From 3d0b93d92a2790337aa9d18cb332d02356a24126 Mon Sep 17 00:00:00 2001 From: Miaoqian Lin Date: Wed, 20 Apr 2022 21:50:07 +0800 Subject: drm/vc4: Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage If the device is already in a runtime PM enabled state pm_runtime_get_sync() will return 1. Also, we need to call pm_runtime_put_noidle() when pm_runtime_get_sync() fails, so use pm_runtime_resume_and_get() instead. this function will handle this. Fixes: 4078f5757144 ("drm/vc4: Add DSI driver") Signed-off-by: Miaoqian Lin Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20220420135008.2757-1-linmq006@gmail.com --- drivers/gpu/drm/vc4/vc4_dsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/vc4/vc4_dsi.c b/drivers/gpu/drm/vc4/vc4_dsi.c index 752f921735c6..98308a17e4ed 100644 --- a/drivers/gpu/drm/vc4/vc4_dsi.c +++ b/drivers/gpu/drm/vc4/vc4_dsi.c @@ -846,7 +846,7 @@ static void vc4_dsi_encoder_enable(struct drm_encoder *encoder) unsigned long phy_clock; int ret; - ret = pm_runtime_get_sync(dev); + ret = pm_runtime_resume_and_get(dev); if (ret) { DRM_ERROR("Failed to runtime PM enable on DSI%d\n", dsi->variant->port); return; -- cgit v1.2.3