Commit 4b4f62c4 authored by Santosh Shilimkar's avatar Santosh Shilimkar Committed by Paul Walmsley

OMAP4: powerdomain: Add pwrdm_clear_all_prev_pwrst

Like OMAP3, 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 to the OMAP4 powerdomains
implementation to support this.
Signed-off-by: default avatarSantosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: default avatarRajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: clarified commit message]
Signed-off-by: default avatarPaul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Reviewed-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
Tested-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
Tested-by: default avatarSantosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: default avatarRajendra Nayak <rnayak@ti.com>
parent 9b7fc907
......@@ -55,6 +55,14 @@ static int omap4_pwrdm_set_lowpwrstchange(struct powerdomain *pwrdm)
return 0;
}
static int omap4_pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm)
{
prm_rmw_mod_reg_bits(OMAP4430_LASTPOWERSTATEENTERED_MASK,
OMAP4430_LASTPOWERSTATEENTERED_MASK,
pwrdm->prcm_offs, OMAP4_PM_PWSTST);
return 0;
}
static int omap4_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst)
{
u32 v;
......@@ -155,6 +163,7 @@ struct pwrdm_ops omap4_pwrdm_operations = {
.pwrdm_read_pwrst = omap4_pwrdm_read_pwrst,
.pwrdm_read_prev_pwrst = omap4_pwrdm_read_prev_pwrst,
.pwrdm_set_lowpwrstchange = omap4_pwrdm_set_lowpwrstchange,
.pwrdm_clear_all_prev_pwrst = omap4_pwrdm_clear_all_prev_pwrst,
.pwrdm_set_logic_retst = omap4_pwrdm_set_logic_retst,
.pwrdm_read_logic_pwrst = omap4_pwrdm_read_logic_pwrst,
.pwrdm_read_logic_retst = omap4_pwrdm_read_logic_retst,
......
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