net/enc28j60: low power mode
Keep enc28j60 chips in low-power mode when they're not in use. At typically 120 mA, these chips run hot even when idle; this low power mode cuts that power usage by a factor of around 100. This version provides a generic routine to poll a register until its masked value equals some value ... e.g. bit set or cleared. It's basically what the previous wait_phy_ready() did, but this version is generalized to support the handshaking needed to enter and exit low power mode. Signed-off-by:David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
Claudio Lanconelli <lanconelli.claudio@eptar.com> Signed-off-by:
Jeff Garzik <jgarzik@redhat.com>
parent
6fd65882
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