AcoSail/kernel_optimize_test
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OMAP3: PM: Use pwrdm_set_next_pwrst instead of set_pwrdm_state in idle loop

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It is more efficient to use pwrdm_set_next_pwrst for mpu, core and neon
instead of set_pwrdm_state in idle loop. It is anyway known that those are
active in idle loop. So no need to use set_pwrdm_state.

Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Jouni Hogander 2008-10-28 10:59:05 +02:00 committed by Kevin Hilman
parent 8e431edb60
commit 7139178e9b
2 changed files with 3 additions and 3 deletions
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4
arch/arm/mach-omap2/cpuidle34xx.c
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@ -110,8 +110,8 @@ static int omap3_enter_idle(struct cpuidle_device *dev,
core_state = PWRDM_POWER_RET;
}
set_pwrdm_state(mpu_pd, mpu_state);
set_pwrdm_state(core_pd, core_state);
pwrdm_set_next_pwrst(mpu_pd, mpu_state);
pwrdm_set_next_pwrst(core_pd, core_state);
if (omap_irq_pending())
goto return_sleep_time;

2
arch/arm/mach-omap2/pm34xx.c
View File

@ -359,7 +359,7 @@ void omap_sram_idle(void)
/* NEON control */
if (pwrdm_read_pwrst(neon_pwrdm) == PWRDM_POWER_ON)
set_pwrdm_state(neon_pwrdm, mpu_next_state);
pwrdm_set_next_pwrst(neon_pwrdm, mpu_next_state);
/* PER */
per_next_state = pwrdm_read_next_pwrst(per_pwrdm);