realtek: mdio: explain missing RTL838x fail command

RTL838x devices do not have a fail indicator. Add a comment for that.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/23204
Signed-off-by: Robert Marko <robimarko@gmail.com>

diff --git a/target/linux/realtek/files-6.18/drivers/net/mdio/mdio-realtek-otto.c b/target/linux/realtek/files-6.18/drivers/net/mdio/mdio-realtek-otto.c
index d7c06b3f58ea836e6bc4be56814138efc8e8c42b..5e676ed0e30ae840c51c50b89a10cca970795460 100644 (file)
--- a/target/linux/realtek/files-6.18/drivers/net/mdio/mdio-realtek-otto.c
+++ b/target/linux/realtek/files-6.18/drivers/net/mdio/mdio-realtek-otto.c
@@ -54,7 +54,7 @@
 #define RTMDIO_838X_SMI_GLB_CTRL               (0xa100)
 #define RTMDIO_838X_SMI_ACCESS_PHY_CTRL_0      (0xa1b8)
 #define RTMDIO_838X_SMI_ACCESS_PHY_CTRL_1      (0xa1bc)
-#define   RTMDIO_838X_CMD_FAIL                 0
+#define   RTMDIO_838X_CMD_FAIL                 0 /* No hardware support */
 #define   RTMDIO_838X_CMD_READ_C22             0
 #define   RTMDIO_838X_CMD_READ_C45             BIT(1)
 #define   RTMDIO_838X_CMD_WRITE_C22            BIT(2)