linux-kernel - [PATCH RFC 08/14] ahci: qoriq: Switch from CONFIG_PM_SLEEP guards to pm_sleep

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Message-Id: <20250127-pm_ata-v1-8-f8f50c821a2a@gmail.com>
Date: Mon, 27 Jan 2025 13:46:03 +0100
From: Raphael Gallais-Pou <rgallaispou@...il.com>
To: Damien Le Moal <dlemoal@...nel.org>, Niklas Cassel <cassel@...nel.org>, 
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Hans de Goede <hdegoede@...hat.com>, 
 Patrice Chotard <patrice.chotard@...s.st.com>, Chen-Yu Tsai <wens@...e.org>, 
 Jernej Skrabec <jernej.skrabec@...il.com>, 
 Samuel Holland <samuel@...lland.org>, Viresh Kumar <vireshk@...nel.org>, 
 Geert Uytterhoeven <geert+renesas@...der.be>
Cc: linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org, 
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 linux-mediatek@...ts.infradead.org, linux-sunxi@...ts.linux.dev, 
 linux-renesas-soc@...r.kernel.org
Subject: [PATCH RFC 08/14] ahci: qoriq: Switch from CONFIG_PM_SLEEP guards
 to pm_sleep_ptr()

Letting the compiler remove these functions when the kernel is built
without CONFIG_PM_SLEEP support is simpler and less error prone than the
use of #ifdef based kernel configuration guards.

Signed-off-by: Raphael Gallais-Pou <rgallaispou@...il.com>
---
 drivers/ata/ahci_qoriq.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/ata/ahci_qoriq.c b/drivers/ata/ahci_qoriq.c
index 30e39885b64edf9cbb1eeca853659582f5296361..5f64bb8cd2e9c8d34403f76e5789fa435dce94ca 100644
--- a/drivers/ata/ahci_qoriq.c
+++ b/drivers/ata/ahci_qoriq.c
@@ -319,7 +319,6 @@ static int ahci_qoriq_probe(struct platform_device *pdev)
 	return rc;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int ahci_qoriq_resume(struct device *dev)
 {
 	struct ata_host *host = dev_get_drvdata(dev);
@@ -350,10 +349,10 @@ static int ahci_qoriq_resume(struct device *dev)
 
 	return rc;
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(ahci_qoriq_pm_ops, ahci_platform_suspend,
-			 ahci_qoriq_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(ahci_qoriq_pm_ops,
+				ahci_platform_suspend,
+				ahci_qoriq_resume);
 
 static struct platform_driver ahci_qoriq_driver = {
 	.probe = ahci_qoriq_probe,
@@ -362,7 +361,7 @@ static struct platform_driver ahci_qoriq_driver = {
 		.name = DRV_NAME,
 		.of_match_table = ahci_qoriq_of_match,
 		.acpi_match_table = ahci_qoriq_acpi_match,
-		.pm = &ahci_qoriq_pm_ops,
+		.pm = pm_sleep_ptr(&ahci_qoriq_pm_ops),
 	},
 };
 module_platform_driver(ahci_qoriq_driver);

-- 
2.48.0