[PATCH v2 14/26] drm: mediatek: Remove #ifdef guards for PM related functions

From: Paul Cercueil
Date: Tue Nov 29 2022 - 14:21:13 EST


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@xxxxxxxxxxxxxxx>
---
Cc: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx>
Cc: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Cc: Matthias Brugger <matthias.bgg@xxxxxxxxx>
Cc: linux-mediatek@xxxxxxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
---
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