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>
Sat, 31 Mar 2018 14:44:49 +0000 (15:44 +0100)
commit8db5f2957c99173fb3d78316fcc2fb969a044314
tree8f459c6119f7654dd96d5947947d304bd83fbc73
parent6ec97610cc9ebcb02fb398e9d3ce682f64f4b7ed
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