linux-kernel - Re: [PATCH v2 02/15] powerpc/85xx: add sleep and deep sleep support

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Message-ID: <1366761200.5825.18@snotra>
Date:	Tue, 23 Apr 2013 18:53:20 -0500
From:	Scott Wood <scottwood@...escale.com>
To:	Zhao Chenhui <chenhui.zhao@...escale.com>
CC:	<linuxppc-dev@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 02/15] powerpc/85xx: add sleep and deep sleep support

On 04/19/2013 05:47:35 AM, Zhao Chenhui wrote:
>  static int pmc_suspend_enter(suspend_state_t state)
>  {
> -	int ret;
> +	int ret = 0;
> +
> +	switch (state) {
> +#ifdef CONFIG_PPC_85xx
> +	case PM_SUSPEND_MEM:
> +#ifdef CONFIG_SPE
> +		enable_kernel_spe();
> +#endif
> +		enable_kernel_fp();

Why does enable_kernel_spe() need an ifdef but enable_kernel_fp()  
doesn't?

> +	case PM_SUSPEND_STANDBY:
> +#ifdef CONFIG_FSL_SOC_BOOKE
> +		flush_dcache_L1();
> +#endif
> +		setbits32(&pmc_regs->powmgtcsr, POWMGTCSR_SLP);

Only L1, even on e500mc?

-Scott
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