drm/panthor: Use a local iomem base for PWR registers

Browse source

Add a PWR_CONTROL-local iomem pointer to struct panthor_pwr and switch
power controller register accesses to that base.

Update IRQ-local iomem base to use PWR_CONTROl-local iomem and update
the register definitions so the PWR block can be addressed relative to
its local base. This removes the remaining dependence on the global
device MMIO mapping for PWR register accesses. Update
panthor_gpu_info_init() to also use the correct PWR_CONTROL iomem for
the *_PRESENT registers.

No functional change intended.

v3:
- Clean up definitions for pwr->iomem and pwr->irq.iomem.
- Update PWR_INT_BASE to be relative to pwr->iomem.
v2:
- Update panthor_gpu_info_init() to use block-local iomem pointer.

Signed-off-by: Karunika Choo <karunika.choo@arm.com>
Acked-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patch.msgid.link/20260427155934.416502-7-karunika.choo@arm.com

...

This commit is contained in:

Karunika Choo 2026-04-27 16:59:32 +01:00 • committed by Liviu Dudau

parent 247ae9a8ab

commit 062b802da6

3 changed files with 79 additions and 58 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

8

drivers/gpu/drm/panthor/panthor_hw.c

View file

81

drivers/gpu/drm/panthor/panthor_pwr.c

View file

50

drivers/gpu/drm/panthor/panthor_pwr_regs.h

View file