[PATCH 04/14] OMAP: powerdomain: Arch specific funcs for logic control
Paul Walmsley
paul at pwsan.com
Mon Dec 6 20:25:07 EST 2010
From: Rajendra Nayak <rnayak at ti.com>
Define the following architecture specific funtions for omap2/3/4
.pwrdm_set_logic_retst
.pwrdm_read_logic_pwrst
.pwrdm_read_prev_logic_pwrst
.pwrdm_read_logic_retst
Convert the platform-independent framework to call these functions.
Signed-off-by: Rajendra Nayak <rnayak at ti.com>
Signed-off-by: Paul Walmsley <paul at pwsan.com>
Cc: Benoit Cousson <b-cousson at ti.com>
Cc: Kevin Hilman <khilman at deeprootsystems.com>
---
arch/arm/mach-omap2/powerdomain.c | 51 ++++++++++++----------------
arch/arm/mach-omap2/powerdomain2xxx_3xxx.c | 34 +++++++++++++++++++
arch/arm/mach-omap2/powerdomain44xx.c | 26 ++++++++++++++
3 files changed, 82 insertions(+), 29 deletions(-)
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 0ae1ebf..562a3fe 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -532,7 +532,7 @@ int pwrdm_read_prev_pwrst(struct powerdomain *pwrdm)
*/
int pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst)
{
- u32 v;
+ int ret = -EINVAL;
if (!pwrdm)
return -EINVAL;
@@ -543,17 +543,10 @@ int pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst)
pr_debug("powerdomain: setting next logic powerstate for %s to %0x\n",
pwrdm->name, pwrst);
- /*
- * The register bit names below may not correspond to the
- * actual names of the bits in each powerdomain's register,
- * but the type of value returned is the same for each
- * powerdomain.
- */
- v = pwrst << __ffs(OMAP3430_LOGICL1CACHERETSTATE_MASK);
- prm_rmw_mod_reg_bits(OMAP3430_LOGICL1CACHERETSTATE_MASK, v,
- pwrdm->prcm_offs, pwrstctrl_reg_offs);
+ if (arch_pwrdm && arch_pwrdm->pwrdm_set_logic_retst)
+ ret = arch_pwrdm->pwrdm_set_logic_retst(pwrdm, pwrst);
- return 0;
+ return ret;
}
/**
@@ -696,11 +689,15 @@ int pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, u8 pwrst)
*/
int pwrdm_read_logic_pwrst(struct powerdomain *pwrdm)
{
+ int ret = -EINVAL;
+
if (!pwrdm)
return -EINVAL;
- return prm_read_mod_bits_shift(pwrdm->prcm_offs, pwrstst_reg_offs,
- OMAP3430_LOGICSTATEST_MASK);
+ if (arch_pwrdm && arch_pwrdm->pwrdm_read_logic_pwrst)
+ ret = arch_pwrdm->pwrdm_read_logic_pwrst(pwrdm);
+
+ return ret;
}
/**
@@ -713,17 +710,15 @@ int pwrdm_read_logic_pwrst(struct powerdomain *pwrdm)
*/
int pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm)
{
+ int ret = -EINVAL;
+
if (!pwrdm)
return -EINVAL;
- /*
- * The register bit names below may not correspond to the
- * actual names of the bits in each powerdomain's register,
- * but the type of value returned is the same for each
- * powerdomain.
- */
- return prm_read_mod_bits_shift(pwrdm->prcm_offs, OMAP3430_PM_PREPWSTST,
- OMAP3430_LASTLOGICSTATEENTERED_MASK);
+ if (arch_pwrdm && arch_pwrdm->pwrdm_read_prev_logic_pwrst)
+ ret = arch_pwrdm->pwrdm_read_prev_logic_pwrst(pwrdm);
+
+ return ret;
}
/**
@@ -736,17 +731,15 @@ int pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm)
*/
int pwrdm_read_logic_retst(struct powerdomain *pwrdm)
{
+ int ret = -EINVAL;
+
if (!pwrdm)
return -EINVAL;
- /*
- * The register bit names below may not correspond to the
- * actual names of the bits in each powerdomain's register,
- * but the type of value returned is the same for each
- * powerdomain.
