++++++++++++- 11 files changed, 62 insertions(+), 1 deletion(-) -- 2.25.1
