int mhi_suspend(struct pci_dev *pcie_dev, pm_message_t state)
{
int r = 0;
mhi_device_ctxt *mhi_dev_ctxt =
*(mhi_device_ctxt **)((pcie_dev->dev).platform_data);
mhi_log(MHI_MSG_ERROR, "[%s]\n", __func__);
if (NULL == mhi_dev_ctxt)
return -EINVAL;
mhi_log(MHI_MSG_INFO, "Entered, sys state %d, MHI state %d\n",
state.event, mhi_dev_ctxt->mhi_state);
atomic_set(&mhi_dev_ctxt->flags.pending_resume, 1);
r = cancel_work_sync(&mhi_dev_ctxt->m0_work);
if (r) {
atomic_set(&mhi_dev_ctxt->flags.m0_work_enabled, 0);
mhi_log(MHI_MSG_INFO, "M0 work cancelled\n");
}
r = mhi_initiate_m3(mhi_dev_ctxt);
if (!r)
return r;
atomic_set(&mhi_dev_ctxt->flags.pending_resume, 0);
mhi_log(MHI_MSG_ERROR, "Failing suspend sequence ret: %d\n",
r);
return r;
}
void delayed_m3(struct work_struct *work)
{
struct delayed_work *del_work = to_delayed_work(work);
mhi_device_ctxt *mhi_dev_ctxt = container_of(del_work, mhi_device_ctxt, m3_work);
mhi_initiate_m3(mhi_dev_ctxt);
}
ssize_t sysfs_init_M3(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int r = 0;
mhi_device_ctxt *mhi_dev_ctxt = mhi_devices.device_list[0].mhi_ctxt;
r = mhi_initiate_m3(mhi_dev_ctxt);
if (r) {
mhi_log(MHI_MSG_CRITICAL | MHI_DBG_POWER,
"Failed to suspend %d\n", r);
return r;
}
return count;
}
