Document a type attribute used by userspace to discern different types of
NVMEM devices. The implementation is already present, the ABI document is
missing, add it.
Reviewed-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
Signed-off-by: Marek Vasut <marex@xxxxxxx>
---
Cc: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Bartosz Golaszewski <brgl@xxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Cc: linux-i2c@xxxxxxxxxxxxxxx
---
V2: - New patch
V3: - Add RB from Alexandre
- Add trailing full stop to the paragraph
---
Documentation/ABI/stable/sysfs-bus-nvmem | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/Documentation/ABI/stable/sysfs-bus-nvmem b/Documentation/ABI/stable/sysfs-bus-nvmem
index 854bd11d72ac4..3f0a95250aa84 100644
--- a/Documentation/ABI/stable/sysfs-bus-nvmem
+++ b/Documentation/ABI/stable/sysfs-bus-nvmem
@@ -20,3 +20,14 @@ Description:
...
*
0001000
+
+What: /sys/bus/nvmem/devices/.../type
+Date: November 2018
+KernelVersion: 5.0
+Contact: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
+Description:
+ This read-only attribute allows user to read the NVMEM
+ device type. Supported types are "Unknown", "EEPROM",
+ "OTP", "Battery backed", "FRAM".
+ Note: This file is only present if CONFIG_NVMEM_SYSFS
+ is enabled.
--
2.43.0
