From dd6fe9a927eaaa98f70b44464a810e6e4d33318c Mon Sep 17 00:00:00 2001 From: Joseph Lo Date: Wed, 3 Jul 2013 17:50:43 +0800 Subject: [PATCH] ARM: tegra: flowctrl: add support for cpu_suspend_enter/exit The flow controller can help CPU to go into suspend mode (powered-down state). When CPU goes into powered-down state, it needs some careful settings before getting into and after leaving. The enter and exit functions do that by configuring appropriate mode for flow controller. For Tegra114, the setting is compatible with Tegra30. Signed-off-by: Joseph Lo Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/flowctrl.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-tegra/flowctrl.c b/arch/arm/mach-tegra/flowctrl.c index b477ef3..5348543 100644 --- a/arch/arm/mach-tegra/flowctrl.c +++ b/arch/arm/mach-tegra/flowctrl.c @@ -86,6 +86,7 @@ void flowctrl_cpu_suspend_enter(unsigned int cpuid) reg |= TEGRA20_FLOW_CTRL_CSR_WFE_CPU0 << cpuid; break; case TEGRA30: + case TEGRA114: /* clear wfe bitmap */ reg &= ~TEGRA30_FLOW_CTRL_CSR_WFE_BITMAP; /* clear wfi bitmap */ @@ -123,6 +124,7 @@ void flowctrl_cpu_suspend_exit(unsigned int cpuid) reg &= ~TEGRA20_FLOW_CTRL_CSR_WFI_BITMAP; break; case TEGRA30: + case TEGRA114: /* clear wfe bitmap */ reg &= ~TEGRA30_FLOW_CTRL_CSR_WFE_BITMAP; /* clear wfi bitmap */ -- 2.7.4