From: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
OMAP4430 ES2 has additional bitfields in PWRSTST register which help
identify the previous power state entered by the powerdomain.
Add pwrdm_clear_all_prev_pwrst api to support this.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
Signed-off-by: Rajendra Nayak <rnayak@xxxxxx>
Cc: Paul Walmsley <paul@xxxxxxxxx>
Cc: Benoit Cousson <b-cousson@xxxxxx>
Cc: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-omap2/powerdomains44xx.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/powerdomains44xx.c b/arch/arm/mach-omap2/powerdomains44xx.c
index 79be2cd..0414e6a 100644
--- a/arch/arm/mach-omap2/powerdomains44xx.c
+++ b/arch/arm/mach-omap2/powerdomains44xx.c
@@ -45,6 +45,14 @@ static int omap4_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm)
OMAP4430_LASTPOWERSTATEENTERED_MASK);
}
+static int omap4_pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm)
+{
+ prm_rmw_mod_reg_bits(OMAP4430_LASTPOWERSTATEENTERED_MASK,
+ 0x3 << OMAP4430_LASTPOWERSTATEENTERED_SHIFT,
+ pwrdm->prcm_offs, OMAP4_PM_PWSTST);
+ return 0;
+}
+
static int omap4_pwrdm_set_lowpwrstchange(struct powerdomain *pwrdm)
{
prm_rmw_mod_reg_bits(OMAP4430_LOWPOWERSTATECHANGE_MASK,
@@ -154,6 +162,7 @@ struct pwrdm_functions omap4_pwrdm_functions = {
.pwrdm_read_next_pwrst = omap4_pwrdm_read_next_pwrst,
.pwrdm_read_pwrst = omap4_pwrdm_read_pwrst,
.pwrdm_read_prev_pwrst = omap4_pwrdm_read_prev_pwrst,
+ .pwrdm_clear_all_prev_pwrst = omap4_pwrdm_clear_all_prev_pwrst,
.pwrdm_set_lowpwrstchange = omap4_pwrdm_set_lowpwrstchange,
.pwrdm_set_logic_retst = omap4_pwrdm_set_logic_retst,
.pwrdm_read_logic_pwrst = omap4_pwrdm_read_logic_pwrst,
--
1.7.0.4
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