Hi
On Tue, 16 Nov 2010, Rajendra Nayak wrote:
> From: Santosh Shilimkar <santosh.shilim...@ti.com>
>
> 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.
OMAP3 has these also. Please add a similar function for OMAP3.
> Signed-off-by: Santosh Shilimkar <santosh.shilim...@ti.com>
> Signed-off-by: Rajendra Nayak <rna...@ti.com>
> Cc: Paul Walmsley <p...@pwsan.com>
> Cc: Benoit Cousson <b-cous...@ti.com>
> Cc: Kevin Hilman <khil...@deeprootsystems.com>
> ---
> 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,
Please just use OMAP4430_LASTPOWERSTATEENTERED_MASK here again rather
than 0x3 << OMAP4430_LASTPOWERSTATEENTERED_SHIFT. This avoids introducing
a magic constant here.
> + 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
>
- Paul
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