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    Subject[PATCH E 06/14] PM: OMAP3: Make sure clk_disable_unused() order is correct
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    From: Tero Kristo <tero.kristo@nokia.com>

    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>
    ---
    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 9c62ada..d4d2e7b 100644
    --- a/arch/arm/mach-omap2/clock.c
    +++ b/arch/arm/mach-omap2/clock.c
    @@ -1078,6 +1078,10 @@ 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



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