net: phy: smsc: add comments for the LAN8742 phy ID mask.

add comments for the LAN8742 phy ID mask in the previous patch.
add one missing tab in the LAN8742 phy ID line.

Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
index 44fa9e00cc50a8eb0d000e8bb59473a6d9a54449..92225d0fc2464edb92ada633931deb1b6f6d09f0 100644 (file)
--- a/drivers/net/phy/smsc.c
+++ b/drivers/net/phy/smsc.c
@@ -484,7 +484,11 @@ static struct phy_driver smsc_phy_driver[] = {
        .suspend        = genphy_suspend,
        .resume         = genphy_resume,
 }, {
-       .phy_id = 0x0007c130,   /* 0x0007c130 and 0x0007c131 */
+       .phy_id         = 0x0007c130,   /* 0x0007c130 and 0x0007c131 */
+       /* This mask (0xfffffff2) is to differentiate from
+        * LAN88xx (phy_id 0x0007c132)
+        * and allows future phy_id revisions.
+        */
        .phy_id_mask    = 0xfffffff2,
        .name           = "Microchip LAN8742",