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authorLoic Poulain <loic.poulain@gmail.com>2016-07-11 22:55:36 +0300
committerMarcel Holtmann <marcel@holtmann.org>2016-07-11 22:57:50 +0300
commit31eff2670301d0367ce06645e41c3b57db4e9e78 (patch)
treecf693267bc99585821c04fd296db60f347081ec5 /drivers/bluetooth
parentca8bee5dde1f02c2dbe8c8453dce27f2dfafb21c (diff)
downloadlinux-31eff2670301d0367ce06645e41c3b57db4e9e78.tar.xz
Bluetooth: hci_intel: Remove LPM enabling from setup procedure
LPM can be enabled via a DDC write command at specific DDC ID. As any other DDC value, this is up to the DDC config file to include (or not) the low power mode configuration. Signed-off-by: Loic Poulain <loic.poulain@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/hci_intel.c28
1 files changed, 7 insertions, 21 deletions
diff --git a/drivers/bluetooth/hci_intel.c b/drivers/bluetooth/hci_intel.c
index f6f2b01a1fea..ed0a4201b551 100644
--- a/drivers/bluetooth/hci_intel.c
+++ b/drivers/bluetooth/hci_intel.c
@@ -537,9 +537,7 @@ static int intel_setup(struct hci_uart *hu)
{
static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
0x00, 0x08, 0x04, 0x00 };
- static const u8 lpm_param[] = { 0x03, 0x07, 0x01, 0x0b };
struct intel_data *intel = hu->priv;
- struct intel_device *idev = NULL;
struct hci_dev *hdev = hu->hdev;
struct sk_buff *skb;
struct intel_version ver;
@@ -884,35 +882,23 @@ done:
bt_dev_info(hdev, "Device booted in %llu usecs", duration);
- /* Enable LPM if matching pdev with wakeup enabled */
+ /* Enable LPM if matching pdev with wakeup enabled, set TX active
+ * until further LPM TX notification.
+ */
mutex_lock(&intel_device_list_lock);
list_for_each(p, &intel_device_list) {
struct intel_device *dev = list_entry(p, struct intel_device,
list);
if (hu->tty->dev->parent == dev->pdev->dev.parent) {
- if (device_may_wakeup(&dev->pdev->dev))
- idev = dev;
+ if (device_may_wakeup(&dev->pdev->dev)) {
+ set_bit(STATE_LPM_ENABLED, &intel->flags);
+ set_bit(STATE_TX_ACTIVE, &intel->flags);
+ }
break;
}
}
mutex_unlock(&intel_device_list_lock);
- if (!idev)
- goto no_lpm;
-
- bt_dev_info(hdev, "Enabling LPM");
-
- skb = __hci_cmd_sync(hdev, 0xfc8b, sizeof(lpm_param), lpm_param,
- HCI_CMD_TIMEOUT);
- if (IS_ERR(skb)) {
- bt_dev_err(hdev, "Failed to enable LPM");
- goto no_lpm;
- }
- kfree_skb(skb);
-
- set_bit(STATE_LPM_ENABLED, &intel->flags);
-
-no_lpm:
/* Ignore errors, device can work without DDC parameters */
btintel_load_ddc_config(hdev, fwname);