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drm/radeon: Call radeon_suspend_kms() in radeon_pci_shutdown() for Loongson64

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commit c1bfd74bfe upstream.

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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tiezhu Yang 2021-06-28 10:53:06 -04:00 committed by Greg Kroah-Hartman
parent 7aa28f2f67
commit 0d50d93d05
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/radeon/radeon_drv.c
View file

@ -416,13 +416,13 @@ radeon_pci_shutdown(struct pci_dev *pdev)
if (radeon_device_is_virtual())
radeon_pci_remove(pdev);
#ifdef CONFIG_PPC64
#if defined(CONFIG_PPC64) || defined(CONFIG_MACH_LOONGSON64)
/*
* Some adapters need to be suspended before a
* shutdown occurs in order to prevent an error
* during kexec.
* Make this power specific becauase it breaks
* some non-power boards.
* during kexec, shutdown or reboot.
* Make this power and Loongson specific because
* it breaks some other boards.
*/
radeon_suspend_kms(pci_get_drvdata(pdev), true, true, false);
#endif