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From:   Paul Cercueil <paul@crapouillou.net>
To:     David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>
Cc:     dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
        Paul Cercueil <paul@crapouillou.net>,
        Chun-Kuang Hu <chunkuang.hu@kernel.org>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        linux-mediatek@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 14/26] drm: mediatek: Remove #ifdef guards for PM related functions
Date:   Tue, 29 Nov 2022 19:19:30 +0000
Message-Id: <20221129191942.138244-1-paul@crapouillou.net>
In-Reply-To: <20221129191733.137897-1-paul@crapouillou.net>
References: <20221129191733.137897-1-paul@crapouillou.net>
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Use the DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() macros to handle
the .suspend/.resume callbacks.

These macros allow 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@crapouillou.net>
---
Cc: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-mediatek@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
---
 drivers/gpu/drm/mediatek/mtk_dp.c   | 6 ++----
 drivers/gpu/drm/mediatek/mtk_hdmi.c | 9 ++++-----
 2 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c
index 9d085c05c49c..00861a914855 100644
--- a/drivers/gpu/drm/mediatek/mtk_dp.c
+++ b/drivers/gpu/drm/mediatek/mtk_dp.c
@@ -2590,7 +2590,6 @@ static int mtk_dp_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int mtk_dp_suspend(struct device *dev)
 {
 	struct mtk_dp *mtk_dp = dev_get_drvdata(dev);
@@ -2613,9 +2612,8 @@ static int mtk_dp_resume(struct device *dev)
 
 	return 0;
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(mtk_dp_pm_ops, mtk_dp_suspend, mtk_dp_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(mtk_dp_pm_ops, mtk_dp_suspend, mtk_dp_resume);
 
 static const struct mtk_dp_data mt8195_edp_data = {
 	.bridge_type = DRM_MODE_CONNECTOR_eDP,
@@ -2650,7 +2648,7 @@ static struct platform_driver mtk_dp_driver = {
 	.driver = {
 		.name = "mediatek-drm-dp",
 		.of_match_table = mtk_dp_of_match,
-		.pm = &mtk_dp_pm_ops,
+		.pm = pm_sleep_ptr(&mtk_dp_pm_ops),
 	},
 };
 
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index 0a8e0a13f516..52f77a6af10f 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1755,7 +1755,6 @@ static int mtk_drm_hdmi_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int mtk_hdmi_suspend(struct device *dev)
 {
 	struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
@@ -1778,9 +1777,9 @@ static int mtk_hdmi_resume(struct device *dev)
 
 	return 0;
 }
-#endif
-static SIMPLE_DEV_PM_OPS(mtk_hdmi_pm_ops,
-			 mtk_hdmi_suspend, mtk_hdmi_resume);
+
+static DEFINE_SIMPLE_DEV_PM_OPS(mtk_hdmi_pm_ops,
+				mtk_hdmi_suspend, mtk_hdmi_resume);
 
 static const struct mtk_hdmi_conf mtk_hdmi_conf_mt2701 = {
 	.tz_disabled = true,
@@ -1810,7 +1809,7 @@ static struct platform_driver mtk_hdmi_driver = {
 	.driver = {
 		.name = "mediatek-drm-hdmi",
 		.of_match_table = mtk_drm_hdmi_of_ids,
-		.pm = &mtk_hdmi_pm_ops,
+		.pm = pm_sleep_ptr(&mtk_hdmi_pm_ops),
 	},
 };
 
-- 
2.35.1