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

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

arch/arm/mach-omap2/powerdomain.c

+21 −0
Original line number Original line Diff line number Diff line
@@ -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) 
	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, 
	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 *

arch/arm/mach-omap2/powerdomain.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -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);

arch/arm/mach-omap2/voltage.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -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