From: Kevin Hilman <khilman@ti.com>
Date: Fri, 11 May 2012 22:47:17 +0000 (-0700)
Subject: ARM: OMAP3: PM: call pre/post transition per powerdomain
X-Git-Tag: firefly_0821_release~3680^2~2391^2^2~1^2~4
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=58f0829b7186150318c79515f0e0850c5e7a9c89;p=firefly-linux-kernel-4.4.55.git
ARM: OMAP3: PM: call pre/post transition per powerdomain
We only need to call the pre/post transtion methods when we know the
power state is changing. First, split up the pre/post transition
calls to be per-powerdomain, and then make them conditional on whether
the power domain is actually changing states.
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
---
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 0bbbc8c82fd8..dec2d55d7182 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -273,16 +273,21 @@ void omap_sram_idle(void)
per_next_state = pwrdm_read_next_pwrst(per_pwrdm);
core_next_state = pwrdm_read_next_pwrst(core_pwrdm);
- pwrdm_pre_transition(NULL);
+ if (mpu_next_state < PWRDM_POWER_ON) {
+ pwrdm_pre_transition(mpu_pwrdm);
+ pwrdm_pre_transition(neon_pwrdm);
+ }
/* PER */
if (per_next_state < PWRDM_POWER_ON) {
+ pwrdm_pre_transition(per_pwrdm);
per_going_off = (per_next_state == PWRDM_POWER_OFF) ? 1 : 0;
omap2_gpio_prepare_for_idle(per_going_off);
}
/* CORE */
if (core_next_state < PWRDM_POWER_ON) {
+ pwrdm_pre_transition(core_pwrdm);
if (core_next_state == PWRDM_POWER_OFF) {
omap3_core_save_context();
omap3_cm_save_context();
@@ -335,14 +340,20 @@ void omap_sram_idle(void)
omap2_prm_clear_mod_reg_bits(OMAP3430_AUTO_OFF_MASK,
OMAP3430_GR_MOD,
OMAP3_PRM_VOLTCTRL_OFFSET);
+ pwrdm_post_transition(core_pwrdm);
}
omap3_intc_resume_idle();
- pwrdm_post_transition(NULL);
-
/* PER */
- if (per_next_state < PWRDM_POWER_ON)
+ if (per_next_state < PWRDM_POWER_ON) {
omap2_gpio_resume_after_idle();
+ pwrdm_post_transition(per_pwrdm);
+ }
+
+ if (mpu_next_state < PWRDM_POWER_ON) {
+ pwrdm_post_transition(mpu_pwrdm);
+ pwrdm_post_transition(neon_pwrdm);
+ }
clkdm_allow_idle(mpu_pwrdm->pwrdm_clkdms[0]);
}