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ARM: OMAP2+: PM: Remove bogus fiq_[enable/disable] tuple

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On OMAP platform, FIQ is reserved for secure environment only. If at all
the FIQ needs to be disabled, it involves going through security
API call. Hence the local_fiq_[enable/disable]() in the OMAP code is bogus.
On GP devices too, the fiq is disabled for non-secure software.

So just get rid of it.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
This commit is contained in:
Santosh Shilimkar 2013-02-11 19:29:45 +05:30
parent f98d5fe807
commit 6b85638b83
5 changed files with 4 additions and 30 deletions
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3
arch/arm/mach-omap2/cpuidle34xx.c
View File

@ -107,8 +107,6 @@ static int __omap3_enter_idle(struct cpuidle_device *dev,
{
struct omap3_idle_statedata *cx = &omap3_idle_data[index];
local_fiq_disable();
if (omap_irq_pending() || need_resched())
goto return_sleep_time;
@ -143,7 +141,6 @@ static int __omap3_enter_idle(struct cpuidle_device *dev,
clkdm_allow_idle(mpu_pd->pwrdm_clkdms[0]);
return_sleep_time:
local_fiq_enable();
return index;
}

7
arch/arm/mach-omap2/cpuidle44xx.c
View File

@ -70,10 +70,7 @@ static int omap4_enter_idle_simple(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
local_fiq_disable();
omap_do_wfi();
local_fiq_enable();
return index;
}
@ -84,8 +81,6 @@ static int omap4_enter_idle_coupled(struct cpuidle_device *dev,
struct omap4_idle_statedata *cx = &omap4_idle_data[index];
int cpu_id = smp_processor_id();
local_fiq_disable();
/*
* CPU0 has to wait and stay ON until CPU1 is OFF state.
* This is necessary to honour hardware recommondation
@ -158,8 +153,6 @@ fail:
cpuidle_coupled_parallel_barrier(dev, &abort_barrier);
cpu_done[dev->cpu] = false;
local_fiq_enable();
return index;
}

11
arch/arm/mach-omap2/pm24xx.c
View File

@ -200,22 +200,17 @@ static int omap2_can_sleep(void)
static void omap2_pm_idle(void)
{
local_fiq_disable();
if (!omap2_can_sleep()) {
if (omap_irq_pending())
goto out;
return;
omap2_enter_mpu_retention();
goto out;
return;
}
if (omap_irq_pending())
goto out;
return;
omap2_enter_full_retention();
out:
local_fiq_enable();
}
static void __init prcm_setup_regs(void)

9
arch/arm/mach-omap2/pm34xx.c
View File

@ -346,19 +346,14 @@ void omap_sram_idle(void)
static void omap3_pm_idle(void)
{
local_fiq_disable();
if (omap_irq_pending())
goto out;
return;
trace_cpu_idle(1, smp_processor_id());
omap_sram_idle();
trace_cpu_idle(PWR_EVENT_EXIT, smp_processor_id());
out:
local_fiq_enable();
}
#ifdef CONFIG_SUSPEND
@ -757,14 +752,12 @@ int __init omap3_pm_init(void)
pr_err("Memory allocation failed when allocating for secure sram context\n");
local_irq_disable();
local_fiq_disable();
omap_dma_global_context_save();
omap3_save_secure_ram_context();
omap_dma_global_context_restore();
local_irq_enable();
local_fiq_enable();
}
omap3_save_scratchpad_contents();

4
arch/arm/mach-omap2/pm44xx.c
View File

@ -131,11 +131,7 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused)
*/
static void omap_default_idle(void)
{
local_fiq_disable();
omap_do_wfi();
local_fiq_enable();
}
/**