Bluetooth: hci_qca: Replace devm_gpiod_get() with devm_gpiod_get_optional()

This patch replaces devm_gpiod_get() with devm_gpiod_get_optional() to get
bt_en and replaces devm_clk_get() with devm_clk_get_optional() to get
susclk. It also uses NULL check to determine whether the resource is
available or not.

Fixes: 8a208b24d770 ("Bluetooth: hci_qca: Make bt_en and susclk not mandatory for QCA Rome")
Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 325baa046c3ab95a6c02d84728c54aa76833ccb9..439392b1c043c5a97b1ce82726ead6a451b61cd4 100644 (file)
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1562,7 +1562,7 @@ static int qca_power_on(struct hci_dev *hdev)
                ret = qca_wcn3990_init(hu);
        } else {
                qcadev = serdev_device_get_drvdata(hu->serdev);
-               if (!IS_ERR(qcadev->bt_en)) {
+               if (qcadev->bt_en) {
                        gpiod_set_value_cansleep(qcadev->bt_en, 1);
                        /* Controller needs time to bootup. */
                        msleep(150);
@@ -1752,7 +1752,7 @@ static void qca_power_shutdown(struct hci_uart *hu)
                host_set_baudrate(hu, 2400);
                qca_send_power_pulse(hu, false);
                qca_regulator_disable(qcadev);
-       } else if (!IS_ERR(qcadev->bt_en)) {
+       } else if (qcadev->bt_en) {
                gpiod_set_value_cansleep(qcadev->bt_en, 0);
        }
 }
@@ -1901,15 +1901,15 @@ static int qca_serdev_probe(struct serdev_device *serdev)
                }
        } else {
                qcadev->btsoc_type = QCA_ROME;
-               qcadev->bt_en = devm_gpiod_get(&serdev->dev, "enable",
+               qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable",
                                               GPIOD_OUT_LOW);
-               if (IS_ERR(qcadev->bt_en)) {
+               if (!qcadev->bt_en) {
                        dev_warn(&serdev->dev, "failed to acquire enable gpio\n");
                        power_ctrl_enabled = false;
                }
 
-               qcadev->susclk = devm_clk_get(&serdev->dev, NULL);
-               if (IS_ERR(qcadev->susclk)) {
+               qcadev->susclk = devm_clk_get_optional(&serdev->dev, NULL);
+               if (!qcadev->susclk) {
                        dev_warn(&serdev->dev, "failed to acquire clk\n");
                } else {
                        err = clk_set_rate(qcadev->susclk, SUSCLK_RATE_32KHZ);
@@ -1924,7 +1924,7 @@ static int qca_serdev_probe(struct serdev_device *serdev)
                err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto);
                if (err) {
                        BT_ERR("Rome serdev registration failed");
-                       if (!IS_ERR(qcadev->susclk))
+                       if (qcadev->susclk)
                                clk_disable_unprepare(qcadev->susclk);
                        return err;
                }
@@ -1945,7 +1945,7 @@ static void qca_serdev_remove(struct serdev_device *serdev)
 
        if (qca_is_wcn399x(qcadev->btsoc_type))
                qca_power_shutdown(&qcadev->serdev_hu);
-       else if (!IS_ERR(qcadev->susclk))
+       else if (qcadev->susclk)
                clk_disable_unprepare(qcadev->susclk);
 
        hci_uart_unregister_device(&qcadev->serdev_hu);