Commit c1bfd74b authored by Tiezhu Yang's avatar Tiezhu Yang Committed by Alex Deucher
Browse files

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: default avatarJianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: default avatarJianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: default avatarTiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent 8dbe43e9

drivers/gpu/drm/radeon/radeon_drv.c

+4 −4
Original line number Diff line number Diff line
@@ -374,13 +374,13 @@ 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