diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/power/pmic/rk8xx.c | 50 |
1 files changed, 49 insertions, 1 deletions
diff --git a/drivers/power/pmic/rk8xx.c b/drivers/power/pmic/rk8xx.c index 5f442fea689..1ffbecc02a3 100644 --- a/drivers/power/pmic/rk8xx.c +++ b/drivers/power/pmic/rk8xx.c @@ -6,10 +6,50 @@ #include <common.h> #include <dm.h> +#include <dm/lists.h> #include <errno.h> #include <log.h> #include <power/rk8xx_pmic.h> #include <power/pmic.h> +#include <sysreset.h> + +static int rk8xx_sysreset_request(struct udevice *dev, enum sysreset_t type) +{ + struct rk8xx_priv *priv = dev_get_priv(dev->parent); + + if (type != SYSRESET_POWER_OFF) + return -EPROTONOSUPPORT; + + switch (priv->variant) { + case RK805_ID: + case RK808_ID: + case RK816_ID: + case RK818_ID: + pmic_clrsetbits(dev->parent, REG_DEVCTRL, 0, BIT(0)); + break; + case RK809_ID: + case RK817_ID: + pmic_clrsetbits(dev->parent, RK817_REG_SYS_CFG3, 0, + BIT(0)); + break; + default: + printf("Unknown PMIC RK%x: Cannot shutdown\n", + priv->variant); + return -EPROTONOSUPPORT; + }; + + return -EINPROGRESS; +} + +static struct sysreset_ops rk8xx_sysreset_ops = { + .request = rk8xx_sysreset_request, +}; + +U_BOOT_DRIVER(rk8xx_sysreset) = { + .name = "rk8xx_sysreset", + .id = UCLASS_SYSRESET, + .ops = &rk8xx_sysreset_ops, +}; static struct reg_data rk817_init_reg[] = { /* enable the under-voltage protection, @@ -61,7 +101,7 @@ static int rk8xx_read(struct udevice *dev, uint reg, uint8_t *buff, int len) static int rk8xx_bind(struct udevice *dev) { ofnode regulators_node; - int children; + int children, ret; regulators_node = dev_read_subnode(dev, "regulators"); if (!ofnode_valid(regulators_node)) { @@ -72,6 +112,14 @@ static int rk8xx_bind(struct udevice *dev) debug("%s: '%s' - found regulators subnode\n", __func__, dev->name); + if (CONFIG_IS_ENABLED(SYSRESET)) { + ret = device_bind_driver_to_node(dev, "rk8xx_sysreset", + "rk8xx_sysreset", + dev_ofnode(dev), NULL); + if (ret) + return ret; + } + children = pmic_bind_children(dev, regulators_node, pmic_children_info); if (!children) debug("%s: %s - no child found\n", __func__, dev->name); |