clk: bcm2835: Mark GPIO clocks enabled at boot as critical.
authorEric Anholt <eric@anholt.net>
Tue, 10 May 2016 00:28:18 +0000 (17:28 -0700)
committerRaspbian kernel package updater <root@raspbian.org>
Thu, 15 Feb 2018 17:28:07 +0000 (17:28 +0000)
commite8bcd73667b8d139a09bf1ee1255430cad5d6077
treea256065b8dfb29e1cc913ef12f48045b506513e9
parent1a08c76a304714beb90075890fddddd6dda64eb1
clk: bcm2835: Mark GPIO clocks enabled at boot as critical.

These divide off of PLLD_PER and are used for the ethernet and wifi
PHYs source PLLs.  Neither of them is currently represented by a phy
device that would grab the clock for us.

This keeps other drivers from killing the networking PHYs when they
disable their own clocks and trigger PLLD_PER's refcount going to 0.

v2: Skip marking as critical if they aren't on at boot.

Signed-off-by: Eric Anholt <eric@anholt.net>
drivers/clk/bcm/clk-bcm2835.c