diff --git a/Documentation/ABI/testing/sysfs-nvmem-cells b/Documentation/ABI/testing/sysfs-nvmem-cells
new file mode 100644
index 000000000000..7af70adf3690
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-nvmem-cells
@@ -0,0 +1,21 @@
+What:		/sys/bus/nvmem/devices/.../cells/<cell-name>
+Date:		May 2023
+KernelVersion:	6.5
+Contact:	Miquel Raynal <miquel.raynal@bootlin.com>
+Description:
+		The "cells" folder contains one file per cell exposed by the
+		NVMEM device. The name of the file is: <name>@<where>, with
+		<name> being the cell name and <where> its location in the NVMEM
+		device, in hexadecimal (without the '0x' prefix, to mimic device
+		tree node names). The length of the file is the size of the cell
+		(when known). The content of the file is the binary content of
+		the cell (may sometimes be ASCII, likely without trailing
+		character).
+		Note: This file is only present if CONFIG_NVMEM_SYSFS
+		is enabled.
+
+		Example::
+
+		  hexdump -C /sys/bus/nvmem/devices/1-00563/cells/product-name@d
+		  00000000  54 4e 34 38 4d 2d 50 2d  44 4e         |TN48M-P-DN|
+		  0000000a