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[6/7] ARM: OMAP4+: PM: use only valid low power state for suspend

Message ID 1408715373-25791-7-git-send-email-nm@ti.com
State Accepted
Commit bd7593c69af8f610567fd6b105c440cfe9da7661
Headers show

Commit Message

Nishanth Menon Aug. 22, 2014, 1:49 p.m. UTC 
We are using power domain state as RET and logic state as OFF. This
state is OSWR. This may not always be supported on ALL power domains. In
fact, on certain power domains, this might result in a hang on certain
platforms. Instead, depend on powerdomain data to provide accurate
information about the supported powerdomain states and use the
appropriate function to query and use it as part of suspend path.

Signed-off-by: Nishanth Menon <nm@ti.com>
---
 arch/arm/mach-omap2/pm44xx.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
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Patch

diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c
index b377b03..0bfce38 100644
--- a/arch/arm/mach-omap2/pm44xx.c
+++ b/arch/arm/mach-omap2/pm44xx.c
@@ -121,8 +121,10 @@  static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused)
 		return -ENOMEM;
 
 	pwrst->pwrdm = pwrdm;
-	pwrst->next_state = PWRDM_POWER_RET;
-	pwrst->next_logic_state = PWRDM_POWER_OFF;
+	pwrst->next_state = pwrdm_get_valid_lp_state(pwrdm, false,
+						     PWRDM_POWER_RET);
+	pwrst->next_logic_state = pwrdm_get_valid_lp_state(pwrdm, true,
+							   PWRDM_POWER_OFF);
 
 	list_add(&pwrst->node, &pwrst_list);