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| author | Tero Kristo <tero.kristo@nokia.com> | 2009-01-28 12:27:45 -0700 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-02-08 17:50:40 +0000 |
| commit | 8463e20a58e8b8c88fab948b8610504cbf604294 (patch) | |
| tree | f104ac8fefe110116b66af2730145e9e2b8658cb /arch/arm/mach-omap2/clock.c | |
| parent | 0eafd4725cf5d828e76e474b8991a228bbdd3f2b (diff) | |
| download | op-kernel-dev-8463e20a58e8b8c88fab948b8610504cbf604294.zip op-kernel-dev-8463e20a58e8b8c88fab948b8610504cbf604294.tar.gz | |
[ARM] OMAP3: PM: Make sure clk_disable_unused() order is correct
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>
Diffstat (limited to 'arch/arm/mach-omap2/clock.c')
| -rw-r--r-- | arch/arm/mach-omap2/clock.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index 18fddb6..478ca66 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -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 |
