diff options
Diffstat (limited to 'drivers/net/wwan/t7xx/t7xx_pci.h')
| -rw-r--r-- | drivers/net/wwan/t7xx/t7xx_pci.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/net/wwan/t7xx/t7xx_pci.h b/drivers/net/wwan/t7xx/t7xx_pci.h index dfd4a2f2095b..f51fc5a1301f 100644 --- a/drivers/net/wwan/t7xx/t7xx_pci.h +++ b/drivers/net/wwan/t7xx/t7xx_pci.h @@ -17,7 +17,9 @@ #ifndef __T7XX_PCI_H__ #define __T7XX_PCI_H__ +#include <linux/completion.h> #include <linux/irqreturn.h> +#include <linux/mutex.h> #include <linux/pci.h> #include <linux/types.h> @@ -49,6 +51,10 @@ typedef irqreturn_t (*t7xx_intr_callback)(int irq, void *param); * @md: modem interface * @ccmni_ctlb: context structure used to control the network data path * @rgu_pci_irq_en: RGU callback ISR registered and active + * @md_pm_entities: list of pm entities + * @md_pm_entity_mtx: protects md_pm_entities list + * @pm_sr_ack: ack from the device when went to sleep or woke up + * @md_pm_state: state for resume/suspend */ struct t7xx_pci_dev { t7xx_intr_callback intr_handler[EXT_INT_NUM]; @@ -59,6 +65,46 @@ struct t7xx_pci_dev { struct t7xx_modem *md; struct t7xx_ccmni_ctrl *ccmni_ctlb; bool rgu_pci_irq_en; + + /* Low Power Items */ + struct list_head md_pm_entities; + struct mutex md_pm_entity_mtx; /* Protects MD PM entities list */ + struct completion pm_sr_ack; + atomic_t md_pm_state; +}; + +enum t7xx_pm_id { + PM_ENTITY_ID_CTRL1, + PM_ENTITY_ID_CTRL2, + PM_ENTITY_ID_DATA, + PM_ENTITY_ID_INVALID +}; + +/* struct md_pm_entity - device power management entity + * @entity: list of PM Entities + * @suspend: callback invoked before sending D3 request to device + * @suspend_late: callback invoked after getting D3 ACK from device + * @resume_early: callback invoked before sending the resume request to device + * @resume: callback invoked after getting resume ACK from device + * @id: unique PM entity identifier + * @entity_param: parameter passed to the registered callbacks + * + * This structure is used to indicate PM operations required by internal + * HW modules such as CLDMA and DPMA. + */ +struct md_pm_entity { + struct list_head entity; + int (*suspend)(struct t7xx_pci_dev *t7xx_dev, void *entity_param); + void (*suspend_late)(struct t7xx_pci_dev *t7xx_dev, void *entity_param); + void (*resume_early)(struct t7xx_pci_dev *t7xx_dev, void *entity_param); + int (*resume)(struct t7xx_pci_dev *t7xx_dev, void *entity_param); + enum t7xx_pm_id id; + void *entity_param; }; +int t7xx_pci_pm_entity_register(struct t7xx_pci_dev *t7xx_dev, struct md_pm_entity *pm_entity); +int t7xx_pci_pm_entity_unregister(struct t7xx_pci_dev *t7xx_dev, struct md_pm_entity *pm_entity); +void t7xx_pci_pm_init_late(struct t7xx_pci_dev *t7xx_dev); +void t7xx_pci_pm_exp_detected(struct t7xx_pci_dev *t7xx_dev); + #endif /* __T7XX_PCI_H__ */ |