Document the specific fault code when 10 bit addresses cannot be
supported. It is used for years, only the documentation slipped through
the cracks.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---

The original RFC was from late 2014...

 Documentation/i2c/fault-codes.rst | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/i2c/fault-codes.rst b/Documentation/i2c/fault-codes.rst
index 80b14e718b52..b0864d1268bd 100644
--- a/Documentation/i2c/fault-codes.rst
+++ b/Documentation/i2c/fault-codes.rst
@@ -39,6 +39,10 @@ Also, codes returned by adapter probe methods follow rules which are
 specific to their host bus (such as PCI, or the platform bus).
 
 
+EAFNOSUPPORT
+	Returned by I2C adapters not supporting 10 bit addresses when
+	they are requested to use such an address.
+
 EAGAIN
 	Returned by I2C adapters when they lose arbitration in master
 	transmit mode:  some other master was transmitting different
-- 
2.35.1

On Sun, Oct 29, 2023 at 08:41:43PM +0100, Wolfram Sang wrote:
> Document the specific fault code when 10 bit addresses cannot be
> supported. It is used for years, only the documentation slipped through
> the cracks.
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>

Applied to for-next, thanks!