linux-kernel - [PATCH] Bluetooth: btnxpuart: Switch to SYSTEM_SLEEP_PM

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Message-Id: <20241122135939.337327-1-festevam@gmail.com>
Date: Fri, 22 Nov 2024 10:59:39 -0300
From: Fabio Estevam <festevam@...il.com>
To: luiz.dentz@...il.com
Cc: amitkumar.karwar@....com,
	neeraj.sanjaykale@....com,
	marcel@...tmann.org,
	linux-bluetooth@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Fabio Estevam <festevam@...x.de>
Subject: [PATCH] Bluetooth: btnxpuart: Switch to SYSTEM_SLEEP_PM_OPS

From: Fabio Estevam <festevam@...x.de>

Replace SET_SYSTEM_SLEEP_PM_OPS() with its modern SYSTEM_SLEEP_PM_OPS()
alternative.

The combined usage of pm_sleep_ptr() and SYSTEM_SLEEP_PM_OPS() allows
the compiler to evaluate if the suspend/resume() functions
are used at build time or are simply dead code.

This allows removing the CONFIG_PM_SLEEP ifdefery from the
suspend/resume() functions.

Signed-off-by: Fabio Estevam <festevam@...x.de>
---
 drivers/bluetooth/btnxpuart.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/bluetooth/btnxpuart.c b/drivers/bluetooth/btnxpuart.c
index 569f5b7d6e46..06c1093c70ab 100644
--- a/drivers/bluetooth/btnxpuart.c
+++ b/drivers/bluetooth/btnxpuart.c
@@ -1588,7 +1588,6 @@ static void nxp_serdev_remove(struct serdev_device *serdev)
 	hci_free_dev(hdev);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int nxp_serdev_suspend(struct device *dev)
 {
 	struct btnxpuart_dev *nxpdev = dev_get_drvdata(dev);
@@ -1606,7 +1605,6 @@ static int nxp_serdev_resume(struct device *dev)
 	ps_control(psdata->hdev, PS_STATE_AWAKE);
 	return 0;
 }
-#endif
 
 static struct btnxpuart_data w8987_data __maybe_unused = {
 	.helper_fw_name = NULL,
@@ -1628,7 +1626,7 @@ static const struct of_device_id nxpuart_of_match_table[] __maybe_unused = {
 MODULE_DEVICE_TABLE(of, nxpuart_of_match_table);
 
 static const struct dev_pm_ops nxp_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(nxp_serdev_suspend, nxp_serdev_resume)
+	SYSTEM_SLEEP_PM_OPS(nxp_serdev_suspend, nxp_serdev_resume)
 };
 
 static struct serdev_device_driver nxp_serdev_driver = {
@@ -1637,7 +1635,7 @@ static struct serdev_device_driver nxp_serdev_driver = {
 	.driver = {
 		.name = "btnxpuart",
 		.of_match_table = of_match_ptr(nxpuart_of_match_table),
-		.pm = &nxp_pm_ops,
+		.pm = pm_sleep_ptr(&nxp_pm_ops),
 	},
 };
 
-- 
2.34.1