- */
- return prm_read_mod_bits_shift(pwrdm->prcm_offs, pwrstctrl_reg_offs,
- OMAP3430_LOGICSTATEST_MASK);
+ if (arch_pwrdm && arch_pwrdm->pwrdm_read_logic_retst)
+ ret = arch_pwrdm->pwrdm_read_logic_retst(pwrdm);
+
+ return ret;
}
/**
diff --git a/arch/arm/mach-omap2/powerdomain2xxx_3xxx.c b/arch/arm/mach-omap2/powerdomain2xxx_3xxx.c
index a25dd64..b7ea191 100644
--- a/arch/arm/mach-omap2/powerdomain2xxx_3xxx.c
+++ b/arch/arm/mach-omap2/powerdomain2xxx_3xxx.c
@@ -41,6 +41,17 @@ static int omap2_pwrdm_read_pwrst(struct powerdomain *pwrdm)
OMAP2_PM_PWSTST, OMAP_POWERSTATEST_MASK);
}
+static int omap2_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst)
+{
+ u32 v;
+
+ v = pwrst << __ffs(OMAP3430_LOGICL1CACHERETSTATE_MASK);
+ prm_rmw_mod_reg_bits(OMAP3430_LOGICL1CACHERETSTATE_MASK, v,
+ pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL);
+
+ return 0;
+}
+
/* Applicable only for OMAP3. Not supported on OMAP2 */
static int omap3_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm)
{
@@ -48,10 +59,29 @@ static int omap3_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm)
OMAP3430_LASTPOWERSTATEENTERED_MASK);
}
+static int omap3_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm)
+{
+ return prm_read_mod_bits_shift(pwrdm->prcm_offs, OMAP2_PM_PWSTST,
+ OMAP3430_LOGICSTATEST_MASK);
+}
+
+static int omap3_pwrdm_read_logic_retst(struct powerdomain *pwrdm)
+{
+ return prm_read_mod_bits_shift(pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL,
+ OMAP3430_LOGICSTATEST_MASK);
+}
+
+static int omap3_pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm)
+{
+ return prm_read_mod_bits_shift(pwrdm->prcm_offs, OMAP3430_PM_PREPWSTST,
+ OMAP3430_LASTLOGICSTATEENTERED_MASK);
+}
+
struct pwrdm_ops omap2_pwrdm_operations = {
.pwrdm_set_next_pwrst = omap2_pwrdm_set_next_pwrst,
.pwrdm_read_next_pwrst = omap2_pwrdm_read_next_pwrst,
.pwrdm_read_pwrst = omap2_pwrdm_read_pwrst,
+ .pwrdm_set_logic_retst = omap2_pwrdm_set_logic_retst,
};
struct pwrdm_ops omap3_pwrdm_operations = {
@@ -59,4 +89,8 @@ struct pwrdm_ops omap3_pwrdm_operations = {
.pwrdm_read_next_pwrst = omap2_pwrdm_read_next_pwrst,
.pwrdm_read_pwrst = omap2_pwrdm_read_pwrst,
.pwrdm_read_prev_pwrst = omap3_pwrdm_read_prev_pwrst,
+ .pwrdm_set_logic_retst = omap2_pwrdm_set_logic_retst,
+ .pwrdm_read_logic_pwrst = omap3_pwrdm_read_logic_pwrst,
+ .pwrdm_read_logic_retst = omap3_pwrdm_read_logic_retst,
+ .pwrdm_read_prev_logic_pwrst = omap3_pwrdm_read_prev_logic_pwrst,
};
diff --git a/arch/arm/mach-omap2/powerdomain44xx.c b/arch/arm/mach-omap2/powerdomain44xx.c
index 5dc337c..996790a 100644
--- a/arch/arm/mach-omap2/powerdomain44xx.c
+++ b/arch/arm/mach-omap2/powerdomain44xx.c
@@ -47,9 +47,35 @@ static int omap4_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm)
OMAP4430_LASTPOWERSTATEENTERED_MASK);
}
+static int omap4_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst)
+{
+ u32 v;
+
+ v = pwrst << __ffs(OMAP4430_LOGICRETSTATE_MASK);
+ prm_rmw_mod_reg_bits(OMAP4430_LOGICRETSTATE_MASK, v,
+ pwrdm->prcm_offs, OMAP4_PM_PWSTCTRL);
+
+ return 0;
+}
+
+static int omap4_pwrdm_read_logic_pwrst(struct powerdomain *pwrdm)
+{
+ return prm_read_mod_bits_shift(pwrdm->prcm_offs, OMAP4_PM_PWSTST,
+ OMAP4430_LOGICSTATEST_MASK);
+}
+
+static int omap4_pwrdm_read_logic_retst(struct powerdomain *pwrdm)
+{
+ return prm_read_mod_bits_shift(pwrdm->prcm_offs, OMAP4_PM_PWSTCTRL,
+ OMAP4430_LOGICRETSTATE_MASK);
+}
+
struct pwrdm_ops omap4_pwrdm_operations = {
.pwrdm_set_next_pwrst = omap4_pwrdm_set_next_pwrst,
.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_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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