linux-kernel - [PATCH v2 18/26] drm: rockchip: Remove #ifdef guards for PM related functions

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Message-Id: <20221129191942.138244-5-paul@crapouillou.net>
Date:   Tue, 29 Nov 2022 19:19:34 +0000
From:   Paul Cercueil <paul@...pouillou.net>
To:     David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Paul Cercueil <paul@...pouillou.net>,
        Sandy Huang <hjc@...k-chips.com>,
        Heiko Stübner <heiko@...ech.de>,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org
Subject: [PATCH v2 18/26] drm: rockchip: Remove #ifdef guards for PM related functions

Use the pm_sleep_ptr() macros to handle the .suspend_late /
.resume_early callbacks.

This macro allows the suspend and resume functions to be automatically
dropped by the compiler when CONFIG_SUSPEND is disabled, without having
to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---
Cc: Sandy Huang <hjc@...k-chips.com>
Cc: "Heiko Stübner" <heiko@...ech.de>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-rockchip@...ts.infradead.org
---
 drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
index ad2d3ae7e621..0df0fa540d7e 100644
--- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
+++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
@@ -429,7 +429,6 @@ static int rockchip_dp_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int rockchip_dp_suspend(struct device *dev)
 {
 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);
@@ -449,13 +448,10 @@ static int rockchip_dp_resume(struct device *dev)
 
 	return analogix_dp_resume(dp->adp);
 }
-#endif
 
 static const struct dev_pm_ops rockchip_dp_pm_ops = {
-#ifdef CONFIG_PM_SLEEP
 	.suspend_late = rockchip_dp_suspend,
 	.resume_early = rockchip_dp_resume,
-#endif
 };
 
 static const struct rockchip_dp_chip_data rk3399_edp = {
@@ -484,7 +480,7 @@ struct platform_driver rockchip_dp_driver = {
 	.remove = rockchip_dp_remove,
 	.driver = {
 		   .name = "rockchip-dp",
-		   .pm = &rockchip_dp_pm_ops,
+		   .pm = pm_sleep_ptr(&rockchip_dp_pm_ops),
 		   .of_match_table = rockchip_dp_dt_ids,
 	},
 };
-- 
2.35.1