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

drivers/bluetooth/hci_qca.c

+16 −0
Original line number Diff line number Diff line
@@ -1755,6 +1755,13 @@ static int qca_regulator_enable(struct qca_serdev *qcadev) 


	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;

}
@@ -1773,6 +1780,9 @@ static void qca_regulator_disable(struct qca_serdev *qcadev) 


	regulator_bulk_disable(power->num_vregs, power->vreg_bulk);

	power->vregs_on = false;



	if (qcadev->susclk)

		clk_disable_unprepare(qcadev->susclk);

}



static int qca_init_regulators(struct qca_power *qca,
@@ -1839,6 +1849,12 @@ static int qca_serdev_probe(struct serdev_device *serdev) 


		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",

					 &qcadev->oper_speed);

		if (!qcadev->oper_speed)