Unverified Commit 73370820 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!14454 drm/vc4: hdmi: Avoid hang with debug registers when suspended 

Merge Pull Request from: @ci-robot 
 
PR sync from: Liu Chuang <liuchuang40@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/7NADRKAVCNXUKTNUTNINB2XO35Z3S5TL/ 
 
https://gitee.com/src-openeuler/kernel/issues/IBEDP5 
 
Link:https://gitee.com/openeuler/kernel/pulls/14454

 

Reviewed-by: default avatarXu Kuohai <xukuohai@huawei.com>
Signed-off-by: default avatarZhang Peng <zhangpeng362@huawei.com>
parents ab16ba9f d4759903

drivers/gpu/drm/vc4/vc4_hdmi.c

+4 −0
Original line number Diff line number Diff line
@@ -179,6 +179,8 @@ static int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused) 
	if (!drm_dev_enter(drm, &idx))

		return -ENODEV;



	WARN_ON(pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev));



	drm_print_regset32(&p, &vc4_hdmi->hdmi_regset);

	drm_print_regset32(&p, &vc4_hdmi->hd_regset);

	drm_print_regset32(&p, &vc4_hdmi->cec_regset);
@@ -188,6 +190,8 @@ static int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused) 
	drm_print_regset32(&p, &vc4_hdmi->ram_regset);

	drm_print_regset32(&p, &vc4_hdmi->rm_regset);



	pm_runtime_put(&vc4_hdmi->pdev->dev);



	drm_dev_exit(idx);



	return 0;