Commit 048a7034 authored by Kevin Hilman's avatar Kevin Hilman

OMAP2+: powerdomain: add voltage domain lookup during register

When a powerdomain is registered, lookup the voltage domain by name
and keep a pointer to the containing voltagedomain in the powerdomain
structure.

Modeled after similar method between powerdomain and clockdomain layers.
Signed-off-by: default avatarKevin Hilman <khilman@ti.com>
parent 7e1b9405
...@@ -77,6 +77,7 @@ static struct powerdomain *_pwrdm_lookup(const char *name) ...@@ -77,6 +77,7 @@ static struct powerdomain *_pwrdm_lookup(const char *name)
static int _pwrdm_register(struct powerdomain *pwrdm) static int _pwrdm_register(struct powerdomain *pwrdm)
{ {
int i; int i;
struct voltagedomain *voltdm;
if (!pwrdm || !pwrdm->name) if (!pwrdm || !pwrdm->name)
return -EINVAL; return -EINVAL;
...@@ -91,6 +92,14 @@ static int _pwrdm_register(struct powerdomain *pwrdm) ...@@ -91,6 +92,14 @@ static int _pwrdm_register(struct powerdomain *pwrdm)
if (_pwrdm_lookup(pwrdm->name)) if (_pwrdm_lookup(pwrdm->name))
return -EEXIST; return -EEXIST;
voltdm = voltdm_lookup(pwrdm->voltdm.name);
if (!voltdm) {
pr_err("powerdomain: %s: voltagedomain %s does not exist\n",
pwrdm->name, pwrdm->voltdm.name);
return -EINVAL;
}
pwrdm->voltdm.ptr = voltdm;
list_add(&pwrdm->node, &pwrdm_list); list_add(&pwrdm->node, &pwrdm_list);
/* Initialize the powerdomain's state counter */ /* Initialize the powerdomain's state counter */
...@@ -426,6 +435,18 @@ int pwrdm_for_each_clkdm(struct powerdomain *pwrdm, ...@@ -426,6 +435,18 @@ int pwrdm_for_each_clkdm(struct powerdomain *pwrdm,
return ret; return ret;
} }
/**
* pwrdm_get_voltdm - return a ptr to the voltdm that this pwrdm resides in
* @pwrdm: struct powerdomain *
*
* Return a pointer to the struct voltageomain that the specified powerdomain
* @pwrdm exists in.
*/
struct voltagedomain *pwrdm_get_voltdm(struct powerdomain *pwrdm)
{
return pwrdm->voltdm.ptr;
}
/** /**
* pwrdm_get_mem_bank_count - get number of memory banks in this powerdomain * pwrdm_get_mem_bank_count - get number of memory banks in this powerdomain
* @pwrdm: struct powerdomain * * @pwrdm: struct powerdomain *
......
...@@ -183,6 +183,7 @@ int pwrdm_del_clkdm(struct powerdomain *pwrdm, struct clockdomain *clkdm); ...@@ -183,6 +183,7 @@ int pwrdm_del_clkdm(struct powerdomain *pwrdm, struct clockdomain *clkdm);
int pwrdm_for_each_clkdm(struct powerdomain *pwrdm, int pwrdm_for_each_clkdm(struct powerdomain *pwrdm,
int (*fn)(struct powerdomain *pwrdm, int (*fn)(struct powerdomain *pwrdm,
struct clockdomain *clkdm)); struct clockdomain *clkdm));
struct voltagedomain *pwrdm_get_voltdm(struct powerdomain *pwrdm);
int pwrdm_get_mem_bank_count(struct powerdomain *pwrdm); int pwrdm_get_mem_bank_count(struct powerdomain *pwrdm);
......
...@@ -186,4 +186,5 @@ extern void omap44xx_voltagedomains_init(void); ...@@ -186,4 +186,5 @@ extern void omap44xx_voltagedomains_init(void);
struct voltagedomain *voltdm_lookup(const char *name); struct voltagedomain *voltdm_lookup(const char *name);
void voltdm_init(struct voltagedomain **voltdm_list); void voltdm_init(struct voltagedomain **voltdm_list);
int voltdm_add_pwrdm(struct voltagedomain *voltdm, struct powerdomain *pwrdm);
#endif #endif
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