[PATCH] Revert "drm/panthor: Fix undefined panthor_device_suspend/resume symbol issue"

[Jani Nikula]

This reverts commit 674dc7f61aefea81901c21402946074927e63f1a.

The commit causes a recursive dependency in kconfig:

drivers/iommu/Kconfig:14:error: recursive dependency detected!
drivers/iommu/Kconfig:14:	symbol IOMMU_SUPPORT is selected by DRM_PANTHOR
drivers/gpu/drm/panthor/Kconfig:3:	symbol DRM_PANTHOR depends on PM
kernel/power/Kconfig:183:	symbol PM is selected by PM_SLEEP
kernel/power/Kconfig:117:	symbol PM_SLEEP depends on HIBERNATE_CALLBACKS
kernel/power/Kconfig:35:	symbol HIBERNATE_CALLBACKS is selected by XEN_SAVE_RESTORE
arch/x86/xen/Kconfig:67:	symbol XEN_SAVE_RESTORE depends on XEN
arch/x86/xen/Kconfig:6:	symbol XEN depends on PARAVIRT
arch/x86/Kconfig:781:	symbol PARAVIRT is selected by HYPERV
drivers/hv/Kconfig:5:	symbol HYPERV depends on X86_LOCAL_APIC
arch/x86/Kconfig:1106:	symbol X86_LOCAL_APIC depends on X86_UP_APIC
arch/x86/Kconfig:1081:	symbol X86_UP_APIC prompt is visible depending on PCI_MSI
drivers/pci/Kconfig:39:	symbol PCI_MSI is selected by AMD_IOMMU
drivers/iommu/amd/Kconfig:3:	symbol AMD_IOMMU depends on IOMMU_SUPPORT
For a resolution refer to Documentation/kbuild/kconfig-language.rst
subsection "Kconfig recursive dependency limitations"

Fixes: 674dc7f61aef ("drm/panthor: Fix undefined panthor_device_suspend/resume symbol issue")
Cc: Boris Brezillon <boris.brezillon at collabora.com>
Cc: Liviu Dudau <liviu.dudau at arm.com>
Cc: Steven Price <steven.price at arm.com>
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/panthor/Kconfig          | 1 -
 drivers/gpu/drm/panthor/panthor_device.c | 2 ++
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panthor/Kconfig b/drivers/gpu/drm/panthor/Kconfig
index fdce7c1b2310..55b40ad07f3b 100644
--- a/drivers/gpu/drm/panthor/Kconfig
+++ b/drivers/gpu/drm/panthor/Kconfig
@@ -6,7 +6,6 @@ config DRM_PANTHOR
 	depends on ARM || ARM64 || COMPILE_TEST
 	depends on !GENERIC_ATOMIC64  # for IOMMU_IO_PGTABLE_LPAE
 	depends on MMU
-	depends on PM
 	select DEVFREQ_GOV_SIMPLE_ONDEMAND
 	select DRM_EXEC
 	select DRM_GEM_SHMEM_HELPER
diff --git a/drivers/gpu/drm/panthor/panthor_device.c b/drivers/gpu/drm/panthor/panthor_device.c
index 083888b48591..69deb8e17778 100644
--- a/drivers/gpu/drm/panthor/panthor_device.c
+++ b/drivers/gpu/drm/panthor/panthor_device.c
@@ -402,6 +402,7 @@ int panthor_device_mmap_io(struct panthor_device *ptdev, struct vm_area_struct *
 	return 0;
 }
 
+#ifdef CONFIG_PM
 int panthor_device_resume(struct device *dev)
 {
 	struct panthor_device *ptdev = dev_get_drvdata(dev);
@@ -546,3 +547,4 @@ int panthor_device_suspend(struct device *dev)
 	mutex_unlock(&ptdev->pm.mmio_lock);
 	return ret;
 }
+#endif
-- 
2.39.2