OMAP3: AM3505/3517 do not have IO wakeup capability
AM3505/3517 doesn't have IO wakeup capability, so we do not need to set
the bit OMAP3430_EN_IO and the bit OMAP3430_EN_IO_CHAIN in the register
PM_WKEN_WKUP when the system enters suspend state.
Tested on AM3517EVM and OMAP3530EVM.
Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index b88737f..fb4994a 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -385,8 +385,9 @@
/* Enable IO-PAD and IO-CHAIN wakeups */
per_next_state = pwrdm_read_next_pwrst(per_pwrdm);
core_next_state = pwrdm_read_next_pwrst(core_pwrdm);
- if (per_next_state < PWRDM_POWER_ON ||
- core_next_state < PWRDM_POWER_ON) {
+ if (omap3_has_io_wakeup() && \
+ (per_next_state < PWRDM_POWER_ON ||
+ core_next_state < PWRDM_POWER_ON)) {
prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, PM_WKEN);
omap3_enable_io_chain();
}
@@ -479,7 +480,7 @@
}
/* Disable IO-PAD and IO-CHAIN wakeup */
- if (core_next_state < PWRDM_POWER_ON) {
+ if (omap3_has_io_wakeup() && core_next_state < PWRDM_POWER_ON) {
prm_clear_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, PM_WKEN);
omap3_disable_io_chain();
}