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authorstanley.miao <stanley.miao@windriver.com>2010-08-02 14:21:40 +0300
committerTony Lindgren <tony@atomide.com>2010-08-02 14:21:40 +0300
commitad0c63f1d623ea9d3e0c0521d5ce9cd522c4e1f0 (patch)
treee1e2a03ab651b7d21b6753af91f1a08c77af542a /arch/arm/mach-omap2/pm34xx.c
parent72a1179ed41e0fc6bd5eb58e02e8d230eba10e24 (diff)
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>
Diffstat (limited to 'arch/arm/mach-omap2/pm34xx.c')
-rw-r--r--arch/arm/mach-omap2/pm34xx.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index b88737fd6cf..fb4994ad622 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -385,8 +385,9 @@ void omap_sram_idle(void)
/* 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 @@ void omap_sram_idle(void)
}
/* 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();
}