From: swarren@wwwdotorg•org (Stephen Warren)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 2/5] ARM: tegra20: clocks: add CPU low-power function into tegra_cpu_car_ops
Date: Mon, 03 Dec 2012 11:20:26 -0700 [thread overview]
Message-ID: <50BCED6A.7000702@wwwdotorg.org> (raw)
In-Reply-To: <1354503607-13707-3-git-send-email-josephl@nvidia.com>
On 12/02/2012 08:00 PM, Joseph Lo wrote:
> Add suspend, resume and rail_off_ready API into tegra_cpu_car_ops. These
> functions were used for CPU powered-down state maintenance.
> diff --git a/arch/arm/mach-tegra/tegra20_clocks.c b/arch/arm/mach-tegra/tegra20_clocks.c
> +static bool tegra20_cpu_rail_off_ready(void)
> + if ((cpu_rst_status & 0x2) != 0x2)
> + return false;
> +
> + return true;
> +}
Perhaps simplify that to:
return cpu_rst_status & 2;
or perhaps if that generates an int->bool performance warning:
return !!(cpu_rst_status & 2);
or:
return (cpu_rst_status >> 1) & 1;
next prev parent reply other threads:[~2012-12-03 18:20 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-03 3:00 [PATCH 0/5] ARM: tegra20: cpuidle: add power-down state Joseph Lo
2012-12-03 3:00 ` [PATCH 1/5] ARM: tegra20: cpuidle: add powered-down state for secondary CPU Joseph Lo
2012-12-03 18:18 ` Stephen Warren
2012-12-04 6:47 ` Joseph Lo
2012-12-03 18:31 ` Stephen Warren
2012-12-04 7:05 ` Joseph Lo
2012-12-05 18:36 ` Stephen Warren
2012-12-03 3:00 ` [PATCH 2/5] ARM: tegra20: clocks: add CPU low-power function into tegra_cpu_car_ops Joseph Lo
2012-12-03 18:20 ` Stephen Warren [this message]
2012-12-04 4:28 ` Joseph Lo
2012-12-04 5:12 ` Prashant Gaikwad
2012-12-04 5:25 ` Joseph Lo
2012-12-05 18:34 ` Stephen Warren
2012-12-03 3:00 ` [PATCH 3/5] ARM: tegra20: flowctrl: add support for cpu_suspend_enter/exit Joseph Lo
2012-12-03 3:00 ` [PATCH 4/5] ARM: tegra20: cpuidle: add powered-down state for CPU0 Joseph Lo
2012-12-03 18:40 ` Stephen Warren
2012-12-04 7:25 ` Joseph Lo
2012-12-03 3:00 ` [PATCH 5/5] ARM: tegra20: cpuidle: apply coupled cpuidle for powered-down mode Joseph Lo
2012-12-03 18:52 ` Stephen Warren
2012-12-04 10:20 ` Joseph Lo
2012-12-04 12:41 ` Peter De Schrijver
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