Hi Matt,
在 2020-01-09 02:34，Matthias Kaehlcke 写道：
Hi Rocky,
On Wed, Jan 08, 2020 at 05:08:02PM +0800, Rocky Liao wrote:
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.
Signed-off-by: Rocky Liao <rjliao@xxxxxxxxxxxxxx>
---
Changes in v2: None
drivers/bluetooth/hci_qca.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 9392cc7f9908..f6555bd1adbc 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1532,6 +1532,27 @@ 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;
+
+ if (qca_is_wcn399x(soc_type)) {
Why not include the qca_regulator_enable() call from qca_open() here?
It is clearly part of power on.
OK
+ ret = qca_wcn3990_init(hu);
+ } else {
+ if (hu->serdev) {
nit: you could save a level of indentation (and IMO improve
readability) by doing:
if (!hu->serdev)
return 0;
OK
+ qcadev = serdev_device_get_drvdata(hu->serdev);
+ gpiod_set_value_cansleep(qcadev->bt_en, 1);
+ /* Controller needs time to bootup. */
+ msleep(150);
+ }
+ }
+
+ return ret;
+}
+
I think common practice would be to combine the 3 patches of this
series
into one. The new function doesn't really add any new functionality,
but
is a refactoring. This is more evident if you see in a single diff that
the pieces in qca_power_on() are removed elsewhere.
OK
