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[ARM] OMAP3: PM: Make sure clk_disable_unused() order is correct

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Current implementation will disable clocks in the order defined in clock34xx.h,
at least DPLL4_M2X2 will hang in certain cases (and prevent retention / off)
if clocks are not disabled in correct order. This patch makes sure the parent
clocks will be active when disabling a clock.

linux-omap source commit is 672680063420ef8c8c4e7271984bb9cc08171d29.

Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Tero Kristo 2009-01-28 12:27:45 -07:00 committed by Russell King
parent 0eafd4725c
commit 8463e20a58
1 changed files with 5 additions and 1 deletions
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6
arch/arm/mach-omap2/clock.c
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@ -1000,6 +1000,10 @@ void omap2_clk_disable_unused(struct clk *clk)
return;
printk(KERN_INFO "Disabling unused clock \"%s\"\n", clk->name);
_omap2_clk_disable(clk);
if (cpu_is_omap34xx()) {
omap2_clk_enable(clk);
omap2_clk_disable(clk);
} else
_omap2_clk_disable(clk);
}
#endif