spi: stm32-qspi: avoid __maybe_unused and use pm_ptr

Switch to usage of pm_ptr / SYSTEM_SLEEP_PM_OPS / RUNTIME_PM_OPS
in order to avoid having to mark the pm related functions as
__maybe_unused.

Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Link: https://patch.msgid.link/20260106-spi_st_maybe_unused_removal-v1-3-8f5ca7136e96@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: Alain Volmat

drivers/spi/spi-stm32-qspi.c

@@ -891,7 +891,7 @@ static void stm32_qspi_remove(struct platform_device *pdev)
 	clk_disable_unprepare(qspi->clk);
 }
 
-static int __maybe_unused stm32_qspi_runtime_suspend(struct device *dev)
+static int stm32_qspi_runtime_suspend(struct device *dev)
 {
 	struct stm32_qspi *qspi = dev_get_drvdata(dev);
 
@@ -900,21 +900,21 @@ static int __maybe_unused stm32_qspi_runtime_suspend(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused stm32_qspi_runtime_resume(struct device *dev)
+static int stm32_qspi_runtime_resume(struct device *dev)
 {
 	struct stm32_qspi *qspi = dev_get_drvdata(dev);
 
 	return clk_prepare_enable(qspi->clk);
 }
 
-static int __maybe_unused stm32_qspi_suspend(struct device *dev)
+static int stm32_qspi_suspend(struct device *dev)
 {
 	pinctrl_pm_select_sleep_state(dev);
 
 	return pm_runtime_force_suspend(dev);
 }
 
-static int __maybe_unused stm32_qspi_resume(struct device *dev)
+static int stm32_qspi_resume(struct device *dev)
 {
 	struct stm32_qspi *qspi = dev_get_drvdata(dev);
 	int ret;
@@ -938,9 +938,8 @@ static int __maybe_unused stm32_qspi_resume(struct device *dev)
 }
 
 static const struct dev_pm_ops stm32_qspi_pm_ops = {
-	SET_RUNTIME_PM_OPS(stm32_qspi_runtime_suspend,
-			   stm32_qspi_runtime_resume, NULL)
-	SET_SYSTEM_SLEEP_PM_OPS(stm32_qspi_suspend, stm32_qspi_resume)
+	RUNTIME_PM_OPS(stm32_qspi_runtime_suspend, stm32_qspi_runtime_resume, NULL)
+	SYSTEM_SLEEP_PM_OPS(stm32_qspi_suspend, stm32_qspi_resume)
 };
 
 static const struct of_device_id stm32_qspi_match[] = {
@@ -955,7 +954,7 @@ static struct platform_driver stm32_qspi_driver = {
 	.driver	= {
 		.name = "stm32-qspi",
 		.of_match_table = stm32_qspi_match,
-		.pm = &stm32_qspi_pm_ops,
+		.pm = pm_ptr(&stm32_qspi_pm_ops),
 	},
 };
 module_platform_driver(stm32_qspi_driver);