From: Vaibhav Bedia <vaibhav.bedia@xxxxxx>
"65aa94b ARM: OMAP4: clockdomain/CM code: Update supported transition modes"
removed SW_SLEEP mode for clockdomains on OMAP4 class of devices. Not
having SW_SLEEP mode works fine for OMAP4/5 devices but it gets in the
way of reuse for other devices like AM43x which have the same hardware
but where most of clockdomains support only SW_SLEEP/SW_WKUP modes.
This also can help make AM335x (which has custom functions) reuse
OMAP4 PRM/CM functions.
While here also fixup a trivial typo in the comment.
[afzal@xxxxxx: Alter message to refer to AM43x instead of AM335x, this
was pulled in from series that reuses OMAP4 PRM/CM for AM335x, which
as of now is not being followed upon]
Signed-off-by: Vaibhav Bedia <vaibhav.bedia@xxxxxx>
Signed-off-by: Afzal Mohammed <afzal@xxxxxx>
---
arch/arm/mach-omap2/cminst44xx.c | 20 +++++++++++++++++---
1 file changed, 17 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c
index f0290f5..35051fd 100644
--- a/arch/arm/mach-omap2/cminst44xx.c
+++ b/arch/arm/mach-omap2/cminst44xx.c
@@ -237,7 +237,7 @@ void omap4_cminst_clkdm_disable_hwsup(u8 part, s16 inst, u16 cdoffs)
}
/**
- * omap4_cminst_clkdm_force_sleep - try to take a clockdomain out of idle
+ * omap4_cminst_clkdm_force_wakeup - try to take a clockdomain out of idle
* @part: PRCM partition ID that the clockdomain registers exist in
* @inst: CM instance register offset (*_INST macro)
* @cdoffs: Clockdomain register offset (*_CDOFFS macro)
@@ -250,6 +250,20 @@ void omap4_cminst_clkdm_force_wakeup(u8 part, s16 inst, u16 cdoffs)
_clktrctrl_write(OMAP34XX_CLKSTCTRL_FORCE_WAKEUP, part, inst, cdoffs);
}
+/**
+ * omap4_cminst_clkdm_force_sleep - try to put a clockdomain to idle
+ * @part: PRCM partition ID that the clockdomain registers exist in
+ * @inst: CM instance register offset (*_INST macro)
+ * @cdoffs: Clockdomain register offset (*_CDOFFS macro)
+ *
+ * Put a clockdomain referred to by (@part, @inst, @cdoffs) to idle,
+ * forcing it to sleep. No return value.
+ */
+void omap4_cminst_clkdm_force_sleep(u8 part, s16 inst, u16 cdoffs)
+{
+ _clktrctrl_write(OMAP34XX_CLKSTCTRL_FORCE_SLEEP, part, inst, cdoffs);
+}
+
/*
*
*/
@@ -404,8 +418,8 @@ static int omap4_clkdm_clear_all_wkup_sleep_deps(struct clockdomain *clkdm)
static int omap4_clkdm_sleep(struct clockdomain *clkdm)
{
- omap4_cminst_clkdm_enable_hwsup(clkdm->prcm_partition,
- clkdm->cm_inst, clkdm->clkdm_offs);
+ omap4_cminst_clkdm_force_sleep(clkdm->prcm_partition,
+ clkdm->cm_inst, clkdm->clkdm_offs);
return 0;
}
--
1.7.9.5
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