drm/radeon: Call radeon_suspend_kms() in radeon_pci_shutdown() for Loongson64
authorTiezhu Yang <yangtiezhu@loongson.cn>
Mon, 28 Jun 2021 14:53:06 +0000 (10:53 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 1 Jul 2021 04:05:13 +0000 (00:05 -0400)
commitc1bfd74bfef77bcefc88d12eaf8996c0dfd51331
tree5675b93d42082519bd06b217ab83ecccb8d5b434
parent8dbe43e99f0f62fc4f829b4fedc5d628a329fc38
drm/radeon: Call radeon_suspend_kms() in radeon_pci_shutdown() for Loongson64

On the Loongson64 platform used with Radeon GPU, shutdown or reboot failed
when console=tty is in the boot cmdline.

radeon_suspend_kms() puts the hw in the suspend state, especially set fb
state as FBINFO_STATE_SUSPENDED:

        if (fbcon) {
                console_lock();
                radeon_fbdev_set_suspend(rdev, 1);
                console_unlock();
        }

Then avoid to do any more fb operations in the related functions:

        if (p->state != FBINFO_STATE_RUNNING)
                return;

So call radeon_suspend_kms() in radeon_pci_shutdown() for Loongson64 to fix
this issue, it looks like some kind of workaround like powerpc.

Co-developed-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/radeon/radeon_drv.c