EDIT: Further to comments, I checked Calvin's Commentary on Isaiah. The only bit Calvin wrote on Isa. 11:1-3 that is connected to your question is:
“Hence we infer that this prediction applies solely to the person of Christ; … The Spirit of the Lord We must keep in view what I mentioned a little ago, that this refers to Christ's human nature; because he could not be enriched with the gift and grace of the Father, except so far as he became man. Besides, as he came down to us, so he received the gifts of the Spirit, that he might bestow them upon us. And this is the anointing from which he receives the name of Christ, which he imparts to us; for why are we called Christians, but because he admits us to his fellowship, by distributing to us out of his fullness according to the measure (Ephesians 4:7) of undeserved liberality? And undoubtedly this passage does not so much as teach us what Christ is in himself, as what he received from the Father, that he might enrich us with his wealth…”
The Prophet does not here enumerate all the gifts of the Holy Spirit, as some have thought. Out of this passage the Papists have foolishly and ignorantly drawn their sevenfold grace, and some of the ancients fell into a similar blunder. He enumerates only six kinds; but they have added a seventh out of their own head. But as one error commonly follows another, they have chosen to limit the gifts of the Spirit to the number seven, although in other parts of Scripture (John 14:17; 2 Timothy 1:7) he receives numerous and lofty commendations drawn from the variety of the effects which he produces. Besides, it is very evident that it is through the kindness of Christ (Galatians 5:22, 23) that we are partakers of other blessings than those which are here enumerated, of meekness, chastity, sobriety, truth, and holiness; for these proceed from none else than from Christ. He does not mention, therefore, all the gifts which were bestowed on Christ, for that was unnecessary; but only shows briefly that Christ came not empty-handed, but well supplied with all gifts, that he might enrich us with them.
If these things had not been added, we might have supposed, as the Jews commonly do, that the restoration of this kingdom was carnal, and might have imagined that Christ was poor and destitute of all blessings. Accordingly, the Prophet afterwards shows that the gifts of the Spirit are laid up in him, first, generally, and next, particularly; that we may go to him to obtain whatever we want. He will enlighten us with the light of wisdom and understanding, will impart to us counsel in difficulties, will make us strong and courageous in battles, will bestow on us the true fear of God, that is, godliness, and, in a word, will communicate to us all that is necessary for our life and salvation. All gifts are here included by the Prophet, so that it is excessively foolish to attempt to conceal those which do not belong to the present enumeration."
https://biblehub.com/commentaries/calvin/isaiah/11.htm