+	/* Cache PLCA settings for later use. These values must be restored when
+	 * the PHY wakes up from the low-power sleep state, as all configured
+	 * settings are lost.
+	 */

Does the standard define that this configuration is lost in low power
mode? If the standard says this, then fine. But if not, it should be
the PHY driver which saves its state during suspend, and restores it
during resume.

    Andrew