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arm64: allwinner: axp81x: Add support for regnode_status

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This method is used to know if a regulator is enabled or not.

Sponsored by:	Diablotin Systems
Differential Revision:	https://reviews.freebsd.org/D30290

(cherry picked from commit 182717da88)
This commit is contained in:
Emmanuel Vadot 2021-05-16 16:14:47 +02:00
parent ac90d80771
commit ee2a263974
1 changed files with 17 additions and 0 deletions
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17
sys/arm/allwinner/axp81x.c
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@ -850,6 +850,22 @@ axp8xx_regnode_voltage_to_reg(struct axp8xx_reg_sc *sc, int min_uvolt,
return (0);
}
static int
axp8xx_regnode_status(struct regnode *regnode, int *status)
{
struct axp8xx_reg_sc *sc;
uint8_t val;
sc = regnode_get_softc(regnode);
*status = 0;
axp8xx_read(sc->base_dev, sc->def->enable_reg, &val, 1);
if (val & sc->def->enable_mask)
*status = REGULATOR_STATUS_ENABLED;
return (0);
}
static int
axp8xx_regnode_set_voltage(struct regnode *regnode, int min_uvolt,
int max_uvolt, int *udelay)
@ -899,6 +915,7 @@ static regnode_method_t axp8xx_regnode_methods[] = {
/* Regulator interface */
REGNODEMETHOD(regnode_init, axp8xx_regnode_init),
REGNODEMETHOD(regnode_enable, axp8xx_regnode_enable),
REGNODEMETHOD(regnode_status, axp8xx_regnode_status),
REGNODEMETHOD(regnode_set_voltage, axp8xx_regnode_set_voltage),
REGNODEMETHOD(regnode_get_voltage, axp8xx_regnode_get_voltage),
REGNODEMETHOD(regnode_check_voltage, regnode_method_check_voltage),