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qcacld-3.0: Use sync method to awake device

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Use sync wake when trying to awake device for register
accessing.
This can avoid device re-enter low power mode after
device_wake asserted.

Change-Id: I9ce421be0ecdf05a26388732cc8e15154c57a47a
CRs-Fixed: 2703608
This commit is contained in:
Lin Bai 2020-06-05 14:16:49 +08:00 committed by nshrivas
parent 3951d21516
commit 299a322de1
3 changed files with 48 additions and 0 deletions
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10
core/pld/inc/pld_common.h
View File

@ -644,6 +644,16 @@ void *pld_get_fw_ptr(struct device *dev);
int pld_auto_suspend(struct device *dev); int pld_auto_suspend(struct device *dev);
int pld_auto_resume(struct device *dev); int pld_auto_resume(struct device *dev);
int pld_force_wake_request(struct device *dev); int pld_force_wake_request(struct device *dev);
/**
* pld_force_wake_request_sync() - Request to awake MHI synchronously
* @dev: device
* @timeout_us: timeout in micro-sec request to wake
*
* Return: 0 for success
* Non zero failure code for errors
*/
int pld_force_wake_request_sync(struct device *dev, int timeout_us);
int pld_is_device_awake(struct device *dev); int pld_is_device_awake(struct device *dev);
int pld_force_wake_release(struct device *dev); int pld_force_wake_release(struct device *dev);
int pld_ce_request_irq(struct device *dev, unsigned int ce_id, int pld_ce_request_irq(struct device *dev, unsigned int ce_id,

26
core/pld/src/pld_common.c
View File

@ -1175,6 +1175,32 @@ int pld_force_wake_request(struct device *dev)
return ret; return ret;
} }
int pld_force_wake_request_sync(struct device *dev, int timeout_us)
{
int ret = 0;
enum pld_bus_type type = pld_get_bus_type(dev);
switch (type) {
case PLD_BUS_TYPE_PCIE:
ret = pld_pcie_force_wake_request_sync(dev, timeout_us);
break;
case PLD_BUS_TYPE_PCIE_FW_SIM:
case PLD_BUS_TYPE_IPCI_FW_SIM:
case PLD_BUS_TYPE_SNOC_FW_SIM:
case PLD_BUS_TYPE_SNOC:
case PLD_BUS_TYPE_SDIO:
case PLD_BUS_TYPE_USB:
case PLD_BUS_TYPE_IPCI:
break;
default:
pr_err("Invalid device type %d\n", type);
ret = -EINVAL;
break;
}
return ret;
}
/** /**
* pld_is_device_awake() - Check if it's ready to access MMIO registers * pld_is_device_awake() - Check if it's ready to access MMIO registers
* @dev: device * @dev: device

12
core/pld/src/pld_pcie.h
View File

@ -274,6 +274,12 @@ static inline int pld_pcie_force_wake_request(struct device *dev)
return 0; return 0;
} }
static inline int pld_pcie_force_wake_request_sync(struct device *dev,
int timeout_us)
{
return 0;
}
static inline int pld_pcie_is_device_awake(struct device *dev) static inline int pld_pcie_is_device_awake(struct device *dev)
{ {
return true; return true;
@ -512,6 +518,12 @@ static inline int pld_pcie_force_wake_request(struct device *dev)
return cnss_pci_force_wake_request(dev); return cnss_pci_force_wake_request(dev);
} }
static inline int pld_pcie_force_wake_request_sync(struct device *dev,
int timeout_us)
{
return cnss_pci_force_wake_request_sync(dev, timeout_us);
}
static inline int pld_pcie_is_device_awake(struct device *dev) static inline int pld_pcie_is_device_awake(struct device *dev)
{ {
return cnss_pci_is_device_awake(dev); return cnss_pci_is_device_awake(dev);