Hello Wenyou,
On Tue, Jan 20, 2015 at 04:17:00PM +0800, Wenyou Yang wrote:
>
> diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
> index 691e6db..a1010f0 100644
> --- a/arch/arm/mach-at91/pm.c
> +++ b/arch/arm/mach-at91/pm.c
> @@ -145,62 +145,51 @@ extern void at91_slow_clock(void __iomem *pmc, void
> __iomem *ramc0,
> void __iomem *ramc1, int memctrl);
> extern u32 at91_slow_clock_sz;
>
> +static void at91_pm_suspend(suspend_state_t state)
> +{
(...)
> + slow_clock(at91_pmc_base, at91_ramc_base[0],
> + at91_ramc_base[1], pm_data);
> +}
> - if (slow_clock) {
> - slow_clock(at91_pmc_base, at91_ramc_base[0],
> - at91_ramc_base[1],
> - at91_pm_data.memctrl);
(...)
> + at91_pm_suspend(state);
By doing that you removed the condition "if (slow_clock)".
But slow_clock can still be NULL, see commit d2e4679, there are multiple
reasons which ends up with a NULL slow_clock.
Sylvain
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