linux-kernel - [PATCH RFC 2/2] Bluetooth: hci_qca: use devm_clk_get_optional_enabled_with

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Message-Id: <20240801-clk-new-helper-v1-2-81e9338b7b17@linaro.org>
Date: Thu, 01 Aug 2024 17:58:50 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Russell King <linux@...linux.org.uk>, 
 Marcel Holtmann <marcel@...tmann.org>, 
 Luiz Augusto von Dentz <luiz.dentz@...il.com>
Cc: linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-bluetooth@...r.kernel.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH RFC 2/2] Bluetooth: hci_qca: use
 devm_clk_get_optional_enabled_with_rate()

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

Use the new devm_clk_get_optional_enabled_with_rate() clock helper to
shrink the code a bit.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 drivers/bluetooth/hci_qca.c | 24 ++----------------------
 1 file changed, 2 insertions(+), 22 deletions(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index ca6466676902..0670f527909c 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -2297,13 +2297,6 @@ static int qca_init_regulators(struct qca_power *qca,
 	return 0;
 }
 
-static void qca_clk_disable_unprepare(void *data)
-{
-	struct clk *clk = data;
-
-	clk_disable_unprepare(clk);
-}
-
 static int qca_serdev_probe(struct serdev_device *serdev)
 {
 	struct qca_serdev *qcadev;
@@ -2433,25 +2426,12 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 		if (!qcadev->bt_en)
 			power_ctrl_enabled = false;
 
-		qcadev->susclk = devm_clk_get_optional(&serdev->dev, NULL);
+		qcadev->susclk = devm_clk_get_optional_enabled_with_rate(
+					&serdev->dev, NULL, SUSCLK_RATE_32KHZ);
 		if (IS_ERR(qcadev->susclk)) {
 			dev_warn(&serdev->dev, "failed to acquire clk\n");
 			return PTR_ERR(qcadev->susclk);
 		}
-		err = clk_set_rate(qcadev->susclk, SUSCLK_RATE_32KHZ);
-		if (err)
-			return err;
-
-		err = clk_prepare_enable(qcadev->susclk);
-		if (err)
-			return err;
-
-		err = devm_add_action_or_reset(&serdev->dev,
-					       qca_clk_disable_unprepare,
-					       qcadev->susclk);
-		if (err)
-			return err;
-
 	}
 	
 	err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto);

-- 
2.43.0