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From: rnayak@ti.com (Rajendra Nayak)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] ARM: OMAP3: PM: remove superfluous calls to pwrdm_clear_all_prev_pwrst()
Date: Tue, 31 Jan 2012 09:23:04 +0530	[thread overview]
Message-ID: <4F2765A0.1020804@ti.com> (raw)
In-Reply-To: <878vkopw2o.fsf@ti.com>

On Tuesday 31 January 2012 05:44 AM, Kevin Hilman wrote:
> Paul Walmsley<paul@pwsan.com>  writes:
>
>> Remove some superfluous calls to pwrdm_clear_all_prev_pwrst().
>> pwrdm_pre_transition(), which appears a few lines after these calls,
>> invokes pwrdm_clear_all_prev_pwrst() on each powerdomain -- there's no
>> need to do it twice.
>
> It looks like these two for OMAP4 are surpurfluous since the immediately
> follow a call to pwrdm_pre_transition() as well.
>
> Santosh/Rajendra, please confirm/ack.

I agree, looks like they should be removed.
Acked-by: Rajendra Nayak <rnayak@ti.com>

>
> Kevin
>
>
> diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
> index 1d5d010..bbabe1d 100644
> --- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
> +++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
> @@ -263,12 +263,10 @@ int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state)
>   	 * In MPUSS OSWR or device OFF, interrupt controller  contest is lost.
>   	 */
>   	mpuss_clear_prev_logic_pwrst();
> -	pwrdm_clear_all_prev_pwrst(mpuss_pd);
>   	if ((pwrdm_read_next_pwrst(mpuss_pd) == PWRDM_POWER_RET)&&
>   		(pwrdm_read_logic_retst(mpuss_pd) == PWRDM_POWER_OFF))
>   		save_state = 2;
>
> -	clear_cpu_prev_pwrst(cpu);
>   	cpu_clear_prev_logic_pwrst(cpu);
>   	set_cpu_next_pwrst(cpu, power_state);
>   	set_cpu_wakeup_addr(cpu, virt_to_phys(omap4_cpu_resume));

  reply	other threads:[~2012-01-31  3:53 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-30  9:43 [PATCH 0/2] ARM: OMAP2+: PM: miscellaneous powerdomain-related improvements Paul Walmsley
2012-01-30  9:43 ` [PATCH 1/2] ARM: OMAP3: PM: remove superfluous calls to pwrdm_clear_all_prev_pwrst() Paul Walmsley
2012-01-30 10:54   ` Shilimkar, Santosh
2012-01-31  0:14   ` Kevin Hilman
2012-01-31  3:53     ` Rajendra Nayak [this message]
2012-01-31  6:57     ` Shilimkar, Santosh
2012-01-31  7:15       ` Paul Walmsley
2012-01-31  7:23         ` Shilimkar, Santosh
2012-01-31  7:27           ` Paul Walmsley
2012-01-31  7:34             ` Shilimkar, Santosh
2012-01-31  7:49               ` Paul Walmsley
2012-01-31  8:37                 ` Shilimkar, Santosh
2012-01-31 17:29     ` Kevin Hilman
2012-02-01 19:27       ` Paul Walmsley
2012-02-02  7:13         ` Shilimkar, Santosh
2012-02-02  8:33           ` Paul Walmsley
2012-02-02  8:59             ` Shilimkar, Santosh
2012-02-02 10:05               ` Paul Walmsley
2012-02-02 10:17                 ` Shilimkar, Santosh
2012-02-02 15:24                   ` Shilimkar, Santosh
2012-02-02 19:59                     ` Paul Walmsley
2012-02-02 18:14         ` Kevin Hilman
2012-01-30  9:43 ` [PATCH 2/2] ARM: OMAP2+: PM: clean up omap_set_pwrdm_state() Paul Walmsley
2012-01-30 12:17   ` Shilimkar, Santosh
2012-01-31  3:46   ` Rajendra Nayak
2012-01-30 21:27 ` [PATCH 0/2] ARM: OMAP2+: PM: miscellaneous powerdomain-related improvements Kevin Hilman
2012-01-31  7:21   ` Tero Kristo
2012-02-01 13:55   ` Tero Kristo

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