[RFC PATCH 05/15] Bluetooth: hci_qca: merge qca_power into qca_serdev

[Dmitry Baryshkov]

There is no need to separate struct qca_power from the rest of struct
qca_serdev. Squash qca_power into the main struct, to simplify the
driver.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
 drivers/bluetooth/hci_qca.c | 60 +++++++++++++------------------------
 1 file changed, 20 insertions(+), 40 deletions(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 53deea2eb7b4..a21cec44720a 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -205,23 +205,15 @@ struct qca_device_data {
 	uint32_t capabilities;
 };
 
-/*
- * Platform data for the QCA Bluetooth power driver.
- */
-struct qca_power {
-	struct device *dev;
-	struct regulator_bulk_data *vreg_bulk;
-	int num_vregs;
-	bool vregs_on;
-};
-
 struct qca_serdev {
 	struct hci_uart	 serdev_hu;
 	struct gpio_desc *bt_en;
 	struct gpio_desc *sw_ctrl;
 	struct clk	 *susclk;
 	enum qca_btsoc_type btsoc_type;
-	struct qca_power *bt_power;
+	struct regulator_bulk_data *vreg_bulk;
+	int num_vregs;
+	bool vregs_on;
 	u32 init_speed;
 	u32 oper_speed;
 	const char *firmware_name;
@@ -1602,7 +1594,7 @@ static int qca_regulator_init(struct hci_uart *hu)
 	 * off the voltage regulator.
 	 */
 	qcadev = serdev_device_get_drvdata(hu->serdev);
-	if (!qcadev->bt_power->vregs_on) {
+	if (!qcadev->vregs_on) {
 		serdev_device_close(hu->serdev);
 		ret = qca_regulator_enable(qcadev);
 		if (ret)
@@ -1940,20 +1932,19 @@ static int qca_power_off(struct hci_dev *hdev)
 
 static int qca_regulator_enable(struct qca_serdev *qcadev)
 {
-	struct qca_power *power = qcadev->bt_power;
 	int ret;
 
 	/* Already enabled */
-	if (power->vregs_on)
+	if (qcadev->vregs_on)
 		return 0;
 
-	BT_DBG("enabling %d regulators)", power->num_vregs);
+	BT_DBG("enabling %d regulators)", qcadev->num_vregs);
 
-	ret = regulator_bulk_enable(power->num_vregs, power->vreg_bulk);
+	ret = regulator_bulk_enable(qcadev->num_vregs, qcadev->vreg_bulk);
 	if (ret)
 		return ret;
 
-	power->vregs_on = true;
+	qcadev->vregs_on = true;
 
 	ret = clk_prepare_enable(qcadev->susclk);
 	if (ret)
@@ -1964,38 +1955,34 @@ static int qca_regulator_enable(struct qca_serdev *qcadev)
 
 static void qca_regulator_disable(struct qca_serdev *qcadev)
 {
-	struct qca_power *power;
-
 	if (!qcadev)
 		return;
 
-	power = qcadev->bt_power;
-
 	/* Already disabled? */
-	if (!power->vregs_on)
+	if (!qcadev->vregs_on)
 		return;
 
-	regulator_bulk_disable(power->num_vregs, power->vreg_bulk);
-	power->vregs_on = false;
+	regulator_bulk_disable(qcadev->num_vregs, qcadev->vreg_bulk);
+	qcadev->vregs_on = false;
 
 	clk_disable_unprepare(qcadev->susclk);
 }
 
-static int qca_init_regulators(struct qca_power *qca,
+static int qca_init_regulators(struct qca_serdev *qcadev, struct device *dev,
 				const struct qca_vreg *vregs, size_t num_vregs)
 {
 	struct regulator_bulk_data *bulk;
 	int ret;
 	int i;
 
-	bulk = devm_kcalloc(qca->dev, num_vregs, sizeof(*bulk), GFP_KERNEL);
+	bulk = devm_kcalloc(dev, num_vregs, sizeof(*bulk), GFP_KERNEL);
 	if (!bulk)
 		return -ENOMEM;
 
 	for (i = 0; i < num_vregs; i++)
 		bulk[i].supply = vregs[i].name;
 
-	ret = devm_regulator_bulk_get(qca->dev, num_vregs, bulk);
+	ret = devm_regulator_bulk_get(dev, num_vregs, bulk);
 	if (ret < 0)
 		return ret;
 
@@ -2005,8 +1992,8 @@ static int qca_init_regulators(struct qca_power *qca,
 			return ret;
 	}
 
-	qca->vreg_bulk = bulk;
-	qca->num_vregs = num_vregs;
+	qcadev->vreg_bulk = bulk;
+	qcadev->num_vregs = num_vregs;
 
 	return 0;
 }
@@ -2037,21 +2024,15 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 	    (qca_is_wcn399x(data->soc_type) ||
 	    qca_is_wcn6750(data->soc_type))) {
 		qcadev->btsoc_type = data->soc_type;
-		qcadev->bt_power = devm_kzalloc(&serdev->dev,
-						sizeof(struct qca_power),
-						GFP_KERNEL);
-		if (!qcadev->bt_power)
-			return -ENOMEM;
-
-		qcadev->bt_power->dev = &serdev->dev;
-		err = qca_init_regulators(qcadev->bt_power, data->vregs,
+
+		err = qca_init_regulators(qcadev, &serdev->dev, data->vregs,
 					  data->num_vregs);
 		if (err) {
 			BT_ERR("Failed to init regulators:%d", err);
 			return err;
 		}
 
-		qcadev->bt_power->vregs_on = false;
+		qcadev->vregs_on = false;
 
 		qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable",
 					       GPIOD_OUT_LOW);
@@ -2135,11 +2116,10 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 static void qca_serdev_remove(struct serdev_device *serdev)
 {
 	struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
-	struct qca_power *power = qcadev->bt_power;
 
 	if ((qca_is_wcn399x(qcadev->btsoc_type) ||
 	     qca_is_wcn6750(qcadev->btsoc_type)) &&
-	     power->vregs_on)
+	     qcadev->vregs_on)
 		qca_power_shutdown(&qcadev->serdev_hu);
 	else if (qcadev->susclk)
 		clk_disable_unprepare(qcadev->susclk);
-- 
2.30.2