linux-kernel - [PATCH] rockchip: Make cdn_dp_resume depend on CONFIG_PM

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Date:   Sat, 27 Feb 2021 11:56:28 +0000
From:   Chen Jun <chenjun102@...wei.com>
To:     <linux-kernel@...r.kernel.org>,
        <linux-rockchip@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>
CC:     <hjc@...k-chips.com>, <heiko@...ech.de>, <airlied@...ux.ie>,
        <daniel@...ll.ch>, <dri-devel@...ts.freedesktop.org>,
        <rui.xiang@...wei.com>
Subject: [PATCH] rockchip: Make cdn_dp_resume depend on CONFIG_PM_SLEEP

If build Image without CONFIG_PM_SLEEP, there would be a compile warning:
warning: ‘cdn_dp_resume’ defined but not used [-Wunused-function]

Because SET_SYSTEM_SLEEP_PM_OPS will do nothing without CONFIG_PM_SLEEP.

Make cdn_dp_resume depend on CONFIG_PM_SLEEP

Signed-off-by: Chen Jun <chenjun102@...wei.com>
---
 drivers/gpu/drm/rockchip/cdn-dp-core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
index a4a45daf93f2..063a60d213ba 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
@@ -1121,6 +1121,7 @@ static int cdn_dp_suspend(struct device *dev)
 	return ret;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int cdn_dp_resume(struct device *dev)
 {
 	struct cdn_dp_device *dp = dev_get_drvdata(dev);
@@ -1133,6 +1134,7 @@ static int cdn_dp_resume(struct device *dev)
 
 	return 0;
 }
+#endif
 
 static int cdn_dp_probe(struct platform_device *pdev)
 {
-- 
2.25.0