From 56cd9c86045b2e2a6fd3edfac07f133d3f23cb9b Mon Sep 17 00:00:00 2001
From: Hsin-Yi Wang <hsinyi@chromium.org>
Date: Thu, 30 Jun 2022 03:05:46 +0800
Subject: drm/mediatek: Ensure bridge disable happends before suspend
Git-commit: 0f15d785ff2d59884f6271bb4ba4522596f218c7
Patch-mainline: v6.0-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
Make sure bridge_disable will be called before suspend by calling
drm_mode_config_helper_suspend() in .prepare callback.
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20220629190545.478113-1-hsinyi@chromium.org/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 7b6fa960d2a4..aab4d2b0dc78 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -695,8 +695,7 @@ static int mtk_drm_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int mtk_drm_sys_suspend(struct device *dev)
+static int mtk_drm_sys_prepare(struct device *dev)
{
struct mtk_drm_private *private = dev_get_drvdata(dev);
struct drm_device *drm = private->drm;
@@ -707,20 +706,21 @@ static int mtk_drm_sys_suspend(struct device *dev)
return ret;
}
-static int mtk_drm_sys_resume(struct device *dev)
+static void mtk_drm_sys_complete(struct device *dev)
{
struct mtk_drm_private *private = dev_get_drvdata(dev);
struct drm_device *drm = private->drm;
int ret;
ret = drm_mode_config_helper_resume(drm);
-
- return ret;
+ if (ret)
+ dev_err(dev, "Failed to resume\n");
}
-#endif
-static SIMPLE_DEV_PM_OPS(mtk_drm_pm_ops, mtk_drm_sys_suspend,
- mtk_drm_sys_resume);
+static const struct dev_pm_ops mtk_drm_pm_ops = {
+ .prepare = mtk_drm_sys_prepare,
+ .complete = mtk_drm_sys_complete,
+};
static struct platform_driver mtk_drm_platform_driver = {
.probe = mtk_drm_probe,
--
2.38.1