diff options
Diffstat (limited to 'drivers/staging/heci/heci_init.c')
| -rw-r--r-- | drivers/staging/heci/heci_init.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/staging/heci/heci_init.c b/drivers/staging/heci/heci_init.c index a8a0da910cf..31fd891c099 100644 --- a/drivers/staging/heci/heci_init.c +++ b/drivers/staging/heci/heci_init.c @@ -249,7 +249,7 @@ int heci_hw_init(struct iamt_heci_device *dev) if ((dev->host_hw_state & H_IS) == H_IS) { /* acknowledge interrupt and stop interupts */ - heci_set_csr_register(dev); + heci_csr_clear_his(dev); } dev->recvd_msg = 0; DBG("reset in start the heci device.\n"); @@ -354,7 +354,7 @@ void heci_reset(struct iamt_heci_device *dev, int interrupts) dev->host_hw_state &= ~H_RST; dev->host_hw_state |= H_IG; - write_heci_register(dev, H_CSR, dev->host_hw_state); + heci_set_csr_register(dev); DBG("currently saved host_hw_state = 0x%08x.\n", dev->host_hw_state); @@ -998,8 +998,12 @@ int heci_disconnect_host_client(struct iamt_heci_device *dev, if ((!dev) || (!file_ext)) return -ENODEV; - if (file_ext->state != HECI_FILE_DISCONNECTING) + spin_lock_bh(&dev->device_lock); + if (file_ext->state != HECI_FILE_DISCONNECTING) { + spin_unlock_bh(&dev->device_lock); return 0; + } + spin_unlock_bh(&dev->device_lock); priv_cb = kzalloc(sizeof(struct heci_cb_private), GFP_KERNEL); if (!priv_cb) @@ -1012,6 +1016,7 @@ int heci_disconnect_host_client(struct iamt_heci_device *dev, if (dev->host_buffer_is_empty) { dev->host_buffer_is_empty = 0; if (heci_disconnect(dev, file_ext)) { + mdelay(10); /* Wait for hardware disconnection ready */ list_add_tail(&priv_cb->cb_list, &dev->ctrl_rd_list.heci_cb.cb_list); } else { @@ -1030,6 +1035,8 @@ int heci_disconnect_host_client(struct iamt_heci_device *dev, err = wait_event_timeout(dev->wait_recvd_msg, (HECI_FILE_DISCONNECTED == file_ext->state), timeout * HZ); + + spin_lock_bh(&dev->device_lock); if (HECI_FILE_DISCONNECTED == file_ext->state) { rets = 0; DBG("successfully disconnected from fw client.\n"); @@ -1044,7 +1051,6 @@ int heci_disconnect_host_client(struct iamt_heci_device *dev, DBG("failed to disconnect from fw client.\n"); } - spin_lock_bh(&dev->device_lock); heci_flush_list(&dev->ctrl_rd_list, file_ext); heci_flush_list(&dev->ctrl_wr_list, file_ext); spin_unlock_bh(&dev->device_lock); |