drm/panthor: Introduce panthor_pwr API and power control framework

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Add the new panthor_pwr module, which provides basic power control
management for Mali-G1 GPUs. The initial implementation includes
infrastructure for initializing the PWR_CONTROL block, requesting and
handling its IRQ, and checking for PWR_CONTROL support based on GPU
architecture.

The patch also integrates panthor_pwr with the device lifecycle (init,
suspend, resume, and unplug) through the new API functions. It also
registers the IRQ handler under the 'gpu' IRQ as the PWR_CONTROL block
is located within the GPU_CONTROL block.

Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Karunika Choo <karunika.choo@arm.com>
Link: https://patch.msgid.link/20251125125548.3282320-4-karunika.choo@arm.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>

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This commit is contained in:

Karunika Choo 2025-11-25 12:55:43 +00:00 • committed by Boris Brezillon

parent 7d334f5c0b

commit c27787f2b7

7 changed files with 240 additions and 1 deletions

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1

drivers/gpu/drm/panthor/Makefile

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14

drivers/gpu/drm/panthor/panthor_device.c

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4

drivers/gpu/drm/panthor/panthor_device.h

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6

drivers/gpu/drm/panthor/panthor_hw.h

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121

drivers/gpu/drm/panthor/panthor_pwr.c

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17

drivers/gpu/drm/panthor/panthor_pwr.h

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78

drivers/gpu/drm/panthor/panthor_regs.h

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