PMICs are responsible for device poweroff sequence so lets implement this function.
Signed-off-by: Svyatoslav Ryhel clamor95@gmail.com --- drivers/power/pmic/pmic-uclass.c | 12 ++++++++++++ include/power/pmic.h | 13 +++++++++++++ 2 files changed, 25 insertions(+)
diff --git a/drivers/power/pmic/pmic-uclass.c b/drivers/power/pmic/pmic-uclass.c index 0e2f5e1f41..23803bc96a 100644 --- a/drivers/power/pmic/pmic-uclass.c +++ b/drivers/power/pmic/pmic-uclass.c @@ -99,6 +99,18 @@ int pmic_get(const char *name, struct udevice **devp) return uclass_get_device_by_name(UCLASS_PMIC, name, devp); }
+int pmic_poweroff(struct udevice *dev) +{ + const struct dm_pmic_ops *ops = dev_get_driver_ops(dev); + struct uc_pmic_priv *priv = dev_get_uclass_priv(dev); + + if (!ops || !ops->poweroff || + !priv->sys_pow_ctrl) + return -ENOSYS; + + return ops->poweroff(dev); +} + int pmic_reg_count(struct udevice *dev) { const struct dm_pmic_ops *ops = dev_get_driver_ops(dev); diff --git a/include/power/pmic.h b/include/power/pmic.h index 636221692d..d8dd1ceaa3 100644 --- a/include/power/pmic.h +++ b/include/power/pmic.h @@ -157,11 +157,13 @@ struct pmic { * Should be implemented by UCLASS_PMIC device drivers. The standard * device operations provides the I/O interface for it's childs. * + * @poweroff: perform poweroff sequence * @reg_count: device's register count * @read: read 'len' bytes at "reg" and store it into the 'buffer' * @write: write 'len' bytes from the 'buffer' to the register at 'reg' address */ struct dm_pmic_ops { + int (*poweroff)(struct udevice *dev); int (*reg_count)(struct udevice *dev); int (*read)(struct udevice *dev, uint reg, uint8_t *buffer, int len); int (*write)(struct udevice *dev, uint reg, const uint8_t *buffer, @@ -242,6 +244,16 @@ int pmic_bind_children(struct udevice *pmic, ofnode parent, */ int pmic_get(const char *name, struct udevice **devp);
+/** + * pmic_poweroff: call the pmic poweroff sequence + * + * The required pmic device can be obtained by 'pmic_get()' + * + * @dev - pointer to the UCLASS_PMIC device + * Return: device turns off or negative value of errno. + */ +int pmic_poweroff(struct udevice *dev); + /** * pmic_reg_count: get the pmic register count * @@ -306,6 +318,7 @@ int pmic_clrsetbits(struct udevice *dev, uint reg, uint clr, uint set); */ struct uc_pmic_priv { uint trans_len; + bool sys_pow_ctrl; };
#endif /* DM_PMIC */