OMAP: powerdomain: Arch specific funcs for logic control

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@ti.com>
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>

diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 0ae1ebf..562a3fe 100644 (file)
--- 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 (file)
--- 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 (file)
--- 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,
 };