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

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

arch/arm/mach-omap2/powerdomain44xx.c

+9 −0
Original line number Diff line number Diff line
@@ -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,