Commit 66cb7051 authored by Venkata Lakshmi Narayana Gubba's avatar Venkata Lakshmi Narayana Gubba Committed by Marcel Holtmann

Bluetooth: hci_qca: Enable clocks required for BT SOC

Instead of relying on other subsytem to turn ON clocks
required for BT SoC to operate, voting them from the driver.
Signed-off-by: default avatarVenkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent fe664831
...@@ -1755,6 +1755,13 @@ static int qca_regulator_enable(struct qca_serdev *qcadev) ...@@ -1755,6 +1755,13 @@ static int qca_regulator_enable(struct qca_serdev *qcadev)
power->vregs_on = true; power->vregs_on = true;
ret = clk_prepare_enable(qcadev->susclk);
if (ret) {
/* Turn off regulators to overcome power leakage */
qca_regulator_disable(qcadev);
return ret;
}
return 0; return 0;
} }
...@@ -1773,6 +1780,9 @@ static void qca_regulator_disable(struct qca_serdev *qcadev) ...@@ -1773,6 +1780,9 @@ static void qca_regulator_disable(struct qca_serdev *qcadev)
regulator_bulk_disable(power->num_vregs, power->vreg_bulk); regulator_bulk_disable(power->num_vregs, power->vreg_bulk);
power->vregs_on = false; power->vregs_on = false;
if (qcadev->susclk)
clk_disable_unprepare(qcadev->susclk);
} }
static int qca_init_regulators(struct qca_power *qca, static int qca_init_regulators(struct qca_power *qca,
...@@ -1839,6 +1849,12 @@ static int qca_serdev_probe(struct serdev_device *serdev) ...@@ -1839,6 +1849,12 @@ static int qca_serdev_probe(struct serdev_device *serdev)
qcadev->bt_power->vregs_on = false; qcadev->bt_power->vregs_on = false;
qcadev->susclk = devm_clk_get_optional(&serdev->dev, NULL);
if (IS_ERR(qcadev->susclk)) {
dev_err(&serdev->dev, "failed to acquire clk\n");
return PTR_ERR(qcadev->susclk);
}
device_property_read_u32(&serdev->dev, "max-speed", device_property_read_u32(&serdev->dev, "max-speed",
&qcadev->oper_speed); &qcadev->oper_speed);
if (!qcadev->oper_speed) if (!qcadev->oper_speed)
......
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