Re: [PATCH v2 1/2 net-next] net: phy: mscc: add support for CLKOUT ctrl reg for VSC8531 and similar

From: Andrew Lunn
Date: Thu Jul 13 2023 - 16:35:56 EST


> +set_reg:
> + mutex_lock(&phydev->lock);
> + rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_GPIO,
> + VSC8531_CLKOUT_CNTL, mask, set);
> + mutex_unlock(&phydev->lock);

What is this mutex protecting?

Andrew