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| author | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2010-12-21 20:01:19 -0700 |
|---|---|---|
| committer | Paul Walmsley <paul@pwsan.com> | 2010-12-21 20:01:19 -0700 |
| commit | 4b4f62c4672805466652a785070cc2ac8a398e16 (patch) | |
| tree | fc4fd085d82d8d4898b6c351c8e3dfed3a1ed138 | |
| parent | 9b7fc907d9378f86eb6b823bbe84ec9ed584b091 (diff) | |
| download | linux-4b4f62c4672805466652a785070cc2ac8a398e16.tar.bz2 | |
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: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: clarified commit message]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Rajendra Nayak <rnayak@ti.com>
| -rw-r--r-- | arch/arm/mach-omap2/powerdomain44xx.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/powerdomain44xx.c b/arch/arm/mach-omap2/powerdomain44xx.c index 123a25f3b96f..2903c7cb2d5e 100644 --- a/arch/arm/mach-omap2/powerdomain44xx.c +++ b/arch/arm/mach-omap2/powerdomain44xx.c @@ -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, |