99a81706526fb167029a940ef1f7bfbe882abd3e - SHIFTPHONES/mainline/linux

commit	99a81706526fb167029a940ef1f7bfbe882abd3e	[log] [tgz]
author	Alexandre Belloni <alexandre.belloni@free-electrons.com>	Wed Sep 16 23:47:39 2015 +0200
committer	Alexandre Belloni <alexandre.belloni@free-electrons.com>	Wed Feb 17 17:52:59 2016 +0100
tree	f35afa9e90b6a0825bf3f527160482fda286e91c
parent	1bdf02326b71eae7e9b4b335b881856aaf9d1af6 [diff]

clk: at91: remove IRQ handling and use polling

The AT91 clock drivers make use of IRQs to avoid polling when waiting for
some clocks to be enabled. Unfortunately, this leads to a crash when those
IRQs are threaded (which happens when using preempt-rt) because they are
registered before thread creation is possible.

Use polling on those clocks instead to avoid the problem.

Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

drivers/clk/at91/clk-main.c[diff]
drivers/clk/at91/clk-master.c[diff]
drivers/clk/at91/clk-pll.c[diff]
drivers/clk/at91/clk-system.c[diff]
drivers/clk/at91/clk-utmi.c[diff]
drivers/clk/at91/pmc.c[diff]
drivers/clk/at91/pmc.h[diff]

7 files changed

tree: f35afa9e90b6a0825bf3f527160482fda286e91c