lkml.org 
[lkml]   [2020]   [Jan]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v4] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up
Date
This patch adds a unified API qca_power_on() to support both wcn399x and
Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
regulators, and for Rome it pulls up the bt_en GPIO to power up the btsoc.
It also moves all the power up operation from hdev->open() to
hdev->setup().

Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
---

Changes in v2: None
Changes in v3:
-moved all the power up operation from open() to setup()
-updated the commit message
Changes in v4:
-made a single call to qca_power_on() in setup()


drivers/bluetooth/hci_qca.c | 48 +++++++++++++++++++++++--------------
1 file changed, 30 insertions(+), 18 deletions(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 82e4cd4b6663..6a67e5489b16 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -541,7 +541,6 @@ static int qca_open(struct hci_uart *hu)
{
struct qca_serdev *qcadev;
struct qca_data *qca;
- int ret;

BT_DBG("hu %p qca_open", hu);

@@ -582,23 +581,10 @@ static int qca_open(struct hci_uart *hu)
hu->priv = qca;

if (hu->serdev) {
-
qcadev = serdev_device_get_drvdata(hu->serdev);
- if (!qca_is_wcn399x(qcadev->btsoc_type)) {
- gpiod_set_value_cansleep(qcadev->bt_en, 1);
- /* Controller needs time to bootup. */
- msleep(150);
- } else {
+ if (qca_is_wcn399x(qcadev->btsoc_type)) {
hu->init_speed = qcadev->init_speed;
hu->oper_speed = qcadev->oper_speed;
- ret = qca_regulator_enable(qcadev);
- if (ret) {
- destroy_workqueue(qca->workqueue);
- kfree_skb(qca->rx_skb);
- hu->priv = NULL;
- kfree(qca);
- return ret;
- }
}
}

@@ -1531,6 +1517,31 @@ static int qca_wcn3990_init(struct hci_uart *hu)
return 0;
}

+static int qca_power_on(struct hci_dev *hdev)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+ enum qca_btsoc_type soc_type = qca_soc_type(hu);
+ struct qca_serdev *qcadev;
+ int ret = 0;
+
+ /* Non-serdev device usually is powered by external power
+ * and don't need additional action in driver for power on
+ */
+ if (!hu->serdev)
+ return 0;
+
+ if (qca_is_wcn399x(soc_type)) {
+ ret = qca_wcn3990_init(hu);
+ } else {
+ qcadev = serdev_device_get_drvdata(hu->serdev);
+ gpiod_set_value_cansleep(qcadev->bt_en, 1);
+ /* Controller needs time to bootup. */
+ msleep(150);
+ }
+
+ return ret;
+}
+
static int qca_setup(struct hci_uart *hu)
{
struct hci_dev *hdev = hu->hdev;
@@ -1553,6 +1564,10 @@ static int qca_setup(struct hci_uart *hu)
*/
set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);

+ ret = qca_power_on(hdev);
+ if (ret)
+ return ret;
+
if (qca_is_wcn399x(soc_type)) {
bt_dev_info(hdev, "setting up wcn3990");

@@ -1562,9 +1577,6 @@ static int qca_setup(struct hci_uart *hu)
set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
hu->hdev->shutdown = qca_power_off;
- ret = qca_wcn3990_init(hu);
- if (ret)
- return ret;

ret = qca_read_soc_version(hdev, &soc_ver, soc_type);
if (ret)
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
\
 
 \ /
  Last update: 2020-01-13 05:30    [W:0.079 / U:7.024 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site