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authorRajendra Nayak <rnayak@ti.com>2010-12-22 08:37:28 +0300
committerPaul Walmsley <paul@pwsan.com>2010-12-22 08:37:28 +0300
commit33de32b3ebcb4f7f77f10a1b42493352f00c6a30 (patch)
tree2c42a59ecd2b5251f3a3e36ba5d0f429779bb17c
parent71a488dbcc4acbc9b845491a368b30ecd7484089 (diff)
downloadlinux-33de32b3ebcb4f7f77f10a1b42493352f00c6a30.tar.xz
OMAP4: PM: Do not assume clkdm supports hw transitions
omap_set_pwrdm_state today assumes a clkdm supports hw_auto transitions and hence leaves some which do not support this in sw wkup state preventing low power transitions. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Benoit Cousson <b-cousson@ti.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
-rw-r--r--arch/arm/mach-omap2/pm.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index a2b826cdfbf6..9b1db592759f 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -95,8 +95,7 @@ static void omap2_init_processor_devices(void)
/*
* This sets pwrdm state (other than mpu & core. Currently only ON &
- * RET are supported. Function is assuming that clkdm doesn't have
- * hw_sup mode enabled.
+ * RET are supported.
*/
int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
{
@@ -137,7 +136,10 @@ int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
switch (sleep_switch) {
case FORCEWAKEUP_SWITCH:
- omap2_clkdm_allow_idle(pwrdm->pwrdm_clkdms[0]);
+ if (pwrdm->pwrdm_clkdms[0]->flags & CLKDM_CAN_ENABLE_AUTO)
+ omap2_clkdm_allow_idle(pwrdm->pwrdm_clkdms[0]);
+ else
+ omap2_clkdm_sleep(pwrdm->pwrdm_clkdms[0]);
break;
case LOWPOWERSTATE_SWITCH:
pwrdm_set_lowpwrstchange(pwrdm);